Washington Dulles International Airport
Dulles · US
IAD See airport pageCheap Flights from Dulles (IAD) to Seattle (SEA)
Track fares, compare route details, and get alerted when prices from Dulles to Seattle drop again.
Typical travel time: 4h 54m
Route pattern: Usually direct
We currently track this route between Dulles (IAD) and Seattle (SEA).
This trip covers about 3,702 km and usually takes around 4h 54m.
We are still collecting live fare checks for this route. Start a free alert and we will email you as soon as prices appear.
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What we know about this route
126 · IAD
What we know about this route
Route distance
3,702 km
Typical travel time
4h 54m
Route pattern
Usually direct
Last checked
—
Popular airlines on this route
UA
Recent fares we tracked
Recent fares we tracked
No live fares tracked yet
We are still collecting live fare checks for this route. Start a free alert and we will email you as soon as prices appear.
Airport information
Airport information
Seattle–Tacoma International Airport
Seattle · US
SEA See airport page
Frequently Asked Questions
Frequently Asked Questions
How long does the trip from Dulles to Seattle usually take?
This route typically takes around 4h 54m.
How far is Dulles to Seattle by air?
The air distance between Dulles and Seattle is about 3,702 km.
Are there direct flights from Dulles to Seattle?
This route is usually flown direct.
Which airport do you leave from when flying from Dulles to Seattle?
Flights on this route usually depart from Washington Dulles International Airport (IAD).
Which airport do you arrive at when flying from Dulles to Seattle?
Flights on this route usually arrive at Seattle–Tacoma International Airport (SEA).
Which airlines have appeared on this route?
Airlines we have seen on this route include UA.
How do alerts work for Dulles to Seattle?
Create a free alert and we will email you when we detect a cheaper fare for this route.
Can I book directly with the airline?
Yes. We surface the route insights here, and when a good fare appears you book directly with the airline or travel provider.