$130 Cheap American Airlines flights Seattle (SEA) to Washington (IAD)

View $130 flight on Tue, Feb 10, 2026Opens in a new window

$130 Cheap American Airlines flights Seattle (SEA) to Washington (IAD)

Prices were available within the past 7 days and start at $130 for one-way flights and $319 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Feb 10 - Tue, Feb 17
SEA
Seattle
IAD
Washington
$319 Roundtrip, found 1 day ago
$319
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Feb 10 from Seattle to Washington, returning Tue, Feb 17, priced at $319 found 1 day ago
American Airlines
Tue, Feb 10 - Tue, Feb 17
SEA
Seattle
IAD
Washington
$323 Roundtrip, found 1 day ago
$323
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Feb 10 from Seattle to Washington, returning Tue, Feb 17, priced at $323 found 1 day ago

Find the cheapest month to fly from Seattle (SEA) to Washington (IAD)

February is typically the cheapest month to fly

From $159 - $296 per traveler.
Flights from Seattle (SEA) to Washington (IAD)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Popular airline
American Airlines
Distance
3679 km
Average flight time
7 hours 57 mins