London to Liverpool bus with National Express

Tue, 05 May
+ Add return
National Express
FlixBus
Megabus
London Buses
Alsa
2,000+ travel companies
National Express
FlixBus
Megabus
London Buses
Alsa
2,000+ travel companies
QR-Code
Scan to get our free app
Use our app to get live travel updates and book mobile tickets for trains, buses, flights, and ferries.
App Store
rate4.9
42K ratings
Google Play
rate4.6
136K reviews

The cheapest and fastest coaches from London to Liverpool

Showing times and prices for 05 May

Cheapest price

$27

Average price

$67

Fastest journey

4 h 55 m

Average duration

5 h 5 m

Buses per day

48

Distance

286 km

Cheap tickets

The best way to find a cheap coach ticket from London to Liverpool is to book your journey as far in advance as possible and to avoid travelling at rush hour.

The average ticket from London to Liverpool will cost around $67 if you buy it on the day, but you can find cheap coach tickets today for only $27.

Fast coaches

Of the 48 buses that leave London for Liverpool every day 21 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.

These direct buses cover the 286 km distance in an average of 5 h 5 m but if you time it right, some buses will get you there in just 4 h 55 m .

The slowest buses will take 5 h 20 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.

  • FlixBusFlixBus
    10:00 AM5h50
    London, Victoria Coach Station
    3:50 PMLiverpool, Liverpool One
    $271One-way
    0 changes
  • FlixBusFlixBus
    10:40 AM5h10
    London, Finchley Road ("Subway" restaurant)
    3:50 PMLiverpool, Liverpool One
    $271One-way
    0 changes
  • FlixBusFlixBus
    6:00 AM5h35
    London, Victoria Coach Station
    11:35 AMLiverpool, Liverpool One
    $291One-way
    0 changes
  • FlixBusFlixBus
    8:00 AM5h50
    London, Victoria Coach Station
    1:50 PMLiverpool, Liverpool One
    $291One-way
    0 changes
  • FlixBusFlixBus
    1:40 PM5h35
    London, Finchley Road ("Subway" restaurant)
    7:15 PMLiverpool, Liverpool One
    $291One-way
    0 changes

Travel Information

Compare train and coach for London to Liverpool

Omio recommends booking the train as it is the most popular option from London to Liverpool among Omio's users. If you are prioritising price take the coach with prices starting from $10. For those with little time consider booking a train which can get you there in 4h 19m. In case you are seeking to minimise your carbon footprint the train is your best bet as it emits only 0.1 - 0.3kg. The ticket price range depends on the travel mode: a coach costs an average of $10, and a train costs an average of $21.

Distance: 286 km

Compare bus with

Coach
Most popular
Train

$23

Average Price

Cheapest

$59

Average Price

5h 19m

Average total duration

4h 49m

Onboard

+

30m

Additional time*

4h 49m

Average total duration

Fastest

4h 19m

Onboard

+

30m

Additional time*

0.3 - 0.7kg

CO2 emissions

0.1 - 0.3kg

CO2 emissions

Lowest
National Express

Most popular bus company

Avanti West Coast

Most popular train company

Direct Options

Direct Options

Additional time: Average total travel duration to departure point, security checks and transfers.

Live departures

London to Liverpool bus times

The table below shows live departures for London to Liverpool coaches for today, Monday, 4 May. You can also manually refresh the results below to see updated coach journeys.

Last updated at
ProviderDepartsDurationArrivesChanges
Tickets
national_expressNX540 · NX170
On time
1:00 PM London, Victoria Coach Station
7h24
8:24 PM Liverpool, Botanic Park
1 change
meinfernbus_flixbusFlixBus1:00 PM London, Victoria Coach Station
6h15
7:15 PM Liverpool, Liverpool One0 changesdirect
national_expressNX540 · NX170
On time
1:00 PM London, Victoria Coach Station
7h30
8:30 PM Liverpool, University
1 change
meinfernbus_flixbusFlixBus · FlixBus1:10 PM London, Finchley Road ("Subway" restaurant)
7h05
8:15 PM Liverpool, Wavertree Shopping Centre1 change
national_expressNX541
Delayed
1:45 PM 1:30 PMLondon, Victoria Coach Station
6h55
8:25 PM Liverpool, One Bus Station, Canning Place
0 changesdirect
meinfernbus_flixbusFlixBus1:40 PM London, Finchley Road ("Subway" restaurant)
5h35
7:15 PM Liverpool, Liverpool One0 changesdirect
national_expressNX541 · NX170
On time
2:45 PM London, Victoria Coach Station
6h44
9:29 PM Liverpool, Botanic Park
1 change
national_expressNX541 · NX170
On time
2:45 PM London, Victoria Coach Station
6h50
9:35 PM Liverpool, University
1 change
national_expressNX541 · NX170
On time
2:45 PM London, Victoria Coach Station
7h00
9:45 PM Liverpool, One Bus Station, Canning Place
1 change
meinfernbus_flixbusFlixBus3:00 PM London, Victoria Coach Station
5h35
8:35 PM Liverpool, Liverpool One0 changesdirect
national_expressNX540
On time
3:30 PM London, Victoria Coach Station
6h20
9:50 PM Liverpool, One Bus Station, Canning Place
0 changesdirect
meinfernbus_flixbusFlixBus3:40 PM London, Finchley Road ("Subway" restaurant)
4h55
8:35 PM Liverpool, Liverpool One0 changesdirect
national_expressNX541 · NX170
On time
3:45 PM London, Victoria Coach Station
6h55
10:40 PM Liverpool, University
1 change
national_expressNX541 · NX170
On time
3:45 PM London, Victoria Coach Station
7h05
10:50 PM Liverpool, One Bus Station, Canning Place
1 change
national_expressNX541 · NX170
On time
3:45 PM London, Victoria Coach Station
6h48
10:33 PM Liverpool, Botanic Park
1 change
national_expressNX540 · NX170
On time
4:30 PM London, Victoria Coach Station
7h03
11:33 PM Liverpool, Botanic Park
1 change
national_expressNX540 · NX170
On time
4:30 PM London, Victoria Coach Station
7h10
11:40 PM Liverpool, University
1 change
national_expressNX541
On time
5:00 PM London, Victoria Coach Station
6h40
11:40 PM Liverpool, One Bus Station, Canning Place
0 changesdirect
national_expressNX541 · NX170
On time
6:15 PM London, Victoria Coach Station
6h40
12:55 AM Liverpool, One Bus Station, Canning Place
1 change
national_expressNX541 · NX170
On time
6:15 PM London, Victoria Coach Station
6h30
12:45 AM Liverpool, University
1 change
national_expressNX541 · NX170
On time
6:15 PM London, Victoria Coach Station
6h23
12:38 AM Liverpool, Botanic Park
1 change
national_expressNX540
On time
7:00 PM London, Victoria Coach Station
6h05
1:05 AM Liverpool, One Bus Station, Canning Place
0 changesdirect
meinfernbus_flixbusFlixBus7:00 PM London, Victoria Coach Station
5h30
12:30 AM Liverpool, Liverpool One0 changesdirect
national_expressNX540 · NX170
On time
7:00 PM London, Victoria Coach Station
6h43
1:43 AM Liverpool, Botanic Park
1 change
national_expressNX540 · NX170
On time
7:00 PM London, Victoria Coach Station
6h50
1:50 AM Liverpool, University
1 change
meinfernbus_flixbusFlixBus7:35 PM London, Finchley Road ("Subway" restaurant)
4h55
12:30 AM Liverpool, Liverpool One0 changesdirect
meinfernbus_flixbusFlixBus · FlixBus11:00 PM London, Finchley Road ("Subway" restaurant)
7h05
6:05 AM Liverpool, Liverpool One1 change
national_expressNX424 · NX170
On time
11:30 PM London, Victoria Coach Station
9h33
9:03 AM Liverpool, Botanic Park
1 change
meinfernbus_flixbusFlixBus11:30 PM London, Victoria Coach Station
6h35
6:05 AM Liverpool, Liverpool One0 changesdirect
national_expressNX424 · NX170
On time
11:30 PM London, Victoria Coach Station
9h40
9:10 AM Liverpool, University
1 change
national_expressNX440 · NX421
On time
11:59 PM London, Victoria Coach Station
8h36
8:35 AM Liverpool, One Bus Station, Canning Place
1 change
Tuesday, 5 May
meinfernbus_flixbusFlixBus12:05 AM London, Finchley Road ("Subway" restaurant)
6h00
6:05 AM Liverpool, Liverpool One0 changesdirect
national_expressNX4212:00 AM London, Victoria Coach Station
6h35
8:35 AM Liverpool, One Bus Station, Canning Place0 changesdirect
national_expressNX421 · NX1702:00 AM London, Victoria Coach Station
7h10
9:10 AM Liverpool, University1 change
national_expressNX421 · NX1702:00 AM London, Victoria Coach Station
7h03
9:03 AM Liverpool, Botanic Park1 change
meinfernbus_flixbusFlixBus6:00 AM London, Victoria Coach Station
5h35
11:35 AM Liverpool, Liverpool One0 changesdirect
meinfernbus_flixbusFlixBus6:30 AM London, Finchley Road ("Subway" restaurant)
5h05
11:35 AM Liverpool, Liverpool One0 changesdirect
meinfernbus_flixbusFlixBus8:00 AM London, Victoria Coach Station
5h50
1:50 PM Liverpool, Liverpool One0 changesdirect
meinfernbus_flixbusFlixBus8:30 AM London, Finchley Road ("Subway" restaurant)
5h20
1:50 PM Liverpool, Liverpool One0 changesdirect
meinfernbus_flixbusFlixBus10:00 AM London, Victoria Coach Station
5h50
3:50 PM Liverpool, Liverpool One0 changesdirect
meinfernbus_flixbusFlixBus · FlixBus10:10 AM London, Finchley Road ("Subway" restaurant)
6h55
5:05 PM Liverpool, Wavertree Shopping Centre1 change
national_expressNX54110:30 AM London, Victoria Coach Station
7h00
5:30 PM Liverpool, One Bus Station, Canning Place0 changesdirect
meinfernbus_flixbusFlixBus10:40 AM London, Finchley Road ("Subway" restaurant)
5h10
3:50 PM Liverpool, Liverpool One0 changesdirect
national_expressNX541 · NX17012:00 PM London, Victoria Coach Station
7h00
7:00 PM Liverpool, One Bus Station, Canning Place1 change
national_expressNX541 · NX17012:00 PM London, Victoria Coach Station
6h45
6:45 PM Liverpool, University1 change
national_expressNX541 · NX17012:00 PM London, Victoria Coach Station
6h39
6:39 PM Liverpool, Botanic Park1 change

This is the last bus of the day.

Find all the dates and times for this journey

Compare prices and tickets London to Liverpool by train or coach

Compare train and coach prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.

Tue
05 May
Wed
06 May
Thu
07 May
Fri
08 May
Sat
09 May
Sun
10 May
Mon
11 May
Tue
12 May
Wed
13 May
Thu
14 May
Fri
15 May
Sat
16 May
Sun
17 May
Mon
18 May
Tue
19 May
Wed
20 May
Thu
21 May
Fri
22 May
Sat
23 May
Sun
24 May
Mon
25 May

Why should you book London to Liverpool coaches with Omio?

National Express as well as FlixBus, Megabus, London Buses and more offer coaches services from London to Liverpool.
Omio is an official ticket reseller for all your travel options from London to Liverpool.

Why book with Omio vs National Express?

  • Compare with other providers: On Omio, you can not only buy tickets for National Express, but also compare tickets for the likes of FlixBus, Megabus or London Buses to find the best option for your trip from London to Liverpool.
  • Designed for International Travelers: Omio is in your language including 24/7 customer service and offers multiple payment options, including PayPal, credit cards, and bank transfer, in your preferred currency.
  • Compare all your options: Omio allows you to compare National Express with all available travel options, which are train and bus to ensure you get the best deal for traveling from London to Liverpool.

Why book with Omio over Wanderu or Trainline?

  • Compare with other providers: On Omio, you can also compare tickets for the likes of FlixBus, Megabus or London Buses to find the best option for your trip from London to Liverpool.
  • Multiple modes of transport: Omio allows you to compare travel options including train and bus to find the ideal travel option from London to Liverpool.

Journey information

Overview: Bus from London to Liverpool

United KingdomUnited Kingdom
United KingdomUnited Kingdom
Icon of bus

Buses from London to Liverpool run on average 48 times per day, taking around 4h 49m. Cheap bus tickets for this journey start at $10 if you book in advance.

There are 18 coaches per day. The earliest coach runs at 00:05, the last at 23:57. The fastest coach covers the 286 km distance in 4h 50m.

Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Distance
286 km
Average bus duration
4h 49m
Cheapest ticket price
$10
Buses per day
48
Direct buses
18
Fastest bus
4h 50m
First bus
12:05 AM
Last bus
11:57 PM
Cheapest Month
Oct
Cheapest Day
Sat
High Season
Oct - Dec
Low Season
Jan - Mar
Busiest Day
Tue
Least Busy Day
Sun
Best time to book
63 days
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information

Bus providers: National Express, FlixBus, Megabus, London Buses from London to LiverpoolYou can travel by bus between London to Liverpool with National Express, FlixBus, Megabus, London Buses for as low as $10. When you search for schedules and tickets, Omio will show you the best journey

FlixBus

About
FlixBus is one of Europe’s leading low-cost bus companies, founded in Germany and now offering long-distance services across Europe and the United States. In addition to its extensive daytime network, FlixBus also operates overnight buses on select European routes. Standard amenities include free Wi-Fi, power outlets to charge devices, extra legroom, luggage space, and onboard toilets, with snacks and drinks available for purchase. FlixBus offers a single Standard ticket type for all routes, which includes one carry-on bag and one checked bag per passenger. Additional fees apply for extra luggage and for reserving specific seats, such as Extra Seats, Table Seats, or Panorama Seats. This combination of affordability, comfort, and wide coverage makes FlixBus a popular choice for budget-conscious travelers.
Luggage & cancellation policy
Average Duration
4h 50m
Cheapest Price
$10
FlixBus frequency
2 a day
Luggage included
One carry-on bag up to 7kg (42x30x18 cm) and one checked bag up to 20kg (80x50x30 cm).
Additional luggage
Additional luggage can be purchased for a fee.
Cancellation Policy
You can cancel your ticket up to 15 minutes before departure and receive a voucher for future travel. Refund requests for delays over 120 minutes are possible.
Amenities on board the bus
Wifi
Food sold onboard
Seat reservation
Toilets
USB plugs
Accessibility
Assistance; Priority boarding; Wheelchair-accessible buses.
Bikes
Bikes are allowed for a fee; must be booked.
Pets
Small pets in carriers allowed; guide dogs travel for free.

National Express

About
National Express is the UK’s leading long-distance coach company, operating over 550 services per day and serving more than 900 destinations nationwide. It also runs frequent services to major UK airports — including Heathrow, Gatwick, Stansted, Luton, and Bristol — 24 hours a day. All National Express coaches are air-conditioned and offer free Wi-Fi and onboard entertainment. Most vehicles are equipped with seat belts and power outlets at every seat, allowing you to charge your phone or laptop during your journey. Ticket options include Restricted Fare, Standard Fare, and Fully Flexible Fare, with the latter providing maximum flexibility for cancellations or changes.
Luggage & cancellation policy
Average Duration
5h 45m
Cheapest Price
$14
Luggage included
Two medium-sized suitcases up to 20kg each and one small piece of hand luggage.
Additional luggage
10€ per additional bag.
Cancellation Policy
You can cancel your ticket up to 24 hours before departure for a refund minus a cancellation fee. Changes can be up to 24 hours before departure for a fee.
Amenities on board the bus
Wifi
Food sold onboard
Seat reservation
Toilets
USB plugs
Accessibility
Assistance; Priority seating; Accessible toilets.
Bikes
Folding Bikes are allowed; non-folding bikes are not allowed.

Megabus

About
Megabus is a low-cost intercity bus service operating across the United States, Canada, and the United Kingdom. Known for its affordable fares, including promotional $1 tickets, Megabus offers routes connecting over 500 cities and university campuses in North America. The company provides amenities such as air conditioning, power outlets, free Wi-Fi, and onboard restrooms, with many routes utilizing double-decker buses for scenic views. Megabus aims to provide safe, convenient, and affordable express bus travel.
Luggage & cancellation policy
Average Duration
7h 15m
Cheapest Price
$15
Megabus frequency
4 a day

London Buses

Luggage & cancellation policy
Average Duration
5h 59m
Cheapest Price
$47
London Buses frequency
1 a day

FAQs: London to Liverpool coach

Find answers to the most common questions about traveling from London to Liverpool by coach. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest coach, the cheapest option, or tips for making the most of your visit at Liverpool, this guide helps you travel smarter and with confidence.

FAQs
Cheap coach tickets from London to Liverpool can start from as little as $10 when you book in advance. The average coach ticket price for London to Liverpool is $23; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
The average journey time by coach from London to Liverpool is 4h 50m to travel the 286 km long trip. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.
The earliest coach from London to Liverpool leaves at 12:05 am. Plan your trip with the Journey Planner from Omio.
The latest coach from London to Liverpool leaves at 11:57 pm.
Yes, there are 18 direct coaches a day from London to Liverpool with National Express, FlixBus, Megabus. Schedules can vary on holidays or weekends with fewer direct coaches.
When taking a coach from London to Liverpool, you can count on National Express, FlixBus, Megabus, London Buses for the best way to get you to Liverpool. You can also check all possible coach companies who offer a service between London and Liverpool and compare the amenities they offer before buying a coach ticket.
When departing from London , you have various coach station options to start your trip from including London, Victoria Coach Station, London, Finchley Road ("Subway" restaurant), London, Baker Street Station, London, Heathrow Airport Terminals 2 & 3, London, Heathrow Airport Terminal 5, London, Heathrow Airport Terminal 4, London, York Road (London Eye), London, Gloucester Place (Baker Street Station), London, Eastbourne Terrace (Paddington Station), London, Bishopsgate (Liverpool Street Station - Stop G), London, Golders Green Station, London, Southwark Street / Blackfriars Road, London, Elephant and Castle, London, Shoreditch High St / Bethnal Green Road (Stop L), London, Tottenham Hale Bus Station, London, Lithos Road, London, Kingsland Road / Middleton Road, London, Lewisham, London, Stratford City Bus Station, London, New Cross Gate, London, Eltham, London, Marble Arch, London, Western Ave / Friary Road, London, Walworth, London, Greenford Roundabout, London, Wembley Stadium (First Way), London, St John's Wood, London, Hammersmith Bridge Road, London, Whitechapel Station Royal London Hospital (Stop B), Dartford, Bluewater Shopping Centre . When arriving in Liverpool , you can end your trip in coach stations like Liverpool, One Bus Station, Canning Place, Liverpool, Liverpool One, Liverpool, University, Liverpool, Botanic Park, Liverpool, Edge Lane Drive, Chester, Gorse Stacks (Bus Interchange), Liverpool, Wavertree Shopping Centre, Liverpool, Kwik Fit Old Swan, Birkenhead, Chester Street (Hamilton Square Station), Warrington, Winwick Street (Bus Interchange) .Passengers board the coach most frequently from London, Victoria Coach Station, which is located around 2 away from the city centre, and they get off the coach at Liverpool, One Bus Station, Canning Place, located 1 away from the city centre.
A trip to Liverpool from London is worth doing but not as a day trip with a journey time of 4h 50m each way. Check with Omio app the best way to travel.
The cheapest month for a coach from London to Liverpool is October.
It's helpful to compare your options as there are 2 ways to travel between London and Liverpool including taking a train and coach.
Yes, the following accessibility options are available when taking the coach from London to Liverpool:
  • National Express
    • Assistance
    • Priority seating
    • Accessible toilets.
  • FlixBus
    • Assistance
    • Priority boarding
    • Wheelchair-accessible buses.
Yes, there are bathrooms on board the coach from London to Liverpool for coach company FlixBus, National Express.
Whether you can cancel your coach ticket from London to Liverpool depends on the coach companies:
  • National Express
    • You can cancel your ticket up to 24 hours before departure for a refund minus a cancellation fee. Changes can be up to 24 hours before departure for a fee.
  • FlixBus
    • You can cancel your ticket up to 15 minutes before departure and receive a voucher for future travel. Refund requests for delays over 120 minutes are possible.
Yes, bikes are allowed on board the coach with coach company National Express, FlixBus.
Tickets are often cheaper when booked early. Traveling during off-peak hours or on weekdays can help you save money. Sort results by price to quickly identify the most affordable options. Check for promotions or discounts available on our website and app.
No, there is no food available to purchase on board the coach from London to Liverpool.
Yes, the following luggage options are included when booking a coach ticket from London to Liverpool:
  • National Express
    • Two medium-sized suitcases up to 20kg each and one small piece of hand luggage.
  • FlixBus
    • One carry-on bag up to 7kg (42x30x18 cm) and one checked bag up to 20kg (80x50x30 cm).
Yes, the following additional luggage options are available when booking a coach ticket from London to Liverpool:
  • National Express
    • 10€ per additional bag.
  • FlixBus
    • Additional luggage can be purchased for a fee.
Yes, you can bring your pet on the coach from London to Liverpool. The following conditions apply:
  • FlixBus
    • Small pets in carriers allowed
    • guide dogs travel for free.
You can reserve your seat on the coach from London to Liverpool with the following coach company: FlixBus, National Express
Yes, there are USB plugs on board the coach from London to Liverpool with the following coach company: FlixBus, National Express.
Yes, there is Wifi on board the coach from London to Liverpool with the following coach company: FlixBus, National Express.

popular bus stations

Important Stations and Airports in London and Liverpool

London
Liverpool
The major coach station for departures in London is London, Victoria Coach Station. Find all the information you need to know about services, amenities and connections at London, Victoria Coach Station for your trip from London to Liverpool.
London, Victoria Coach StationWifiParkingDiningATMTaxisAccessibilityWCTicket Office
Amenities at bus station
WifiWifi
ParkingParking
DiningDining
ATMATM
TaxisTaxis
AccessibilityAccessibility
WCWC
Ticket OfficeTicket Office
information
ticketOfficeHours
Ticket Office Hours
  • 06:00-23:00
ticketOfficeHours
Distance to city center
2 km
carConnection
Car connection
Buckingham Palace Road
Wifi
Wifi
  • Free Wi-Fi
Dining
Dining
  • Pret a Manger (in the station)
  • Starbucks (in the station).
Taxis
Taxis
  • Available outside the station on Buckingham Palace Road.
Accessibility
Accessibility
  • Elevators, ramps
WC
WC
  • Available in the station.
Public transport options for London, Victoria Coach Station
  • Bus: 11, 44, 170, 211, C1, C10 Metro: Victoria Train: Southern, Gatwick Express
London, Finchley Road ("Subway" restaurant)
information
London, Heathrow Airport Terminals 2 & 3WifiParkingDiningATMTaxisAccessibilityWCTicket Office
Amenities at bus station
WifiWifi
ParkingParking
DiningDining
ATMATM
TaxisTaxis
AccessibilityAccessibility
WCWC
Ticket OfficeTicket Office
information
ticketOfficeHours
Ticket Office Hours
  • 00:00-23:59
carConnection
Car connection
Bath Road
Wifi
Wifi
  • Free Wi-Fi
Dining
Dining
  • Pret a Manger (in the station)
  • Caffè Nero (in the station)
Taxis
Taxis
  • Available outside the arrivals area, with services provided by licensed black cabs and private hire vehicles.
Accessibility
Accessibility
  • Ramps, assistance
WC
WC
  • Available in the station.
Public transport options for London, Heathrow Airport Terminals 2 & 3
  • Bus: 105, 111, 140, 285, 423 Train: Heathrow Express Metro: Piccadilly

More options for your journey from London to Liverpool

Here are some other resources that might have the information you need

HomeCoachesBuses in United KingdomLondon to Liverpool bus

The Omio App Makes Travel Planning Easy

We’ll get you where you want to go. From live train updates to mobile tickets, our innovative app is the ideal way to plan and keep track of your travel.

ios-badge
android-badge
Hand With Phone