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Cheap flights from Dublin to St. Louis from €375

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to St. Louis departing on 18/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap return flights

Enter your travel dates to find the best prices.
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 - 22:52
DUB
-
STL
17h 22m
1 stop
American Airlines Logo
14:21 - 17:00
STL
-
DUB
20h 39m
2 stops
€746American Airlines
Fri, 27 Feb - Tue, 3 Mar
Multiple Airlines Logo
12:30 - 14:55
DUB
-
STL
31h 25m
2 stops
Multiple Airlines Logo
16:05 - 18:20
STL
-
DUB
21h 15m
3 stops
€747Multiple Airlines
Tue, 10 Mar - Tue, 17 Mar
Finnair Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
Finnair Logo
12:27 - 09:45
STL
-
DUB
15h 18m
1 stop
€749Finnair
Wed, 6 May - Wed, 20 May
American Airlines Logo
11:30 - 12:33
DUB
-
STL
31h 03m
1 stop
American Airlines Logo
14:21 - 17:00
STL
-
DUB
20h 39m
2 stops
€750American Airlines
Fri, 27 Feb - Tue, 3 Mar
Finnair Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
Finnair Logo
12:27 - 09:45
STL
-
DUB
15h 18m
1 stop
€751Finnair
Wed, 6 May - Wed, 20 May
Multiple Airlines Logo
10:30 - 13:51
DUB
-
STL
32h 21m
2 stops
Multiple Airlines Logo
12:28 - 07:45
STL
-
DUB
14h 17m
1 stop
€763Multiple Airlines
Tue, 10 Mar - Tue, 17 Mar
Iberia Logo
11:30 - 23:02
DUB
-
STL
16h 32m
1 stop
Iberia Logo
14:00 - 08:40
STL
-
DUB
13h 40m
1 stop
€776Iberia
Tue, 10 Mar - Tue, 17 Mar
Iberia Logo
11:30 - 23:02
DUB
-
STL
16h 32m
1 stop
Iberia Logo
14:00 - 08:40
STL
-
DUB
13h 40m
1 stop
€781Iberia
Tue, 10 Mar - Tue, 17 Mar
Multiple Airlines Logo
10:55 - 21:11
DUB
-
STL
15h 16m
2 stops
Multiple Airlines Logo
14:00 - 08:40
STL
-
DUB
13h 40m
1 stop
€783Multiple Airlines
Tue, 10 Mar - Tue, 17 Mar

Iberia flights from Dublin to St. Louis

Our best Iberia deals on Dublin to St. Louis flight tickets
Iberia
30 Jan
DUB11:30Dublin
17h 14m
1 stop
STL22:44Lambert-St Louis
14 Feb
STL13:30Lambert-St Louis
13h 10m
1 stop
DUB08:40Dublin
€751
Iberia
10 Mar
DUB11:30Dublin
16h 32m
1 stop
STL23:02Lambert-St Louis
17 Mar
STL14:00Lambert-St Louis
13h 40m
1 stop
DUB08:40Dublin
€776
Iberia
10 Mar
DUB11:30Dublin
16h 32m
1 stop
STL23:02Lambert-St Louis
17 Mar
STL14:00Lambert-St Louis
13h 40m
1 stop
DUB08:40Dublin
€781

American Airlines flights from Dublin to St. Louis

Our best American Airlines deals on Dublin to St. Louis flight tickets
American Airlines
27 Feb
DUB11:30Dublin
17h 22m
1 stop
STL22:52Lambert-St Louis
3 Mar
STL14:21Lambert-St Louis
20h 39m
2 stops
DUB17:00Dublin
€743
American Airlines
27 Feb
DUB11:30Dublin
17h 22m
1 stop
STL22:52Lambert-St Louis
3 Mar
STL14:21Lambert-St Louis
20h 39m
2 stops
DUB17:00Dublin
€746
American Airlines
27 Feb
DUB11:30Dublin
31h 03m
1 stop
STL12:33Lambert-St Louis
3 Mar
STL14:21Lambert-St Louis
20h 39m
2 stops
DUB17:00Dublin
€750

momondo Fare Finder

 
Customise your flight search to find flights from Dublin to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 25 January 2026.
Use the filters below to find and compare flights from Dublin to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 27/2

11:30-22:52

1 stop17h 22m

Lambert-St Louis

Tue 3/3

14:21-17:00

2 stops20h 39m

€743

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 27/2

11:30-22:52

1 stop17h 22m

Lambert-St Louis

Tue 3/3

14:21-17:00

2 stops20h 39m

€746

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 10/3

12:30-14:55

2 stops31h 25m

Lambert-St Louis

Tue 17/3

16:05-18:20

3 stops21h 15m

€747

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 6/5

09:30-19:30

1 stop16h 00m

Lambert-St Louis

Wed 20/5

12:27-09:45

1 stop15h 18m

€749

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 27/2

11:30-12:33

1 stop31h 03m

Lambert-St Louis

Tue 3/3

14:21-17:00

2 stops20h 39m

€750

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 6/5

09:30-19:30

1 stop16h 00m

Lambert-St Louis

Wed 20/5

12:27-09:45

1 stop15h 18m

€751

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 10/3

10:30-13:51

2 stops32h 21m

Lambert-St Louis

Tue 17/3

12:28-07:45

1 stop14h 17m

€763

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 10/3

11:30-23:02

1 stop16h 32m

Lambert-St Louis

Tue 17/3

14:00-08:40

1 stop13h 40m

€776

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 10/3

11:30-23:02

1 stop16h 32m

Lambert-St Louis

Tue 17/3

14:00-08:40

1 stop13h 40m

€781

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 10/3

10:55-21:11

2 stops15h 16m

Lambert-St Louis

Tue 17/3

14:00-08:40

1 stop13h 40m

€783

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Dublin to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Dublin and St. Louis?

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

The cheapest month to fly to St. Louis from Dublin is in August. Flight prices, which tend to average around €694, are often lower during this time because this is during the off-season. The month of November is another great option to travel to St. Louis, with average flight prices from Dublin averaging around €717.

How have Dublin to St. Louis flight prices changed over time?

When to book flights from Dublin to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Dublin to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Dublin to St. Louis (DUB to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Dublin to St. Louis

Fastest flight time

16h 00m

Direct flights

None
The fastest flight from Dublin to St. Louis takes 16h 00m
There are no direct flights from Dublin to St. Louis. There are no popular flight routes from Dublin to St. Louis.
Search flight deals

  • How far is Dublin to Lambert-St Louis by plane?

    There are 6292.4 km between Dublin and Lambert-St Louis. Flights usually cover this in 16h 00m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Dublin Airport to Lambert-St Louis Airport?

    Prices for flights from Dublin Airport to Lambert-St Louis Airport are updated daily.

  • How many operators does momondo search for flights from Dublin Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Dublin Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Dublin Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Dublin to St. Louis?

Best airlines flying from Dublin to St. Louis

Compare and see reviews for airlines that fly from Dublin to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom €125Free CancellationRating
7.2
11,197 reviews
Search American Airlines flights
United AirlinesPriceFrom €696Free CancellationRating
7.4
9,198 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Dublin to St. Louis?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Dublin to St. Louis. momondo saves you time and could save you money on your trip.

Can I find flights from Dublin to St. Louis with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to St. Louis from Dublin with this policy.

How can momondo help me find flights from Dublin to St. Louis?

momondo provides multiple filters to help you find the best flight to St. Louis from Dublin. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Dublin to St. Louis right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Dublin to St. Louis flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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