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DCA → STLApprox. 1154.38 km08 May 2026Live inventory
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Showing 25
of 134
live flights
Delta Air Lines
DL-1592
10:28
05/08/2026
BWI
Ronald Reagan Washington National Airport
5h 47m
1 Stop
⏱ ATL · 3h 13mATL Airport
16:15
05/08/2026
STL
St Louis Lambert International Airport
₹16,219
per person
✕ Non-refundable
Southwest Airlines
WN-3853
18:00
05/08/2026
BWI
Ronald Reagan Washington National Airport
2h 55m
1 Stop
⏱ CMH · 1h 0mCMH Airport
20:55
05/08/2026
STL
St Louis Lambert International Airport
₹18,071
per person
✓ Refundable4 fare options
Southwest Airlines
WN-1187
13:20
05/08/2026
BWI
Ronald Reagan Washington National Airport
4h 50m
1 Stop
⏱ MCO · 0h 45mMCO Airport
18:10
05/08/2026
STL
St Louis Lambert International Airport
₹18,071
per person
✓ Refundable4 fare options
Southwest Airlines
WN-581
10:05
05/08/2026
BWI
Ronald Reagan Washington National Airport
5h 5m
1 Stop
⏱ MCO · 1h 5mMCO Airport
15:10
05/08/2026
STL
St Louis Lambert International Airport
₹18,071
per person
✕ Non-refundable
American Airlines
AA-5454
08:00
05/08/2026
DCA
Ronald Reagan Washington National Airport
1h 26m
Non-stop
09:26
05/08/2026
STL
St Louis Lambert International Airport
₹18,364
per person
✕ Non-refundable14 fare options
Delta Air Lines
DL-801
11:50
05/08/2026
BWI
Ronald Reagan Washington National Airport
4h 25m
1 Stop
⏱ ATL · 1h 53mATL Airport
16:15
05/08/2026
STL
St Louis Lambert International Airport
₹18,439
per person
✕ Non-refundable
Southwest Airlines
WN-1762
08:00
05/08/2026
DCA
Ronald Reagan Washington National Airport
1h 20m
Non-stop
09:20
05/08/2026
STL
St Louis Lambert International Airport
₹18,731
per person
✕ Non-refundable6 fare options
American Airlines
AA-5541
13:46
05/08/2026
DCA
Ronald Reagan Washington National Airport
1h 27m
Non-stop
15:13
05/08/2026
STL
St Louis Lambert International Airport
₹19,004
per person
✕ Non-refundable14 fare options
Southwest Airlines
WN-1753
15:35
05/08/2026
DCA
Ronald Reagan Washington National Airport
3h 5m
Non-stop
18:40
05/08/2026
STL
St Louis Lambert International Airport
₹19,226
per person
✕ Non-refundable🔥 Last 4 seats5 fare options
Southwest Airlines
WN-1333
06:25
05/08/2026
BWI
Ronald Reagan Washington National Airport
1h 20m
Non-stop
07:45
05/08/2026
STL
St Louis Lambert International Airport
₹19,256
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-1335
09:30
05/08/2026
BWI
Ronald Reagan Washington National Airport
1h 20m
Non-stop
10:50
05/08/2026
STL
St Louis Lambert International Airport
₹19,256
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-987
18:20
05/08/2026
BWI
Ronald Reagan Washington National Airport
1h 25m
Non-stop
19:45
05/08/2026
STL
St Louis Lambert International Airport
₹19,256
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-1337
22:00
05/08/2026
BWI
Ronald Reagan Washington National Airport
1h 25m
Non-stop
23:25
05/08/2026
STL
St Louis Lambert International Airport
₹19,256
per person
✕ Non-refundable5 fare options
American Airlines
AA-1686
05:00
05/08/2026
DCA
Ronald Reagan Washington National Airport
3h 30m
1 Stop
⏱ CLT · 1h 0mCLT Airport
08:30
05/08/2026
STL
St Louis Lambert International Airport
₹19,272
per person
✕ Non-refundable9 fare options
Delta Air Lines
DL-410
06:00
05/08/2026
DCA
Ronald Reagan Washington National Airport
3h 44m
1 Stop
⏱ ATL · 1h 15mATL Airport
09:44
05/08/2026
STL
St Louis Lambert International Airport
₹19,272
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-950
19:30
05/08/2026
DCA
Ronald Reagan Washington National Airport
4h 29m
1 Stop
⏱ ATL · 1h 39mATL Airport
23:59
05/08/2026
STL
St Louis Lambert International Airport
₹19,272
per person
✕ Non-refundable
American Airlines
AA-4754
06:00
05/08/2026
DCA
Ronald Reagan Washington National Airport
5h 13m
1 Stop
⏱ LGA · 2h 5mLGA Airport
11:13
05/08/2026
STL
St Louis Lambert International Airport
₹19,272
per person
✕ Non-refundable9 fare options
American Airlines
AA-5601
13:45
05/08/2026
DCA
Ronald Reagan Washington National Airport
5h 44m
1 Stop
⏱ PHL · 2h 42mPHL Airport
19:29
05/08/2026
STL
St Louis Lambert International Airport
₹19,272
per person
✕ Non-refundable8 fare options
Delta Air Lines
DL-850
18:15
05/08/2026
DCA
Ronald Reagan Washington National Airport
5h 44m
1 Stop
⏱ ATL · 2h 50mATL Airport
23:59
05/08/2026
STL
St Louis Lambert International Airport
₹19,272
per person
✕ Non-refundable
American Airlines
AA-2903
05:55
05/08/2026
DCA
Ronald Reagan Washington National Airport
5h 52m
1 Stop
⏱ ORD · 3h 1mORD Airport
11:47
05/08/2026
STL
St Louis Lambert International Airport
₹19,272
per person
✕ Non-refundable8 fare options
Delta Air Lines
DL-5749
13:45
05/08/2026
DCA
Ronald Reagan Washington National Airport
6h 54m
1 Stop
⏱ LGA · 3h 30mLGA Airport
20:39
05/08/2026
STL
St Louis Lambert International Airport
₹19,272
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-3826
06:00
05/08/2026
IAD
Ronald Reagan Washington National Airport
3h 29m
1 Stop
⏱ DTW · 1h 14mDTW Airport
09:29
05/08/2026
STL
St Louis Lambert International Airport
₹19,272
per person
✕ Non-refundable
Delta Air Lines
DL-2127
06:08
05/08/2026
IAD
Ronald Reagan Washington National Airport
3h 36m
1 Stop
⏱ ATL · 1h 5mATL Airport
09:44
05/08/2026
STL
St Louis Lambert International Airport
₹19,272
per person
✕ Non-refundable
Delta Air Lines
DL-1444
12:37
05/08/2026
IAD
Ronald Reagan Washington National Airport
3h 38m
1 Stop
⏱ ATL · 1h 1mATL Airport
16:15
05/08/2026
STL
St Louis Lambert International Airport
₹19,272
per person
✕ Non-refundable
Delta Air Lines
DL-2902
19:38
05/08/2026
IAD
Ronald Reagan Washington National Airport
4h 21m
1 Stop
⏱ ATL · 1h 30mATL Airport
23:59
05/08/2026
STL
St Louis Lambert International Airport
₹19,272
per person
✕ Non-refundable
😕 No flights match your filters.
Washington DC (DCA)
📍 Ronald Reagan Washington National Airport
🌍 United States
🕐 GMT -5
📐 Latitude: 38.8521
📐 Longitude: -77.037697
St. Louis (STL)
📍 St Louis Lambert International Airport
🌍 United States
🕐 GMT -6
📐 Latitude: 38.748697
📐 Longitude: -90.370003
✈ Distance: Washington DC,USA to St. Louis,USA — 1154.38 km
📅 Results on this page are loaded for 08 May 2026. Click View all flights for the complete live search.
Washington DC to St. Louis — what to expect when booking
The DCA–STL route is served by multiple carriers throughout the year.
Fares on this route can move quickly — a price available now may not be there 30 minutes later.
If your dates are flexible, try shifting your departure by a day or two using the date strip above.
Mid-week departures often show lower base fares compared to weekend starts on many routes.
The distance between Washington DC,USA and St. Louis,USA is approximately
1154.38 km.
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❓ Frequently asked questions — Washington DC to St. Louis flights
Generally yes — fares on most routes are most competitive around 4–6 weeks before departure. Booking earlier usually means better availability and a lower base fare when your dates are fixed.
The straight-line distance between Washington DC,USA (DCA) and St. Louis,USA (STL) is approximately 1154.38 km. Actual flying distance may vary slightly depending on routing.
Non-stop availability on this route varies by airline schedule and season. Use the filters below to quickly check whether direct options are available on your selected date.
Mid-week departures often show lower prices than weekend travel on many routes. Use the date strip above to compare nearby days quickly.