STL to DCA

St Louis to Washington Dc flight ticket price

Compare fares, departure times, stops and baggage details for this route, then open the full search when you are ready to check current availability and complete booking.

STL
St Louis (STL), United StatesLambert-St Louis Intl
DCA
Washington Dc (DCA), United StatesRonald Reagan National
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Live flights for Mon, 22 Jun 2026

Review fares, stops, timings and baggage. Use Search or View all flights for the complete search result.

Showing flight options for the selected travel date.
Currency: USD
Mon, 22 JunSTL to DCA$268 Tue, 23 JunSTL to DCA Wed, 24 JunSTL to DCA Thu, 25 JunSTL to DCA Fri, 26 JunSTL to DCA Sat, 27 JunSTL to DCA Sun, 28 JunSTL to DCA
Sort By:DepartureDurationArrivalPrice
Delta Air Lines
Delta Air Lines
DL-566
13:39
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
6H :09 M
1 Stop
ATL · 2h 37mAtlanta (ATL), United States
20:48
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$268
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-566
13:39
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
7H :07 M
1 Stop
ATL · 3h 37mAtlanta (ATL), United States
21:46
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$268
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1371
13:59
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
4H :00 M
1 Stop
DTW · 0h 50mDetroit (DTW), United States
18:59
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$268
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-2700
15:57
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
4H :49 M
1 Stop
ATL · 1h 18mAtlanta (ATL), United States
21:46
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$268
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-2700
15:57
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
5H :50 M
1 Stop
ATL · 2h 18mAtlanta (ATL), United States
22:47
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$268
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-2700
15:57
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
6H :47 M
1 Stop
ATL · 3h 18mAtlanta (ATL), United States
23:44
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$268
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-2822
18:10
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
3H :49 M
1 Stop
DTW · 0h 39mDetroit (DTW), United States
22:59
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$268
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-2104
06:00
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
7H :23 M
1 Stop
EWR · 3h 33mNew York (EWR), United States
14:23
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$308
total fare
Non Refundable 4 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-5580
14:57
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
8H :02 M
1 Stop
IAH · 2h 34mHouston (IAH), United States
23:59
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$308
total fare
Non Refundable 1 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-1008
06:00
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
4H :59 M
1 Stop
ORD · 1h 30mChicago (ORD), United States
11:59
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$319
total fare
Non Refundable 1 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-2104
06:00
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
5H :23 M
1 Stop
EWR · 1h 33mNew York (EWR), United States
12:23
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$319
total fare
Non Refundable 1 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-1008
06:00
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
6H :04 M
1 Stop
ORD · 2h 30mChicago (ORD), United States
13:04
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$319
total fare
Non Refundable 2 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-4423
07:22
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
4H :42 M
1 Stop
ORD · 1h 00mChicago (ORD), United States
13:04
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$319
total fare
Non Refundable 1 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-1639
17:29
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
4H :25 M
1 Stop
ORD · 0h 45mChicago (ORD), United States
22:54
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$319
total fare
Non Refundable 2 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1400
10:51
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
6H :39 M
1 Stop
ATL · 3h 14mAtlanta (ATL), United States
18:30
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$331
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-4922
12:35
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
7H :23 M
1 Stop
LGA · 3h 16mNew York (LGA), United States
20:58
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$331
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-566
13:39
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
5H :09 M
1 Stop
ATL · 1h 37mAtlanta (ATL), United States
19:48
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$331
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-4167
15:57
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
6H :29 M
1 Stop
MSP · 2h 20mMinneapolis (MSP), United States
23:26
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$331
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-3185
17:36
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
4H :50 M
1 Stop
MSP · 0h 45mMinneapolis (MSP), United States
23:26
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$331
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1571
09:21
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
7H :04 M
1 Stop
ATL · 3h 33mAtlanta (ATL), United States
17:25
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$361
total fare
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-4167
15:57
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
5H :05 M
1 Stop
MSP · 0h 55mMinneapolis (MSP), United States
22:02
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$361
total fare
Non Refundable 1 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
American Airlines
American Airlines
AA-5015
05:08
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
2H :20 M
Non Stop
08:28
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$363
total fare
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces

Recommended hotels in Washington Dc

Stay options near the arrival city for the same travel date.

Search hotels
Hilton Garden Inn Philadelphia Ft. Washington
3.0Very GoodLive availability

Hilton Garden Inn Philadelphia Ft. Washington

- 530 Pennsylvania Ave, Fort Washington, PA 19034 ,

Free WiFiACBreakfast
Room availability is checked live
$166per night+ taxes if applicable
View Rooms

1 Night • 3 Star

American Airlines
American Airlines
AA-5582
17:00
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
2H :15 M
Non Stop
20:15
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$363
total fare
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
American Airlines
American Airlines
AA-2731
18:13
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
4H :41 M
1 Stop
CLT · 1h 14mCharlotte (CLT), United States
23:54
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$372
total fare
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
United Airlines
United Airlines
UA-1008
06:00
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
7H :22 M
1 Stop
ORD · 3h 45mChicago (ORD), United States
14:22
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$399
total fare
Non Refundable 5 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
American Airlines
American Airlines
AA-2720
11:18
2026-06-22
St Louis (STL)United StatesLambert-St Louis Intl
4H :42 M
1 Stop
PHL · 1h 08mPhiladelphia (PHL), United States
17:00
2026-06-22
WASHINGTON DC (DCA)United StatesRonald Reagan National
$406
total fare
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
View all flights
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Fare highlights

Selected flight highlights for 22 Jun 2026.

Open full search
Lowest fare $268 Delta Air Lines 13:39
Earliest departure $363 American Airlines 05:08
Shortest duration $363 American Airlines 17:00
Night 00:00-05:59 $363 American Airlines at 05:08
Morning 06:00-11:59 $308 United Airlines at 06:00
Afternoon 12:00-17:59 $268 Delta Air Lines at 13:39
Evening 18:00-23:59 $268 Delta Air Lines at 18:10

St Louis to Washington Dc route details

St Louis (STL)

Lambert-St Louis Intl

United States

GMT -6

Latitude: 38.748697

Longitude: -90.370003

Washington Dc (DCA)

Ronald Reagan National

United States

GMT -5

Latitude: 38.8521

Longitude: -77.037697

Distance: St Louis (STL), United States to Washington Dc (DCA), United States - 1,154.38 km
Flights shown for 22 Jun 2026. View all flights opens the complete search result.

St Louis to Washington Dc - what to expect when booking

The STL to DCA cards above show selected flight options. Airline prices and seat availability can move quickly, so the final fare is rechecked in the booking flow.

Approx route distance: 1,154.38 km.

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More flights from St Louis (STL)23 routes
St Louis → Atlanta
STL → ATL
St Louis → Boston
STL → BOS
St Louis → Burlington
STL → BRL
St Louis → Cancun
STL → CUN
St Louis → Cape Girardeau
STL → CGI
St Louis → Charlotte
STL → CLT
St Louis → Chicago
STL → MDW
St Louis → Covington Ky
STL → CVG
St Louis → Cleveland
STL → CLE
St Louis → Columbus
STL → CMH
St Louis → Dallas
STL → DAL
St Louis → Decatur
STL → DEC
St Louis → Denver
STL → DEN
St Louis → Detroit Mi
STL → DTW
St Louis → Fort Lauderdale
STL → FLL
St Louis → Fort Leonard Wood
STL → TBN
St Louis → Fort Myers
STL → RSW
St Louis → Dallas
STL → DFW
St Louis → Grand Rapids
STL → GRR
St Louis → Houston
STL → IAH
St Louis → Houston
STL → HOU
St Louis → Jonesboro
STL → JBR
St Louis → Kansas City
STL → MCI
More flights from Washington Dc (DCA)23 routes
Washington Dc → Akron/canton
DCA → CAK
Washington Dc → Albany
DCA → ALB
Washington Dc → Atlanta
DCA → ATL
Washington Dc → Augusta
DCA → AGS
Washington Dc → Austin
DCA → AUS
Washington Dc → Bangor
DCA → BGR
Washington Dc → Birmingham
DCA → BHM
Washington Dc → Boston
DCA → BOS
Washington Dc → Buffalo Ny
DCA → BUF
Washington Dc → Burlington
DCA → BTV
Washington Dc → Charleston
DCA → CHS
Washington Dc → Charlotte
DCA → CLT
Washington Dc → Chattanooga
DCA → CHA
Washington Dc → Chicago
DCA → ORD
Washington Dc → Covington Ky
DCA → CVG
Washington Dc → Cleveland
DCA → CLE
Washington Dc → Columbia
DCA → CAE
Washington Dc → Columbus
DCA → CMH
Washington Dc → Dayton Oh
DCA → DAY
Washington Dc → Denver
DCA → DEN
Washington Dc → Des Moines
DCA → DSM
Washington Dc → Detroit Mi
DCA → DTW
Washington Dc → Fayetteville
DCA → FAY
Frequently asked questions - St Louis to Washington Dc flights
Yes, booking flights in advance helps you secure cheap flight tickets. Comparing air ticket prices 3–4 weeks early gives you better visibility of airline timings, baggage policies, and fare rules before high-demand periods push prices up.
The approximate direct air distance between St Louis (STL) and Washington Dc (DCA) is 1,154.38 km. The actual flight duration and route path vary depending on airline schedules and wind conditions.
Non-stop flight availability depends on the airline schedule and departure date. You can filter the live search results by stops to view direct flights, one-stop connections, and transit flights instantly.
Airline seat inventory and airfares change dynamically in real-time. Selecting 'Book Now' runs a live fare verification check to ensure you get the most accurate price before final booking confirmation.
Yes, you can easily compare flights for nearby dates. Select any date on the date calendar strip to refresh the fares, compare air ticket pricing, and choose the most budget-friendly travel day.