Find Deals on Flights from Baltimore/Washington to Seattle

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 Baltimore/Washington to Seattle

(Round-trip)
Depart: Wed May 31 2017 Return: Tue Jun 6 2017 Trip spans 7 days
Spirit Airlines
Spirit Airlines
BWI
3:20a
SEA
9:00a
5h 40m
nonstop
SEA
6:40p
BWI
11:48p
5h 08m
nonstop
Depart: Wed Apr 26 2017 Return: Wed May 3 2017 Trip spans 8 days
Major Airline
Major Airline
BWI
10:15p
SEA
7:40a
9h 25m
1 stop
SEA
11:25a
BWI
7:45p
8h 20m
1 stop
Depart: Tue May 2 2017 Return: Wed May 10 2017 Trip spans 9 days
Alaska Airlines
Alaska Airlines
BWI
12:45p
SEA
6:35p
5h 50m
nonstop
SEA
3:45a
BWI
8:59a
5h 14m
nonstop
Depart: Sat May 6 2017 Return: Tue May 9 2017 Trip spans 4 days
United
United
BWI
12:05p
SEA
8:08p
8h 03m
1 stop
SEA
8:45a
BWI
4:14p
7h 29m
1 stop
Depart: Thu Sep 14 2017 Return: Mon Sep 18 2017 Trip spans 5 days
Delta
Delta
BWI
12:35p
SEA
10:22p
9h 47m
1 stop
SEA
8:55p
BWI
5:20a
8h 25m
1 stop
Depart: Wed Jun 14 2017 Return: Wed Jun 21 2017 Trip spans 8 days
Spirit Airlines
Spirit Airlines
BWI
3:35a
SEA
9:15a
5h 40m
nonstop
SEA
6:50p
BWI
11:45p
4h 55m
nonstop
Depart: Sun Apr 2 2017 Return: Thu Apr 6 2017 Trip spans 5 days
American Airlines
American Airlines
BWI
3:59p
SEA
12:53a
8h 54m
1 stop
SEA
1:00a
BWI
9:28a
8h 28m
1 stop
Depart: Sun May 28 2017 Return: Wed May 31 2017 Trip spans 4 days
Spirit Airlines
Spirit Airlines
BWI
3:20a
SEA
9:00a
5h 40m
nonstop
SEA
6:40p
BWI
11:48p
5h 08m
nonstop
Depart: Wed May 3 2017 Return: Tue May 9 2017 Trip spans 7 days
Major Airline
Major Airline
BWI
8:45a
SEA
2:35p
5h 50m
nonstop
SEA
11:45p
BWI
4:59a
5h 14m
nonstop
Depart: Sat Sep 2 2017 Return: Sun Sep 3 2017 Trip spans 2 days
Alaska Airlines
Alaska Airlines
BWI
12:50p
SEA
6:45p
5h 55m
nonstop
SEA
3:45a
BWI
8:40a
4h 55m
nonstop
Depart: Tue May 30 2017 Return: Wed May 31 2017 Trip spans 2 days
Spirit Airlines
Spirit Airlines
BWI
3:35a
SEA
9:15a
5h 40m
nonstop
SEA
6:40p
BWI
11:48p
5h 08m
nonstop
Depart: Sun Apr 9 2017 Return: Mon Apr 10 2017 Trip spans 2 days
JetBlue
JetBlue
BWI
2:00a
SEA
12:53p
10h 53m
1 stop
SEA
7:38p
BWI
7:20a
11h 42m
1 stop
Depart: Sat Sep 9 2017 Return: Fri Sep 15 2017 Trip spans 7 days
Major Airline
Major Airline
BWI
8:50a
SEA
2:45p
5h 55m
nonstop
SEA
11:45p
BWI
4:40a
4h 55m
nonstop
Depart: Thu Jun 1 2017 Return: Tue Jun 6 2017 Trip spans 6 days
Spirit Airlines
Spirit Airlines
BWI
3:20a
SEA
9:00a
5h 40m
nonstop
SEA
6:40p
BWI
11:48p
5h 08m
nonstop
Depart: Fri Apr 21 2017 Return: Tue Apr 25 2017 Trip spans 5 days
Delta
Delta
BWI
1:59p
SEA
10:28p
8h 29m
1 stop
SEA
6:45p
BWI
2:23a
7h 38m
1 stop
Depart: Thu Apr 20 2017 Return: Fri Apr 28 2017 Trip spans 9 days
Major Airline
Major Airline
BWI
10:15p
SEA
7:40a
9h 25m
1 stop
SEA
4:56p
BWI
1:11a
8h 15m
1 stop
Depart: Fri Jun 2 2017 Return: Tue Jun 6 2017 Trip spans 5 days
Spirit Airlines
Spirit Airlines
BWI
3:20a
SEA
9:00a
5h 40m
nonstop
SEA
6:40p
BWI
11:48p
5h 08m
nonstop
Depart: Sun Sep 3 2017 Return: Fri Sep 8 2017 Trip spans 6 days
Alaska Airlines
Alaska Airlines
BWI
12:50p
SEA
6:45p
5h 55m
nonstop
SEA
3:45a
BWI
8:40a
4h 55m
nonstop
Depart: Wed Apr 5 2017 Return: Wed Apr 12 2017 Trip spans 8 days
Delta
Delta
BWI
2:05a
SEA
9:53a
7h 48m
1 stop
SEA
2:15p
BWI
10:00p
7h 45m
1 stop
Depart: Thu Apr 27 2017 Return: Tue May 2 2017 Trip spans 6 days
Major Airline
Major Airline
BWI
6:59a
SEA
5:46p
10h 47m
1 stop
SEA
5:50a
BWI
6:00p
12h 10m
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.

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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,
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Airports
Origin

Baltimore
$237
Destination

Seattle
$237
Airlines Airline reviews

26 travelers who booked a flight from Baltimore to Seattle rated their chosen airlines with an average of 7.7.

Overall
8.1
Boarding
7.8
Crew
8.5
Comfort
7.8
Food
6.9
Entertainment
6.5