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
Spirit Airlines
Spirit Airlines
09 Jan
2:40 am
BWI
Baltimore/Washington airport
11h 47m
1 Stop
SEA
11:27 am
Seattle/Tacoma Intl airport
Spirit Airlines
13 Jan
9:20 am
SEA
Seattle/Tacoma Intl airport
11h 03m
1 Stop
BWI
11:23 pm
Baltimore/Washington airport
178 USD
United Airlines
United Airlines
08 Jan
3:30 am
IAD
Washington Dulles Intl airport
6h 05m
SEA
6:35 am
Seattle/Tacoma Intl airport
United Airlines
14 Jan
12:15 am
SEA
Seattle/Tacoma Intl airport
4h 53m
IAD
8:08 am
Washington Dulles Intl airport
217 USD
Alaska Airlines
Alaska Airlines
22 Jan
12:25 pm
IAD
Washington Dulles Intl airport
6h 00m
SEA
3:25 pm
Seattle/Tacoma Intl airport
Alaska Airlines
28 Jan
12:25 am
SEA
Seattle/Tacoma Intl airport
4h 55m
IAD
8:20 am
Washington Dulles Intl airport
217 USD
Alaska Airlines
Alaska Airlines
22 Jan
12:25 pm
IAD
Washington Dulles Intl airport
6h 00m
SEA
3:25 pm
Seattle/Tacoma Intl airport
Alaska Airlines
28 Jan
12:25 am
SEA
Seattle/Tacoma Intl airport
4h 55m
IAD
8:20 am
Washington Dulles Intl airport
217 USD
United Airlines
United Airlines
08 Jan
3:30 am
IAD
Washington Dulles Intl airport
6h 05m
SEA
6:35 am
Seattle/Tacoma Intl airport
United Airlines
14 Jan
12:15 am
SEA
Seattle/Tacoma Intl airport
4h 53m
IAD
8:08 am
Washington Dulles Intl airport
217 USD
Delta
Delta
29 Jan
12:00 pm
IAD
Washington Dulles Intl airport
6h 09m
SEA
3:09 pm
Seattle/Tacoma Intl airport
Delta
12 Feb
11:59 pm
SEA
Seattle/Tacoma Intl airport
4h 57m
IAD
7:56 am
+1
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 35% more expensive in the afternoon than in the evening
What is the cheapest airline that flies to Seattle?
Frontier
Frontier, JetBlue, and Sun Country Air 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?
43 days before
The cheapest time to buy a flight from Washington to Seattle is approximately 43 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 55m The fastest flight from Washington to Seattle takes 5h 55m.
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
Philadelphia to Portland
Fastest flight time
5h 50m
Cheapest price
197 USD
Philadelphia to Seattle
Fastest flight time
6h 03m
Cheapest price
208 USD
Washington to Portland
Fastest flight time
5h 55m
Cheapest price
220 USD
Baltimore to Portland
Fastest flight time
5h 45m
Cheapest price
220 USD
View more

Flights from Washington to:

*Flight prices to Seattle are based on prices for economy tickets found by momondo users during searches within the last 72 hours. These prices may no longer be available.