Find Deals on Flights from Lambert-St Louis to Washington (STL - WAS)

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 Lambert-St Louis to Washington

(Round-trip)
Depart: Thu Feb 9 2017 Return: Mon Feb 13 2017 Trip spans 5 days
Major Airline
Major Airline
STL
3:25a
DCA
5:19a
1h 54m
nonstop
DCA
1:38a
STL
3:59a
2h 21m
nonstop
Depart: Wed Feb 15 2017 Return: Thu Feb 16 2017 Trip spans 2 days
American Airlines
American Airlines
STL
1:10a
DCA
3:23a
2h 13m
nonstop
DCA
3:30a
STL
5:54a
2h 24m
nonstop
Depart: Tue Feb 28 2017 Return: Mon Mar 6 2017 Trip spans 7 days
United
United
STL
3:25a
IAD
5:25a
2h 00m
nonstop
IAD
5:10p
STL
7:40p
2h 30m
nonstop
Depart: Fri Mar 31 2017 Return: Mon Apr 3 2017 Trip spans 4 days
Delta
Delta
STL
5:23a
DCA
11:37a
6h 14m
1 stop
DCA
10:55a
STL
6:24p
7h 29m
1 stop
Depart: Sat May 27 2017 Return: Sun May 28 2017 Trip spans 2 days
Alaska Airlines
Alaska Airlines
STL
6:15a
DCA
8:08a
1h 53m
nonstop
DCA
3:30p
STL
5:28p
1h 58m
nonstop
Depart: Mon Feb 13 2017 Return: Wed Feb 15 2017 Trip spans 3 days
Major Airline
Major Airline
STL
3:25a
DCA
5:19a
1h 54m
1 stop
DCA
1:38a
STL
3:59a
2h 21m
1 stop
Depart: Wed Feb 22 2017 Return: Sat Feb 25 2017 Trip spans 4 days
American Airlines
American Airlines
STL
12:45a
DCA
2:48a
2h 03m
nonstop
DCA
8:59a
STL
11:18a
2h 19m
nonstop
Depart: Thu Mar 2 2017 Return: Mon Mar 6 2017 Trip spans 5 days
United
United
STL
3:25a
IAD
5:25a
2h 00m
nonstop
IAD
5:10p
STL
7:40p
2h 30m
nonstop
Depart: Thu Feb 23 2017 Return: Sat Feb 25 2017 Trip spans 3 days
American Airlines
American Airlines
STL
12:45a
DCA
2:48a
2h 03m
nonstop
DCA
8:59a
STL
11:18a
2h 19m
nonstop
Depart: Fri Feb 24 2017 Return: Mon Feb 27 2017 Trip spans 4 days
Major Airline
Major Airline
STL
8:30p
DCA
10:59a
14h 29m
nonstop
DCA
11:00a
STL
1:20p
2h 20m
nonstop
Depart: Sat Mar 4 2017 Return: Mon Mar 6 2017 Trip spans 3 days
United
United
STL
1:18p
IAD
3:15p
1h 57m
nonstop
IAD
5:10p
STL
7:40p
2h 30m
nonstop
Depart: Sat Feb 25 2017 Return: Mon Feb 27 2017 Trip spans 3 days
American Airlines
American Airlines
STL
2:30a
DCA
4:33a
2h 03m
nonstop
DCA
4:00p
STL
6:20p
2h 20m
nonstop
Depart: Mon Feb 27 2017 Return: Tue Feb 28 2017 Trip spans 2 days
Major Airline
Major Airline
STL
12:24a
DCA
2:18a
1h 54m
1 stop
DCA
4:59a
STL
7:18a
2h 19m
1 stop
Depart: Thu Mar 23 2017 Return: Tue Mar 28 2017 Trip spans 6 days
United
United
STL
8:45a
IAD
10:49a
2h 04m
nonstop
IAD
6:05p
STL
8:22p
2h 17m
nonstop
Depart: Mon Apr 10 2017 Return: Thu Apr 13 2017 Trip spans 4 days
Delta
Delta
STL
1:00p
IAD
6:43p
5h 43m
1 stop
IAD
2:10a
STL
6:29a
4h 19m
1 stop
Depart: Wed Mar 1 2017 Return: Sat Mar 4 2017 Trip spans 4 days
American Airlines
American Airlines
STL
12:45a
DCA
2:48a
2h 03m
nonstop
DCA
8:59a
STL
11:18a
2h 19m
nonstop
Depart: Wed Mar 29 2017 Return: Sat Apr 1 2017 Trip spans 4 days
United
United
STL
4:15a
IAD
6:19a
2h 04m
nonstop
IAD
6:05p
STL
8:22p
2h 17m
nonstop
Depart: Sat Jun 10 2017 Return: Wed Jun 14 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
STL
6:15a
DCA
8:08a
1h 53m
nonstop
DCA
4:35a
STL
6:33a
1h 58m
nonstop
Depart: Tue Apr 18 2017 Return: Mon Apr 24 2017 Trip spans 7 days
Major Airline
Major Airline
STL
9:00p
DCA
10:59p
1h 59m
nonstop
DCA
12:50a
STL
3:14a
2h 24m
nonstop
Depart: Mon Jan 23 2017 Return: Tue Jan 24 2017 Trip spans 2 days
Frontier
Frontier
STL
2:20a
IAD
10:51a
8h 31m
1 stop
IAD
12:50p
STL
10:45a
21h 55m
1 stop
Direct flights STL to WAS on American Airlines
Flight # Depart STL Arrive DCA Sun Mon Tue Wed Thu Fri Sat Valid Between
4221 5:45 am 8:56 am Feb 16 - Feb 16
5152 5:45 am 8:48 am Feb 17 - Mar 3
3950 6:10 am 9:23 am Jan 19 - Feb 15
5152 6:25 am 9:30 am Feb 19 - Feb 26
3950 7:30 am 10:43 am Jan 21 - Feb 12
5152 7:30 am 10:33 am Feb 18 - Mar 4
5401 10:24 am 1:18 pm Feb 16 - Mar 3
5465 10:24 am 1:18 pm Jan 22 - Feb 12
5401 11:47 am 2:46 pm Jan 19 - Feb 15
3883 1:25 pm 4:27 pm Jan 19 - Feb 15
4193 1:25 pm 4:27 pm Feb 19 - Feb 26
5500 5:59 pm 9:00 pm Feb 16 - Mar 3
* 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

St. Louis
$203
Destination

Washington
only $203
only $203
Airlines Airline reviews

14 travelers who booked a flight from St. Louis to Washington rated their chosen airlines with an average of 7.7.

Overall
8.3
Boarding
7.7
Crew
9.2
Comfort
7.7
Food
6.9
Entertainment
6.7