Find flights
Deals
Insights
When to book
FAQs & Tips
Direct Flights
Airlines

STL

€395 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 12/12. 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

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 45,682,092 times on KAYAK, and here's why:

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheap flight deals to St. Louis

 
These are the cheapest deals for flights to St. Louis currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. 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

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Ireland to St. Louis.

Recent one-way flight deals to St. Louis

Only flying one-way? Below are some of the best one-way flight deals from Ireland to St. Louis found on KAYAK recently.

Recent last-minute flight deals to St. Louis

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Ireland to St. Louis.

Recent direct flight deals to St. Louis

The latest deals for direct flights from Ireland to St. Louis so you can sit back and relax without the need for a layover.

Cheap bus & train deals to St. Louis

Find recent round-trip train or bus tickets from Ireland to St. Louis.

All round-trip flight deals to St. Louis

The cheapest plane tickets to St. Louis found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:30 - 11:45DUB-STL
30h 15m3 stops
12:15 - 10:15STL-DUB
16h 00m3 stops
€699
Find Deal
Fri, 6 Dec - Mon, 9 Dec
15:20 - 11:45DUB-STL
26h 25m2 stops
12:15 - 09:00STL-DUB
14h 45m2 stops
€701
Find Deal
Fri, 6 Dec - Mon, 9 Dec
15:20 - 11:45DUB-STL
26h 25m2 stops
12:15 - 09:00STL-DUB
14h 45m2 stops
€703
Find Deal
Fri, 6 Dec - Mon, 9 Dec
05:00 - 13:55DUB-STL
14h 55m1 stop
13:10 - 10:00STL-DUB
14h 50m2 stops
€769Lufthansa
Find Deal
Fri, 6 Dec - Mon, 9 Dec
05:00 - 13:55DUB-STL
14h 55m1 stop
13:10 - 10:05STL-DUB
14h 55m1 stop
€770Lufthansa
Find Deal
Fri, 6 Dec - Mon, 9 Dec
09:00 - 15:06DUB-STL
12h 06m1 stop
13:10 - 10:05STL-DUB
14h 55m1 stop
€793United Airlines
Find Deal
Fri, 6 Dec - Mon, 9 Dec
08:00 - 15:06DUB-STL
12h 06m1 stop
13:00 - 10:05STL-DUB
16h 05m1 stop
€843United Airlines
Find Deal
Mon, 17 Mar - Fri, 28 Mar
08:00 - 15:06DUB-STL
12h 06m1 stop
15:50 - 07:15STL-DUB
10h 25m1 stop
€877Air Canada
Find Deal
Mon, 17 Mar - Sat, 29 Mar
15:20 - 15:57DUB-STL
30h 37m1 stop
06:15 - 08:30STL-DUB
20h 15m1 stop
€940American Airlines
Find Deal
Fri, 20 Dec - Fri, 27 Dec
14:05 - 13:37DUB-STL
29h 32m2 stops
10:16 - 05:15STL-DUB
12h 59m1 stop
€974American Airlines
Find Deal
Fri, 20 Dec - Fri, 27 Dec
06:40 - 23:24DUB-STL
22h 44m2 stops
€395
Find Deal
Thu, 12 Dec
19:25 - 15:21DUB-STL
49h 56m3 stops
€439
Find Deal
Fri, 13 Dec
04:25 - 11:45DUB-STL
37h 20m3 stops
€522
Find Deal
Thu, 12 Dec
17:15 - 16:26DUB-STL
53h 11m3 stops
€537
Find Deal
Tue, 26 Nov
11:30 - 11:45DUB-STL
30h 15m3 stops
€547
Find Deal
Mon, 3 Mar
13:40 - 23:24DUB-STL
15h 44m1 stop
€623
Find Deal
Thu, 12 Dec
16:45 - 15:21DUB-STL
28h 36m2 stops
€641
Find Deal
Fri, 13 Dec
16:45 - 11:41DUB-STL
24h 56m1 stop
€667
Find Deal
Fri, 13 Dec
14:05 - 22:13DUB-STL
14h 08m2 stops
€686American Airlines
Find Deal
Thu, 12 Dec
14:05 - 20:38DUB-STL
12h 33m1 stop
€706American Airlines
Find Deal
Mon, 3 Mar
11:30 - 11:45DUB-STL
30h 15m3 stops
12:15 - 10:15STL-DUB
16h 00m3 stops
€699
Find Deal
Fri, 6 Dec - Mon, 9 Dec
15:20 - 11:45DUB-STL
26h 25m2 stops
12:15 - 09:00STL-DUB
14h 45m2 stops
€701
Find Deal
Fri, 6 Dec - Mon, 9 Dec
15:20 - 11:45DUB-STL
26h 25m2 stops
12:15 - 09:00STL-DUB
14h 45m2 stops
€703
Find Deal
Fri, 6 Dec - Mon, 9 Dec
15:20 - 11:45DUB-STL
26h 25m2 stops
17:00 - 05:15STL-DUB
30h 15m2 stops
€709
Find Deal
Fri, 20 Dec - Fri, 27 Dec
05:00 - 13:55DUB-STL
14h 55m1 stop
13:10 - 10:00STL-DUB
14h 50m2 stops
€769Lufthansa
Find Deal
Fri, 6 Dec - Mon, 9 Dec
05:00 - 13:55DUB-STL
14h 55m1 stop
13:10 - 10:05STL-DUB
14h 55m1 stop
€770Lufthansa
Find Deal
Fri, 6 Dec - Mon, 9 Dec
05:00 - 13:55DUB-STL
14h 55m1 stop
13:10 - 10:00STL-DUB
14h 50m2 stops
€777Lufthansa
Find Deal
Fri, 6 Dec - Mon, 9 Dec
05:00 - 13:55DUB-STL
14h 55m1 stop
13:10 - 10:00STL-DUB
14h 50m2 stops
€786Lufthansa
Find Deal
Fri, 6 Dec - Mon, 9 Dec
05:00 - 13:55DUB-STL
14h 55m1 stop
13:10 - 10:05STL-DUB
14h 55m1 stop
€787Lufthansa
Find Deal
Fri, 6 Dec - Mon, 9 Dec
09:00 - 15:06DUB-STL
12h 06m1 stop
13:10 - 10:05STL-DUB
14h 55m1 stop
€793United Airlines
Find Deal
Fri, 6 Dec - Mon, 9 Dec

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 Thursday where tickets can be as cheap as €800. On the other hand, the most expensive day to fly is Friday, where prices are €968 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 November, where tickets cost €773 on average for one-way flights. On the other hand, the most expensive months are February and June, where the average cost of tickets from Ireland is €1,028 and €1,007 respectively. For return trips, the best month to travel is November with an average price of €773.

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 €757 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 €906.

Good to know

Low season

February

High season

July

Cheapest flight

€395
Best time to beat the crowds but there is an average 16% increase in price.
Most popular time to fly (13% more expensive 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

  • High season is considered to be January, February and March. The cheapest month to fly from Ireland is November.
  • 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, +39 more

ANA, Aer Lingus, +40 more

Tuesday

ANA, Aer Lingus, Aeromexico, +41 more

ANA, Aer Lingus, +42 more

Wednesday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Thursday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Friday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Saturday

ANA, Aer Lingus, Aeromexico, +42 more

ANA, Aer Lingus, +43 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, +39 more

ANA, Aer Lingus, +40 more

Tuesday

ANA, Aer Lingus, Aeromexico, +41 more

ANA, Aer Lingus, +42 more

Wednesday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Thursday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Friday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Saturday

ANA, Aer Lingus, Aeromexico, +42 more

ANA, Aer Lingus, +43 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.
7.1
Aer LingusOverall score based on 1084 reviews
6.5Food
8.0Crew
7.3Boarding
6.8Entertainment
7.1Comfort
Airline reviews

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

6.0 GoodAnonymous, Oct 2024SNN - LHR
Read more Aer Lingus reviews

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Was not aware that Aer Lingus was like the cut-rate services in the states, with no food or beverage (other then 3.50 Euro coffee) and no screens for entertainment. Was a great flight, but not much in the way of services.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

I didn’t realize Aer Lingus was a “nickel and dime” kind of airline where you had to separately buy all the amenities you wanted. The push to purchase duty-free beauty products was off-putting. And our row had the least amount of leg room I’ve ever dealt with on a flight.

We couldn't talk to aer lingus we had issues with the flight change and aer lingus made us talk to kayak

Very pleasant staff, there was some turbulence but the captain was very apologetic and gave notice where possible.

Flight was great. Had to wait almost 100 minutes for luggage (some problem in the delivery). This may not be an Aer Lingus problem, but an SFO problem.

Loved it! Best airline to fly with. Nice crew, good planes, good food!

Great customer service. Frequent updates from the pilot. Smooth flight. Good entertainment. Meal service.

The first leg of my 2 flights were delayed, causing me to miss my second flight and have to stay the whole night in Dublin. Super upset with this experience, and I still need to figure out how to get compensated for this.

Nice crew - very small plane and uncomfortable, with no entertainment options…

was wondreful! just let me know what airline im flying in advance!

On this flight, we didn't even get water offered, nor any other beverage. Therefore we got a snack of pretzels. Flight was good and Air Canada a good airline

I would realllllly like to have been in a seat closer than row FORTY. Needing assistance - longgg way to walk down and back; then they put me in the middle seat-needing to get up for the window seat passenger to go to the washroom etc.

Everything was seamless. I would have appreciated knowing there would not be any real food available for purchase in advance. Otherwise a great experience. Thank you!

The flight was delayed but at least they let us know early about it (the night before)! Everything after that was smooth!

Our seats were changed 3 times in the final 24 hours, and then my wife and I ended up with two middle seats in different rows. Full flight so no changes could be made at the gate.

Air Canada was on schedule, fast, and took care of me the whole flight. With affordable price, I 100% recommend you fly Air Canada if you are able to.

United agent at FLL excellent - due 55 min conx at ORD rerouted us on an earlier departure via DEN and got home 5 hours earlier than expected

I book my air canada flight and i am an aeroplan card holder however I was required to pay for my first check-in bag. Terrible experience

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.
6/12Fri
3 stops
30h 15mDUB-STL
9/12Mon
3 stops
16h 00mSTL-DUB
€699
6/12Fri
2 stops
26h 25mDUB-STL
9/12Mon
2 stops
14h 45mSTL-DUB
€701
6/12Fri
2 stops
26h 25mDUB-STL
9/12Mon
2 stops
14h 45mSTL-DUB
€703
6/12Fri
1 stopLufthansa
14h 55mDUB-STL
9/12Mon
2 stopsLufthansa
14h 50mSTL-DUB
€769
6/12Fri
1 stopLufthansa
14h 55mDUB-STL
9/12Mon
1 stopLufthansa
14h 55mSTL-DUB
€770
6/12Fri
1 stopUnited Airlines
12h 06mDUB-STL
9/12Mon
1 stopUnited Airlines
14h 55mSTL-DUB
€793
17/3Mon
1 stopUnited Airlines
12h 06mDUB-STL
28/3Fri
1 stopUnited Airlines
16h 05mSTL-DUB
€843
17/3Mon
1 stopAir Canada
12h 06mDUB-STL
29/3Sat
1 stopAir Canada
10h 25mSTL-DUB
€877
20/12Fri
1 stopAmerican Airlines
30h 37mDUB-STL
27/12Fri
1 stopAmerican Airlines
20h 15mSTL-DUB
€940
20/12Fri
2 stopsAmerican Airlines
29h 32mDUB-STL
27/12Fri
1 stopAmerican Airlines
12h 59mSTL-DUB
€974

Search by stops

Search by airline

Search by price

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.
12/12Thu
2 stops
22h 44mDUB-STL
€395
13/12Fri
3 stops
49h 56mDUB-STL
€439
12/12Thu
3 stops
37h 20mDUB-STL
€522
26/11Tue
3 stops
53h 11mDUB-STL
€537
3/3Mon
3 stops
30h 15mDUB-STL
€547
12/12Thu
1 stop
15h 44mDUB-STL
€623
13/12Fri
2 stops
28h 36mDUB-STL
€641
13/12Fri
1 stop
24h 56mDUB-STL
€667
12/12Thu
2 stopsAmerican Airlines
14h 08mDUB-STL
€686
3/3Mon
1 stopAmerican Airlines
12h 33mDUB-STL
€706

Search by stops

Search by airline

Search by price

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

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