Cheap flights from Washington to Seattle

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Easily compare round-trip flights from Washington to Seattle

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Washington to Seattle by changing tabs
Quickest
Cheapest
Frontier
Frontier
13 Nov
IAD
6:49 pm
Washington Dulles Intl airport
13h 51m
1 Stop
5:40 am
+1
SEA
Seattle/Tacoma Intl airport
Frontier
20 Nov
SEA
5:00 am
Seattle/Tacoma Intl airport
4h 45m
12:45 pm
IAD
Washington Dulles Intl airport
178 USD
Frontier
Frontier
13 Nov
IAD
6:49 pm
Washington Dulles Intl airport
13h 51m
1 Stop
5:40 am
+1
SEA
Seattle/Tacoma Intl airport
Frontier
20 Nov
SEA
5:00 am
Seattle/Tacoma Intl airport
4h 45m
12:45 pm
IAD
Washington Dulles Intl airport
178 USD
Frontier
Frontier
13 Nov
IAD
6:49 pm
Washington Dulles Intl airport
13h 51m
1 Stop
5:40 am
+1
SEA
Seattle/Tacoma Intl airport
Frontier
15 Nov
SEA
12:00 am
Seattle/Tacoma Intl airport
4h 54m
7:54 am
IAD
Washington Dulles Intl airport
198 USD
United Airlines
United Airlines
12 Nov
IAD
12:35 pm
Washington Dulles Intl airport
5h 55m
3:30 pm
SEA
Seattle/Tacoma Intl airport
United Airlines
20 Nov
SEA
5:00 am
Seattle/Tacoma Intl airport
4h 45m
12:45 pm
IAD
Washington Dulles Intl airport
217 USD
Delta
Delta
07 Jan
IAD
12:00 pm
Washington Dulles Intl airport
6h 09m
3:09 pm
SEA
Seattle/Tacoma Intl airport
Delta
14 Jan
SEA
11:59 pm
Seattle/Tacoma Intl airport
4h 57m
7:56 am
+1
IAD
Washington Dulles Intl airport
217 USD
Delta
Delta
07 Jan
IAD
12:00 pm
Washington Dulles Intl airport
6h 09m
3:09 pm
SEA
Seattle/Tacoma Intl airport
Delta
14 Jan
SEA
11:59 pm
Seattle/Tacoma Intl airport
4h 57m
7:56 am
+1
IAD
Washington Dulles Intl airport
217 USD

How to get the cheapest flight ticket from Washington to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Seattle?
January
The cheapest time of year to fly to Seattle from Washington is January. Most expensive is December
What is the cheapest day to fly to Seattle?
Wednesday
The cheapest day of the week is typically Wednesday. The most expensive is typically Sunday
When is the cheapest time to fly to Seattle?
in the evening
Washington to Seattle flights are approximately 37% more expensive in the afternoon than in the evening
What is the cheapest airline that flies to Seattle?
Frontier
Frontier, Sun Country Air, and JetBlue are the most popular carriers operating from Washington to Seattle
What is the cheapest route?
Washington Reagan-National - Seattle/Tacoma Intl
Fly from Washington Reagan-National to Seattle/Tacoma Intl for the best Washington - Seattle flight prices
When is the cheapest time to book a flight to Seattle?
28 days before
The cheapest time to buy a flight from Washington to Seattle is approximately 28 days to departure
60
Days before departure
0

Flight information for Washington to Seattle (03A - WAS)

Find info about flight duration, direct flights, and airports for your flight from Washington to Seattle
Fastest flight time 5h 40m The fastest flight from Washington to Seattle takes 5h 40m.
Direct flights Every day Direct flights go from Washington to Seattle every day.
Airports in Seattle 3 airports There are 3 airports near Seattle: Seattle King County/Boeing (BFI), Seattle Lake Union Spb (LKE), Seattle/Tacoma Intl (SEA)

Alternative routes for Washington to Seattle

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Baltimore to Portland
Fastest flight time
7h 27m
Cheapest price
127 USD
Philadelphia to Seattle
Fastest flight time
6h 00m
Cheapest price
211 USD
Philadelphia to Portland
Fastest flight time
7h 33m
Cheapest price
226 USD
Washington to Portland
Fastest flight time
5h 55m
Cheapest price
256 USD
View more

Flights from Washington to: