Stockholm to Gävle train with SJ

SJ is a Swedish train company that offers a wide range of services to its passengers. It operates high-speed trains, regional trains, and night trains, all of which are comfortable and reliable. The high-speed trains, X2000, are the fastest way to travel between cities, while the regional trains, Pågatåg, are perfect for shorter trips. The night trains, SJ Nattåg, offer a comfortable way to travel overnight. SJ offers a variety of ticket types, including single tickets, return tickets, and SJ Prio tickets, which offer discounts for frequent travelers. Onboard facilities include free Wi-Fi, power outlets, and a café car. The most popular routes for SJ are between Stockholm and Gothenburg, Stockholm and Malmö, and Stockholm and Uppsala.

Mälartåg is a Swedish train company from the Mälardalen region operating in the Stockholm, Sörmland, Uppsala, Västmanland, Örebro and Östergötland. Mälartåg's train fleet consists of double-deckers and smaller regional trains with a maximum speed of 200 km/h.

Vy, formerly known as Norwegian State Railways (NSB), is a government-owned railway company that operates most passenger train services in Norway, as well as many bus services in Norway and Sweden. Vy offers intercity, regional, and commuter train services, connecting major Norwegian cities like Oslo, Bergen, and Trondheim, and also provides an international route between Oslo and Gothenburg, Sweden. Vy's train fleet includes electric multiple units like the Class 69, 72, 74, and 75 for commuter and regional services, and traditional locomotive-hauled trains for some intercity routes. Passengers can choose from various ticket types, including Single, Season, Lowfare, and Flex, with options for different comfort levels such as Plus, PlusNight lie-flat seats, and Sleeper compartments for overnight travel. Many trains offer amenities like free Wi-Fi, power outlets, and dining cars.

SL (Storstockholms Lokaltrafik) is the public transport authority responsible for buses, underground trains, commuter trains, trams, and certain ferry lines in Greater Stockholm, Sweden. SL's network uses a unified ticketing system, and the organization contracts with various companies for the operation and maintenance of its services. SL also offers commuter rail connections to Arlanda Airport and tram services to Bromma Airport.

UL (Kollektivtrafikförvaltningen UL) is the public transport authority responsible for buses and trains in Uppsala County, Sweden. They operate green city buses in Uppsala in cooperation with Gamla Uppsala Buss, and yellow regional buses that cover most of the county, with Uppsala Central Station as a major hub. UL also has collaborations with other public transport operators like Mälartåg and SL Commuter Trains. Passengers can purchase tickets through various methods, and UL buses offer amenities such as restrooms, air-conditioning, and space for hand luggage.