Find Cheap 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
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: Wed Nov 29 2017 Return: Wed Dec 6 2017 Trip spans 8 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
SEA
6:56p
18h 56m
1 stop
SEA
12:00a
IAD
10:20a
10h 20m
1 stop
Depart: Tue Apr 10 2018 Return: Mon Apr 16 2018 Trip spans 7 days
Frontier
Frontier
IAD
12:00a
SEA
8:12a
8h 12m
1 stop
SEA
12:00a
IAD
8:02a
8h 02m
1 stop
Depart: Sat Feb 17 2018 Return: Sat Feb 24 2018 Trip spans 8 days
Alaska Airlines
Alaska Airlines
IAD
12:00a
SEA
6:15a
6h 15m
nonstop
SEA
12:00a
IAD
4:50a
4h 50m
nonstop
Depart: Thu Mar 22 2018 Return: Tue Mar 27 2018 Trip spans 6 days
United
United
IAD
12:00a
SEA
5:39a
5h 39m
nonstop
SEA
12:00a
IAD
4:49a
4h 49m
nonstop
Depart: Mon Mar 26 2018 Return: Fri Mar 30 2018 Trip spans 5 days
JetBlue
JetBlue
IAD
12:00a
SEA
12:07p
12h 07m
1 stop
SEA
12:00a
IAD
10:28a
10h 28m
1 stop
Depart: Thu Dec 7 2017 Return: Tue Dec 12 2017 Trip spans 6 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
SEA
6:56p
18h 56m
1 stop
SEA
12:00a
IAD
10:10a
10h 10m
1 stop
Depart: Mon May 21 2018 Return: Mon Jun 4 2018 Trip spans 15 days
Frontier
Frontier
IAD
12:00a
SEA
2:39p
14h 39m
1 stop
SEA
12:00a
IAD
8:00a
8h 00m
1 stop
Depart: Thu Mar 8 2018 Return: Mon Mar 12 2018 Trip spans 4 days
Virgin America
Virgin America
IAD
12:00a
SEA
12:33p
12h 33m
1 stop
SEA
12:00a
IAD
10:20a
10h 20m
1 stop
Depart: Wed May 9 2018 Return: Tue May 15 2018 Trip spans 7 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
SEA
2:39p
14h 39m
1 stop
SEA
12:00a
IAD
6:41a
6h 41m
1 stop
Depart: Wed May 23 2018 Return: Wed May 30 2018 Trip spans 8 days
Frontier
Frontier
IAD
12:00a
SEA
5:50p
17h 50m
1 stop
SEA
12:00a
IAD
8:00a
8h 00m
1 stop
Depart: Sat Jan 13 2018 Return: Fri Jan 19 2018 Trip spans 7 days
Alaska Airlines
Alaska Airlines
IAD
12:00a
SEA
5:59a
5h 59m
nonstop
SEA
12:00a
IAD
4:59a
4h 59m
nonstop
Depart: Wed Feb 21 2018 Return: Fri Feb 23 2018 Trip spans 3 days
Alaska Airlines
Alaska Airlines
IAD
12:00a
SEA
6:15a
6h 15m
nonstop
SEA
12:00a
IAD
4:50a
4h 50m
nonstop
Depart: Mon Apr 16 2018 Return: Sat Apr 21 2018 Trip spans 6 days
Frontier
Frontier
IAD
12:00a
SEA
8:32a
8h 32m
1 stop
SEA
12:00a
IAD
7:53a
7h 53m
1 stop
Depart: Thu Jan 11 2018 Return: Mon Jan 15 2018 Trip spans 5 days
Alaska Airlines
Alaska Airlines
IAD
12:00a
SEA
5:59a
5h 59m
nonstop
SEA
12:00a
IAD
4:59a
4h 59m
nonstop
Depart: Fri Mar 9 2018 Return: Thu Mar 15 2018 Trip spans 6 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
SEA
5:35a
5h 35m
nonstop
SEA
12:00a
IAD
5:00a
5h 00m
nonstop
Depart: Fri Dec 15 2017 Return: Tue Dec 26 2017 Trip spans 12 days
United
United
IAD
12:00a
SEA
5:52a
5h 52m
nonstop
SEA
12:00a
IAD
4:55a
4h 55m
nonstop
Depart: Sun Dec 10 2017 Return: Mon Dec 18 2017 Trip spans 9 days
Alaska Airlines
Alaska Airlines
IAD
12:00a
SEA
6:05a
6h 05m
nonstop
SEA
12:00a
IAD
4:52a
4h 52m
nonstop
Depart: Fri Dec 15 2017 Return: Mon Dec 18 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
IAD
12:00a
SEA
6:05a
6h 05m
nonstop
SEA
12:00a
IAD
4:52a
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 8:39 am 11:31 am Dec 1 - Dec 1
389 8:39 am 11:29 am Dec 2 - Dec 9
389 8:39 am 11:31 am Dec 3 - Dec 3
389 8:39 am 11:31 am Dec 4 - Dec 11
389 8:39 am 11:31 am Dec 5 - Dec 15
389 8:39 am 11:31 am Dec 6 - Dec 6
389 8:39 am 11:31 am Dec 7 - Dec 7
389 8:39 am 11:31 am Dec 13 - Dec 18
389 8:39 am 11:31 am Dec 16 - Dec 19
389 8:39 am 11:30 am Dec 20 - Dec 20
389 8:39 am 11:28 am Dec 21 - Jan 4
389 8:39 am 11:28 am Dec 22 - Dec 29
389 8:39 am 11:30 am Dec 24 - Dec 24
389 8:39 am 11:30 am Dec 31 - Jan 7
357 12:31 pm 3:24 pm Dec 3 - Dec 17
357 12:34 pm 3:30 pm Jan 1 - Jan 1
357 12:45 pm 3:39 pm Dec 20 - Dec 29
357 12:45 pm 3:41 pm Dec 24 - Dec 31
357 12:45 pm 3:39 pm Dec 25 - Dec 26
357 1:04 pm 3:58 pm Dec 23 - Jan 6
326 5:35 pm 8:31 pm Dec 20 - Jan 3
326 5:35 pm 8:31 pm Dec 21 - Dec 29
326 5:35 pm 8:31 pm Dec 23 - Dec 26
326 5:35 pm 8:31 pm Dec 24 - Dec 31
326 5:35 pm 8:31 pm Dec 25 - Dec 25
326 5:35 pm 8:31 pm Dec 30 - Dec 30
326 5:35 pm 8:31 pm Jan 1 - Jan 2
326 5:50 pm 8:43 pm Nov 29 - Dec 13
326 5:50 pm 8:43 pm Dec 1 - Dec 7
326 5:50 pm 8:43 pm Dec 2 - Dec 16
326 5:50 pm 8:43 pm Dec 3 - Dec 17
326 5:50 pm 8:43 pm Dec 4 - Dec 11
326 5:50 pm 8:43 pm Dec 5 - Dec 5
326 5:50 pm 8:43 pm Dec 8 - Dec 8
326 5:50 pm 8:43 pm Dec 12 - Dec 12
326 5:50 pm 8:43 pm Dec 14 - Dec 18
326 5:50 pm 8:43 pm Dec 19 - Dec 19
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Washington
$239
Destination

Seattle
$239