WAS - STL

$54 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 12/4. 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
1 adult, Economy

KAYAK searches 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
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Flight Deals

Cheap Flights 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to St. Louis

Fri, Nov 14 - Mon, Nov 17
Frontier Logo
5:50 am - 4:01 pmBWI-STL
11h 11m1 stop
Frontier Logo
2:12 pm - 10:20 amSTL-BWI
19h 08m1 stop
$144Frontier
Find Deal
Fri, Oct 31 - Sun, Nov 2
Frontier Logo
9:11 pm - 3:38 pmBWI-STL
19h 27m1 stop
Frontier Logo
2:12 pm - 8:34 amSTL-BWI
17h 22m1 stop
$165Frontier
Find Deal
Thu, Nov 6 - Sun, Nov 9
Delta Logo
6:00 am - 9:37 amBWI-STL
4h 37m1 stop
Delta Logo
6:09 pm - 11:00 pmSTL-BWI
3h 51m1 stop
$219Delta
Find Deal
Sat, Nov 15 - Sat, Nov 22
American Airlines Logo
3:54 pm - 5:26 pmDCA-STL
2h 32mnonstop
American Airlines Logo
7:47 am - 10:59 amSTL-DCA
2h 12mnonstop
$231American Airlines
Find Deal
Wed, Dec 3 - Tue, Dec 9
United Airlines Logo
8:40 am - 10:07 amIAD-STL
2h 27mnonstop
United Airlines Logo
8:30 am - 11:40 amSTL-IAD
2h 10mnonstop
$231United Airlines
Find Deal
Fri, Nov 7 - Mon, Nov 10
American Airlines Logo
7:50 am - 9:20 amDCA-STL
2h 30mnonstop
American Airlines Logo
6:14 pm - 9:26 pmSTL-DCA
2h 12mnonstop
$234American Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
United Airlines Logo
8:40 am - 10:07 amIAD-STL
2h 27mnonstop
United Airlines Logo
8:25 am - 11:33 amSTL-IAD
2h 08mnonstop
$234United Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 2
Southwest Logo
5:40 am - 2:45 pmIAD-STL
10h 05m1 stop
Southwest Logo
5:30 am - 1:10 pmSTL-IAD
6h 40m1 stop
$239Southwest
Find Deal
Thu, Nov 13 - Mon, Nov 17
Southwest Logo
7:35 am - 9:00 amBWI-STL
2h 25mnonstop
Southwest Logo
7:00 am - 12:10 pmSTL-BWI
4h 10m1 stop
$262Southwest
Find Deal
Fri, Nov 7 - Sun, Nov 9
Delta Logo
10:18 am - 2:43 pmBWI-STL
5h 25m1 stop
Delta Logo
6:00 am - 11:11 amSTL-BWI
4h 11m1 stop
$279Delta
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
Southwest offers two free checked bags, ideal for extra luggage.
Use MetroLink for easy access from STL to downtown.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Frontier
Cheapest • from $144 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
DCA-STL
Cheapest • 20% average savings
DCA-STL
Most popular
Insights
Insights
Insights
Insights
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 49% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 19% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$144
Overall average: $375
Frontier
Fri 11/14Mon 11/17
BWI - STL • 1 stop
Cheapest non-stop
$231
Typical prices: $443-$668
United Airlines
Wed 12/3Tue 12/9
IAD - STL • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Booking Insights

KAYAK's insights & trends for Washington, D.C. to St. Louis flights

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.

How much is a round-trip flight from Washington, D.C. to St. Louis?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. to St. Louis departing in November.

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

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Washington, D.C. to St. Louis costs $199 on the route between Washington, D.C. Reagan-National Airport (DCA) and St. Louis (STL). Over the past month, this route was, on average, 20% cheaper than other Washington, D.C.-St. Louis routes. It is also the most popular route.

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

The average price of all round-trip flights from Washington, D.C. to St. Louis clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Washington, D.C. to St. Louis, look for departures on Saturdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from St. Louis, Friday is the cheapest day to fly and Saturday is the most expensive.

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 round-trip 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 August, where tickets cost $267 (return) on average. On the other hand, the most expensive months are October and March, where the average cost of round-trip tickets is $393 and $373 respectively.

Can I save money by flying with a layover from Washington, D.C. to St. Louis?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $291 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.

To get a below average price on the flight from Washington, D.C. to St. Louis, you should book around 4 weeks before departure, which saves you about 49% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Expert advice

Expert advice for your flight from Washington, D.C. to St. Louis

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Southwest

Southwest offers free snacks and drinks; download their app for entertainment streaming.


Use Cash + Points for flexible booking options on Southwest flights.

Read more about Southwestby Blane Bachelor
American Airlines

Main Cabin Extra offers early boarding and complimentary drinks, enhancing your travel experience.


Basic Economy includes late boarding and no free checked bags, suitable for light travelers.

United Airlines

Economy Plus offers up to six inches more legroom than standard economy seats for added comfort.


Purchase Priority Boarding to avoid gate-checking your carry-on, ensuring overhead bin space.

Airports
DCA

DCA's Metrorail connection makes it easy to reach downtown DC in under 30 minutes, perfect for quick access to the city.

Read more about DCAby Stefanie Waldek
IAD

At IAD, the AeroTrain connects the main terminal with Concourses A, B, and C, making navigation easier for domestic travelers.

Read more about IADby Stefanie Waldek
STL

Use MetroLink for convenient access from STL to downtown St. Louis, avoiding rush hour traffic.

Read more about STLby Yulia Denisyuk
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines, DCA and IAD

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia Denisyuk

Yulia Denisyuk

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Read more

Good to know

Low seasonFebruary
Cheapest flight$54
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Washington Dulles Airport 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 $54 for a one-way ticket and $144 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, Hawaiian 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 Boeing 737-800 Passenger/BBJ2 (winglets) 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?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Washington, D.C. and St. Louis, with SkyTeam 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, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to St. Louis are Southwest and Delta. With an average price for the route of $343 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $248 and an overall rating of 7.9.

  • 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.

KAYAK’s 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 $254 or less one-way and $350 or less round-trip.

Prefer to fly direct from Washington, D.C. to St. Louis?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. to Lambert-St Louis.
Find which airlines fly direct from Washington, D.C. to Lambert-St Louis Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. to Lambert-St Louis

Monday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Tuesday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Wednesday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Thursday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Friday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Saturday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Sunday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

See more direct flights

Direct returns

Lambert-St Louis to Washington, D.C.

Monday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Tuesday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Wednesday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Thursday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Friday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Saturday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Sunday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

See more direct flights

Reviews of the 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
SouthwestOverall score based on 4235 reviews
8.0Comfort
7.5Entertainment
8.1Boarding
8.6Crew
7.0Food
Airline reviews

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

4.0 OkayAnnette, Oct 2025LGA - MCI
Read more Southwest reviews

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

mandatory demand customer to check their carry on because not enough people check bags.

Connecting flight is on time and boarding was a breeze!

Excellent. Would encourage Southwest to keep current boarding procedures with free style seating. Makes for a fantastic experience

As always, the entire Southwest experience was perfect. Purchasing the tickets on the Southwest web site was effortless, departure and arrival gates were spotless and comfortable, plane was clean and comfortable, crew was excellent and flight was on time. Wheelchair service in Las Vegas at departure was somewhat chaotic and disjointed, but I am not sure if that was Southwest problem, airport problem or combination.

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

After being assaulted by a flight attendant I was then brushed off as oh well because he long braids didn’t mean to whip me in the eye. I have filed complaints and will see. But like any other issue I’ve had with kayak involved it’s been trash. Last time I’ll be using your app

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

On time flight. Seat comfort could be better in the Comfort section.

My issue was with TSA agents for delta airlines. My luggage got flagged. The agent was going thru another persons first. He took 20 min to go thru hers. I asked them to bring mine closer so I could sit down . They said you can go sit it will be fine. I said I am supposed to keep my eyes on my bags at all times. The agent was meticulously unwrapping 2 gifts that the lady had and then tried to re warp it. He was trying to be kind i get it but 20 min for me to stand watching him do that was ridiculous. It was 6 am and there were a ton of travelers. Mine was flagged for some air packed tea that I bought in Turkey. My previous delta flight and 2 others before didn’t flag it. Consistency would be nice. Also on the flight the window shades were down for take off and landing - I thought that was very odd I thought they had to remain open for take off and landing.

The flight was an hour and a half late departing which was inconvenient

Delay in SLC jammed us up in Chicago. Got caught up in rush hour traffic

The crew took good care of us. The flight from ATL to SFO is a longer one, and there were multiple beverage offerings. I like the 757's that Delta uses. Good airplane that is comfortable. I do wish Delta would separate Priority boarding from the better seats. I would gladly take a smaller seat in an open row than be jammed into Comfort just to get priority boarding, just to make sure I don't have to check a bag.

The flight was great. The gate location was way to far away!!!

The flight attendant in first class was beyond rude and didn't care at all about her job. AND the gate agent was even worse than the flight attendant for rudeness. She was awful.

Gate agent rushed to fill hot jetway with crowd so it took over 12 minutes to go from gate to plane. Just like a discount airline Pooly prepared cabin and third time that claim of rough air prevented any cabin service. Friends on a Southwest flight at similar time had service.

Cramped seating for me. Luckily it wasn’t a long flight

Lounge in Lagos is terrible, food on board from Lagos to Atlanta was horrible. Only bright spot the cabin crew were awesome.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

The AA staff person who checked our bags was curt and almost rude. The FA also seemed unhappy doing her job. Overall it was like riding the school bus back in grade school.

They are still charging me after taking 466 and 833 for round trip from AR to to Bradley airport from 19 to 21. Then poor experience. Am hurt and I will say it on social media. Please stay away from this airline. I see in my bank account they are still taking 644. Am trying to stop it. I used to fly United airlines and I suggest that if you don't want extra charges and good service you go back there. American airlines delayed my flight again and I was late for my meeting, no recompensation but charging me over and over.

They changed our Gate 5 times, and concourse twice. Changed our seats twice.

Pitch was very small. Knees were on the seat back in front of me.

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

The flight was initially delayed, then cancelled. American Airlines says the cancellation was weather related, though the actual weather was not bad in both Washington and Providence and between. There were very few cancellations that day. In fact, AA2120 from Washington, DC to Boston flew with a minor delay at about the same time. So, the weather somehow affected only this particular flight AA5230. The next available flight was the following morning. The American Airlines refused to reimburse accommodation (hotel at DCA)

Fine. On time, cabin service was fine, bag arrived. All good. Flying into DCA so did not collide with any helicopters, which is also good. Horrid incident that could have and should have been prevented.

Good experience but the snacks are not gluten free, so I cannot eat them.

The single worst check in experience I could imagine. I’ll never do any business with Frontier or any affiliated company

Too many extra fees, uncomfortable, little leg room. Will not recommend this airline.

Everyone seemed to be in zone 1 for boarding. Maybe break it up a little. Otherwise, smooth flight.

Frontier is the Walmart of airlines. Frontier has removed adjustability and comfort from their seats to make the flight lighter and save gas. This makes it impossible to sleep on their flights. Their customer service is abysmal. Once, I bought a drink on the plane, and they swiped my credit card on the plane to pay for it. Then I got three weeks of daily notices from my bank telling me they tried to charge the wrong card number over and over again. I tried to call them, but they removed the ability to actually talk to someone that can resolve such a problem from their company to cut corners. The only way to talk to someone in person is to go to the check-in counter at the airport (40 minutes drive from my house). Eventually their system gave up on trying to charge the card, after 21 days of repeated tries. They don't pad their prices even a little to handle customer service issues like missed flights. They also have a blanket policy preventing helping you reschedule a missed flight if their system says you "cancelled" your own flight online. This is a major problem because their website is broken on mobile devices, the only web browser you have at the airport when their gate staff tell you that you have to reschedule your own missed flight online because they can't help you. I tried to reschedule my flight on my android device and instead, their website crashed and "cancelled" my missed flight. When I got to the counter, the agent argued with me for 5 minutes insisting that I intentionally cancelled my own flight (implying I had to buy another flight). She missed the point: the problem was that I could not buy another flight because their website is broken. I left to avoid more conflict with the "customer service" agent. I tried to redress my issue with their only other "customer service" chanel available: the contact form on their website. The response I got was more of the same: you cancelled your own flight, according to our website / computer records, therefore we won't help you. I was trying to explain the problem with their broken website that cost me hundreds of dollars by crashing / malfunctioning and resulting in a cancelled flight, but they only had deaf ears for this problem. Worst customer service I have ever experienced. I will never buy another Frontier flight again, because it is a risky, painful move that I will likely regret often.

I think Frontier was very good at communication. Their app worked very well. Loading was great and the flight was nice and easy.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

Finally a Frontier on time and efficient. I've had problems before with your airline, but this time everything went fine.

The experience was good. No frills but I got there safe and sound and on time.

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

Everything you need to know for your flight from Washington, D.C. to St. Louis

Other airlines flying from Washington, D.C. to St. Louis

Flights from the other most popular airlines that fly from Washington, D.C. to St. Louis according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

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

Transportation modeAverage priceAverage duration
Flights$3622h 25m
Buses$23426h 23m

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