Seattle (SEA) to Anchorage (ANC): 1,445 miles (2,326 km) great-circle, about 3h 25m nonstop by our estimate. Cheapest fare observed: $715 round-trip on Alaska Airlines, nonstop, departing April 28, 2026.
$715 round-trip, Alaska Airlines AS413, departing 2026-04-28 at 22:57, returning 2026-05-10. The recorded itinerary left on a Tuesday, returning on a Sunday 12 nights later; the fare was observed 3 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $715, it ranked 16th of the 30 round-trip fares we recorded from SEA (median $591). That is 49.5 cents per great-circle mile (round-trip price over one-way distance), above the SEA median of 19.2 cents across 30 round-trip routes.
Routes from SEA of similar length: El Paso (1,368 mi) at $467 and Dallas (1,658 mi) at $200.
Alaska Airlines had the cheapest fare on 6 of 30 SEA routes. It is the 22nd longest of the 30 routes we track from SEA.
Of 3 departure airports with a fare to Anchorage, Seattle (SEA) ranked 3rd at $715. Lowest: $538 from Portland (PDX); highest: $715 from Seattle (SEA); 1 nonstop. Cheapest-fare airlines (routes): Alaska Airlines (3).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, America/Anchorage; flight time is our estimate.