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DCA → STLApprox. 1154.38 km11 May 2026Live inventory
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Showing 25
of 98
live flights
American Airlines
AA-5503
20:41
05/11/2026
DCA
Ronald Reagan Washington National Airport
1h 26m
Non-stop
22:07
05/11/2026
STL
St Louis Lambert International Airport
₹15,775
per person
✓ Refundable14 fare options
American Airlines
AA-5454
08:00
05/11/2026
DCA
Ronald Reagan Washington National Airport
1h 26m
Non-stop
09:26
05/11/2026
STL
St Louis Lambert International Airport
₹16,960
per person
✓ Refundable14 fare options
Delta Air Lines
DL-2902
19:38
05/11/2026
IAD
Ronald Reagan Washington National Airport
4h 21m
1 Stop
⏱ ATL · 1h 30mATL Airport
23:59
05/11/2026
STL
St Louis Lambert International Airport
₹18,181
per person
✕ Non-refundable
Delta Air Lines
DL-1308
06:20
05/11/2026
DCA
Ronald Reagan Washington National Airport
6h 3m
1 Stop
⏱ LGA · 3h 0mLGA Airport
12:23
05/11/2026
STL
St Louis Lambert International Airport
₹18,181
per person
✕ Non-refundable3 fare options
Delta Air Lines
DL-5749
13:45
05/11/2026
DCA
Ronald Reagan Washington National Airport
6h 54m
1 Stop
⏱ LGA · 3h 30mLGA Airport
20:39
05/11/2026
STL
St Louis Lambert International Airport
₹18,181
per person
✕ Non-refundable3 fare options
American Airlines
AA-4754
06:00
05/11/2026
DCA
Ronald Reagan Washington National Airport
5h 9m
1 Stop
⏱ LGA · 2h 1mLGA Airport
11:09
05/11/2026
STL
St Louis Lambert International Airport
₹18,281
per person
✓ Refundable14 fare options
American Airlines
AA-1328
19:50
05/11/2026
DCA
Ronald Reagan Washington National Airport
4h 6m
1 Stop
⏱ ORD · 1h 19mORD Airport
23:56
05/11/2026
STL
St Louis Lambert International Airport
₹18,281
per person
✓ Refundable13 fare options
American Airlines
AA-2903
05:55
05/11/2026
DCA
Ronald Reagan Washington National Airport
5h 52m
1 Stop
⏱ ORD · 3h 1mORD Airport
11:47
05/11/2026
STL
St Louis Lambert International Airport
₹18,281
per person
✓ Refundable11 fare options
Delta Air Lines
DL-950
19:30
05/11/2026
DCA
Ronald Reagan Washington National Airport
4h 29m
1 Stop
⏱ ATL · 1h 39mATL Airport
23:59
05/11/2026
STL
St Louis Lambert International Airport
₹18,363
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-850
18:15
05/11/2026
DCA
Ronald Reagan Washington National Airport
5h 44m
1 Stop
⏱ ATL · 2h 50mATL Airport
23:59
05/11/2026
STL
St Louis Lambert International Airport
₹18,363
per person
✕ Non-refundable2 fare options
American Airlines
AA-4393
10:00
05/11/2026
DCA
Ronald Reagan Washington National Airport
5h 12m
1 Stop
⏱ LGA · 1h 45mLGA Airport
15:12
05/11/2026
STL
St Louis Lambert International Airport
₹22,347
per person
✕ Non-refundable5 fare options
American Airlines
AA-629
14:30
05/11/2026
DCA
Ronald Reagan Washington National Airport
5h 29m
1 Stop
⏱ LGA · 2h 1mLGA Airport
19:59
05/11/2026
STL
St Louis Lambert International Airport
₹22,473
per person
✕ Non-refundable6 fare options
American Airlines
AA-4536
08:40
05/11/2026
DCA
Ronald Reagan Washington National Airport
6h 32m
1 Stop
⏱ LGA · 3h 9mLGA Airport
15:12
05/11/2026
STL
St Louis Lambert International Airport
₹22,473
per person
✕ Non-refundable4 fare options
American Airlines
AA-4562
12:21
05/11/2026
DCA
Ronald Reagan Washington National Airport
7h 38m
1 Stop
⏱ LGA · 3h 53mLGA Airport
19:59
05/11/2026
STL
St Louis Lambert International Airport
₹22,473
per person
✕ Non-refundable4 fare options
American Airlines
AA-1686
05:00
05/11/2026
DCA
Ronald Reagan Washington National Airport
3h 30m
1 Stop
⏱ CLT · 1h 0mCLT Airport
08:30
05/11/2026
STL
St Louis Lambert International Airport
₹22,570
per person
✕ Non-refundable14 fare options
American Airlines
AA-4484
17:30
05/11/2026
DCA
Ronald Reagan Washington National Airport
4h 49m
1 Stop
⏱ ORD · 1h 47mORD Airport
22:19
05/11/2026
STL
St Louis Lambert International Airport
₹22,570
per person
✕ Non-refundable🔥 Last 4 seats11 fare options
American Airlines
AA-1518
08:20
05/11/2026
DCA
Ronald Reagan Washington National Airport
5h 2m
1 Stop
⏱ CLT · 2h 11mCLT Airport
13:22
05/11/2026
STL
St Louis Lambert International Airport
₹22,570
per person
✕ Non-refundable11 fare options
American Airlines
AA-5601
13:45
05/11/2026
DCA
Ronald Reagan Washington National Airport
5h 44m
1 Stop
⏱ PHL · 2h 42mPHL Airport
19:29
05/11/2026
STL
St Louis Lambert International Airport
₹22,570
per person
✕ Non-refundable10 fare options
American Airlines
AA-1708
05:05
05/11/2026
BWI
Ronald Reagan Washington National Airport
3h 25m
1 Stop
⏱ CLT · 0h 50mCLT Airport
08:30
05/11/2026
STL
St Louis Lambert International Airport
₹23,459
per person
✕ Non-refundable5 fare options
American Airlines
AA-1925
15:31
05/11/2026
BWI
Ronald Reagan Washington National Airport
3h 59m
1 Stop
⏱ CLT · 1h 15mCLT Airport
19:30
05/11/2026
STL
St Louis Lambert International Airport
₹23,459
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-1762
08:00
05/11/2026
DCA
Ronald Reagan Washington National Airport
1h 20m
Non-stop
09:20
05/11/2026
STL
St Louis Lambert International Airport
₹23,540
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-1764
14:45
05/11/2026
DCA
Ronald Reagan Washington National Airport
1h 20m
Non-stop
16:05
05/11/2026
STL
St Louis Lambert International Airport
₹23,540
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-2445
12:05
05/11/2026
DCA
Ronald Reagan Washington National Airport
1h 25m
Non-stop
13:30
05/11/2026
STL
St Louis Lambert International Airport
₹23,540
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-1196
18:45
05/11/2026
DCA
Ronald Reagan Washington National Airport
1h 25m
Non-stop
20:10
05/11/2026
STL
St Louis Lambert International Airport
₹23,540
per person
✕ Non-refundable5 fare options
Delta Air Lines
DL-2869
06:05
05/11/2026
DCA
Ronald Reagan Washington National Airport
3h 24m
1 Stop
⏱ DTW · 1h 7mDTW Airport
09:29
05/11/2026
STL
St Louis Lambert International Airport
₹23,551
per person
✕ Non-refundable3 fare options
😕 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 11 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.