Cheap Flights from Washington to St. Louis
Cheap Flights from Washington to St. Louis
Looking for cheap flights from Washington to St. Louis? PointsYeah scans award availability across major airline and bank transfer programs in one place, so travelers can compare the lowest points and cash routes faster. Instead of searching each airline separately, users can see pricing from programs like Chase, Amex, Capital One, Citi, and Bilt side by side.
Award prices from Washington to St. Louis vary by season, cabin, and date, but available award flights can start around 4,500 points one way, with premium cabins available at higher mileage levels. The live search above allows filtering by cabin, airline, stops, or maximum points to find the best award flights from Washington to St. Louis for specific travel dates.
2026-11-05
DCA - STL
Economy | Non stop | 1 left
From 4,500 Pts + $25.6
2026-11-07
DCA - STL
Economy | Non stop | 8 left
From 4,500 Pts + $25.6
2026-11-08
DCA - STL
Economy | Non stop | 9+ left
From 4,500 Pts + $25.6
2026-11-10
DCA - STL
Economy | Non stop | 9+ left
From 4,500 Pts + $25.6
2026-11-11
DCA - STL
Economy | Non stop | 3 left
From 4,500 Pts + $25.6
2026-11-12
DCA - STL
Economy | Non stop | 6 left
From 4,500 Pts + $25.6
Washington to St. Louis flight facts
Distance
706 mi
1,136 km in a straight line
Estimated flight time
about 2h
In the air, for the straight-line distance
Time difference
−1h
St. Louis is 1 hour behind Washington.
Airports in Washington
DCA · Ronald Reagan Washington National
IAD · Washington Dulles Intl
Airports in St. Louis
STL · St Louis Lambert Intl
Nearby airport alternatives
Flights Baltimore - St. Louis · Baltimore is 36 mi from Washington
Flights Philadelphia - St. Louis · Philadelphia is 126 mi from Washington
Premium cabin flights from Washington to St. Louis
Premium cabin
2026-11-06
DCA - STL
First | Non stop | 3 left
From 9,000 Pts + $25.6
Premium cabin
2026-11-09
DCA - STL
First | Non stop | 3 left
From 9,000 Pts + $25.6
Premium cabin
2026-11-14
DCA - STL
First | Non stop | 7 left
From 9,000 Pts + $25.6
Premium cabin
2026-11-15
DCA - STL
First | Non stop | 6 left
From 9,000 Pts + $25.6
Premium cabin
2026-11-17
DCA - STL
First | Non stop | 6 left
From 9,000 Pts + $25.6
Premium cabin
2026-11-18
DCA - STL
First | Non stop | 1 left
From 9,000 Pts + $25.6
Selected hotels for your next stay
St. Louis, MO (USA)
Le Méridien St. Louis Clayton
From Pts or $136
St. Louis, MO (USA)
The Ritz-Carlton, St. Louis
From Pts or $567
Frequently Asked Questions
The cheapest route from Washington to St. Louis depends on award space, transfer bonuses, and travel dates. PointsYeah compares bank and airline programs in one place so you can find the best points and cash combinations faster.
Yes. Transferable points from Chase, Amex, Capital One, Citi, and Bilt can often be moved to airline partners for flights from Washington to St. Louis.
Yes. Searching metro codes when available helps compare nearby airport combinations for flights from Washington to St. Louis.
Washington and St. Louis are about 706 miles (1,136 km) apart in a straight line.
Flying the 706-mile straight-line distance takes about 2h in the air, estimated from typical cruising speed. Actual travel time depends on the routing; itineraries with connections take longer.
St. Louis is 1 hour behind Washington.
Departures from Washington: Ronald Reagan Washington National (DCA), Washington Dulles Intl (IAD). Arrivals in St. Louis: St Louis Lambert Intl (STL).
Travelers searching this route also look at other popular routes into St. Louis, plus the return trip when we track it. Fares and award space change daily.
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