STL

€346 Find Cheap Flights 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 to St. Louis departing on 18/6. 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

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 for flights 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 for flights to St. Louis, as well as popular online travel agencies
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Cheap Flight Deals to St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights 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.

Recent return flight deals to St. Louis

KAYAK's recommended return flight deals from the most popular airlines that fly to St. Louis.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Scandinavian Airlines Logo
19:05 - 23:36DUB-STL
34h 31m2 stops
Scandinavian Airlines Logo
16:05 - 18:15STL-DUB
20h 10m2 stops
€653Scandinavian Airlines
Find Deal
Fri, 2 May - Mon, 5 May
 Logo
12:15 - 11:45DUB-STL
29h 30m3 stops
 Logo
13:00 - 11:05STL-DUB
16h 05m3 stops
€673
Find Deal
Fri, 2 May - Mon, 5 May
KLM Logo
05:55 - 15:00DUB-STL
15h 05m2 stops
KLM Logo
17:45 - 10:00STL-DUB
10h 15m1 stop
€757KLM
Find Deal
Mon, 26 May - Mon, 2 Jun
KLM Logo
05:55 - 14:32DUB-STL
14h 37m2 stops
KLM Logo
10:42 - 08:45STL-DUB
16h 03m1 stop
€758KLM
Find Deal
Fri, 2 May - Mon, 5 May
Delta Logo
08:55 - 23:26DUB-STL
20h 31m2 stops
Delta Logo
13:09 - 10:00STL-DUB
14h 51m2 stops
€768Delta
Find Deal
Sun, 25 May - Sun, 1 Jun
Delta Logo
05:55 - 14:54DUB-STL
14h 59m2 stops
Delta Logo
15:45 - 08:45STL-DUB
11h 00m1 stop
€773Delta
Find Deal
Sun, 25 May - Sun, 1 Jun
American Airlines Logo
11:45 - 18:59DUB-STL
13h 14m1 stop
American Airlines Logo
07:34 - 05:30STL-DUB
15h 56m1 stop
€787American Airlines
Find Deal
Sat, 20 Sep - Sat, 4 Oct
American Airlines Logo
11:45 - 21:24DUB-STL
15h 39m1 stop
American Airlines Logo
05:12 - 05:30STL-DUB
18h 18m1 stop
€794American Airlines
Find Deal
Fri, 2 May - Mon, 5 May
Air Canada Logo
09:50 - 21:48DUB-STL
17h 58m2 stops
Air Canada Logo
17:29 - 08:15STL-DUB
32h 46m2 stops
€862Air Canada
Find Deal
Thu, 24 Apr - Fri, 2 May
Air Canada Logo
09:50 - 14:49DUB-STL
10h 59m1 stop
Air Canada Logo
13:30 - 08:15STL-DUB
36h 45m2 stops
€891Air Canada
Find Deal
Sat, 26 Apr - Thu, 1 May

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

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

What is the cheapest day to fly to St. Louis?

The average price of all round-trip flights to St. Louis clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to St. Louis is Thursday where round-trip tickets can be as cheap as €768. On the other hand, the most expensive day to fly is Tuesday, where round-trip prices are €956 on average.

What is the cheapest month to fly to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights 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 to St. Louis is February, where tickets cost €753 on average for return flights. On the other hand, the most expensive months are July and January, where the average cost of tickets from Ireland is €939 and €925 respectively. For one-way flights, the best month to travel is February with an average price of €753.

What is the cheapest time of day to fly to St. Louis?

The average price for all round-trip flights to St. Louis depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to St. Louis is generally in the afternoon, when round-trip flights cost €797 on average. The most expensive time of day to fly to St. Louis is generally in the morning, which is peak travel time and where the average cost of a ticket is €979.

Good to know – Book Cheap St. Louis Plane Tickets

Low season

August

High season

April

Cheapest flight

€346
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Dublin to St. Louis

When to book flights to St. Louis

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

FAQs - booking St. Louis flights

  • How far is Lambert-St Louis Airport from central St. Louis?

    There are 20 km between St. Louis city centre and Lambert-St Louis Airport.

  • What is the name of St. Louis’s airport?

    St. Louis is served by Lambert-St Louis Airport, also commonly referred to as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl. The airport code is STL.

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

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

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

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 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 cheap flights to St. Louis

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest St. Louis flight deals.

Prefer to fly direct to Lambert-St Louis?

Find which airlines fly direct to Lambert-St Louis Airport, which days they fly and book direct flights.

Direct departures

Ireland to Lambert-St Louis

Monday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Tuesday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Wednesday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Thursday

ANA, Aer Lingus, Aeromexico, +41 more

ANA, Aer Lingus, +42 more

Friday

ANA, Aer Lingus, Aeromexico, +43 more

ANA, Aer Lingus, +44 more

Saturday

ANA, Aer Lingus, Aeromexico, +41 more

ANA, Aer Lingus, +42 more

Sunday

ANA, Aer Lingus, Aeromexico, +42 more

ANA, Aer Lingus, +43 more

See more direct flights

Direct returns

Lambert-St Louis to Ireland

Monday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Tuesday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Wednesday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Thursday

ANA, Aer Lingus, Aeromexico, +41 more

ANA, Aer Lingus, +42 more

Friday

ANA, Aer Lingus, Aeromexico, +43 more

ANA, Aer Lingus, +44 more

Saturday

ANA, Aer Lingus, Aeromexico, +41 more

ANA, Aer Lingus, +42 more

Sunday

ANA, Aer Lingus, Aeromexico, +42 more

ANA, Aer Lingus, +43 more

See more direct flights
See more direct flights

Top airlines flying to St. Louis

 
See real verified KAYAK customer reviews for airlines flying to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to St. Louis. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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.
7.2
American AirlinesOverall score based on 10000 reviews
6.5Food
6.9Entertainment
7.5Boarding
8.0Crew
7.2Comfort
Airline reviews

They lost my luggage and it didn’t get delivered until the next day.

6.0 GoodAnonymous, Apr 2025MGM - CLT
Read more American Airlines reviews

They lost my luggage and it didn’t get delivered until the next day.

Would have thought that they would gas up plane before everyone got on board

3 hours late. Not even water offered on a 2.25 hour flight.

I had a carry on and a personal bag. I put my personal item under my seat and on way to the seat I put my bag up. I usually close my eyes and rest as I was on call for last 36 hours. I heard very loud announcements that someone needs to identify their bag. Pretty sure it was not mine until the hostess pointed out my jacket details attached to the bag. I asked why she got my bag out. I got berated and did not want to create a scene. But this person needs to be talked to.

Terrible. The flight was delayed two hours due to weather. Then when we got on the plane, the first pilot ended up timing out and we had to wait for a second pilot. Second pile came on board and we tax it out. Had to return back to the gate because of an unruly passenger. Then the copilot timed out. Had to wait for new copilot. Also had to wait for maintenance to check for fuel. Then found out the second pilot timed out and we had to wait for a third pilot. Was ready to go and then needed maintenance again for another issue. In the end, it was 2 o’clock in the morning when they announced that the flight couldn’t go because the third pilot and the second copilot had timed out.

To start, I’d like to say that every American Airline personnel I interacted with on the ground, especially flight crew, was very friendly and did their best to help me out. Despite this, however, my experience with the airline was an entire mess. The 7:19 PM flight was heavily delayed due to weather, and pushed to 10:30 AM the next morning. Because of this, I had to spend the night inside of the airport. At some point later in the night, I got an email saying that the flight had been canceled. I called the support number, and the representative on the other line told me that the flight was still on and that I didn’t need to rebook. The next morning, no one came to the gate to open the door for the crew until almost 11 AM. By this time the flight crew had been waiting for over an hour, and they had called management to get someone to open the door for them multiple times. Around 11:30, the gate screen had changed to a different flight. I ended up buying a last minute ticket with Southwest airline just to get to Chicago, because the next flight with American wasn’t until 7:19 pm that day. Now, earlier that morning my suitcase had been sent ahead of me to ORD. I went to baggage claim to ask them if I could have my suitcase forwarded to where I was staying. The representative at SDF baggage claim said they could and put the claim in for me. As I was going back through TSA, I got an email that the airline had found my suitcase, but the next step was to send it BACK to SDF. I called the airline support number again, and I made it clear that my suitcase needed to stay in Chicago and to not come back to SDF. The representative told me that they would hold my suitcase at ORD and that it wasn’t going to be forwarded anywhere. Once I got there, I found that they had loaded my suitcase onto a plane to send it back to SDF. Thankfully, I had gotten to the baggage claim counter in time for them to put in a request to bring my suitcase back up. My refund with the airline is processing already, but because of this entire experience and miscommunication at every turn of the way, I will not book with American Airlines in the future.

American Airlines initially postponed the flight. Then they cancelled it an rescheduled us on a flight that would take over 24 hours with multiple stops. They then changed this flight to a reasonable alternative the next day which they later cancelled and replaced with a flight that would take off with an additional 16 hour delay. They blamed weather but I noticed (at 4am) that Delta had direct flights from Charlotte to Detroit. I went on line. Booked it and was in Detroit buy 9am. The interesting thing is they did a similar thing to a family member just 2 days earlier. I don't think I will fly American unless I have to.

Wonderful crew and early arrival to our destination. It was so nice to have free wifi access and movies too. Thank you!

Very friendly and efficient and smooth boarding. We were even way early arriving at my destination. Thank you.

The flight was late and we missed this connecting flight. American Airlines refused to put us anywhere for the night for their snafu. We had to find our own accommodations in Miami, and it was expensive for a crappy hotel.

It was a lovely flight. Very attentive crew, comfortable seats, good food and entertainment. Highly recommended. Only difficulty was with their app.

Terrible. Flight was delayed for hours and we ended up arriving at our home at 4am after 20+ hours flying.

Staff was friendly helpful also good timing I rate it a 10 out of 10

Flight was cancelled around 45 -1hr minutes before scheduled take off time due to mechanical issues we hadn’t even boarded yet. Had to reroute to Orlando so someone had to drive 2 1/2 to come and get me… the alternative was go through Toronto and get a later flight which didn’t work for my schedule. The flight attendants barely gave anyone a smile…not the same as flying when a client/passenger was important. Very disappointed. By the way I have never ever made a complaint online about any company with feedback…even when I probably should have. The only good experience was the boarding desk associates who were very professional and got me on another flight with my checked bags…very nice team.

Actually as my experience with air Canada from Canada to Newark it was crazy for me because it was a lot of delays which for me it shouldn’t be like that, but I was able to coup with it so that was my experience I hope next time they will do good on that thanks.

Boarding was challenging as we had to use the stairs from the tarmac. Stairs are okay but a roller bag makes it challenging.

Ensure prepaid food arrangements are appropriately understood by flight crew of who purchased and who did not

All was fine. Weather was a bit stormy, but nothing kayak can do about that! 😊

I paid for a comfort class seat and was seated in economy.

Once again our Air Canada flight was delayed! I'm hopeful competition arrives with other airlines soon and maybe they will make a better effort to be on time!

Travelling to a place near St. Louis?

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Fairview Heights
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Everything you need to know for your flight to St. Louis

Information on the airport you'll fly into in St. Louis

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