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

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 Seattle/Tacoma Intl to Washington Dulles Intl

(Round-trip)
Depart: Tue Aug 29 2017 Return: Mon Sep 11 2017 Trip spans 14 days
Frontier
Frontier
SEA
2:59p
IAD
10:17p
7h 18m
1 stop
IAD
2:45p
SEA
9:02a
18h 17m
1 stop
Depart: Tue Oct 31 2017 Return: Wed Nov 1 2017 Trip spans 2 days
United
United
SEA
6:50p
IAD
11:38p
4h 48m
nonstop
IAD
4:39a
SEA
10:31a
5h 52m
nonstop
Depart: Sat Nov 4 2017 Return: Tue Nov 7 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
SEA
3:40a
IAD
8:55a
5h 15m
nonstop
IAD
4:05a
SEA
10:02a
5h 57m
nonstop
Depart: Wed Nov 15 2017 Return: Mon Nov 20 2017 Trip spans 6 days
Delta
Delta
SEA
8:15a
IAD
3:08p
6h 53m
1 stop
IAD
11:52a
SEA
7:56p
8h 04m
1 stop
Depart: Wed Aug 23 2017 Return: Thu Aug 24 2017 Trip spans 2 days
American Airlines
American Airlines
SEA
6:20p
IAD
1:45a
7h 25m
1 stop
IAD
7:46a
SEA
3:55p
8h 09m
1 stop
Depart: Wed Aug 30 2017 Return: Sat Sep 9 2017 Trip spans 11 days
Frontier
Frontier
SEA
2:44p
IAD
10:17p
7h 33m
1 stop
IAD
2:45p
SEA
9:02a
18h 17m
1 stop
Depart: Thu Sep 7 2017 Return: Fri Sep 8 2017 Trip spans 2 days
Frontier
Frontier
SEA
3:10p
IAD
10:21p
7h 11m
1 stop
IAD
2:45p
SEA
9:02a
18h 17m
1 stop
Depart: Fri Sep 8 2017 Return: Mon Sep 11 2017 Trip spans 4 days
Frontier
Frontier
SEA
2:40p
IAD
10:21p
7h 41m
1 stop
IAD
2:45p
SEA
9:02a
18h 17m
1 stop
Depart: Sat Sep 9 2017 Return: Tue Sep 19 2017 Trip spans 11 days
United
United
SEA
8:45a
IAD
1:46p
5h 01m
nonstop
IAD
8:47a
SEA
2:28p
5h 41m
nonstop
Depart: Tue Nov 7 2017 Return: Sat Nov 11 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
SEA
10:55a
IAD
3:51p
4h 56m
nonstop
IAD
4:05a
SEA
10:02a
5h 57m
nonstop
Depart: Mon Sep 11 2017 Return: Fri Sep 22 2017 Trip spans 12 days
Frontier
Frontier
SEA
2:40p
IAD
10:21p
7h 41m
1 stop
IAD
2:45p
SEA
9:02a
18h 17m
1 stop
Depart: Wed Nov 1 2017 Return: Sat Nov 4 2017 Trip spans 4 days
United
United
SEA
3:40a
IAD
8:42a
5h 02m
nonstop
IAD
4:39a
SEA
10:29a
5h 50m
nonstop
Depart: Wed Nov 8 2017 Return: Sat Nov 11 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
SEA
10:55a
IAD
3:51p
4h 56m
nonstop
IAD
4:05a
SEA
10:02a
5h 57m
nonstop
Depart: Wed Nov 29 2017 Return: Wed Dec 6 2017 Trip spans 8 days
American Airlines
American Airlines
SEA
5:15p
IAD
2:30a
9h 15m
1 stop
IAD
6:00a
SEA
3:55p
9h 55m
1 stop
Depart: Thu Aug 31 2017 Return: Thu Sep 21 2017 Trip spans 22 days
Delta
Delta
SEA
9:10a
IAD
4:56p
7h 46m
1 stop
IAD
2:00a
SEA
9:45a
7h 45m
1 stop
Depart: Tue Sep 12 2017 Return: Mon Sep 18 2017 Trip spans 7 days
Frontier
Frontier
SEA
3:10p
IAD
10:21p
7h 11m
1 stop
IAD
2:45p
SEA
9:02a
18h 17m
1 stop
Depart: Sat Nov 11 2017 Return: Tue Nov 14 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
SEA
10:55a
IAD
3:51p
4h 56m
nonstop
IAD
4:05a
SEA
10:02a
5h 57m
nonstop
Depart: Fri Nov 3 2017 Return: Sat Nov 4 2017 Trip spans 2 days
United
United
SEA
6:50p
IAD
11:38p
4h 48m
nonstop
IAD
4:40a
SEA
1:55p
9h 15m
2 stops
Depart: Wed Jan 10 2018 Return: Mon Jan 15 2018 Trip spans 6 days
Delta
Delta
SEA
6:15p
IAD
4:07a
9h 52m
1 stop
IAD
9:30a
SEA
8:09p
10h 39m
1 stop
Depart: Wed Sep 13 2017 Return: Mon Sep 18 2017 Trip spans 6 days
Frontier
Frontier
SEA
2:40p
IAD
10:21p
7h 41m
1 stop
IAD
2:45p
SEA
9:02a
18h 17m
1 stop
Direct flights SEA to IAD on United
Flight # Depart SEA Arrive IAD Sun Mon Tue Wed Thu Fri Sat Valid Between
419 7:30 am 3:36 pm Aug 20 - Aug 27
419 7:35 am 3:47 pm Sep 23 - Sep 24
419 7:35 am 3:47 pm Sep 16 - Sep 16
419 7:35 am 3:47 pm Sep 12 - Sep 27
419 7:35 am 3:47 pm Sep 10 - Sep 17
419 7:35 am 3:45 pm Sep 9 - Sep 9
419 7:35 am 3:45 pm Sep 8 - Sep 8
419 7:35 am 3:47 pm Sep 7 - Sep 7
419 7:35 am 3:41 pm Aug 16 - Sep 2
419 7:35 am 3:47 pm Sep 6 - Sep 11
419 7:35 am 3:43 pm Sep 4 - Sep 4
419 7:35 am 3:41 pm Sep 3 - Sep 5
419 7:35 am 3:45 pm Sep 25 - Sep 25
419 7:40 am 3:52 pm Sep 18 - Sep 18
260 12:45 pm 8:46 pm Sep 11 - Sep 29
260 12:45 pm 8:46 pm Sep 14 - Sep 28
260 12:45 pm 8:46 pm Sep 16 - Sep 16
260 12:45 pm 8:46 pm Sep 17 - Sep 17
260 12:45 pm 8:46 pm Sep 23 - Sep 30
260 12:45 pm 8:46 pm Sep 24 - Oct 1
260 12:45 pm 8:46 pm Sep 6 - Sep 6
260 12:45 pm 8:46 pm Sep 7 - Sep 7
260 12:45 pm 8:46 pm Sep 8 - Sep 8
260 12:45 pm 8:46 pm Sep 9 - Sep 9
260 12:45 pm 8:46 pm Sep 10 - Sep 10
260 12:45 pm 8:46 pm Sep 12 - Oct 3
260 1:05 pm 9:08 pm Aug 19 - Aug 26
260 1:05 pm 9:06 pm Aug 25 - Aug 31
260 1:05 pm 9:06 pm Aug 27 - Aug 27
260 1:05 pm 9:06 pm Aug 28 - Aug 28
260 1:10 pm 9:11 pm Sep 1 - Sep 1
260 1:10 pm 9:13 pm Sep 2 - Sep 2
260 1:10 pm 9:11 pm Sep 5 - Sep 5
260 1:10 pm 9:13 pm Sep 4 - Sep 4
260 1:10 pm 9:13 pm Sep 3 - Sep 3
1462 10:25 pm 6:16 am Aug 16 - Aug 31
1013 10:30 pm 6:21 am Sep 10 - Oct 1
1178 10:30 pm 6:21 am Sep 6 - Sep 8
1178 10:30 pm 6:21 am Sep 11 - Sep 27
1181 10:30 pm 6:21 am Sep 7 - Sep 7
1462 10:30 pm 6:21 am Sep 1 - Sep 4
1462 10:30 pm 6:21 am Sep 5 - Sep 5
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Seattle
$238
Destination

Washington
$238
Airlines Airline reviews

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

Overall
7.6
Boarding
7.9
Crew
7.9
Comfort
7.0
Food
6.3
Entertainment
6.6