£559 Find Cheap Flights from Ireland to St. Louis – Compare and Save

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Cheap Flights from Ireland to St. Louis

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Ireland to St. Louis

Fri, 20 Nov - Fri, 4 Dec
Multiple Airlines Logo
11:30 - 00:10DUB  Dublin-STL Lambert-St Louis
18h 40m2 stops Reykjavik Keflavik Intl Baltimore/Washington
Multiple Airlines Logo
12:40 - 10:15STL  Lambert-St Louis-DUB Dublin
15h 35m2 stops Baltimore/Washington Reykjavik Keflavik Intl
£644Multiple Airlines
Mon, 21 Dec - Sun, 3 Jan
British Airways Logo
07:35 - 19:52DUB  Dublin-STL Lambert-St Louis
18h 17m2 stops London Heathrow Chicago O'Hare Intl
British Airways Logo
16:32 - 14:55STL  Lambert-St Louis-DUB Dublin
16h 23m2 stops Chicago O'Hare Intl London Heathrow
£659British Airways
Thu, 17 Dec - Thu, 7 Jan
Scandinavian Airlines Logo
19:05 - 00:34DUB  Dublin-STL Lambert-St Louis
35h 29m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
15:48 - 09:25STL  Lambert-St Louis-DUB Dublin
35h 37m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
£678Scandinavian Airlines
Sat, 14 Nov - Wed, 18 Nov
British Airways Logo
06:35 - 17:54DUB  Dublin-STL Lambert-St Louis
17h 19m2 stops London Heathrow Dallas/Fort Worth
British Airways Logo
11:35 - 11:15STL  Lambert-St Louis-DUB Dublin
17h 40m2 stops Chicago O'Hare Intl London Heathrow
£679British Airways
Sat, 13 Mar - Sun, 21 Mar
British Airways Logo
07:35 - 23:50DUB  Dublin-STL Lambert-St Louis
22h 15m2 stops London Heathrow Chicago O'Hare Intl
British Airways Logo
20:02 - 14:55STL  Lambert-St Louis-DUB Dublin
13h 53m2 stops Chicago O'Hare Intl London Heathrow
£683British Airways
Sat, 12 Dec - Sat, 2 Jan
United Airlines Logo
09:00 - 22:30DUB  Dublin-STL Lambert-St Louis
43h 30m2 stops Toronto Pearson Intl Houston George Bush Intcntl
United Airlines Logo
15:00 - 08:10STL  Lambert-St Louis-DUB Dublin
11h 10m1 stop Chicago O'Hare Intl
£823United Airlines
Sat, 12 Dec - Sat, 2 Jan
United Airlines Logo
09:00 - 10:30DUB  Dublin-STL Lambert-St Louis
31h 30m2 stops Toronto Pearson Intl Chicago O'Hare Intl
United Airlines Logo
13:25 - 10:20STL  Lambert-St Louis-DUB Dublin
14h 55m1 stop Washington, D.C. Dulles Intl
£823United Airlines
Thu, 14 Jan - Mon, 18 Jan
United Airlines Logo
09:00 - 15:26DUB  Dublin-STL Lambert-St Louis
12h 26m1 stop Toronto Pearson Intl
United Airlines Logo
08:15 - 07:30STL  Lambert-St Louis-DUB Dublin
17h 15m2 stops Chicago O'Hare Intl Newark
£828United Airlines
Thu, 14 Jan - Mon, 18 Jan
United Airlines Logo
09:00 - 15:26DUB  Dublin-STL Lambert-St Louis
12h 26m1 stop Toronto Pearson Intl
United Airlines Logo
15:03 - 08:10STL  Lambert-St Louis-DUB Dublin
11h 07m1 stop Chicago O'Hare Intl
£828United Airlines
Fri, 11 Dec - Fri, 18 Dec
Aer Lingus Logo
15:50 - 22:17DUB  Dublin-STL Lambert-St Louis
12h 27m1 stop Chicago O'Hare Intl
Aer Lingus Logo
10:00 - 04:15STL  Lambert-St Louis-DUB Dublin
12h 15m1 stop Boston Logan Intl
£947Aer Lingus
Booking Insights

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 are the most popular airlines flying to St. Louis?

The most popular airline among KAYAK users flying to St. Louis is United Airlines, followed by Aer Lingus.

Good to know - Cheap tickets from Ireland to St. Louis

Low season

April

Cheapest flight

£559
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly (5% more expensive on average)
Flight from Dublin to St. Louis

FAQs - booking St. Louis flights

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

    Lambert-St Louis Airport is 13 miles from the centre of St. Louis.

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

    When flying to St. Louis, you'll arrive at Lambert-St Louis Airport (STL). The airport is also known as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl.

  • 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.

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.

Reviews of the top airlines flying from Ireland 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 verified KAYAK customer reviews.
7.3
Aer LingusOverall score based on 1868 reviews
7.5Boarding
6.7Food
7.1Entertainment
7.2Comfort
8.1Crew
Airline reviews

The staff on the flight were utterly brilliant; there was a young man who was particularly exceptional. Boarding was quick and seamless, and service was great! Seats were fab, as was the entertainment and its ease of access

10.0 ExcellentJessica, Oct 2026
Read more Aer Lingus reviews

The staff on the flight were utterly brilliant; there was a young man who was particularly exceptional. Boarding was quick and seamless, and service was great! Seats were fab, as was the entertainment and its ease of access

i’m The staff on my flight were amazing as always, beautiful professional staff, they do amazing job. the food ? room for improvement

The agents at the boarding desk were not very helpful, however the hostesses on board the flight were great, the food was ok, and there were lots for choices for entertainment. I was stuck in an middle row seat which was a pain on a full flight, but otherwise the flight was great.

The man in front of me reclined the entire flight, including during meals, which was aggravating. My screen had issues with brightness and kept flickering in and out.

Still some confusion about my baggage which was disconcerting. It was nice that there was extra space on the flight for comfort reasons. Staff very friendly

Everything was smooth and the meal was delicious. I really appreciated that Aer Lingus still offers complimentary beverages, food, luggage and headphones. It was nice that the main meal also featured some items typical to Ireland including the wheaten bread and Kerrygold butter. I generally found the flight a quite relaxing and enjoyable experience.

The seats are so close that you have 0 room to move. Not acceptable for an 11 hour flight.

Easy process you definitely need 3 hours to get on board from Fuminchino airport

Amazing, not too crowded, great temp and the meal was good

The crew was good. The flight was not overly crowded so we had some additional space.

Flight was delayed “due to earlier delays of that plane”, so we were nearly three hours late.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Airport terminal was outdated, flight was on a small jet with no wifi

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

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

The flight was canceled the day of the flight. United says it was FAA issue, with some 35 flights canceled and more delayed.

Short flight - no food understandable. Flight was delayed for over an hour. Overall, it was good.

We boarded and buckled and then deplaned due to no pilot. Had to wait over 3 hours for a new pilot. Not weather related, just poor management.

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Litchfield
Chesterfield
Maryland Heights
Eureka
Farmington
St. Charles
Fenton
Edwardsville
Hermann
Collinsville
Festus
Clayton
Alton
Florissant

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