Find Cheap Flights from Seattle/Tacoma Intl to Washington (SEA - WAS)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Seattle/Tacoma Intl to Washington

(Round-trip)
Depart: Tue Sep 26 2017 Return: Mon Oct 2 2017 Trip spans 7 days
Frontier
Frontier
SEA
12:00a
IAD
7:11a
7h 11m
1 stop
IAD
12:00a
SEA
6:17p
18h 17m
1 stop
Depart: Tue Sep 26 2017 Return: Thu Oct 26 2017 Trip spans 31 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
IAD
7:11a
7h 11m
1 stop
IAD
12:00a
SEA
9:52a
9h 52m
1 stop
Depart: Mon Nov 20 2017 Return: Tue Nov 28 2017 Trip spans 9 days
Sun Country Air
Sun Country Air
SEA
12:00a
DCA
7:10a
7h 10m
1 stop
DCA
12:00a
SEA
4:55p
16h 55m
1 stop
Depart: Tue Oct 10 2017 Return: Wed Oct 11 2017 Trip spans 2 days
United
United
SEA
12:00a
IAD
4:51a
4h 51m
nonstop
IAD
12:00a
SEA
5:42a
5h 42m
nonstop
Depart: Sat Oct 28 2017 Return: Tue Oct 31 2017 Trip spans 4 days
American Airlines
American Airlines
SEA
12:00a
DCA
7:14a
7h 14m
1 stop
DCA
12:00a
SEA
9:37a
9h 37m
1 stop
Depart: Fri Mar 2 2018 Return: Mon Apr 2 2018 Trip spans 31 days
Alaska Airlines
Alaska Airlines
SEA
12:00a
IAD
6:46a
30h 46m
1 stop
IAD
12:00a
SEA
5:55a
5h 55m
nonstop
Depart: Thu Sep 28 2017 Return: Mon Oct 2 2017 Trip spans 5 days
Frontier
Frontier
SEA
12:00a
IAD
3:31p
15h 31m
1 stop
IAD
12:00a
SEA
6:17p
18h 17m
1 stop
Depart: Sat Oct 7 2017 Return: Mon Oct 16 2017 Trip spans 10 days
Frontier
Frontier
SEA
12:00a
IAD
8:42a
8h 42m
1 stop
IAD
12:00a
SEA
7:57p
19h 57m
1 stop
Depart: Fri Oct 13 2017 Return: Mon Oct 16 2017 Trip spans 4 days
Frontier
Frontier
SEA
12:00a
IAD
8:42a
8h 42m
1 stop
IAD
12:00a
SEA
7:57p
19h 57m
1 stop
Depart: Wed Sep 27 2017 Return: Mon Oct 2 2017 Trip spans 6 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
DCA
10:34p
22h 34m
1 stop
DCA
12:00a
SEA
4:50p
16h 50m
1 stop
Depart: Wed Nov 1 2017 Return: Wed Nov 8 2017 Trip spans 8 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
IAD
5:15a
5h 15m
nonstop
IAD
12:00a
SEA
5:53a
5h 53m
nonstop
Depart: Fri Jan 12 2018 Return: Mon Jan 15 2018 Trip spans 4 days
American Airlines
American Airlines
SEA
12:00a
IAD
7:20a
7h 20m
1 stop
IAD
12:00a
SEA
7:36a
7h 36m
1 stop
Depart: Tue Sep 26 2017 Return: Mon Oct 2 2017 Trip spans 7 days
Frontier
Frontier
SEA
12:00a
DCA
2:14p
14h 14m
1 stop
DCA
12:00a
SEA
7:02p
19h 02m
1 stop
Depart: Wed Jan 3 2018 Return: Thu Jan 4 2018 Trip spans 2 days
United
United
SEA
12:00a
IAD
4:49a
4h 49m
nonstop
IAD
12:00a
SEA
5:49a
5h 49m
nonstop
Depart: Sun Nov 19 2017 Return: Wed Nov 29 2017 Trip spans 11 days
Virgin America
Virgin America
SEA
12:00a
IAD
7:54a
7h 54m
1 stop
IAD
12:00a
SEA
11:39a
11h 39m
1 stop
Depart: Wed Nov 15 2017 Return: Tue Nov 28 2017 Trip spans 14 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
DCA
9:12a
9h 12m
1 stop
DCA
12:00a
SEA
4:55p
16h 55m
1 stop
Depart: Wed Feb 7 2018 Return: Sun Feb 11 2018 Trip spans 5 days
American Airlines
American Airlines
SEA
12:00a
IAD
7:40a
7h 40m
1 stop
IAD
12:00a
SEA
8:40a
8h 40m
1 stop
Depart: Thu Dec 7 2017 Return: Mon Dec 11 2017 Trip spans 5 days
United
United
SEA
12:00a
IAD
5:02a
5h 02m
nonstop
IAD
12:00a
SEA
5:53a
5h 53m
nonstop
Depart: Thu Sep 28 2017 Return: Sun Oct 1 2017 Trip spans 4 days
Frontier
Frontier
SEA
12:00a
IAD
3:31p
15h 31m
1 stop
IAD
12:00a
SEA
6:17p
18h 17m
1 stop
Depart: Sat Oct 28 2017 Return: Mon Oct 30 2017 Trip spans 3 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
DCA
7:37a
7h 37m
1 stop
DCA
12:00a
SEA
4:50p
16h 50m
1 stop
Direct flights SEA to WAS on United
Flight # Depart SEA Arrive IAD Sun Mon Tue Wed Thu Fri Sat Valid Between
419 7:35 am 3:47 pm Oct 1 - Oct 1
419 7:35 am 3:47 pm Sep 29 - Oct 4
419 7:35 am 3:47 pm Sep 28 - Sep 28
419 7:35 am 3:47 pm Sep 23 - Sep 30
419 7:35 am 3:47 pm Sep 12 - Sep 27
419 7:45 am 3:57 pm Oct 8 - Oct 15
419 7:45 am 3:55 pm Oct 7 - Oct 14
419 7:45 am 3:55 pm Oct 28 - Oct 28
419 7:45 am 3:57 pm Oct 22 - Oct 22
419 7:45 am 3:55 pm Oct 21 - Oct 21
419 7:53 am 4:05 pm Oct 9 - Oct 9
419 7:53 am 4:05 pm Oct 5 - Oct 11
419 7:53 am 4:04 pm Oct 27 - Oct 27
419 7:53 am 4:05 pm Oct 26 - Oct 26
419 7:53 am 4:05 pm Oct 25 - Oct 25
419 7:53 am 4:04 pm Oct 19 - Oct 20
419 7:53 am 4:04 pm Oct 17 - Oct 24
419 7:53 am 4:05 pm Oct 16 - Oct 23
419 7:53 am 4:04 pm Oct 12 - Oct 12
419 7:53 am 4:04 pm Oct 10 - Oct 13
260 12:45 pm 8:46 pm Sep 12 - Oct 3
260 12:45 pm 8:46 pm Sep 23 - Sep 30
260 12:45 pm 8:46 pm Sep 27 - Oct 4
260 12:45 pm 8:46 pm Sep 28 - Sep 28
260 12:45 pm 8:46 pm Oct 1 - Oct 1
260 12:45 pm 8:46 pm Oct 2 - Oct 2
260 12:50 pm 8:51 pm Oct 5 - Oct 6
260 12:55 pm 8:56 pm Oct 8 - Oct 8
260 12:55 pm 8:56 pm Oct 7 - Oct 7
260 12:55 pm 8:56 pm Oct 9 - Oct 27
260 12:55 pm 8:56 pm Oct 10 - Oct 24
260 12:55 pm 8:56 pm Oct 14 - Oct 14
260 12:55 pm 8:56 pm Oct 15 - Oct 22
260 12:55 pm 8:56 pm Oct 21 - Oct 28
1013 10:30 pm 6:21 am Sep 10 - Oct 1
1178 10:30 pm 6:21 am Sep 11 - Sep 27
1178 10:30 pm 6:21 am Oct 2 - Oct 4
2067 10:30 pm 6:21 am Sep 29 - Sep 29
2067 10:30 pm 6:21 am Oct 8 - Oct 27
262 10:50 pm 6:41 am Oct 6 - Oct 6
262 10:50 pm 6:41 am Oct 5 - Oct 5
262 11:30 pm 7:21 am Sep 28 - Sep 28
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

^ The fares displayed in KAYAK ads found on other sites include all taxes and fees for economy class travel and were found by KAYAK users in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.
Airports
Origin

Seattle
$238
Destination

Washington
only $238
only $258
Airlines Airline reviews

89 travelers who booked a flight from Seattle to Washington rated their chosen airlines with an average of 7.3.

Overall
7.7
Boarding
8.0
Crew
8.0
Comfort
7.0
Food
6.4
Entertainment
6.6