STL

€291 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 30/4. 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
1 adult, Economy, 0 bags

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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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.

Everything you should know

Cheapest return fare
€690
Typical prices: €775-€830
Multiple Airlines
Fri 17/4Fri 24/4
DUB - STL • 2 stops
Cheapest one-way flight
€291
Typical prices: €556-€656
Multiple Airlines
Thu 30/4
DUB - STL • 3 stops
When to travel
August
Cheapest • 18% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

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

Recent return flight deals to St. Louis

Fri, 17 Apr - Fri, 24 Apr
Multiple Airlines Logo
19:55 - 23:19
DUB
-
STL
33h 24m
2 stops
Multiple Airlines Logo
13:02 - 08:45
STL
-
DUB
13h 43m
1 stop
€690Multiple Airlines
Fri, 22 May - Sun, 24 May
Finnair Logo
09:30 - 23:54
DUB
-
STL
20h 24m
1 stop
Finnair Logo
17:00 - 11:50
STL
-
DUB
12h 50m
1 stop
€700Finnair
Thu, 23 Apr - Thu, 7 May
Finnair Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
Finnair Logo
17:21 - 11:50
STL
-
DUB
12h 29m
1 stop
€714Finnair
Wed, 15 Apr - Sun, 19 Apr
Multiple Airlines Logo
09:35 - 23:19
DUB
-
STL
19h 44m
2 stops
Multiple Airlines Logo
15:25 - 07:55
STL
-
DUB
10h 30m
1 stop
€719Multiple Airlines
Wed, 6 May - Wed, 20 May
Finnair Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
Finnair Logo
17:21 - 11:50
STL
-
DUB
12h 29m
1 stop
€721Finnair
Thu, 23 Apr - Thu, 7 May
Finnair Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
Finnair Logo
17:21 - 11:50
STL
-
DUB
12h 29m
1 stop
€723Finnair
Thu, 23 Apr - Thu, 7 May
Finnair Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
Finnair Logo
17:21 - 11:50
STL
-
DUB
12h 29m
1 stop
€724Finnair
Wed, 15 Apr - Mon, 20 Apr
Finnair Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
Finnair Logo
12:27 - 09:45
STL
-
DUB
15h 18m
1 stop
€735Finnair
Wed, 15 Apr - Sun, 19 Apr
Finnair Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
Finnair Logo
12:27 - 09:45
STL
-
DUB
15h 18m
1 stop
€740Finnair
Wed, 6 May - Wed, 20 May
Finnair Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
Finnair Logo
17:21 - 11:50
STL
-
DUB
12h 29m
1 stop
€745Finnair
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 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 August, where tickets cost €706 on average for one-way flights. On the other hand, the most expensive months are January and July, where the average cost of tickets from Ireland is €1,046 and €982 respectively. For return trips, the best month to travel is August with an average price of €706.

Good to know – Book Cheap St. Louis Plane Tickets

Low seasonAugust
Cheapest flight€291
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly and prices are also 11% 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.

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 airline 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
American AirlinesOverall score based on 11378 reviews
8.0Crew
6.4Food
7.2Comfort
6.9Entertainment
7.5Boarding
Airline reviews

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

8.0 ExcellentCatherine, Mar 2026
STL - LGA
Read more American Airlines reviews

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

My seat was assigned last row behind restrooms No legroom’s I’m very Pettit Still was not comfortable Food choice was excellent

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

Overall good. The pilots and flight attendants are excellent! The equipment was the issue on my First flight as they had to wait for a part to be installed. So the take off was at least 30 minutes later.

The flight attendants as well as the gate agent were out to lunch. Nothing extraordinary about their service. American just keeps getting worse every year.

It was an older plane. First Class was not especially roomy or comfortable. It was a short flight so there were no meal but they did offer mixed nuts which used to be normal but now is rare. Crew member was very polite and professional.

The chicken wrap was tiny ($13 for what looked like a 1/3 of a normal wrap?) and disgusting.

It was a train wreck but on an airplane. First off, flight was delayed then we board only to hear two announcements, First weather delays in Orlando and second backup battery warning on emergency lights. After sitting on the plane for almost 2 hours they have us deplane due to the maintenance issue. We were told they were getting another plane. In the mean time, I notice another American- Orlando flight and ask the gate agent if I can switch. He says he cant help me and I'd have to walk to A13 from A37. Really!? I get down there and get a seat only to get an announcement my original flight was RE-boarding. The Then inflight there's no communication and I notice on flightaware were circling over the Gulf of America. I call the flight attendant and of course she has no clue and apparently 5m later the pilot finally tells us about another delay. Why does American always have these service and delay issues? They are my LAST choice in flights now!

Mediocre would be best description. Food bland. Seat biz class uncomfortable to sleep. Crew never dimmed lights completely in an overnight flight to Europe. Would avoid AA if possible.

For my arriving destination, we were delayed multiple times to the point that we arrived 6 hours after we were originally scheduled. On my flight home, they overbooked and involuntarily removed passengers (including me) from the plane. It was not a good experience.

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Wentzville

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

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