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
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: Fri Aug 26 2016 Return: Thu Sep 1 2016 Trip spans 7 days
Major Airline
Major Airline
IAD
11:15p
SEA
8:17a
9h 02m
1 stop
SEA
6:05a
IAD
6:00p
11h 55m
1 stop
Depart: Mon Sep 12 2016 Return: Wed Sep 21 2016 Trip spans 10 days
Delta
Delta
IAD
1:10p
SEA
8:16p
7h 06m
1 stop
SEA
8:15a
IAD
4:42p
8h 27m
1 stop
Depart: Tue Jun 7 2016 Return: Tue Jun 28 2016 Trip spans 22 days
Virgin America
Virgin America
IAD
3:20a
SEA
12:05p
8h 45m
1 stop
SEA
1:00p
IAD
11:05p
10h 05m
1 stop
Depart: Tue May 17 2016 Return: Wed May 18 2016 Trip spans 2 days
Frontier
Frontier
IAD
3:15a
SEA
5:24p
14h 09m
1 stop
SEA
7:30a
IAD
10:01p
14h 31m
1 stop
Depart: Sat May 21 2016 Return: Sun May 22 2016 Trip spans 2 days
United
United
IAD
1:42p
SEA
7:39p
5h 57m
nonstop
SEA
4:00a
IAD
9:00a
5h 00m
nonstop
Depart: Thu Jun 2 2016 Return: Fri Jun 3 2016 Trip spans 2 days
Alaska Airlines
Alaska Airlines
IAD
2:35p
SEA
8:33p
5h 58m
nonstop
SEA
5:35a
IAD
10:35a
5h 00m
nonstop
Depart: Mon Jun 13 2016 Return: Tue Jun 14 2016 Trip spans 2 days
American Airlines
American Airlines
IAD
12:15p
SEA
9:54p
9h 39m
1 stop
SEA
8:20p
IAD
3:53a
7h 33m
1 stop
Depart: Wed Jul 27 2016 Return: Wed Aug 3 2016 Trip spans 8 days
Southwest
Southwest
IAD
12:45p
SEA
9:00p
8h 15m
1 stop
SEA
2:20a
IAD
10:05a
7h 45m
1 stop
Depart: Tue Sep 13 2016 Return: Mon Sep 26 2016 Trip spans 14 days
Delta
Delta
IAD
8:48a
SEA
4:09p
7h 21m
1 stop
SEA
7:20p
IAD
2:15a
6h 55m
1 stop
Depart: Thu Oct 6 2016 Return: Sun Oct 9 2016 Trip spans 4 days
Major Airline
Major Airline
IAD
11:15p
SEA
8:15a
9h 00m
1 stop
SEA
9:45a
IAD
8:40p
10h 55m
1 stop
Depart: Wed Sep 14 2016 Return: Sat Sep 24 2016 Trip spans 11 days
Delta
Delta
IAD
1:10p
SEA
8:16p
7h 06m
1 stop
SEA
3:00a
IAD
12:03p
9h 03m
1 stop
Depart: Tue Oct 25 2016 Return: Tue Nov 1 2016 Trip spans 8 days
Major Airline
Major Airline
IAD
1:00a
SEA
11:55a
10h 55m
1 stop
SEA
1:55a
IAD
11:55a
10h 00m
1 stop
Depart: Sat Sep 17 2016 Return: Sat Sep 24 2016 Trip spans 8 days
Delta
Delta
IAD
1:10p
SEA
8:16p
7h 06m
1 stop
SEA
3:00a
IAD
12:03p
9h 03m
1 stop
Depart: Wed Jun 8 2016 Return: Tue Jun 28 2016 Trip spans 21 days
Virgin America
Virgin America
IAD
3:20a
SEA
12:05p
8h 45m
1 stop
SEA
1:00p
IAD
11:05p
10h 05m
1 stop
Depart: Wed Aug 17 2016 Return: Tue Aug 30 2016 Trip spans 14 days
Frontier
Frontier
IAD
3:15a
SEA
12:17p
9h 02m
1 stop
SEA
3:15p
IAD
10:00p
6h 45m
1 stop
Depart: Mon Sep 19 2016 Return: Sat Sep 24 2016 Trip spans 6 days
Delta
Delta
IAD
1:10p
SEA
8:16p
7h 06m
1 stop
SEA
3:00a
IAD
12:03p
9h 03m
1 stop
Depart: Wed Aug 24 2016 Return: Wed Aug 31 2016 Trip spans 8 days
Major Airline
Major Airline
IAD
1:00a
SEA
12:00p
11h 00m
1 stop
SEA
9:00a
IAD
7:05p
10h 05m
1 stop
Depart: Tue Aug 23 2016 Return: Sat Aug 27 2016 Trip spans 5 days
Virgin America
Virgin America
IAD
8:00a
SEA
7:25p
11h 25m
1 stop
SEA
1:05p
IAD
11:05p
10h 00m
1 stop
Depart: Tue Sep 20 2016 Return: Mon Sep 26 2016 Trip spans 7 days
Delta
Delta
IAD
5:59a
SEA
12:50p
6h 51m
1 stop
SEA
8:55p
IAD
5:24a
8h 29m
1 stop
Depart: Wed Aug 31 2016 Return: Wed Sep 7 2016 Trip spans 8 days
Virgin America
Virgin America
IAD
3:20a
SEA
12:05p
8h 45m
1 stop
SEA
1:45p
IAD
12:45a
11h 00m
1 stop
Direct flights IAD to SEA on United
Flight # Depart IAD Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
389 8:51 am 11:40 am Jun 2 - Jun 7
389 8:51 am 11:40 am May 15 - May 27
389 8:51 am 11:40 am May 11 - May 11
389 8:51 am 11:40 am May 5 - May 13
389 8:51 am 11:40 am May 8 - May 8
389 8:51 am 11:40 am Jun 5 - Jun 8
389 8:51 am 11:40 am May 29 - May 30
389 8:51 am 11:40 am May 18 - Jun 1
389 8:51 am 11:40 am May 10 - May 17
1603 3:30 pm 6:15 pm May 10 - Jun 7
1603 3:30 pm 6:15 pm May 5 - Jun 8
1603 3:40 pm 6:27 pm May 28 - May 28
1603 3:40 pm 6:25 pm Jun 5 - Jun 5
1603 3:40 pm 6:25 pm Jun 4 - Jun 4
1603 3:40 pm 6:25 pm May 8 - May 22
1603 3:40 pm 6:25 pm May 7 - May 21
1603 3:44 pm 6:31 pm May 29 - May 29
326 5:42 pm 8:39 pm May 13 - May 27
326 5:42 pm 8:39 pm May 5 - May 6
326 5:42 pm 8:39 pm May 7 - May 28
326 5:42 pm 8:39 pm May 8 - May 22
326 5:42 pm 8:39 pm May 30 - May 30
326 5:42 pm 8:39 pm Jun 2 - Jun 3
326 5:42 pm 8:39 pm Jun 1 - Jun 1
326 5:42 pm 8:39 pm Jun 6 - Jun 6
326 5:42 pm 8:39 pm Jun 5 - Jun 5
326 5:42 pm 8:39 pm Jun 4 - Jun 4
326 5:42 pm 8:39 pm May 12 - May 12
326 5:42 pm 8:39 pm May 11 - May 25
326 5:42 pm 8:39 pm May 10 - May 31
326 5:42 pm 8:39 pm May 9 - May 9
326 5:49 pm 8:46 pm May 29 - May 29
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Why aren’t prices accurate 100% of the time?
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Airports
Origin

Washington
$230
Destination

Seattle
$230