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Find cheap flights to St. Louis from €387

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 15/6. 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
0 bags
Thu 18/4
Thu 25/4

Search hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results 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
In the last 7 days, travellers have searched 47,600,107 times on KAYAK, and here's why:

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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 round-trip 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.
11:35 - 20:29DUB-STL
14h 54m1 stop
07:00 - 11:45STL-DUB
22h 45m1 stop
€557
Find Deal
Wed, 17 Apr - Wed, 24 Apr
11:10 - 21:17DUB-STL
16h 07m2 stops
10:01 - 08:45STL-DUB
16h 44m1 stop
€792KLM
Find Deal
Wed, 17 Apr - Wed, 24 Apr
11:10 - 21:17DUB-STL
16h 07m2 stops
15:06 - 10:25STL-DUB
13h 19m2 stops
€795KLM
Find Deal
Wed, 17 Apr - Wed, 24 Apr
13:15 - 22:56DUB-STL
15h 41m1 stop
06:37 - 08:35STL-DUB
19h 58m1 stop
€808
Find Deal
Sun, 25 Aug - Sun, 1 Sep
11:45 - 20:29DUB-STL
14h 44m2 stops
16:41 - 05:00STL-DUB
30h 19m1 stop
€819American Airlines
Find Deal
Thu, 18 Apr - Sun, 21 Apr
11:45 - 20:29DUB-STL
14h 44m2 stops
11:07 - 05:55STL-DUB
12h 48m2 stops
€819American Airlines
Find Deal
Thu, 18 Apr - Sun, 21 Apr
09:50 - 14:16DUB-STL
34h 26m2 stops
11:25 - 09:45STL-DUB
16h 20m2 stops
€846United Airlines
Find Deal
Sat, 15 Jun - Mon, 1 Jul
10:55 - 20:11DUB-STL
15h 16m2 stops
13:06 - 11:40STL-DUB
16h 34m1 stop
€992British Airways
Find Deal
Sun, 25 Aug - Sun, 1 Sep
10:55 - 20:11DUB-STL
15h 16m2 stops
16:20 - 12:25STL-DUB
14h 05m2 stops
€1,003British Airways
Find Deal
Sun, 25 Aug - Sun, 1 Sep
13:55 - 20:55DUB-STL
13h 00m1 stop
12:46 - 09:45STL-DUB
14h 59m1 stop
€1,040Iberia
Find Deal
Wed, 3 Jul - Wed, 10 Jul

Flights to St. Louis - Travel Insights & Trends

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 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 Tuesday where tickets can be as cheap as €778. On the other hand, the most expensive day to fly is Monday, where prices are €955 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 January, where tickets cost €635 on average for one-way flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from Ireland is €1,112 and €953 respectively. For return trips, the best month to travel is January with an average price of €635.

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

The average price for all 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 flights cost €751 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 €868.

How far in advance should I book a flight to St. Louis?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 58 days before departure.

How long is the flight to St. Louis?

The duration of your flight to St. Louis depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular route to St. Louis on KAYAK is from Dublin, which takes 12h 37m.

How many long-haul flights are there to St. Louis each week?

Each week there are around 3 long-haul flights (6-12 hour flight duration), 13 medium-haul (3-6 hour flight duration) and 2,507 short-haul (up to 3 hour flight duration) flights to St. Louis. The most long-haul flights depart from Frankfurt am Main Airport.

Good to know

Low season

November

High season

March

Cheapest flight

€387
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly and prices are also 7% 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 St. Louis from central St. Louis?

    There are 20 km between St. Louis city centre and St. Louis.

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

    St. Louis is served by St. Louis, 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.

  • Which airline offers the most flights to St. Louis?

    Of the 9 airlines that fly to St. Louis, Southwest offers the most flights, with around 1,603 per week, followed by American Airlines with 378 flights per week.

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, which days they fly and book direct flights.

Direct departures

Ireland to Lambert-St Louis

Monday

ANA, Aer Lingus, Aeromexico, +37 more

ANA, Aer Lingus, +38 more

Tuesday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Wednesday

ANA, Aer Lingus, Aeromexico, +37 more

ANA, Aer Lingus, +38 more

Thursday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Friday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Saturday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Sunday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

See more direct flights

Direct returns

Lambert-St Louis to Ireland

Monday

ANA, Aer Lingus, Aeromexico, +37 more

ANA, Aer Lingus, +38 more

Tuesday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Wednesday

ANA, Aer Lingus, Aeromexico, +37 more

ANA, Aer Lingus, +38 more

Thursday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Friday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Saturday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Sunday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

See more direct flights
See more direct flights

Top 3 airlines flying to St. Louis

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 KAYAK reviews.
7.4
United AirlinesOverall score based on 11602 reviews
81crew
74overall
71entertainment
72comfort
77boarding
67food
Airline reviews

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Read more about United Airlines

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

One of the best flying experiences I’ve ever had.

737 Max was leaking water into the cabin through the windows. Overhead bins opened on landing. Bad bad plane.

Unfortunately this is not a happy ending comment. Positive: flown United before no issue Negative: it only takes one bad experience to not plan future travel with United Cancún departure was delayed by 1h20 minutes, connection in Chicago was 1h30 minutes. Flight departure time 6:08 Miraculously 7 of us ran 4 kilometres through Chicago to arrive at 6:00 to be told very rudely by the 2 unprofessional United attendants you missed your flight and that we should of arrived early. Did I mention that reason I was flying? I received a call that my brother was dying and to get home. They provided no assistance would not answer any of our questions, ignorantly walked away. Deplorable

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

This flight was a code share on Air New Zealand.

The plane boarded and deplaned twice before the crew timed out. Flight was 7 hours late departing. Horrible experience!

Boarding process was well organized and orderly even though flight was fairly full. Water bottles were provided during boarding which was great as I drink a lot of water. Bathroom was not as clean as it could have been but was acceptable and fairly dry. Food however was mediocre. I have had better food on 2 hour local flights in other countries.

Over two hours wait to get wheelchair assistance from arrival to the departure gate for LA was unreasonable even though there appreared to be heavy demand.

The overall ambiance was good. Seating ain the last row not so pleasant.

They should. Heck planes more often not when they are suppose to be leaving causing delays

Crew was fantastic got lovely food and plenty of water. Entertainment was good. Never had to ask for anything. Left on time and got to Seattle early. Luggage did not take long either.

Always find Aer Lingus reliable and good value for money. Food on this flight was pretty basic and the headphone Jack at my seat only worked for one ear. Little disappointed in movie selection, limited on recent releases. Staff are okay - but I always buy a cheap ticket so not like I expect first class opulence anyway!!!

Boarding was so quick, flight was ahead of time which is great and the pilot spoke clearly and was letting people know everything, amazing, love travelling with you 😊

Great hospitality and service! Seats are better cushioned then some

Great hospitality and service! Seats could always be cushioned better.

Excellent long haul experience really enjoyed using Dublin pre-immigration

Nice easy flight. Crew was very nice and of all the times I have bought a seat for my guitar - this was the easiest. They were prepared and no problems at all.

Air Lingus flights were delayed on each of the three flights we took. Not a very good , and organized airline.

Flight was ontime, clean, staff was friendly - there was turbulence but can’t avoid that (it’s a flight 😉)! The staff were attentive but would be nice if Aerlingus didn’t charge for coffee ☺️ but overall I enjoyed my flight experience and will travel with them again (Ireland’s Four star airline

The crew on this flight were excellent. They were friendly and attentive. It really made the flight more enjoyable.

I sat in the last row of seats. On an 8 hour flight they allowed folks to stand and talk and drink in the back area near the toilets the whole time. They were at times loud and in the way. It was a little annoying. The crew on this trip were pretty mediocre and the plane was littered with trash when we disembarked.

Boarding process needs to be improved. Business class passengers were told to stand in the economy line and vice versa.

I travelled on biz class and f there is no water in the toilette to wash my hands I would expect to have this indicated somehow and not just finding out when I'm there expecting to be able to wash my hands and teeth. Also this is in general that it is always so rushy at the end of these kind of long flights. It is like we are sitting there for 9 hours and the last 1.5 hours just feels like I have time for nothing. Because food comes and at the same time we are close to destination everyone tries to pack their stuff and go to toilette and eat and everything :))) not that like I would know a good solution here I just wanted to raise this :)

Emergency row seat less comfortable than promoted. Restricted by emergency life raft storage.

Better communication to those connecting flights and have a customer care desk at the airports

American was good / British Airways partner was not as good…

The entertainment system in our row was not working. That makes for a VERY long flight!!

A little more legroom, and maybe a little bit of food

Pre flight food options were not working and made the flight not enjoyable. Post experiences of British airways have been positive, but this is enough to stop me using British airways again

Book Cheap St. Louis Plane Tickets

Recent return flight deals

 
These are the cheapest return flights to St. Louis found on KAYAK in the last 72 hours.
17/4Wed
1 stop
14h 54mDUB-STL
24/4Wed
1 stop
22h 45mSTL-DUB
€557
17/4Wed
2 stopsKLM
16h 07mDUB-STL
24/4Wed
1 stopKLM
16h 44mSTL-DUB
€792
17/4Wed
2 stopsKLM
16h 07mDUB-STL
24/4Wed
2 stopsKLM
13h 19mSTL-DUB
€795
25/8Sun
1 stop
15h 41mDUB-STL
1/9Sun
1 stop
19h 58mSTL-DUB
€808
18/4Thu
2 stopsAmerican Airlines
14h 44mDUB-STL
21/4Sun
1 stopAmerican Airlines
30h 19mSTL-DUB
€819
18/4Thu
2 stopsAmerican Airlines
14h 44mDUB-STL
21/4Sun
2 stopsAmerican Airlines
12h 48mSTL-DUB
€819
15/6Sat
2 stopsUnited Airlines
34h 26mDUB-STL
1/7Mon
2 stopsUnited Airlines
16h 20mSTL-DUB
€846
25/8Sun
2 stopsBritish Airways
15h 16mDUB-STL
1/9Sun
1 stopBritish Airways
16h 34mSTL-DUB
€992
25/8Sun
2 stopsBritish Airways
15h 16mDUB-STL
1/9Sun
2 stopsBritish Airways
14h 05mSTL-DUB
€1,003
3/7Wed
1 stopIberia
13h 00mDUB-STL
10/7Wed
1 stopIberia
14h 59mSTL-DUB
€1,040

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to St. Louis found on KAYAK in the last 72 hours.
15/6Sat
2 stopsWestJet
29h 22mDUB-STL
€387
6/5Mon
2 stops
24h 58mDUB-STL
€502
6/5Mon
2 stopsWestJet
31h 38mDUB-STL
€562
12/8Mon
2 stopsWestJet
31h 28mDUB-STL
€623
15/6Sat
3 stops
28h 26mDUB-STL
€636
6/5Mon
3 stops
30h 23mDUB-STL
€641
22/7Mon
2 stopsWestJet
29h 17mDUB-STL
€676
15/6Sat
1 stop
12h 46mDUB-STL
€751
6/5Mon
1 stopDelta
27h 51mDUB-STL
€828
12/8Mon
1 stop
32h 06mDUB-STL
€896

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Recent domestic flight deals

6/6Thu
directDelta
1h 32mMSP-STL
9/6Sun
directDelta
1h 30mSTL-MSP
€144
18/5Sat
directDelta
1h 32mMSP-STL
20/5Mon
directDelta
1h 34mSTL-MSP
€153
16/4Tue
multi-stop
8h 45mEWR-STL
23/4Tue
multi-stop
13h 55mSTL-EWR
€166
16/4Tue
multi-stop
16h 27mEWR-STL
23/4Tue
multi-stop
8h 25mSTL-EWR
€179
13/4Sat
directAlaska Airlines
3h 58mSEA-STL
17/4Wed
directAlaska Airlines
4h 20mSTL-SEA
€218
18/4Thu
multi-stopSun Country Air
16h 53mSEA-STL
21/4Sun
multi-stopSun Country Air
12h 05mSTL-SEA
€225
14/4Sun
directUnited Airlines
2h 27mIAD-STL
16/4Tue
multi-stopUnited Airlines
4h 44mSTL-IAD
€232
11/4Thu
directUnited Airlines
2h 27mIAD-STL
14/4Sun
multi-stopUnited Airlines
4h 42mSTL-IAD
€246
12/4Fri
directAlaska Airlines
3h 54mSEA-STL
19/4Fri
directAlaska Airlines
4h 25mSTL-SEA
€254
30/5Thu
multi-stopSun Country Air
25h 48mEWR-STL
2/6Sun
multi-stopSun Country Air
20h 19mSTL-EWR
€262

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Last minute flights to St. Louis

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to St. Louis that are departing in the next 10 days.
22/3Fri
multi-stopBritish Airways
13h 53mDUB-STL
6/4Sat
multi-stopBritish Airways
15h 42mSTL-DUB
€866
22/3Fri
multi-stopBritish Airways
26h 21mDUB-STL
6/4Sat
multi-stopBritish Airways
19h 46mSTL-DUB
€907
22/3Fri
multi-stopAmerican Airlines
25h 35mDUB-STL
6/4Sat
multi-stopAmerican Airlines
15h 50mSTL-DUB
€910
22/3Fri
multi-stop
29h 10mDUB-STL
6/4Sat
multi-stop
42h 25mSTL-DUB
€1,228

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Flights to St. Louis

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Ireland

Cabin classes: