AS1 distance and great-circle path
AS1 covers 2,326 km, or 1,445 miles. That makes it a medium-haul flight, long enough for a full meal service, short enough for narrowbodies. Of the 439 routes we track, it ranks 301 by distance.
The plane leaves Seattle heading north-west. On the map above, the line looks curved. That is normal. The shortest path over a round planet never looks straight on a flat screen. Our guide explains how the SEA-ANC route appears on a tracker map.
Why AS1 block time differs from cruise time
The schedule allows 3.8 hours from gate to gate. That works out to about 620 km/h. A Boeing 737-900ER cruises faster than that. The gap is taxi time, climbing, descending and holding.
Winds aloft shift the real flight time by up to an hour in either direction. See why long flights take odd-looking routes.
Can the Boeing 737-900ER comfortably fly AS1?
Not at all. At roughly 43% of its range, this is an easy trip for a Boeing 737-900ER. The airline picked it for cabin size, not distance. The full numbers are on our aircraft page for the Boeing 737-900ER.
What to know about AS1
- Time change: you land 1 hour behind the time you left.
- Flies far north: the real path runs much closer to the pole than a flat map suggests.