St Louis to Washington
STLIAD
Fly from St Louis to Washington starting at SAR 233 with F9.
Best fare available on Jun 23, 2026.
Limited seats. Better plans. Book before it's gone.
St Louis to Washington cheapest flights this week
24 Apr
F9
16:59STL
11:27IAD
1 StopSAR 439VIEW DEAL
28 Apr
UA
06:30STL
15:48IAD
1 StopSAR 953VIEW DEAL
29 Apr
F9
16:59STL
15:35IAD
1 StopSAR 360VIEW DEAL
30 Apr
F9
11:21STL
22:42IAD
1 StopSAR 338VIEW DEAL
1 May
F9
20:23STL
13:54IAD
1 StopSAR 578VIEW DEAL
6 Jun
F9
17:27STL
03:09IAD
1 StopSAR 338VIEW DEAL
23 Jun
F9
18:31STL
14:22IAD
1 StopSAR 233VIEW DEAL
25 Jun
F9
18:31STL
21:31IAD
1 StopSAR 428VIEW DEAL
St Louis to Washington monthly flight fare trend
Apr
from SAR 338
May
from SAR 578
Jun
from SAR 233
Jul
No flights
Aug
No flights
Sep
No flights
Airport Details
Origin
St Louis
St. Louis Lambert International Airport (STL)
St Louis, STL
Zone
Chicago
Elev
618 ft
Destination
Washington
Washington Dulles International Airport (IAD)
Dulles, IAD
Zone
New York
Elev
312 ft
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