Find Deals on Flights from Washington Dulles Intl to Seattle/Tacoma Intl (IAD - SEA)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
Students
under 26
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Washington Dulles Intl to Seattle/Tacoma Intl

(Round-trip)
Depart: Tue Nov 1 2016 Return: Wed Nov 2 2016 Trip spans 2 days
Major Airline
Major Airline
IAD
1:00a
SEA
12:35p
11h 35m
1 stop
SEA
1:55a
IAD
11:45a
9h 50m
1 stop
Depart: Tue Oct 18 2016 Return: Wed Oct 19 2016 Trip spans 2 days
Frontier
Frontier
IAD
2:55a
SEA
3:12p
12h 17m
1 stop
SEA
7:25a
IAD
10:17p
14h 52m
1 stop
Depart: Wed Nov 2 2016 Return: Tue Nov 8 2016 Trip spans 7 days
JetBlue
JetBlue
IAD
6:00a
SEA
10:59p
16h 59m
1 stop
SEA
4:00p
IAD
1:24a
9h 24m
1 stop
Depart: Tue Nov 8 2016 Return: Tue Nov 15 2016 Trip spans 8 days
American Airlines
American Airlines
IAD
12:07a
SEA
10:36a
10h 29m
1 stop
SEA
8:39a
IAD
3:45p
7h 06m
1 stop
Depart: Sat Nov 19 2016 Return: Wed Nov 30 2016 Trip spans 12 days
Alaska Airlines
Alaska Airlines
IAD
2:00p
SEA
8:00p
6h 00m
nonstop
SEA
5:00a
IAD
9:52a
4h 52m
nonstop
Depart: Sun Nov 6 2016 Return: Tue Nov 8 2016 Trip spans 3 days
Virgin America
Virgin America
IAD
4:00a
SEA
8:15a
28h 15m
1 stop
SEA
2:05a
IAD
11:35p
21h 30m
1 stop
Depart: Sun Nov 20 2016 Return: Sat Dec 3 2016 Trip spans 14 days
Delta
Delta
IAD
8:01a
SEA
3:19p
7h 18m
1 stop
SEA
4:35a
IAD
1:28p
8h 53m
1 stop
Depart: Fri Nov 18 2016 Return: Tue Nov 29 2016 Trip spans 12 days
United
United
IAD
10:40a
SEA
4:33p
5h 53m
nonstop
SEA
2:52a
IAD
7:52a
5h 00m
nonstop
Depart: Fri Jan 20 2017 Return: Wed Jan 25 2017 Trip spans 6 days
Major Airline
Major Airline
IAD
11:50p
SEA
11:55a
12h 05m
1 stop
SEA
12:45a
IAD
5:40p
16h 55m
1 stop
Depart: Sat Jan 21 2017 Return: Sat Jan 28 2017 Trip spans 8 days
Major Airline
Major Airline
IAD
5:30a
SEA
3:23p
9h 53m
1 stop
SEA
11:19a
IAD
8:06p
8h 47m
1 stop
Depart: Tue Jan 31 2017 Return: Fri Feb 10 2017 Trip spans 11 days
Major Airline
Major Airline
IAD
11:50p
SEA
9:30a
9h 40m
1 stop
SEA
9:00p
IAD
9:10a
12h 10m
1 stop
Depart: Wed Oct 12 2016 Return: Thu Oct 13 2016 Trip spans 2 days
Frontier
Frontier
IAD
2:55a
SEA
3:12p
12h 17m
1 stop
SEA
1:10p
IAD
10:17p
9h 07m
1 stop
Depart: Sat Oct 29 2016 Return: Mon Oct 31 2016 Trip spans 3 days
JetBlue
JetBlue
IAD
2:35a
SEA
9:24p
18h 49m
1 stop
SEA
5:00p
IAD
2:24a
9h 24m
1 stop
Depart: Sat Dec 3 2016 Return: Tue Dec 6 2016 Trip spans 4 days
American Airlines
American Airlines
IAD
11:03a
SEA
7:04p
8h 01m
1 stop
SEA
5:35p
IAD
2:16a
8h 41m
1 stop
Depart: Sat Oct 22 2016 Return: Fri Oct 28 2016 Trip spans 7 days
Frontier
Frontier
IAD
2:55a
SEA
3:12p
12h 17m
1 stop
SEA
1:10p
IAD
10:17p
9h 07m
1 stop
Depart: Wed Oct 26 2016 Return: Tue Nov 1 2016 Trip spans 7 days
Major Airline
Major Airline
IAD
1:00a
SEA
12:35p
11h 35m
1 stop
SEA
10:25a
IAD
5:20a
18h 55m
1 stop
Depart: Mon Dec 5 2016 Return: Wed Dec 7 2016 Trip spans 3 days
JetBlue
JetBlue
IAD
5:00a
SEA
9:59p
16h 59m
1 stop
SEA
4:00p
IAD
10:16a
18h 16m
1 stop
Depart: Sat Jan 14 2017 Return: Sat Jan 21 2017 Trip spans 8 days
American Airlines
American Airlines
IAD
11:15a
SEA
6:51p
7h 36m
1 stop
SEA
8:05a
IAD
3:25p
7h 20m
1 stop
Depart: Mon Nov 21 2016 Return: Tue Nov 29 2016 Trip spans 9 days
United
United
IAD
10:50a
SEA
4:41p
5h 51m
nonstop
SEA
5:30p
IAD
10:20p
4h 50m
nonstop
Depart: Wed Nov 23 2016 Return: Wed Nov 30 2016 Trip spans 8 days
Alaska Airlines
Alaska Airlines
IAD
2:00p
SEA
8:00p
6h 00m
nonstop
SEA
5:00a
IAD
9:52a
4h 52m
nonstop
Direct flights IAD to SEA on United
Flight # Depart IAD Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
389 8:45 am 11:39 am Oct 30 - Nov 1
389 8:45 am 11:39 am Nov 4 - Nov 4
389 8:45 am 11:39 am Oct 31 - Nov 3
389 8:45 am 11:39 am Nov 2 - Nov 2
389 8:45 am 11:39 am Nov 7 - Nov 17
389 8:45 am 11:39 am Nov 6 - Nov 13
389 8:55 am 11:37 am Oct 28 - Oct 28
389 8:55 am 11:37 am Oct 21 - Oct 23
389 8:55 am 11:37 am Oct 20 - Oct 27
389 8:55 am 11:37 am Oct 16 - Oct 16
389 8:55 am 11:37 am Oct 13 - Oct 13
389 8:55 am 11:37 am Oct 9 - Oct 9
389 8:55 am 11:37 am Oct 8 - Oct 29
389 8:55 am 11:37 am Oct 7 - Oct 19
357 3:40 pm 6:33 pm Nov 1 - Nov 4
357 3:40 pm 6:33 pm Nov 7 - Nov 18
357 3:40 pm 6:33 pm Oct 31 - Oct 31
1603 3:45 pm 6:20 pm Oct 27 - Oct 28
1603 3:45 pm 6:20 pm Oct 19 - Oct 24
1603 3:45 pm 6:20 pm Oct 10 - Oct 18
1603 3:45 pm 6:20 pm Oct 25 - Oct 25
1603 3:45 pm 6:20 pm Oct 6 - Oct 7
1603 3:50 pm 6:22 pm Oct 23 - Oct 26
1603 3:50 pm 6:22 pm Oct 9 - Oct 9
1603 3:50 pm 6:22 pm Oct 12 - Oct 12
326 6:20 pm 9:17 pm Nov 5 - Nov 5
326 6:20 pm 9:17 pm Nov 1 - Nov 1
326 6:20 pm 9:17 pm Oct 30 - Nov 4
326 6:20 pm 9:09 pm Oct 27 - Oct 27
326 6:20 pm 9:09 pm Oct 26 - Oct 28
326 6:20 pm 9:09 pm Oct 25 - Oct 25
326 6:20 pm 9:09 pm Oct 22 - Oct 22
326 6:20 pm 9:09 pm Oct 6 - Oct 14
326 6:20 pm 9:09 pm Oct 8 - Oct 15
326 6:20 pm 9:09 pm Oct 16 - Oct 23
326 6:20 pm 9:09 pm Oct 10 - Oct 10
326 6:20 pm 9:09 pm Oct 17 - Oct 24
326 6:30 pm 9:27 pm Nov 7 - Nov 16
326 6:30 pm 9:27 pm Nov 6 - Nov 6
326 6:37 pm 9:26 pm Oct 9 - Oct 9
326 6:37 pm 9:26 pm Oct 29 - Oct 29
* 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.

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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.

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Airports
Origin

Washington
$284
Destination

Seattle
$284
Airlines Airline reviews

60 travelers who booked a flight from Washington to Seattle rated their chosen airlines with an average of 7.2.

Overall
7.4
Boarding
7.6
Crew
7.9
Comfort
7.2
Food
6.3
Entertainment
6.1