Oslo Airport
Gardermoen runs a single terminal building — Avinor’s own map page calls it “the terminal”, not “terminals”. The 2017 expansion (NOK 14 billion, construction from 2011) “almost doubled” its size and pushed capacity to 32 million passengers a year, after the airport had already passed 25 million in 2016.
Self-service bag drop takes checked bags up to 20 kg; anything heavier goes to a staffed counter. Kiosks near check-in print boarding passes and bag tags.
The security checkpoint (and bag drop) closes after the last evening departure and reopens around 04:00.
Domestic transfer — arriving from abroad and continuing within Norway without collecting luggage — runs 07:00–23:00 daily through a dedicated yellow area next to gate D2, and only for through-ticketed passengers on Air Baltic, Air France, Atlantic Airways, Emirates, LOT, Norwegian, SAS, TAP, KLM or Widerøe.
Book assistance at least 48 hours ahead. Without a pre-booking you may wait up to 30 minutes for help; with reduced-mobility needs, arrive 2 hours before a domestic/Schengen flight or 2.5 hours before one outside Schengen.