DUB - STL

€402 Find Cheap Flights from Dublin 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 from Dublin to St. Louis departing on 9/2. 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 in flight searches from Dublin 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 in flight searches from Dublin to St. Louis, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
€702
Typical prices: €811-€996
Multiple Airlines
Fri 1/5Sat 9/5
DUB - STL • 2 stops
Cheapest one-way flight
€402
Typical prices: €494-€549
Multiple Airlines
Mon 9/2
DUB - STL • 3 stops
Top airlines
Finnair
Cheapest • from €709 (return)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
August
Cheapest • 17% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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 from Dublin to St. Louis (DUB-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Dublin 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 from Dublin to St. Louis

Fri, 1 May - Sat, 9 May
Multiple Airlines Logo
06:50 - 23:19
DUB
-
STL
22h 29m
2 stops
Multiple Airlines Logo
08:53 - 05:10
STL
-
DUB
14h 17m
1 stop
€702Multiple Airlines
Wed, 6 May - Wed, 20 May
Finnair Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
Finnair Logo
16:46 - 11:50
STL
-
DUB
13h 04m
1 stop
€706Finnair
Fri, 1 May - Sat, 9 May
Finnair Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
Finnair Logo
16:46 - 11:50
STL
-
DUB
13h 04m
1 stop
€709Finnair
Fri, 27 Feb - Tue, 3 Mar
American Airlines Logo
11:30 - 22:52
DUB
-
STL
17h 22m
1 stop
American Airlines Logo
14:21 - 17:00
STL
-
DUB
20h 39m
2 stops
€743American Airlines
Fri, 27 Feb - Tue, 3 Mar
American Airlines Logo
11:30 - 23:35
DUB
-
STL
18h 05m
2 stops
American Airlines Logo
14:21 - 17:00
STL
-
DUB
20h 39m
2 stops
€747American Airlines
Fri, 27 Feb - Tue, 3 Mar
American Airlines Logo
11:30 - 22:52
DUB
-
STL
17h 22m
1 stop
American Airlines Logo
10:37 - 12:10
STL
-
DUB
19h 33m
2 stops
€748American Airlines
Sat, 21 Feb - Sat, 28 Feb
Multiple Airlines Logo
11:30 - 21:12
DUB
-
STL
15h 42m
2 stops
Multiple Airlines Logo
13:30 - 09:50
STL
-
DUB
14h 20m
2 stops
€749Multiple Airlines
Sat, 21 Feb - Sat, 28 Feb
Iberia Logo
11:30 - 22:52
DUB
-
STL
17h 22m
1 stop
Iberia Logo
13:30 - 08:40
STL
-
DUB
13h 10m
1 stop
€751Iberia
Wed, 6 May - Wed, 20 May
Finnair Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
Finnair Logo
12:27 - 09:45
STL
-
DUB
15h 18m
1 stop
€753Finnair
Wed, 6 May - Wed, 20 May
Finnair Logo
09:40 - 22:14
DUB
-
STL
18h 34m
2 stops
Finnair Logo
16:46 - 11:50
STL
-
DUB
13h 04m
1 stop
€770Finnair
Booking Insights

KAYAK's insights & trends for Dublin to St. Louis flights

Get data-powered insights and trends into flights from Dublin to St. Louis to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Dublin to St. Louis?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Dublin to St. Louis departing in May.

What is the cheapest month to fly from Dublin to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dublin 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 from Dublin to St. Louis is August, where tickets cost €686 (return) on average. On the other hand, the most expensive months are January and May, where the average cost of round-trip tickets is €1,017 and €930 respectively.

Good to know

Low seasonAugust
Cheapest flight€402
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly and prices are also 10% lower on average.
Flight from Dublin to St. Louis

When to book flights from Dublin to St. Louis

Are your dates flexible? Find out the best times to travel from Dublin 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. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Dublin to St. Louis

  • What is the cheapest flight from Dublin to St. Louis?

    In the last 3 days, the lowest price for a flight from Dublin to St. Louis was €402 for a one-way ticket and €625 for a return.

  • Which airports will I be using when flying from Dublin to St. Louis?

    On your way to St. Louis, you’ll fly out from Dublin. You’ll be landing at Lambert-St Louis.

  • Which aircraft models fly most regularly from Dublin to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Dublin to St. Louis?

    oneworld, and Star Alliance are the airline alliances operating flights between Dublin and St. Louis, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Dublin to St. Louis, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Dublin to St. Louis are United Airlines and American Airlines. With an average price for the route of €850 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of €933 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Dublin 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 from Dublin to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Dublin to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Dublin is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Dublin to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to St. Louis with an airline and back to Dublin with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Dublin 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 from Dublin up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Dublin to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Dublin to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dublin 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 9215 reviews
7.1Entertainment
8.1Crew
7.7Boarding
7.3Comfort
6.6Food
Airline reviews

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

8.0 ExcellentAnonymous, Jan 2026
ORD - TPA
Read more United Airlines reviews

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

This Japanese airline provides great service and very helpful in assisting their passengers.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

I so appreciate the crew members on each flight of United. They are outstanding.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

Crew was helpful and cheerful especially when they had no refreshments to work with. The plane was never serviced and had nothing but limited water and coffee onboard. For the price point, a concern of services.

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

On time on a day with lots of weather cancellations on other flights. Thank you for getting me home during a winter storm!

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

We were upgraded to Business Class. So comfortable with great service and food options

The flight attendant use 1.5 hours to answer my call. My dirty food tray was unattended.

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

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

Information on your arrival and departure airports