Find flights
Deals
Insights
When to book
FAQs & Tips
Direct Flights
Airlines

WAS - STL

$55 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 5/11. 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
Fri 5/24
Fri 5/31

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 45,119,101 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
8:08 am - 7:13 amBWI-STL
24h 05m1 stop
7:16 pm - 2:56 pmSTL-BWI
18h 40m1 stop
$99Frontier
Find Deal
Mon, May 13 - Tue, May 14
9:17 pm - 8:53 pmBWI-STL
24h 36m1 stop
7:16 pm - 7:18 amSTL-BWI
11h 02m1 stop
$100Frontier
Find Deal
Tue, May 7 - Thu, May 9
10:12 pm - 5:29 pmBWI-STL
20h 17m1 stop
5:15 pm - 12:33 amSTL-BWI
6h 18m1 stop
$170Spirit Airlines
Find Deal
Wed, May 15 - Sat, May 25
6:00 am - 9:05 amIAD-STL
4h 05m1 stop
3:27 pm - 8:33 pmSTL-IAD
4h 06m1 stop
$178Delta
Find Deal
Wed, May 22 - Wed, May 29
10:12 pm - 6:40 pmBWI-STL
21h 28m2 stops
11:39 am - 12:51 amSTL-BWI
12h 12m1 stop
$191Spirit Airlines
Find Deal
Wed, May 8 - Sat, May 11
6:00 am - 9:19 amIAD-STL
4h 19m1 stop
3:27 pm - 8:33 pmSTL-IAD
4h 06m1 stop
$193Delta
Find Deal
Sun, May 19 - Tue, May 21
7:45 pm - 9:00 pmDCA-STL
2h 15mnonstop
5:04 pm - 8:00 pmSTL-DCA
1h 56mnonstop
$199American Airlines
Find Deal
Mon, May 13 - Tue, May 14
8:10 pm - 11:20 pmIAD-STL
4h 10m1 stop
5:37 am - 12:39 pmSTL-IAD
6h 02m1 stop
$205American Airlines
Find Deal
Wed, Aug 14 - Tue, Aug 20
6:30 am - 10:19 amIAD-STL
4h 49m1 stop
8:25 am - 11:33 amSTL-IAD
2h 08mnonstop
$208United Airlines
Find Deal
Sat, Aug 17 - Mon, Aug 26
6:30 am - 10:19 amIAD-STL
4h 49m1 stop
5:20 pm - 12:15 amSTL-IAD
5h 55m1 stop
$213United Airlines
Find Deal
Sat, Aug 17 - Mon, Aug 26

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 $71 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 $189.

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 Saturday, 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 $99 on Frontier, followed by Spirit Airlines ($170). One-way flight deals have also been found from as low as $55 on Frontier and from $70 on Spirit Airlines.

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

Washington, D.C. and St. Louis are connected by different airlines. The airlines that fly that route the most regularly are Southwest (7 flights per day), American Airlines (4 flights per day), and United Airlines (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 16 nonstop flights that take off from Washington, D.C. and land in St. Louis, with an average flight time of 2h 17m. The most common departure time is 2:00 pm and most flights take off in the morning. Each week, there are 99 flights. The most frequent day of departure is Friday, when 16% 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 6:20 am and will be landing in St. Louis at 7:35 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 9:05 pm and lands at 10:20 pm.

Good to know

Low season

January

High season

May

Cheapest flight

$55
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 $55 for a one-way ticket and $99 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, and Alaska Airlines 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 Canadair (Bombardier) Regional Jet CRJ-550 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 United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to St. Louis are Delta and United Airlines. With an average price for the route of $342 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $446 and an overall rating of 7.4.

  • 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 $253 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 11004 reviews
7.9comfort
8.2boarding
7.5food
8.6crew
8.0entertainment
Airline reviews

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

6.0 GoodDan, Apr 2024LGA - DEN
Read more about Delta reviews

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

Horrible. This was not first class. This was a connecting flight whi h was late. My original flight never came. I hated the fact that delta gave me a connecting flight from New York to Orlando Florida. No meals and the television screens were not working. There wasn't even any power to charge your phones. This is NOT FIRST CLASS DELTA!!! Do better next time!

This flight was ridiculous. I had to have a connecting flight from New York to orlando Florida??? The flight left late and because it was a short flight there was no first class amenities. I had one alcohol drink. The flight crew was fine, but it sure did not feel like first class. Delta to me dropped the ball by giving me a connecting flight. By the time we got to Raleigh we would have missed the next flight. Lucky for me the flight never came so now I was stuck waiting for a later flight that came in late also.

Our flight was delayed in Atlanta. The staff could have gave us an explanation for the delay and how long it would be.

I liked the ease of checking in, luggage check in, wheel chair assistance, boarding and flight.

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive. I also upgraded to comfort + , I didn’t feel it was worth it. There was no benefit

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive.

They did a fine job. Can't wait to use Delta in the future.

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

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

I was forced to gate check my carry on luggage. Somehow it did not arrive at my destination. I still have yet to receive my bag r days after arrival.

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.

Spirit canceled the flight in March and never notified me!

Seats suck, not enough room, overcrowded planes, hectic situation all together.

Pretty good. Would’ve been excellent if we would have left on time and the crew wasn’t late.

I do not like the customer service, I had an emergency and needed to cancel a pet reservation right after I had booked it and they would not do anything but issue a credit. I haven't flown in years as I have 7 kids and don't have spare time. I want my $125 back on my card please

Spirit airline tries to screw you at every opportunity. Spirit wanted 65$ for an extra pound in the suitcase Made me open the suitcase at the counter to remove 1 pound. Staff very cold and rude Will never fly spirit again and will recommend same to family and friends

Delayed..4 times...completely disorganized boarding. After 5 hours they scrambled to move ppl off plane bc they overbooked. Then they didn't have a cabin crew. WiFi on plane didn't work. Zero amenities. Once we boarded we sat on tarmac for an hour. Explore all alternate options including purchasing a pair of hiking boots and walking to your destination instead of flying spirit.

what I like about Spirit is that the pilot and crew are good communicators. The plane itself - well, its a budget airline and you get what is expected, But I generally just feel safer, somehow, when I know more about what is going on - and Spirit has always done a good job of telling me what is going on: why the delay, why the turbulence, why this and that... and that means a lot to me.

I paid just under 200 for flight and luggage, then paid 200 to change the flight, then paid 100 for a carry on. Then the cancelled the flight. Of the 500 I spent they refunded 250. I bought a delta flight for 270 never flew with spirit, but spirit kept 250, not even refunding the 100 for the carry on though they cancelled the flight (for weather on a day with only a slight rain ).

Flight attendants heavily pushed their affinity credit card. Very annoying

They charged me 212.00 for a heavy check in bag at the gate. The pricing and process was so confusing - as if it was designed to purposefully gouge customers who need to board plane. That experience combined with the outrageous price charged will prevent me from ever flying Spirit again. And I’ll be sure to tell the story to anyone who cares to hear.

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

Not have to pay for every single item to take a flight. Seating and delays sucked.

Flight was cancelled and I had to spend the night in the airport lugging my suitcase around

If you don’t check in 24 hours in advance, they will charge you $110 to check your bag instead of the $30. I did not get an email with this information and did not check in. In addition, my flight home was cancelled at layover and I had to spend the night in the airport, and then have another layover at another airport before making it home. Will not fly frontier again.

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.
5/11Sat
1 stopFrontier
11h 13mBWI-STL
$55
5/7Tue
1 stopFrontier
24h 36mBWI-STL
$59
4/30Tue
1 stopSpirit Airlines
8h 09mBWI-STL
$70
5/15Wed
nonstopAmerican Airlines
2h 16mDCA-STL
$80
5/15Wed
1 stopDelta
6h 48mIAD-STL
$89
5/15Wed
1 stopDelta
6h 48mDCA-STL
$89
7/9Tue
nonstopAmerican Airlines
2h 29mDCA-STL
$95
5/22Wed
2 stopsSpirit Airlines
21h 28mBWI-STL
$97
5/7Tue
nonstopUnited Airlines
2h 29mIAD-STL
$141
5/14Tue
nonstopUnited Airlines
2h 27mIAD-STL
$147

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.
4/27Sat
multi-stopFrontier
11h 13mBWI-STL
4/28Sun
multi-stopFrontier
11h 02mSTL-BWI
$223
4/28Sun
multi-stopFrontier
27h 31mBWI-STL
5/1Wed
multi-stopFrontier
21h 34mSTL-BWI
$225
4/26Fri
multi-stopSpirit Airlines
27h 15mBWI-STL
4/30Tue
multi-stopSpirit Airlines
5h 50mSTL-BWI
$364
4/25Thu
multi-stopSpirit Airlines
14h 29mBWI-STL
4/30Tue
multi-stopSpirit Airlines
5h 50mSTL-BWI
$365
4/27Sat
nonstopAmerican Airlines
2h 25mDCA-STL
4/30Tue
nonstopAmerican Airlines
2h 07mSTL-DCA
$503
4/27Sat
multi-stopAmerican Airlines
5h 05mDCA-STL
4/30Tue
nonstopAmerican Airlines
2h 01mSTL-DCA
$511
4/27Sat
multi-stopDelta
4h 55mIAD-STL
5/1Wed
multi-stopDelta
7h 03mSTL-IAD
$536
4/27Sat
multi-stopDelta
4h 59mDCA-STL
4/30Tue
multi-stopDelta
3h 36mSTL-DCA
$536
4/26Fri
nonstopUnited Airlines
2h 27mIAD-STL
5/1Wed
nonstopUnited Airlines
2h 10mSTL-IAD
$555
4/28Sun
nonstopUnited Airlines
2h 27mIAD-STL
5/1Wed
nonstopUnited Airlines
2h 10mSTL-IAD
$556

Search by stops

Search by airline

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
$189

Compare transportation modes for Washington, D.C. to St. Louis

Average priceAverage duration
Flights$4132h 15m
Buses$23224h 30m