WAS - STL

$52 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 1/27. 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, 0 bags

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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Everything you should know

Cheapest round-trip
$129
Typical prices: $272-$516
Frontier
Fri 2/20Mon 2/23
BWI - STL • 1 stop
Cheapest non-stop
$258
Typical prices: $423-$594
United Airlines
Mon 12/29Tue 1/6
IAD - STL • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
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
Delta
Cheapest • from $197 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
BWI-STL
Cheapest • 16% 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 53% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 18% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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!
Flight Deals
Booking Insights
Expert advice
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, Feb 20 - Mon, Feb 23
Frontier Logo
9:21 am - 7:11 pm
BWI
-
STL
10h 50m1 stop
Frontier Logo
5:11 pm - 9:23 pm
STL
-
BWI
27h 12m1 stop
$129Frontier
Sun, Jan 11 - Tue, Jan 13
Multiple Airlines Logo
4:44 pm - 8:05 am
BWI
-
STL
16h 21m1 stop
Multiple Airlines Logo
5:11 pm - 10:36 pm
STL
-
BWI
28h 25m1 stop
$143Multiple Airlines
Sun, Jan 11 - Tue, Jan 13
Multiple Airlines Logo
1:02 pm - 8:05 am
BWI
-
STL
20h 03m1 stop
Multiple Airlines Logo
5:11 pm - 7:03 pm
STL
-
BWI
24h 52m2 stops
$153Multiple Airlines
Thu, Jan 8 - Mon, Jan 12
Frontier Logo
1:02 pm - 10:33 pm
BWI
-
STL
10h 31m1 stop
Frontier Logo
5:11 pm - 10:36 pm
STL
-
BWI
28h 25m1 stop
$158Frontier
Mon, Dec 29 - Tue, Jan 6
United Airlines Logo
5:50 pm - 7:22 pm
IAD
-
STL
2h 32mnonstop
United Airlines Logo
8:30 am - 11:40 am
STL
-
IAD
2h 10mnonstop
$258United Airlines
Wed, Dec 17 - Thu, Jan 1
Southwest Logo
12:25 pm - 1:45 pm
DCA
-
STL
2h 20mnonstop
Southwest Logo
4:25 pm - 10:55 pm
STL
-
DCA
5h 30m1 stop
$259Southwest
Wed, Dec 17 - Thu, Jan 1
United Airlines Logo
5:15 pm - 10:45 pm
IAD
-
STL
6h 30m1 stop
United Airlines Logo
8:15 am - 11:24 am
STL
-
IAD
2h 09mnonstop
$259United Airlines
Fri, Feb 27 - Sun, Mar 1
American Airlines Logo
7:59 pm - 9:41 pm
DCA
-
STL
2h 42mnonstop
American Airlines Logo
3:56 pm - 7:13 pm
STL
-
DCA
2h 17mnonstop
$261American Airlines
Tue, Feb 17 - Sun, Feb 22
Southwest Logo
7:15 pm - 10:35 pm
DCA
-
STL
4h 20m1 stop
Southwest Logo
8:30 am - 1:00 pm
STL
-
DCA
3h 30m1 stop
$262Southwest
Fri, Feb 27 - Sun, Mar 1
American Airlines Logo
7:20 am - 9:02 am
DCA
-
STL
2h 42mnonstop
American Airlines Logo
3:32 pm - 9:32 pm
STL
-
DCA
5h 00m1 stop
$266American Airlines
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 February.

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 $208 on the route between Baltimore (BWI) and St. Louis (STL). Over the past month, flights between Washington, D.C. Reagan-National Airport (DCA) and St. Louis (STL) were, on average, 16% cheaper than other Washington, D.C.-St. Louis routes. This 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 $270 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is $383 and $378 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.

No, with an average price for the route of $372, prices are generally cheapest when you fly direct.

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 53% 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

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
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.

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.

IAD

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

STL

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

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$52
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 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 $52 for a one-way ticket and $129 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, Delta, and Hawaiian 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 Boeing 737 MAX 8 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 $268 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 $215 or less one-way and $357 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 4254 reviews
8.6Crew
8.1Boarding
7.5Entertainment
8.0Comfort
7.0Food
Airline reviews

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

10.0 ExcellentDavid, Nov 2025
BUF - PHX
Read more Southwest reviews

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

Everything a cheap airline should be at normal airline rates.

Plane crashed into a bus or some other vehicle on the ground while pulling out of the gate. No injuries, but wing tip was damaged and returned to gate for “maintenance issues” and we departed 5 hours later because the plane went out of service and new plane was flown in from a nearby airport, Midway.

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

It would’ve been nice for all that money to have a more substantial snack for free. I remember once upon a time getting a very nice turkey sandwich with Swiss cheese on whole wheat bread for no charge along with a drink. I guess those days are gone. it’s a little insulting being given a cookie or a bag of baked chips Going forward I’ll just bring my own.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

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

We were told the flight was delayed 5 times, then it was moved to the next day.

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

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.

Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Better than expected. Staff were friendly and nice on both flights.

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

Boarding was on time and plane departed as scheduled. There are obviously no amenities (food, drink, entertainment) on Frontier, but there also didn't seem to be any issues with luggage space either.

Inbound plane was on time and flight departed on time with no issues while boarding.

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.