IADSEA
Washington (Washington Dulles International Airport) to Seattle (Seattle-Tacoma International Airport).
Plan this routeAt a glance
| Est. flight time | Distance | Frequency | Type |
|---|---|---|---|
| ~5h 20m Estimated from great-circle distance — no tracked flights yet. | 2,300 mi | 6-7/day | Domestic |
Airlines on this route
Airlines flying IAD to SEA
Scheduled service data shows 6-7/day from IAD to SEA across 4 airlines.
- First departure
- 06:00
- Last departure
- 19:28
- Cadence
- ~every 2 hours
- Daily departures
- 10
| Airline | Daily frequency | Aircraft | Departures (local) |
|---|---|---|---|
| Alaska Airlines | 3/day | Boeing 737 · Seat map | 06:0006:0309:00 |
Aircraft on this route
Flying the other way?
SEA to IAD flights — 6-7/day on 3 airlines →Route FAQ
How long is the flight from IAD to SEA?
The IAD to SEA flight is typically scheduled at about 5h 20m.
How far is IAD from SEA?
IAD to SEA is about 2,300 miles by air.
Which airlines fly from IAD to SEA?
Alaska Airlines, United Airlines, Delta Air Lines, Icelandair fly the IAD to SEA route in our route data.
What aircraft fly from IAD to SEA?
Aircraft observed or commonly scheduled on IAD to SEA include Airbus A220, Boeing 737, Boeing 757.