Find Deals on Flights from Seattle to Washington Dulles Intl

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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Seattle to Washington Dulles Intl

(Round-trip)
Depart: Thu Jan 19 2017 Return: Fri Feb 3 2017 Trip spans 16 days
Major Airline
Major Airline
SEA
9:00p
IAD
9:50a
12h 50m
1 stop
IAD
11:50p
SEA
11:55a
12h 05m
1 stop
Depart: Tue Feb 28 2017 Return: Sat Mar 4 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
SEA
4:55a
IAD
9:47a
4h 52m
nonstop
IAD
2:00p
SEA
8:00p
6h 00m
nonstop
Depart: Wed Jan 11 2017 Return: Sat Jan 14 2017 Trip spans 4 days
United
United
SEA
5:30p
IAD
10:24p
4h 54m
nonstop
IAD
12:25p
SEA
6:18p
5h 53m
nonstop
Depart: Thu Mar 9 2017 Return: Mon Mar 13 2017 Trip spans 4 days
JetBlue
JetBlue
SEA
5:26p
IAD
1:24a
7h 58m
1 stop
IAD
10:35a
SEA
9:47p
11h 12m
1 stop
Depart: Wed Apr 26 2017 Return: Fri Apr 28 2017 Trip spans 3 days
Delta
Delta
SEA
9:05a
IAD
4:08p
7h 03m
1 stop
IAD
3:30a
SEA
11:18a
7h 48m
1 stop
Depart: Tue Dec 27 2016 Return: Tue Jan 10 2017 Trip spans 15 days
American Airlines
American Airlines
SEA
7:15p
IAD
2:16a
7h 01m
1 stop
IAD
11:03a
SEA
7:12p
8h 09m
1 stop
Depart: Tue Jan 24 2017 Return: Mon Jan 30 2017 Trip spans 7 days
Major Airline
Major Airline
SEA
9:40a
IAD
4:35a
18h 55m
1 stop
IAD
10:42p
SEA
7:21a
8h 39m
1 stop
Depart: Fri Feb 17 2017 Return: Mon Feb 20 2017 Trip spans 4 days
Major Airline
Major Airline
SEA
9:00p
IAD
9:15a
12h 15m
1 stop
IAD
11:50p
SEA
11:55a
12h 05m
1 stop
Depart: Tue Jan 10 2017 Return: Wed Jan 11 2017 Trip spans 2 days
Alaska Airlines
Alaska Airlines
SEA
4:55a
IAD
9:47a
4h 52m
nonstop
IAD
2:00p
SEA
8:00p
6h 00m
nonstop
Depart: Sat Jan 21 2017 Return: Tue Jan 24 2017 Trip spans 4 days
United
United
SEA
2:50a
IAD
7:43a
4h 53m
nonstop
IAD
3:15a
SEA
9:09a
5h 54m
nonstop
Depart: Wed Apr 12 2017 Return: Wed Apr 19 2017 Trip spans 8 days
Major Airline
Major Airline
SEA
2:45a
IAD
8:44p
17h 59m
1 stop
IAD
6:35a
SEA
5:47p
11h 12m
1 stop
Depart: Tue Jan 31 2017 Return: Sat Feb 4 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
SEA
4:55a
IAD
9:47a
4h 52m
nonstop
IAD
2:00p
SEA
8:00p
6h 00m
nonstop
Depart: Wed Feb 8 2017 Return: Tue Feb 14 2017 Trip spans 7 days
United
United
SEA
5:30p
IAD
10:24p
4h 54m
nonstop
IAD
12:25p
SEA
6:18p
5h 53m
nonstop
Depart: Wed Feb 1 2017 Return: Sat Feb 4 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
SEA
4:55a
IAD
9:47a
4h 52m
nonstop
IAD
2:00p
SEA
8:00p
6h 00m
nonstop
Depart: Mon Mar 13 2017 Return: Thu Mar 23 2017 Trip spans 11 days
JetBlue
JetBlue
SEA
6:26p
IAD
2:24a
7h 58m
1 stop
IAD
10:35a
SEA
9:47p
11h 12m
1 stop
Depart: Mon Jan 23 2017 Return: Tue Jan 31 2017 Trip spans 9 days
Major Airline
Major Airline
SEA
11:55p
IAD
4:47a
4h 52m
nonstop
IAD
9:00a
SEA
3:00p
6h 00m
nonstop
Depart: Sat Jan 14 2017 Return: Tue Jan 17 2017 Trip spans 4 days
United
United
SEA
5:45a
IAD
12:38p
6h 53m
1 stop
IAD
3:15a
SEA
9:09a
5h 54m
nonstop
Depart: Tue Apr 18 2017 Return: Mon Apr 24 2017 Trip spans 7 days
Delta
Delta
SEA
6:35p
IAD
2:24a
7h 49m
1 stop
IAD
3:30a
SEA
11:18a
7h 48m
1 stop
Depart: Sat Feb 4 2017 Return: Tue Feb 7 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
SEA
4:55a
IAD
9:47a
4h 52m
nonstop
IAD
2:00p
SEA
8:00p
6h 00m
nonstop
Depart: Tue Mar 14 2017 Return: Sat Mar 25 2017 Trip spans 12 days
JetBlue
JetBlue
SEA
6:26p
IAD
2:24a
7h 58m
1 stop
IAD
10:19a
SEA
9:47p
11h 28m
1 stop
* 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.

We compile tonnes of data for you
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.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Seattle
$238
Destination

Washington
$238
Airlines Airline reviews

57 travelers who booked a flight from Seattle to Washington rated their chosen airlines with an average of 7.0.

Overall
7.2
Boarding
7.6
Crew
7.7
Comfort
6.8
Food
6.1
Entertainment
6.2