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Find cheap flights to St. Louis from €270

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 30/5. 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 6/6
Thu 13/6

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 43,707,506 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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
05:55 - 21:55DUB-STL
22h 00m2 stops
06:00 - 08:45STL-DUB
20h 45m1 stop
€792Delta
Find Deal
Sat, 15 Jun - Mon, 1 Jul
05:55 - 21:55DUB-STL
22h 00m2 stops
11:25 - 12:35STL-DUB
19h 10m2 stops
€795Delta
Find Deal
Sat, 15 Jun - Mon, 1 Jul
09:30 - 22:02DUB-STL
18h 32m1 stop
12:44 - 09:45STL-DUB
15h 01m1 stop
€823Finnair
Find Deal
Sat, 15 Jun - Mon, 1 Jul
10:15 - 21:05DUB-STL
16h 50m1 stop
16:05 - 08:15STL-DUB
10h 10m1 stop
€1,013Air Canada
Find Deal
Wed, 10 Jul - Wed, 17 Jul
09:50 - 15:21DUB-STL
11h 31m1 stop
06:08 - 10:20STL-DUB
22h 12m2 stops
€1,042United Airlines
Find Deal
Wed, 10 Jul - Wed, 17 Jul
10:15 - 15:21DUB-STL
35h 06m2 stops
16:05 - 08:30STL-DUB
34h 25m2 stops
€1,048Air Canada
Find Deal
Wed, 10 Jul - Wed, 17 Jul
09:50 - 15:21DUB-STL
11h 31m1 stop
10:10 - 08:15STL-DUB
16h 05m1 stop
€1,818
Find Deal
Fri, 16 Aug - Mon, 19 Aug
10:15 - 21:05DUB-STL
16h 50m1 stop
16:05 - 08:30STL-DUB
34h 25m2 stops
€1,935Air Canada
Find Deal
Fri, 16 Aug - Mon, 19 Aug
10:15 - 21:05DUB-STL
16h 50m1 stop
16:05 - 08:15STL-DUB
10h 10m1 stop
€1,938Air Canada
Find Deal
Fri, 16 Aug - Mon, 19 Aug
09:05 - 19:14DUB-STL
16h 09m2 stops
16:05 - 08:15STL-DUB
10h 10m1 stop
€1,954
Find Deal
Fri, 16 Aug - Mon, 19 Aug

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 €759. On the other hand, the most expensive day to fly is Monday, where prices are €932 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 €719 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 €1,081 and €1,023 respectively. For return trips, the best month to travel is February with an average price of €719.

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 €765 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 €876.

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 13h 04m.

Good to know

Low season

March

High season

October

Cheapest flight

€270
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (2% 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 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 1,430 per week, followed by American Airlines with 365 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, +38 more

ANA, Aer Lingus, +39 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, +38 more

ANA, Aer Lingus, +39 more

Saturday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Sunday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

See more direct flights

Direct returns

Lambert-St Louis to Ireland

Monday

ANA, Aer Lingus, Aeromexico, +38 more

ANA, Aer Lingus, +39 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, +38 more

ANA, Aer Lingus, +39 more

Saturday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Sunday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

See more direct flights
See more direct flights

Top 3 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.
7.4
United AirlinesOverall score based on 11073 reviews
7.7Boarding
8.1Crew
6.7Food
7.2Comfort
7.1Entertainment
Airline reviews

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

10.0 ExcellentAnonymous, May 2024ABE - EWR
Read more about United Airlines reviews

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

It was okay, no wifi or entertainment real disappointment. Staff onboard not very friendly.

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

It started with multiple delays, cancellations, re booking, 5 hour lay over and finally on a plane from Chicago to Pittsburgh. Gates, times, etc were changed multiply times. Once on the plane, staff was fine, but built in tv did not work and could not even turn it off. Light at eye level the entire trip, so sleeping was near impossible. No snacks or drinks given.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Only water and pretzels served on six hour flight. Did not see crew rest of flight. No video screens and so no wired audio. Poor sound on plan so did not understand anything said by crew. This is a safety issue. Electrical socket did not retain charging block so could not charge phone. No video screen so could not watch movies. Phone is not a substitute.

It was fine. Flight was on time and arrived at destination with 15 min to spare.

My bag was lost with my medicine and I am very inconvenienced. I don’t know what happened, however I want you to do a better job on getting people’s bag back

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The food that was offered based on class level of your ticket was absolutely ridiculous and disgusting. They didn't even hot tea to serve, the food was horrible. On our departure flight I was seated in premium plus economy and considering the cost of the flight the food was literally some of the worst I've ever eaten. On the return flight I sat in economy with extra leg room and was given a thin little throw "blanket" and a flimsy little pillow. The air condition was on artic and the seating arrangement wasn't really worth the money. The seat didn't recline good enough and the foot rest was laughable. Total waste.

Short flight so not much to rate. Surprised I had to pay for a soda.

the room on the plane was good but that is because flight not sold the other three seat and I had room. the food in terrible.

First the price I paid was excellent, my flight was full, but my seat was roomy. The one downside to the experience was they had games on the entertainment console. The guy behind me poked at my head about half the flight. I hope they get rid of this feature.

Very good need to offer better choice of food for business

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.

Coach seats are too tight. Seem designed for small people. Food different but OK. Staff helpful.

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

Spending 10 hours on a flight with no video or wifi access due to issues per stewardess was not enjoyable nor acceptable. Will follow up directly with the airline as well

I really did not like being ordered to pull my shade down by the attendants. One of them was very rude to me about it, standing there until I closed it like I was a child brusquely reaching across me to close an adjoining one. They claim it was so people who wanted to could sleep. It’s a 10:30am flight not a red eye. Closing your shade or leaving it up for natural light should be a choice. Ruined my flight!

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

The crew was very attentive and kept busy serving a variety of treats!

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

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.
15/6Sat
2 stopsDelta
22h 00mDUB-STL
1/7Mon
1 stopDelta
20h 45mSTL-DUB
€792
15/6Sat
2 stopsDelta
22h 00mDUB-STL
1/7Mon
2 stopsDelta
19h 10mSTL-DUB
€795
15/6Sat
1 stopFinnair
18h 32mDUB-STL
1/7Mon
1 stopFinnair
15h 01mSTL-DUB
€823
10/7Wed
1 stopAir Canada
16h 50mDUB-STL
17/7Wed
1 stopAir Canada
10h 10mSTL-DUB
€1,013
10/7Wed
1 stopUnited Airlines
11h 31mDUB-STL
17/7Wed
2 stopsUnited Airlines
22h 12mSTL-DUB
€1,042
10/7Wed
2 stopsAir Canada
35h 06mDUB-STL
17/7Wed
2 stopsAir Canada
34h 25mSTL-DUB
€1,048
16/8Fri
1 stop
11h 31mDUB-STL
19/8Mon
1 stop
16h 05mSTL-DUB
€1,818
16/8Fri
1 stopAir Canada
16h 50mDUB-STL
19/8Mon
2 stopsAir Canada
34h 25mSTL-DUB
€1,935
16/8Fri
1 stopAir Canada
16h 50mDUB-STL
19/8Mon
1 stopAir Canada
10h 10mSTL-DUB
€1,938
16/8Fri
2 stops
16h 09mDUB-STL
19/8Mon
1 stop
10h 10mSTL-DUB
€1,954

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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.
30/5Thu
3 stops
52h 40mDUB-STL
€270
25/10Fri
3 stops
40h 50mDUB-STL
€383
30/5Thu
2 stops
30h 08mDUB-STL
€400
25/10Fri
2 stops
27h 13mDUB-STL
€454
22/7Mon
2 stopsWestJet
30h 16mDUB-STL
€608
25/10Fri
1 stopAmerican Airlines
28h 19mDUB-STL
€714
22/7Mon
1 stopAmerican Airlines
18h 09mDUB-STL
€835
20/8Tue
2 stopsWestJet
31h 28mDUB-STL
€1,210
20/8Tue
1 stopKLM
15h 34mDUB-STL
€1,616
20/8Tue
1 stopAer Lingus
11h 39mDUB-STL
€2,014

Search by stops

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Search by price

Recent domestic flight deals

24/5Fri
multi-stopSun Country Air
24h 00mDEN-STL
26/5Sun
multi-stopSun Country Air
15h 40mSTL-DEN
€172
28/5Tue
multi-stopDelta
7h 20mIAD-STL
30/5Thu
multi-stopDelta
3h 40mSTL-IAD
€175
29/5Wed
multi-stopDelta
5h 22mDCA-STL
31/5Fri
multi-stopDelta
6h 57mSTL-DCA
€175
28/5Tue
directAlaska Airlines
4h 00mSEA-STL
29/5Wed
directAlaska Airlines
4h 19mSTL-SEA
€220
3/6Mon
directSouthwest
2h 10mDCA-STL
4/6Tue
directSouthwest
2h 00mSTL-DCA
€223
3/6Mon
multi-stopSouthwest
9h 55mDCA-STL
4/6Tue
directSouthwest
2h 00mSTL-DCA
€227
28/5Tue
directAlaska Airlines
4h 00mSEA-STL
30/5Thu
directAlaska Airlines
4h 14mSTL-SEA
€239
2/7Tue
multi-stopUnited Airlines
7h 03mIAD-STL
6/7Sat
directUnited Airlines
2h 10mSTL-IAD
€271
29/6Sat
directUnited Airlines
2h 38mEWR-STL
6/7Sat
directUnited Airlines
2h 26mSTL-EWR
€278
18/5Sat
multi-stopSpirit Airlines
6h 23mEWR-STL
21/5Tue
multi-stopSpirit Airlines
10h 14mSTL-EWR
€297

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Flights to St. Louis

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Ireland

Cabin classes: