$36 Find Deals on Flights from 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 St. Louis to Worldwide departing on 10/23. 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

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Find Cheap Flights from St. Louis

Where can I fly from St. Louis?Prices from STL, departing Sat 10/18 and returning Sat 10/25

Book Cheap International Flights from St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from 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 international flight deals from St. Louis to anywhere

Mon, Nov 3 - Fri, Nov 14
Frontier Logo
10:17 am - 2:30 pmSTL-CUN
3h 13mnonstop
Frontier Logo
3:45 pm - 6:00 pmCUN-STL
3h 15mnonstop
$244Frontier
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Sun, Oct 19 - Thu, Oct 23
Frontier Logo
10:22 am - 1:35 pmSTL-CUN
3h 13mnonstop
Frontier Logo
2:50 pm - 6:07 pmCUN-STL
3h 17mnonstop
$248Frontier
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Tue, Oct 14 - Sun, Oct 19
Frontier Logo
10:22 am - 1:35 pmSTL-CUN
3h 13mnonstop
Frontier Logo
2:50 pm - 6:07 pmCUN-STL
3h 17mnonstop
$270Frontier
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Sun, Oct 12 - Wed, Oct 22
United Airlines Logo
1:30 pm - 6:40 amSTL-MAD
10h 10m1 stop
United Airlines Logo
12:45 pm - 2:27 pmMAD-STL
32h 42m2 stops
$418United Airlines
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Tue, Mar 3 - Tue, Mar 17
United Airlines Logo
8:30 am - 8:00 amSTL-MAD
16h 30m2 stops
United Airlines Logo
12:35 pm - 2:18 pmMAD-STL
31h 43m2 stops
$422United Airlines
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Mon, Oct 6 - Wed, Oct 22
United Airlines Logo
6:30 am - 6:40 amSTL-MAD
17h 10m2 stops
United Airlines Logo
6:20 am - 3:44 pmMAD-STL
16h 24m2 stops
$426United Airlines
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Thu, Jan 15 - Sun, Feb 1
Scandinavian Airlines Logo
11:51 am - 6:20 pmSTL-BCN
23h 29m2 stops
Scandinavian Airlines Logo
7:10 pm - 11:40 pmBCN-STL
35h 30m2 stops
$499Scandinavian Airlines
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Wed, Nov 26 - Thu, Dec 4
United Airlines Logo
6:30 am - 9:35 amSTL-BCN
20h 05m2 stops
United Airlines Logo
1:35 pm - 12:15 pmBCN-STL
29h 40m2 stops
$530United Airlines
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Tue, Feb 17 - Tue, Feb 24
Air Canada Logo
4:05 pm - 9:35 amSTL-BCN
34h 30m2 stops
Air Canada Logo
1:35 pm - 10:00 pmBCN-STL
39h 25m2 stops
$532Air Canada
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Wed, Oct 8 - Wed, Oct 15
Delta Logo
10:45 am - 7:15 amSTL-LCY
14h 30m2 stops
Delta Logo
7:45 am - 4:46 pmLCY-STL
15h 01m2 stops
$583Delta
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Book Cheap Domestic Flights from St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from 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 domestic flight deals from St. Louis

Sat, Oct 11 - Mon, Oct 13
Frontier Logo
7:52 pm - 9:20 pmSTL-DEN
2h 28mnonstop
Frontier Logo
6:00 am - 9:07 amDEN-STL
2h 07mnonstop
$81Frontier
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Sat, Oct 25 - Mon, Oct 27
Frontier Logo
7:52 pm - 9:20 pmSTL-DEN
2h 28mnonstop
Frontier Logo
6:00 am - 9:07 amDEN-STL
2h 07mnonstop
$82Frontier
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Tue, Oct 7 - Wed, Oct 8
Frontier Logo
7:52 pm - 9:20 pmSTL-DEN
2h 28mnonstop
Frontier Logo
6:00 am - 9:07 amDEN-STL
2h 07mnonstop
$83Frontier
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Thu, Oct 23 - Sun, Oct 26
Frontier Logo
1:41 pm - 9:25 amSTL-DFW
19h 44m1 stop
Frontier Logo
7:30 am - 9:22 amDFW-STL
1h 52mnonstop
$108Frontier
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Thu, Oct 23 - Mon, Oct 27
Frontier Logo
11:32 am - 10:39 pmSTL-DFW
11h 07m1 stop
Frontier Logo
7:40 am - 9:32 amDFW-STL
1h 52mnonstop
$114Frontier
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Sat, Oct 18 - Thu, Oct 23
Multiple Airlines Logo
7:15 pm - 9:00 amSTL-EWR
12h 45m1 stop
Multiple Airlines Logo
5:54 am - 10:37 amEWR-STL
5h 43m1 stop
$158Multiple Airlines
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Tue, Oct 14 - Tue, Oct 21
American Airlines Logo
5:23 am - 9:10 amSTL-MIA
2h 47mnonstop
American Airlines Logo
10:01 pm - 11:56 pmMIA-STL
2h 55mnonstop
$169American Airlines
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Wed, Oct 15 - Tue, Oct 28
American Airlines Logo
5:23 am - 9:10 amSTL-MIA
2h 47mnonstop
American Airlines Logo
10:01 pm - 11:56 pmMIA-STL
2h 55mnonstop
$170American Airlines
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Sat, Nov 1 - Sun, Nov 2
Southwest Logo
1:45 pm - 10:05 pmSTL-LGA
7h 20m2 stops
Southwest Logo
5:30 am - 7:15 amLGA-STL
2h 45mnonstop
$212Southwest
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Fri, Nov 7 - Tue, Nov 11
Southwest Logo
2:30 pm - 11:25 pmSTL-LGA
7h 55m1 stop
Southwest Logo
6:15 am - 8:05 amLGA-STL
2h 50mnonstop
$213Southwest
Find Deal
Booking Insights

KAYAK's insights & trends for flights from St. Louis

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

Which are the most popular places to fly to from St. Louis?

The domestic destinations KAYAK users have most searched for when searching for flights from St. Louis.
Based on KAYAK flight searches, the most popular place to fly from St. Louis is New York (18% of total searches). The next most popular destinations are Las Vegas Harry Reid Intl (8%) and Dallas (5%).

What are the most popular international flights out of St. Louis?

The international destinations KAYAK users have most searched for when searching for flights from St. Louis.
There are many international destinations you can fly to from St. Louis. The most popular international destinations among KAYAK users are Frankfurt am Main, San Juan and Cancún.

What are the most popular countries to fly to from St. Louis?

The most popular countries KAYAK users have searched for from St. Louis along with the average round-trip price for the route clicked by KAYAK users in the last 2 weeks.
Based on KAYAK flight searches, the most popular country to fly to from St. Louis is Germany (41% of total searches). The next most popular destinations are Canada (40%) and Mexico (16%).

Which cities can I fly to direct from St. Louis?

There are loads of places you can fly direct to from St. Louis. The most popular destinations for direct flights among KAYAK users are Jacksonville, Chicago, Los Angeles, Tampa and Detroit. On average, the cheapest of these destinations on KAYAK over the last 2 weeks for a return flight was Detroit at $184, while the most expensive was Chicago, at $280.

Which international cities can I fly to direct from St. Louis?

There are many international destinations you can fly to non-stop from St. Louis. The most popular international destinations from KAYAK users are Cancún, Frankfurt am Main and Toronto. On average, the cheapest of these destinations on KAYAK over the last 2 weeks for a return flight was Cancún at $255, while the most expensive was Frankfurt am Main, at $1,027.

What is the longest direct flight from St. Louis?

The longest direct flight you can take from St. Louis is to Frankfurt am Main Airport, with a duration of 8h 55m. The next longest is San Francisco at 4h 35m, followed by a flight to Seattle at 4h 26m.

What are the cheapest places to fly to from St. Louis?

The cheapest destination for a flight from St. Louis found on KAYAK in the last two weeks was Orlando and cost $37. The next cheapest destinations were Quincy at $39 and Fort Lauderdale at $55.

Good to know

Low seasonAugust
Cheapest flight$36
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from St. Louis to Dallas/Fort Worth Airport

Flights from St. Louis: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew from St. Louis to anywhere 
JeffreyFlew with Alaska AirlinesSTL-SEAJun 2025
Don’t get to the airport too early. Security is fast and lines are typically short!
LauraFlew with Spirit AirlinesSTL-FLLSep 2024
If you have kids, and are in gate C, take advantage of the kids play area. terminal isn't too large and you can walk to the last gate in minutes.
CarolFlew with LufthansaSTL-FRAJul 2024
Get to airport at least 1.5 hr early.

FAQs for booking flights out of St. Louis

  • How convenient is it to travel with kids from St. Louis to other locations around the globe?

    You can leave from St. Louis in luxury with your kids. While you wait to board your flights, your kids can play a variety of games and make new contacts at the activity center located in the international departure hall of STL Airport. The free Wi-Fi connections provided by Alaska Airlines and Delta Airlines, the two major airlines that operate numerous flights between St. Louis and the rest of the world, will keep your kids from becoming bored while they watch their favorite shows and listen to their favorite music.

  • When flying to any location in the world, how can I board the first plane leaving St. Louis?

    If you want to depart St. Louis as soon as possible, think about staying at one of the accommodations that are most convenient to STL Airport. One of many hotels in the area that provides free airport shuttle service, the Pear Tree Inn St. Louis Airport is only a 6-minute walk from the airport.

  • Where can I find long-term parking at St. Louis Lambert International Airport (STL)?

    There are many parking alternatives available at STL Airport, so visitors who want to leave their cars there need not worry. Parking at the STL is reasonably priced, ranging from approximately $7 per day for Economy Parking in the Terminal Parking Garages. Lot B at St. Louis Lambert Airport houses long-term parking lots for roughly $10 per day.

  • What special services are available on flights out of St. Louis?

    Free wheelchair rentals for passengers with mobility issues and aid with movement for travelers with vision impairments are mainly the two special services offered on flights leaving STL Airport. These and other specialist services are offered by STL staff from each airline.  

  • What is St. Louis also known as?

    Lambert-St Louis Airport’s airport code is STL. It can also be referred to as Lambert Field, Lambert-St Louis, St. Louis Lambert, St. Louis Lambert Intl.

  • How does KAYAK find such low prices on flights from 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 St. Louis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis 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 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 your destination with an airline and back to St. Louis with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from 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 from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding a cheap flight out of St. Louis

  • Looking for a cheap flight? 25% of our users found tickets from St. Louis to the following destinations at these prices or less: Atlanta $123 one-way - $245 round-trip; Denver $111 one-way - $170 round-trip; Chicago $185 one-way - $469 round-trip
  • St. Louis Lambert International Airport (STL) is the main airport from which the bulk of flights from St. Louis depart for locations across the world. The cheapest way to go from downtown St. Louis or the city center to STL airport is via public bus. If you want to go to the airport quickly but don't mind spending a little extra money, you can take a taxi.
  • The bulk of daily departures from St. Louis is provided by Alaska Airlines and Delta Airlines at St. Louis Lambert International Airport. As a result, if you purchase a ticket with one of these carriers, you can be certain that it will work with your trip plans regardless of where you want to go.
  • Travelers whose flights from St. Louis depart from STL Airport, which serves as the hub for American Airlines and Southwest Airlines, can take advantage of a number of advantages. Fewer delays and more departures per day are two of the most important advantages they are anticipated to experience.
  • Pets are allowed on most flights leaving St. Louis at STL. The St. Louis Airport has two outdoor areas and four post-security animal relieving spots. By gate A16 in Concourse A is one animal relief facility. Another is located close to gate C24 in Concourse C. In Terminal 2, close to gate E4, there is a third location. The final station is located next to gate E40 in Terminal 2.
  • Travelers from other adjacent cities to St. Louis, such as Berkeley, Hazelwood, and Saint Ann, can readily do so from STL Airport when departing for other areas throughout the world. These venues are dispersed over a 12 km (7.5 miles) area, so getting to STL Airport in St. Louis by bus, taxi, or rental car is straightforward.

Reviews of the top 5 airlines serving from St. Louis to Worldwide

 
Need help choosing which airline to fly with from St. Louis to Worldwide? 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 4242 reviews
7.0Food
8.6Crew
8.1Boarding
7.5Entertainment
8.0Comfort
Airline reviews

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!!

10.0 ExcellentG, Sep 2025LAS - ATL
Read more Southwest reviews

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.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

Passengers need to check in big baggage instead of bringing on the plane. That cause inconvenience for everyone. Otherwise flight was good.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

The food was terrible especially for a 15 hour international flight. The crew was unpleasant as well.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Quick check in. Everything went smooth. I don't know what can be done about airline food.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Terrible. They wouldn't allow me on my flight on the 14th..

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

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

Tastless food and too obvious lack of enthusiasm for service in the economy vesus business class

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

I had no checked baggage but was required to hand over carry on baggage at the door of the plane. There was a lot of overboard space in the plane and I was one of the last ones. I ran to get my carry on but it was gone. I was given back at the plane door in Toronto, so the wait was not as long as it would have been at the carousel.

Given it’s a red-eye into Charolotte, we didn’t get any food. The survey does not include “N/A” so the rating will be skewed.

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

Having to reschedule flights a day later, they loaded by luggage on the wrong plane from Little rock now I have to HOPE they deliver it to where im staying like they said would. International flight crew was very disgruntled and not very friendly.

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

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.

The entertainment package was vast and the selections were very current. Keep updating it was great.

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.

sluggish boarding and arrival procedures, fake nice flight attendants, and lots of delays.

Disaster. They lied every step of the way. We ended up being delayed due to crew and then allegedly abandoned the flight because of a curfew at LGA. No rebooking to LGA at any reasonable time. No hotel. No meal vouchers. Had to sleep in the airport and fly to Newark instead. Will never fly Frontier again.

What I expected, nickeled and dined and a frontier flight attendant loudly complained about her job and lack of communication as she headed to the gate on her cell phone. Not professional.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

After boarding and un-boarding twice over 6+hours, the flight was canceled.

Severe turbulence. Captain never came on to reassure passengers after things settled down.

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