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WAS - STL

$68 Find cheap flights from Washington, D.C. to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to St. Louis departing on 5/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Mon 6/3
Mon 6/10

Search hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to St. Louis, as well as popular online travel agencies
In the last 7 days travelers have searched 43,693,958 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Washington, D.C. to St. Louis (WAS-STL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:12 pm - 5:29 pmBWI-STL
20h 17m1 stop
10:34 am - 7:10 pmSTL-BWI
7h 36m1 stop
$137Spirit Airlines
Find Deal
Wed, May 15 - Tue, May 21
8:15 pm - 7:07 amBWI-STL
11h 52m1 stop
8:02 pm - 12:39 pmSTL-BWI
15h 37m1 stop
$139Frontier
Find Deal
Sat, Jun 8 - Wed, Jun 12
5:45 am - 10:57 amBWI-STL
6h 12m1 stop
7:44 pm - 7:47 amSTL-BWI
11h 03m1 stop
Tue, Jun 11 - Tue, Jun 11
8:00 pm - 9:28 pmDCA-STL
2h 28mnonstop
6:09 am - 9:11 amSTL-DCA
2h 02mnonstop
$199American Airlines
Find Deal
Tue, Jun 11 - Wed, Jun 12
6:30 am - 10:08 amIAD-STL
4h 38m1 stop
5:31 pm - 12:47 amSTL-IAD
6h 16m1 stop
$201United Airlines
Find Deal
Sun, May 26 - Thu, May 30
6:00 am - 9:19 amIAD-STL
4h 19m1 stop
6:10 pm - 10:58 pmSTL-IAD
3h 48m1 stop
$203Delta
Find Deal
Wed, Jun 5 - Wed, Jun 19
6:00 am - 12:16 pmDCA-STL
7h 16m1 stop
6:30 am - 11:57 amSTL-DCA
4h 27m1 stop
$203Delta
Find Deal
Thu, May 23 - Wed, May 29
8:00 pm - 9:28 pmDCA-STL
2h 28mnonstop
5:42 pm - 8:43 pmSTL-DCA
2h 01mnonstop
$204American Airlines
Find Deal
Mon, Jun 10 - Wed, Jun 12
12:29 pm - 10:38 amBWI-STL
23h 09m1 stop
11:39 am - 6:42 pmSTL-BWI
6h 03m1 stop
Wed, May 8 - Sat, May 11
8:20 am - 9:32 amIAD-STL
2h 12mnonstop
8:25 am - 11:35 amSTL-IAD
2h 10mnonstop
$274United Airlines
Find Deal
Sun, May 26 - Thu, May 30

Flights from Washington, D.C. to St. Louis - Travel Insights & Trends

Get data-powered insights and trends into flights from Washington, D.C. to St. Louis to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Washington, D.C. to St. Louis flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for one-way flights from Washington, D.C. to St. Louis.
Our data shows that the cheapest route for a one-way flight from Washington, D.C. to St. Louis cost $79 and was between Washington, D.C. Reagan-National Airport and St. Louis. On average, the best prices are found if you fly this route. The average price for a return flight for this route is $183.

What’s the cheapest day of the week to fly from Washington, D.C. to St. Louis?

The average price of all flights from Washington, D.C. to St. Louis clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to St. Louis on a Saturday and more expensive on a Monday. On your return trip to Washington, D.C., you should consider flying back on a Wednesday, and avoid Sundays for better deals.

What is the cheapest month to fly from Washington, D.C. to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Washington, D.C. to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Washington, D.C. to St. Louis is February, where tickets cost $284 on average. On the other hand, the most expensive months are June and November, where the average cost of tickets is $391 and $388 respectively.

How far in advance should I book a flight from Washington, D.C. to St. Louis?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Washington, D.C. to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Washington, D.C. to St. Louis, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 50 days before departure.

Which airlines provide the cheapest flights from Washington, D.C. to St. Louis?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Washington, D.C. to St. Louis found by KAYAK users in the last 72 hours was for $137 on Spirit Airlines, followed by Frontier ($139). One-way flight deals have also been found from as low as $68 on Spirit Airlines and from $76 on Frontier.

Which airlines fly most frequently between Washington, D.C. and St. Louis?

Southwest connects Washington, D.C. to St. Louis with up to 9 flights per day. American Airlines also offers 2 flights per day, while United Airlines follows with 2 flights per day.

Which airlines fly non-stop between Washington, D.C. and St. Louis?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Washington, D.C. to St. Louis.
There are 3 airlines that fly nonstop from Washington, D.C. to St. Louis. They are: American Airlines, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with United Airlines at $173 for a one-way flight. On average, the best prices for this route can be found at American Airlines.

How many flights are there between Washington, D.C. and St. Louis per day?

Each day, there are between 9 and 21 nonstop flights that take off from Washington, D.C. and land in St. Louis, with an average flight time of 2h 15m. The most common departure time is 2:00 pm and most flights take off in the morning. Each week, there are 101 flights. The most frequent day of departure is Tuesday, when 21% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Washington, D.C. and St. Louis?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Washington, D.C. to St. Louis take?

The average nonstop flight takes 2h 07m, covering a distance of 717 miles.

What’s the earliest departure time from Washington, D.C. to St. Louis?

Early birds can take the earliest flight from Washington, D.C. at 6:15 am and will be landing in St. Louis at 7:30 am.

What’s the latest departure time from Washington, D.C. to St. Louis?

If you prefer to fly at night, the latest flight from Washington, D.C. to St. Louis jets off at 9:20 pm and lands at 10:35 pm.

Good to know

Low season

January

High season

May

Cheapest flight

$68
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Baltimore to St. Louis

When to book flights from Washington, D.C. to St. Louis

Are your dates flexible? Find out the best times to travel from Washington, D.C. to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Washington, D.C. to St. Louis

  • What is the cheapest flight from Washington, D.C. to St. Louis?

    In the last 3 days, the lowest price for a flight from Washington, D.C. to St. Louis was $68 for a one-way ticket and $137 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and St. Louis?

    No, a passport isn't needed to fly from Washington, D.C. to St. Louis. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Washington, D.C. to St. Louis?

    Washington, D.C. is served by 2 major airports and there is only 1 main airport in St. Louis. You will leave Washington, D.C. from one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be arriving at Lambert-St Louis.

  • Which airlines offer Wi-Fi service onboard planes from Washington, D.C. to St. Louis?

    American Airlines, Alaska Airlines, and Delta offer inflight Wi-Fi service on the Washington, D.C. to St. Louis flight route.

  • Which aircraft models fly most regularly from Washington, D.C. to St. Louis?

    The Airbus A319 is the aircraft model that flies most regularly on the Washington, D.C. to St. Louis flight route.

  • Which airline alliances offer flights from Washington, D.C. to St. Louis?

    oneworld, and Star Alliance are the airline alliances operating flights between Washington, D.C. and St. Louis, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Washington, D.C. to St. Louis?

    There are nonstop flights from Washington, D.C. to St. Louis on a daily basis.

  • Which is the best airline for flights from Washington, D.C. to St. Louis, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to St. Louis are Delta and American Airlines. With an average price for the route of $342 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $330 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Washington, D.C. to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Washington, D.C. to St. Louis

  • Looking for a cheap flight? 25% of our users found flights on this route for $104 or less one-way and $234 or less round-trip.

Prefer to fly non-stop from Washington, D.C. to St. Louis?

Find which airlines fly direct from Washington, D.C. to Lambert-St Louis, which days they fly and book direct flights.

Nonstop departures

Washington, D.C. to Lambert-St Louis

Monday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Tuesday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Wednesday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Thursday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Friday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Saturday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Sunday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

See more direct flights

Nonstop returns

Lambert-St Louis to Washington, D.C.

Monday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Tuesday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Wednesday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Thursday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Friday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Saturday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Sunday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

See more direct flights
See more direct flights

Top 5 airlines serving from Washington, D.C. to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Washington, D.C. to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10848 reviews
7.9Comfort
7.4Food
8.0Entertainment
8.2Boarding
8.6Crew
Airline reviews

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

10.0 ExcellentAllan, May 2024SUN - SLC
Read more about Delta reviews

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

I had a wonderful experience flying with delta. The gentleman taking care of us on our flight was so nice, accommodating, and attentive. He always was smiling and giving pins to the kids which made me smile. The flight was quick too and without turbulence. Thank you for the great flying experience.

Delta is one of the best airlines I have flown

Made the Atlanta to Pittsburgh trip many times, with Delta no issues

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

they made me check my carryon. There was space in the overhead bins.

The plane was delayed 2 hours. The wifi did not work. The seat in first class was not comfortable because the bottom felt like it lost all of its padding. And I did not like when the flight attendant made me wait at my seat to use the bathroom and didn't tell me why. If there were too many people using the 1st Class bathroom, she should have told me to go in the back, coach bathrooms. I guess I have to feel fortunate that they found 2 local pilots to still fly the plane tonight after the original pilots ended up at an airport 60 miles away due to high winds.

The crew were really great, but the 4 hour delay in small chunks was the worst.

Just a crappy airline. The same every time. You feel you are a cow on a farm. You are being being whipped and pulled.

Wasn’t very crowded. Seamless processes. No issues traveling with two little kids.

My interaction with the flight attendent Eve was horrible. I was seated in 3F and was blown away watching her repeatedly skip me as she took other customer orders for lunch...she took the customer next to me but skipped me, then took everyone's order around me (in front of and behind me) . After she had taken every customer's orders to include those behind me, she came to me and said we are out of everything except one last item. I was mortified, in that, I am a 1k flyer, had pre-ordered AND as an African American could only assume why she repeatedly skipped me...mortified. no words

The Flight was good, pilot seemed very skillful. My wheel chair sister who could barely walk was allotted the second last seat in the aircraft, with great difficulty she managed to reach on her seat, as she required attendance we were given separate seat, even on request no one cared, so much so there were single passengers who were given twin seats. May not be taken as complaint but a reminder to the checkin staff to keep in mind in future the allottment of wheel chair passengers seats.

Almost 2 hour delay in boarding with all standing ready to board at original time. No explanation given.

787-9 Transcon from IAD-LAX FYI no meals in premium plus, not considered Premium - seats are wonderful https://www.united.com/ual/en/us/fly/travel/inflight/premium-services.html Horrible handling of delayed flight

Overall the flights pretty good. The snacks we’re good and they were plenty of them. Both boarding and deplaning went quickly.

Delayed abs delayed Gate crew giving poor info - we are definitely leaving at —- Ultimately to cancel flight after 4+ hours of delays Just cancel it earlier

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

Lots of weather delays that were poorly communicated and managed. I get there are weather delays but they didn’t make it clear what was happening or comfortable on the plane

Everything was on time; the flight attendants and the gate personnel were very pleasant and helpful.

Our second leg to Jackson WY was unable to land due to weather. We were flown back to Dallas after stopping in SLC. We were given hotel rooms and vouchers. We were told that we would be back on the same plane in the morning. Instead we were given a different flight with different seats. Not a good experience. No one knew what was going on.

Perfect flight. On time departure and early arrival. Smooth flight.

Awful! The flight was delayed and we sat on the plane in DCA for an hour because fuel was out in the wrong part of the plane and would not be accessible during flight. So the plane had to be refueled in correct tank. They also allowed someone to get off of the plane. This delayed my six hour flight by an hour and made me miss my connecting flight. I ran to new gate and American Airlines agents new about the delay and even knew that I was trying to make the connection. They knew thru communication with my friend while in flight that I was in the airport and running to the new gate and they still closed the gate and refused to let me on the new flight despite plane still being at the gate. It was horrible and I had to be rebooked on a flight for 24 hours later. This has been a nightmare and if American Airlines can cause customers to be delayed and then have zero empathy as having an on time flight was more important to them than helping a customer who was delayed by no fault of her own, then it's seems that it's not a company that I want to continue to give my loyalty to. I'm so disgusted.

Help was available but timing was bad in my case

It was a horrible snow storm, but updates were inconsistent and the app never displayed a remotely accurate time or gate until very close to boarding.

The crew was not great or professional. It seemed like they didn't really want to be there. A true lack of effort for accommodating customers.

Everything was really good but the seats are not very comfortable.

I paid for WiFi, but it (WiFi) was very very slow, will never take again! Impossible open Utube 😤😤😤

I had no legroom, although I paid for extra legroom. I could barely put my bag in front of my feet and under the seat. The Wi-Fi was horrible. In fact the flight attendant said that they had to reboot it and see if it was going to work and never did.

The guy with severe body odor sat next to me. For the whole duration of the flight it was a torture. The airline should have better policy on limiting people with bad body odor to board the flight. Passengers should not be the ones to endure bad odor for the whole duration of the flight. The airline should be e the one to ensure decent air quality for ever passenger.

Overall it was a miserable experience... I will never fly spirit for more than a 3 hour flight or overnight.

The boarding attendant was slightly rude when I asked about checking our stroller. Made me feel like I was bothering her.

My wife and I are both handicapped and at boarding they upgraded us to a seat closer to the front rather than all the way towards the back. Much appreciated.

Not much seat room, but that was unexpected. But the seat headrest was very uncomfortable.

First the good, everyone was friendly and efficient. Flight was smooth and plane was very clean and new. Now the bad, seats have almost no padding on your behind. I was in exit row so I had tons of leg room for a 6' 2" bean pole with long legs. Everything was extra - water, soda, snacks everything besides oxygen. Ya get what you pay for, and my flight was cheap as you could ever want it, so no worries.

Six hour delay. Poor customer service. No voucher. Bad communication. Missed important appointments.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

Flight was canceled with little warning. Flight was rebooked through Ontario, California and connecting flight was delayed by over three hours. Frontier is living up to their Greyhound of the skies reputation for sure.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Book cheap flights from Washington, D.C. to St. Louis

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to St. Louis found on KAYAK in the last 72 hours.
5/20Mon
1 stopSpirit Airlines
12h 27mBWI-STL
$68
5/29Wed
1 stopSpirit Airlines
20h 17mBWI-STL
$75
5/18Sat
1 stopFrontier
11h 22mBWI-STL
$76
5/15Wed
1 stopFrontier
11h 18mBWI-STL
$81
5/29Wed
nonstopAmerican Airlines
2h 16mDCA-STL
$85
5/22Wed
1 stopDelta
4h 19mIAD-STL
$94
5/22Wed
1 stopDelta
5h 05mDCA-STL
$94
8/9Fri
nonstopAmerican Airlines
2h 16mDCA-STL
$105
10/9Wed
nonstopUnited Airlines
2h 23mIAD-STL
$139
5/16Thu
nonstopUnited Airlines
2h 27mIAD-STL
$168

Search by stops

Search by airline

Search by price

Last minute flights from Washington, D.C. to St. Louis

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Washington, D.C. to St. Louis that are departing in the next 10 days.
5/8Wed
multi-stopFrontier
28h 38mDCA-STL
5/14Tue
multi-stopFrontier
18h 10mSTL-DCA
$159
5/8Wed
multi-stopFrontier
28h 38mDCA-STL
5/15Wed
multi-stopFrontier
14h 59mSTL-DCA
$173
5/8Wed
multi-stopSpirit Airlines
21h 28mBWI-STL
5/11Sat
multi-stopSpirit Airlines
14h 27mSTL-BWI
$362
5/8Wed
multi-stopSpirit Airlines
25h 18mBWI-STL
5/11Sat
multi-stopSpirit Airlines
14h 27mSTL-BWI
$379
5/8Wed
nonstopAmerican Airlines
2h 24mDCA-STL
5/10Fri
nonstopAmerican Airlines
1h 59mSTL-DCA
$479
5/8Wed
nonstopAmerican Airlines
2h 24mDCA-STL
5/21Tue
nonstopAmerican Airlines
1h 59mSTL-DCA
$480
5/8Wed
nonstopUnited Airlines
2h 27mIAD-STL
5/21Tue
multi-stopUnited Airlines
5h 47mSTL-IAD
$489
5/8Wed
multi-stopUnited Airlines
4h 46mDCA-STL
5/16Thu
multi-stopUnited Airlines
6h 53mSTL-DCA
$489
5/8Wed
multi-stopDelta
4h 58mIAD-STL
5/13Mon
multi-stopDelta
3h 40mSTL-IAD
$498
5/8Wed
multi-stopDelta
4h 09mDCA-STL
5/14Tue
multi-stopDelta
7h 01mSTL-DCA
$498

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Search by price

Flights to St. Louis

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Washington, D.C.

Cabin classes:

$604
$560
$596
$183