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: Sat Sep 30 2017 Return: Mon Oct 2 2017 Trip spans 3 days
Major Airline
Major Airline
IAD
9:20a
SEA
3:30p
6h 10m
nonstop
SEA
11:40p
IAD
4:55a
5h 15m
nonstop
Depart: Fri Jun 2 2017 Return: Sat Jun 3 2017 Trip spans 2 days
American Airlines
American Airlines
IAD
1:05a
SEA
9:01a
7h 56m
1 stop
SEA
8:15p
IAD
3:14a
6h 59m
1 stop
Depart: Mon Sep 25 2017 Return: Mon Oct 2 2017 Trip spans 8 days
Delta
Delta
IAD
9:00a
SEA
6:50p
9h 50m
1 stop
SEA
6:30p
IAD
4:34a
10h 04m
1 stop
Depart: Thu Nov 30 2017 Return: Mon Dec 4 2017 Trip spans 5 days
JetBlue
JetBlue
IAD
6:59a
SEA
7:56p
12h 57m
1 stop
SEA
4:32p
IAD
3:12a
10h 40m
1 stop
Depart: Sat Sep 2 2017 Return: Sat Sep 9 2017 Trip spans 8 days
Frontier
Frontier
IAD
2:45p
SEA
9:07a
18h 22m
1 stop
SEA
6:55a
IAD
10:21p
15h 26m
1 stop
Depart: Thu Oct 12 2017 Return: Sun Oct 15 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
IAD
1:29p
SEA
1:15a
11h 46m
1 stop
SEA
4:55p
IAD
9:34a
16h 39m
1 stop
Depart: Mon Jun 19 2017 Return: Mon Jun 26 2017 Trip spans 8 days
United
United
IAD
2:35p
SEA
8:23p
5h 48m
nonstop
SEA
6:30p
IAD
11:22p
4h 52m
nonstop
Depart: Thu Jul 13 2017 Return: Tue Jul 18 2017 Trip spans 6 days
Virgin America
Virgin America
IAD
5:00a
SEA
4:20p
11h 20m
1 stop
SEA
1:00p
IAD
11:00p
10h 00m
1 stop
Depart: Sat Aug 26 2017 Return: Fri Sep 1 2017 Trip spans 7 days
Major Airline
Major Airline
IAD
9:20a
SEA
3:20p
6h 00m
nonstop
SEA
11:55p
IAD
5:10a
5h 15m
nonstop
Depart: Sat Sep 16 2017 Return: Fri Sep 22 2017 Trip spans 7 days
Major Airline
Major Airline
IAD
9:20a
SEA
3:30p
6h 10m
nonstop
SEA
11:40p
IAD
4:55a
5h 15m
nonstop
Depart: Wed Oct 4 2017 Return: Fri Oct 6 2017 Trip spans 3 days
Major Airline
Major Airline
IAD
9:05a
SEA
3:15p
6h 10m
nonstop
SEA
11:40p
IAD
4:55a
5h 15m
nonstop
Depart: Sat Jun 3 2017 Return: Tue Jun 6 2017 Trip spans 4 days
American Airlines
American Airlines
IAD
11:20a
SEA
9:58p
10h 38m
1 stop
SEA
6:20p
IAD
1:45a
7h 25m
1 stop
Depart: Thu Oct 26 2017 Return: Sun Oct 29 2017 Trip spans 4 days
Delta
Delta
IAD
3:30a
SEA
11:20a
7h 50m
1 stop
SEA
6:30p
IAD
2:10a
7h 40m
1 stop
Depart: Wed Oct 18 2017 Return: Mon Oct 30 2017 Trip spans 13 days
Major Airline
Major Airline
IAD
9:05a
SEA
3:15p
6h 10m
nonstop
SEA
11:40p
IAD
4:55a
5h 15m
nonstop
Depart: Wed Sep 27 2017 Return: Fri Sep 29 2017 Trip spans 3 days
Frontier
Frontier
IAD
2:35p
SEA
9:02a
18h 27m
1 stop
SEA
2:15p
IAD
10:21p
8h 06m
1 stop
Depart: Tue Aug 29 2017 Return: Tue Sep 12 2017 Trip spans 15 days
American Airlines
American Airlines
IAD
1:20a
SEA
11:02a
9h 42m
1 stop
SEA
2:00a
IAD
10:28a
8h 28m
1 stop
Depart: Sat Nov 4 2017 Return: Tue Nov 7 2017 Trip spans 4 days
Delta
Delta
IAD
3:30a
SEA
11:20a
7h 50m
1 stop
SEA
6:35a
IAD
3:39p
9h 04m
1 stop
Depart: Tue Oct 10 2017 Return: Sat Oct 14 2017 Trip spans 5 days
Major Airline
Major Airline
IAD
2:00a
SEA
11:45a
9h 45m
1 stop
SEA
3:29p
IAD
11:03p
7h 34m
1 stop
Depart: Wed Sep 6 2017 Return: Wed Sep 13 2017 Trip spans 8 days
American Airlines
American Airlines
IAD
1:20a
SEA
11:02a
9h 42m
1 stop
SEA
2:00a
IAD
10:28a
8h 28m
1 stop
Depart: Mon Nov 6 2017 Return: Tue Nov 7 2017 Trip spans 2 days
JetBlue
JetBlue
IAD
1:43p
SEA
10:19p
8h 36m
1 stop
SEA
4:32p
IAD
3:16a
10h 44m
1 stop
Direct flights IAD to SEA on United
Flight # Depart IAD Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
389 8:15 am 11:03 am Jul 1 - Jul 8
389 8:15 am 11:03 am Jul 2 - Jul 2
389 8:15 am 11:03 am Jul 3 - Jul 3
389 8:20 am 11:04 am Jun 8 - Jun 8
389 8:25 am 11:09 am Jun 9 - Jun 16
389 8:25 am 11:09 am Jun 10 - Jun 17
389 8:25 am 11:09 am Jun 11 - Jun 25
389 8:25 am 11:09 am Jun 13 - Jun 20
389 8:25 am 11:09 am Jun 19 - Jun 24
389 8:25 am 11:09 am Jun 21 - Jun 30
389 8:35 am 11:19 am May 22 - Jun 2
389 8:35 am 11:19 am Jun 4 - Jun 4
389 8:35 am 11:19 am Jun 5 - Jun 7
1769 4:05 pm 6:46 pm May 21 - Jun 7
1769 4:05 pm 6:46 pm Jun 3 - Jun 3
1769 4:05 pm 6:52 pm Jun 8 - Jun 29
1769 4:05 pm 6:52 pm Jun 10 - Jun 24
1769 4:25 pm 7:11 pm Jul 2 - Jul 9
1769 4:25 pm 7:13 pm Jul 3 - Jul 8
1769 4:30 pm 7:18 pm Jul 1 - Jul 1
1769 4:44 pm 7:31 pm Jun 30 - Jun 30
326 5:59 pm 8:53 pm May 22 - Jun 2
326 5:59 pm 8:53 pm Jun 5 - Jun 7
326 6:09 pm 9:03 pm Jun 4 - Jun 4
326 6:15 pm 9:03 pm Jul 1 - Jul 8
326 6:15 pm 9:03 pm Jul 2 - Jul 2
326 6:15 pm 9:03 pm Jul 3 - Jul 3
326 6:35 pm 9:23 pm Jun 8 - Jun 16
326 6:35 pm 9:23 pm Jun 10 - Jun 24
326 6:35 pm 9:23 pm Jun 13 - Jun 27
326 6:35 pm 9:23 pm Jun 18 - Jun 22
326 6:35 pm 9:23 pm Jun 21 - Jun 28
326 6:35 pm 9:23 pm Jun 29 - Jun 30
326 7:00 pm 9:54 pm Jun 3 - Jun 3
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Washington
$272
Destination

Seattle
$272
Airlines Airline reviews

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

Overall
7.5
Boarding
7.7
Crew
7.8
Comfort
7.1
Food
6.5
Entertainment
6.3