Flight-tied hours: 1.5 h before first departure until 30 min after last arrival — not 24/7.

Swedavia’s About and Contact pages open the terminal 1.5 hours before the first departure and close it 30 minutes after the last arrival. For a typical domestic Arlanda bank, arriving ~60–90 minutes before STD is enough in normal conditions; add buffer for the day’s first wave, bag drop, winter weather, or ski-week peaks. Ultra-early “just show up” fails if you beat the door.

Single terminal; navigation is trivial — airport mix-ups with UME / LLA / SDL are the costly error.

Check-in, security, and the gate holdroom share one compact Swedavia terminal on Frösön. There is no pier train and no terminal transfer. Confusing OSD with UME (Umeå), LLA (Luleå), SDL (Sundsvall-Timrå), or ARN on a multi-city Norrland/ski itinerary is the failure mode — those are separate ground trips measured in hours, not gates.

Swedavia POI directories show zero named F&B/retail outlets; plan food before the airport.

Swedavia’s English Food & beverages and Shopping filters for Åre Östersund currently list no named restaurants or stores (“No results for All restaurants / All stores”). That can change, but as of research day you should treat café service as unverified: eat in Östersund/Åre, pack snacks, or confirm on the day what is actually open after security. The Shopping page still publishes generic EU duty-free purchase rules — not a shop name.

Line 4 ~30 min to Östersund; taxi at curb; ski-season Flygtaxi toward Åre/Vemdalen.

Länstrafiken Jämtland line 4 stops outside the terminal and takes about 30 minutes to Östersund centre on a schedule (not flight-tied). Tickets via the Länstrafiken Jämtland app or card on board. Taxi rank is immediately outside. For Åre or Vemdalen in ski season, Swedavia’s bus/taxi pages point to pre-booked Flygtaxi transfers rather than inventing a public coach. Car hire is offered via Swedavia’s Auto Europe comparison widget — verify which desks are actually staffed for your arrival.