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Find Flight Deals from St Louis Lambert-St Louis to Washington Dulles Intl (STL - IAD)

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

Book cheap flights from St Louis Lambert-St Louis to Washington Dulles Intl

(Round-trip)
Depart: Sun Jan 4 2015 Return: Tue Jan 6 2015 Trip spans 3 days
Frontier
Frontier
STL
9:25a
IAD
11:25a
2h 00m
nonstop
IAD
1:05p
STL
3:25p
2h 20m
nonstop
Depart: Tue Dec 30 2014 Return: Sun Jan 4 2015 Trip spans 6 days
Frontier
Frontier
STL
9:25a
IAD
11:25a
2h 00m
nonstop
IAD
5:25p
STL
7:45p
2h 20m
nonstop
Depart: Thu Jan 1 2015 Return: Sun Jan 4 2015 Trip spans 4 days
Multiple Airlines
Multiple Airlines
STL
1:13p
IAD
3:10p
1h 57m
nonstop
IAD
5:25p
STL
7:45p
2h 20m
nonstop
Depart: Wed Dec 31 2014 Return: Sun Jan 4 2015 Trip spans 5 days
Multiple Airlines
Multiple Airlines
STL
2:45a
IAD
7:00a
4h 15m
1 stop
IAD
5:25p
STL
7:45p
2h 20m
nonstop
Depart: Thu Dec 25 2014 Return: Sun Jan 4 2015 Trip spans 11 days
Multiple Airlines
Multiple Airlines
STL
12:12p
IAD
5:39p
5h 27m
1 stop
IAD
5:25p
STL
7:45p
2h 20m
nonstop
Depart: Fri Dec 26 2014 Return: Sun Jan 4 2015 Trip spans 10 days
Multiple Airlines
Multiple Airlines
STL
2:45a
IAD
7:00a
4h 15m
1 stop
IAD
5:25p
STL
7:45p
2h 20m
nonstop
Depart: Fri Jan 2 2015 Return: Tue Jan 6 2015 Trip spans 5 days
Multiple Airlines
Multiple Airlines
STL
8:59a
IAD
10:57a
1h 58m
nonstop
IAD
1:05p
STL
3:25p
2h 20m
nonstop
Depart: Sun Dec 21 2014 Return: Sun Dec 28 2014 Trip spans 8 days
Frontier
Frontier
STL
9:25a
IAD
11:25a
2h 00m
nonstop
IAD
5:25p
STL
7:45p
2h 20m
nonstop
Depart: Tue Dec 23 2014 Return: Sun Dec 28 2014 Trip spans 6 days
Frontier
Frontier
STL
9:25a
IAD
11:25a
2h 00m
nonstop
IAD
5:25p
STL
7:45p
2h 20m
nonstop
Depart: Sun Dec 28 2014 Return: Sun Jan 4 2015 Trip spans 8 days
Frontier
Frontier
STL
9:25a
IAD
11:25a
2h 00m
nonstop
IAD
5:25p
STL
7:45p
2h 20m
nonstop
Depart: Sat Jan 10 2015 Return: Tue Jan 13 2015 Trip spans 4 days
American Airlines
American Airlines
STL
11:27a
IAD
5:53p
6h 26m
1 stop
IAD
1:25a
STL
7:55a
6h 30m
1 stop
Depart: Tue Jan 13 2015 Return: Tue Jan 20 2015 Trip spans 8 days
American Airlines
American Airlines
STL
11:27a
IAD
5:53p
6h 26m
1 stop
IAD
8:07a
STL
2:13p
6h 06m
1 stop
Depart: Wed Jan 14 2015 Return: Tue Jan 20 2015 Trip spans 7 days
American Airlines
American Airlines
STL
11:27a
IAD
5:53p
6h 26m
1 stop
IAD
8:07a
STL
2:13p
6h 06m
1 stop
Depart: Sat Jan 17 2015 Return: Tue Jan 20 2015 Trip spans 4 days
American Airlines
American Airlines
STL
11:27a
IAD
5:53p
6h 26m
1 stop
IAD
8:07a
STL
2:13p
6h 06m
1 stop
Depart: Tue Jan 27 2015 Return: Sat Jan 31 2015 Trip spans 5 days
American Airlines
American Airlines
STL
11:27a
IAD
5:53p
6h 26m
1 stop
IAD
4:01a
STL
10:04a
6h 03m
1 stop
Depart: Mon Dec 22 2014 Return: Sun Jan 4 2015 Trip spans 14 days
Multiple Airlines
Multiple Airlines
STL
8:42a
IAD
3:19p
6h 37m
1 stop
IAD
5:25p
STL
7:45p
2h 20m
nonstop
Depart: Wed Dec 24 2014 Return: Sun Jan 4 2015 Trip spans 12 days
Multiple Airlines
Multiple Airlines
STL
1:30a
IAD
6:25a
4h 55m
1 stop
IAD
5:25p
STL
7:45p
2h 20m
nonstop
Depart: Tue Jan 6 2015 Return: Wed Jan 7 2015 Trip spans 2 days
United
United
STL
3:09a
IAD
5:09a
2h 00m
nonstop
IAD
7:30a
STL
9:52a
2h 22m
nonstop
Depart: Sun Jan 11 2015 Return: Sat Jan 17 2015 Trip spans 7 days
Delta
Delta
STL
8:02a
IAD
2:48p
6h 46m
1 stop
IAD
2:00a
STL
6:46a
4h 46m
1 stop
Depart: Fri Mar 13 2015 Return: Mon Mar 16 2015 Trip spans 4 days
US Airways
US Airways
STL
3:50a
IAD
8:00a
4h 10m
1 stop
IAD
5:15a
STL
12:42p
7h 27m
1 stop
Change your search
Direct flights STL to IAD on United
Flight # Depart STL Arrive IAD Sun Mon Tue Wed Thu Fri Sat Valid Between
3411 8:00 am 11:00 am Jan 11 - Jan 11
3411 8:00 am 11:00 am Jan 25 - Feb 8
3361 8:09 am 11:09 am Jan 14 - Jan 16
3361 8:09 am 11:09 am Jan 21 - Jan 21
3419 8:09 am 11:09 am Jan 8 - Jan 8
3419 8:09 am 11:09 am Jan 22 - Jan 29
3423 8:09 am 11:09 am Jan 23 - Jan 23
3423 8:09 am 11:09 am Jan 12 - Jan 12
3426 8:09 am 11:09 am Jan 7 - Jan 7
3426 8:09 am 11:09 am Jan 15 - Jan 15
5287 8:09 am 11:09 am Jan 26 - Jan 26
5287 8:09 am 11:09 am Jan 9 - Jan 9
5287 8:09 am 11:09 am Jan 6 - Feb 10
5287 8:09 am 11:09 am Jan 19 - Jan 19
3411 8:17 am 11:15 am Jan 3 - Jan 3
3411 8:17 am 11:15 am Dec 28 - Jan 5
3411 8:17 am 11:15 am Dec 23 - Dec 27
3411 8:17 am 11:15 am Dec 25 - Dec 30
3411 8:30 am 11:28 am Dec 31 - Dec 31
3420 10:06 am 1:03 pm Jan 18 - Jan 18
5287 10:06 am 1:03 pm Jan 11 - Jan 11
5287 10:06 am 1:03 pm Jan 25 - Jan 25
3420 11:30 am 2:28 pm Jan 1 - Jan 1
3420 11:30 am 2:28 pm Dec 22 - Dec 29
3420 11:30 am 2:28 pm Dec 19 - Jan 2
3420 11:30 am 2:28 pm Dec 30 - Dec 30
6124 11:30 am 2:28 pm Jan 5 - Jan 5
3420 11:35 am 2:33 pm Dec 28 - Dec 28
3420 11:35 am 2:33 pm Jan 4 - Jan 4
3420 11:44 am 2:41 pm Jan 12 - Jan 12
3420 11:44 am 2:41 pm Jan 26 - Jan 29
3420 11:44 am 2:41 pm Jan 6 - Jan 20
3420 11:44 am 2:41 pm Jan 21 - Jan 21
3420 11:44 am 2:41 pm Jan 8 - Jan 23
6124 11:44 am 2:41 pm Jan 19 - Jan 19
3370 1:59 pm 4:57 pm Dec 26 - Jan 5
3370 1:59 pm 4:57 pm Dec 30 - Dec 30
4099 1:59 pm 4:57 pm Jan 3 - Jan 3
6124 1:59 pm 4:57 pm Dec 27 - Dec 27
3370 2:15 pm 5:12 pm Jan 10 - Feb 7
3370 2:22 pm 5:19 pm Jan 6 - Feb 11
3364 6:13 pm 9:10 pm Dec 25 - Dec 27
3370 6:13 pm 9:10 pm Jan 3 - Jan 3
3411 6:13 pm 9:10 pm Jan 1 - Jan 1
4202 6:13 pm 9:10 pm Dec 30 - Dec 30
4202 6:13 pm 9:10 pm Dec 22 - Dec 26
4202 6:13 pm 9:10 pm Dec 28 - Dec 28
4202 6:13 pm 9:10 pm Jan 2 - Jan 5
5939 6:13 pm 9:10 pm Dec 29 - Dec 29
3370 6:17 pm 9:10 pm Jan 11 - Jan 11
3370 6:17 pm 9:10 pm Jan 25 - Jan 25
3411 6:17 pm 9:10 pm Jan 10 - Feb 7
3411 6:17 pm 9:10 pm Jan 19 - Jan 30
3411 6:17 pm 9:10 pm Jan 18 - Jan 18
3411 6:17 pm 9:10 pm Jan 12 - Jan 12
3411 6:17 pm 9:10 pm Jan 6 - Jan 16
Airports
Origin

St Louis
$135
Destination

Washington
$135