Cheap flight from Washington D.C. to St. Louis from AED 315
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Flights from Washington D.C. to St. Louis
Cheap flight deals from Washington D.C. to St. Louis
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
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Round-trip
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One way
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Cheapest nonstop
DCA 08:002h 10mNonstopSTL 09:10Washington D.C. - St. Louis | Sat, May 31 | Southwest Airlines
STL 13:502h 5mNonstopDCA 16:55St. Louis - Washington D.C. | Sat, May 31 | Southwest AirlinesAED 652 AED 78517% OFF17% OFFAED 785 AED 652 -
DCA 10:202h 32mNonstopSTL 11:52Washington D.C. - St. Louis | Sat, May 24 | American Airlines
STL 10:251h 59mNonstopDCA 13:24St. Louis - Washington D.C. | Sun, May 25 | American AirlinesAED 674 AED 78514% OFF14% OFFAED 785 AED 674 -
DCA 12:352h 15mNonstopSTL 13:50Washington D.C. - St. Louis | Sat, May 24 | Southwest Airlines
STL 15:552hNonstopDCA 18:55St. Louis - Washington D.C. | Sun, May 25 | Southwest AirlinesAED 674 AED 78514% OFF14% OFFAED 785 AED 674
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IAD 11:106h 15m1 stopsSTL 16:25Washington D.C. - St. Louis | Sat, Jun 21 | Delta Air Lines
STL 17:544h 3m1 stopsDCA 22:57St. Louis - Washington D.C. | Sat, Jun 28 | Delta Air LinesAED 66016% OFFAED 785 AED 660 -
IAD 06:004h1 stopsSTL 09:00Washington D.C. - St. Louis | Sun, May 25 | Delta Air Lines
STL 15:406h 9m1 stopsIAD 22:49St. Louis - Washington D.C. | Sun, May 25 | Delta Air LinesAED 66116% OFFAED 785 AED 661
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IAD 10:095h 26m1 stopsSTL 14:35Washington D.C. - St. Louis | Sat, May 24 | Delta Air Lines
STL 06:004h1 stopsDCA 11:00St. Louis - Washington D.C. | Sun, May 25 | Delta Air LinesAED 66316% OFFAED 785 AED 663
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DCA 06:004h1 stopsSTL 09:00Washington D.C. - St. Louis | Fri, May 30 | Delta Air Lines
STL 15:407h 3m1 stopsDCA 23:43St. Louis - Washington D.C. | Fri, May 30 | Delta Air LinesAED 67514% OFFAED 785 AED 675
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IAD 06:004h1 stopsSTL 09:00Washington D.C. - St. Louis | Fri, Jun 6 | Delta Air Lines
STL 19:104h 22m1 stopsIAD 00:32St. Louis - Washington D.C. | Sun, Jun 8 | Delta Air LinesAED 67514% OFFAED 785 AED 675
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DCA 06:054h 32m1 stopsSTL 09:37Washington D.C. - St. Louis | Thu, Jun 12 | Delta Air Lines
STL 15:425h 4m1 stopsDCA 21:46St. Louis - Washington D.C. | Sun, Jun 15 | Delta Air LinesAED 67514% OFFAED 785 AED 675
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IAD 06:004h 43m1 stopsSTL 09:43Washington D.C. - St. Louis | Fri, Jun 13 | Delta Air Lines
STL 06:004h 54m1 stopsIAD 11:54St. Louis - Washington D.C. | Sun, Jun 15 | Delta Air LinesAED 67514% OFFAED 785 AED 675
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WAS 13:0017h 25m1 stopsSTL Invalid DateWashington D.C. - St. Louis | Sun, May 11 | Normal Airline
STL 15:006hNonstopWAS 16:00St. Louis - Washington D.C. | Tue, May 13 | Normal AirlineFind More FlightsFind More Flights
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Cheapest nonstop
DCA 19:592h 20mNonstopSTL 21:19Washington D.C. - St. Louis | Tue, Jul 1 | American AirlinesAED 335 AED 63948% OFF48% OFFAED 639 AED 335
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DCA 13:542h 17mNonstopSTL 15:11Washington D.C. - St. Louis | Sun, May 25 | American AirlinesAED 335 AED 63948% OFF48% OFFAED 639 AED 335
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DCA 07:0027h 9m1 stopsSTL 09:09Washington D.C. - St. Louis | Tue, May 20 | Frontier AirlinesAED 315 AED 63951% OFF51% OFFAED 639 AED 315 -
DCA 17:294h 1m1 stopsSTL 20:30Washington D.C. - St. Louis | Sat, Jul 5 | Delta Air LinesAED 33348% OFFAED 639 AED 333
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DCA 06:007h 4m1 stopsSTL 12:04Washington D.C. - St. Louis | Sun, May 25 | Delta Air LinesAED 33448% OFFAED 639 AED 334
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IAD 06:007h 4m1 stopsSTL 12:04Washington D.C. - St. Louis | Wed, May 28 | Delta Air LinesAED 33448% OFFAED 639 AED 334
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DCA 10:195h 18m1 stopsSTL 14:37Washington D.C. - St. Louis | Fri, Jul 4 | Delta Air LinesAED 33548% OFFAED 639 AED 335
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DCA 06:007h 4m1 stopsSTL 12:04Washington D.C. - St. Louis | Wed, Jun 4 | Delta Air LinesAED 34346% OFFAED 639 AED 343
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IAD 06:004h 43m1 stopsSTL 09:43Washington D.C. - St. Louis | Sun, Jun 15 | Delta Air LinesAED 34446% OFFAED 639 AED 344
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IAD 13:204h 15m1 stopsSTL 16:35Washington D.C. - St. Louis | Sat, May 24 | Delta Air LinesAED 55014% OFFAED 639 AED 550
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WAS 13:0017h 25m1 stopsSTL Invalid DateWashington D.C. - St. Louis | Sun, May 11 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Frequently Asked Questions
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When are flight tickets from Washington D.C. (WAS) to St. Louis (STL) the cheapest?
Airlines adjust prices for flights from Washington D.C. to St. Louis based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from Washington D.C. (WAS) to St. Louis (STL) cost?
According to Trip.com's data, the lowest price is around AED 1,409. -
How long does it take to fly from Washington D.C. (WAS) to St. Louis (STL)?
It takes about 2 hours 29 minutes to fly from Washington D.C. (WAS) to St. Louis (STL). -
What are the most popular airlines that fly from Washington D.C. (WAS) to St. Louis (STL)?
Airlines with flights from Washington D.C. (WAS) to St. Louis (STL): Southwest Airlines, American Airlines, United Airlines, Copa Airlines, avianca and Lufthansa. -
How many airports are there in St. Louis (STL)?
There are 2 airport(s) near St. Louis (STL): St. Louis Downtown Airport and St. Louis Lambert International Airport.
How to find a cheap flight from Washington D.C. to St. Louis
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Washington D.C. to St. Louis. Book your flights at the right time and save more.
Being flexible with your dates to get the cheapest Washington D.C. to St. Louis ticket.
Tap "Date" on flight search bar to scan through the calender for Washington D.C. to St. Louis airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Tue, Jul 1 at AED 335 for one-way flights.
Compare cheap Washington D.C. to St. Louis flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Washington D.C. to St. Louis. The cheapest airline operating is American Airlines.
Set up a Price Alert
By setting up a Price Alert for your Washington D.C. to St. Louis route, you can easily track the price of your airline tickets from without manually checking every day.
Don't miss cheap Washington D.C. to St. Louis flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights. If registering a free membership, you can receive more deals for your flights.
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from Washington D.C. to St. Louis to get exclusive deals for you.
Flight Info | Washington D.C. to St. Louis
| Cheapest one-way flight price | AED 314 |
|---|---|
| Cheapest return ticket price | AED 651 |
| Off-season for travel | March |
| Peak season for travel | June |
| Flight distance | 1,139.76 km |
| Average flight time | 2 hours 29 minutes |
| Popular airline | Delta Air Lines |
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