FFL Helper

FFL Helper / St Louis / Washington

STL → WAS

St Louis to Washington

Compare one-way fares for flights from St Louis to Washington.

Lowest fare $145
Distance 709 mi
Flight time 2h 14m
Airports STL–DCA
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By month: August 2026 from $147 · September 2026 from $145

Price calendar

August 2026

From $147 · up to $169

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27 $168 28 $147 29 $169 30 $159 31 $150

September 2026

From $145

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Upcoming dates

Washington WAS

$145

Sep 01, 6:00am · 2h 14m · 0 stops

STL → DCA · American Airlines

Tickets

Washington WAS

$147

Aug 28, 10:44am · 2h 33m · 0 stops

STL → DCA · American Airlines

Tickets

Washington WAS

$150

Aug 31, 5:57pm · 2h 17m · 0 stops

STL → DCA · American Airlines

Tickets

Washington WAS

$168

Aug 27, 6:00am · 2h 14m · 0 stops

STL → DCA · American Airlines

Tickets

Baltimore BWI

$169

Aug 29, 5:02pm · 16h 22m · 1 stop

STL → BWI · Frontier Airlines

Tickets

About this route

This calendar shows dated one-way fares from St Louis to Washington. Use it to see which days are cheaper before you search tickets.

Flight time and airport codes on this page are for the sample itinerary we have on file. Always confirm the live routing when you book St Louis to Washington.