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Cheap flights from Dublin to St. Louis from €282

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 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Dublin to St. Louis

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
13:45 - 23:33
DUB
-
STL
15h 48m1 stop
Multiple Airlines Logo
12:12 - 09:00
STL
-
DUB
14h 48m1 stop
€718Multiple Airlines
Sat, 24 Jan - Sat, 31 Jan
United Airlines Logo
10:40 - 17:54
DUB
-
STL
13h 14m1 stop
United Airlines Logo
15:11 - 08:10
STL
-
DUB
10h 59m1 stop
€729United Airlines
Sat, 27 Dec - Tue, 20 Jan
Multiple Airlines Logo
13:25 - 13:55
DUB
-
STL
30h 30m2 stops
Multiple Airlines Logo
16:05 - 17:55
STL
-
DUB
19h 50m3 stops
€748Multiple Airlines
Sat, 24 Jan - Sat, 31 Jan
United Airlines Logo
10:40 - 17:54
DUB
-
STL
13h 14m1 stop
United Airlines Logo
15:11 - 08:10
STL
-
DUB
10h 59m1 stop
€750United Airlines
Sat, 27 Dec - Wed, 14 Jan
United Airlines Logo
10:40 - 17:54
DUB
-
STL
13h 14m1 stop
United Airlines Logo
15:11 - 08:10
STL
-
DUB
10h 59m1 stop
€758United Airlines
Mon, 29 Dec - Tue, 20 Jan
Multiple Airlines Logo
13:25 - 13:55
DUB
-
STL
30h 30m3 stops
Multiple Airlines Logo
16:05 - 17:55
STL
-
DUB
19h 50m3 stops
€759Multiple Airlines
Sat, 24 Jan - Sat, 31 Jan
United Airlines Logo
10:40 - 17:54
DUB
-
STL
13h 14m1 stop
United Airlines Logo
15:11 - 08:10
STL
-
DUB
10h 59m1 stop
€779United Airlines
Mon, 29 Dec - Wed, 14 Jan
British Airways Logo
07:35 - 18:34
DUB
-
STL
16h 59m2 stops
British Airways Logo
13:40 - 09:50
STL
-
DUB
14h 10m2 stops
€784British Airways
Sat, 24 Jan - Sat, 31 Jan
United Airlines Logo
10:40 - 16:27
DUB
-
STL
11h 47m1 stop
United Airlines Logo
11:20 - 08:10
STL
-
DUB
14h 50m1 stop
€789United Airlines
Sat, 27 Dec - Thu, 15 Jan
Multiple Airlines Logo
09:00 - 15:29
DUB
-
STL
12h 29m1 stop
Multiple Airlines Logo
12:44 - 10:05
STL
-
DUB
15h 21m2 stops
€793Multiple Airlines
Sat, 24 Jan - Sat, 31 Jan

American Airlines flights from Dublin to St. Louis

Our best American Airlines deals on Dublin to St. Louis flight tickets
American Airlines
5 Mar
DUB13:10Dublin
16h 18m
2 stops
STL23:28Lambert-St Louis
9 Mar
STL14:00Lambert-St Louis
13h 40m
1 stop
DUB08:40Dublin
€827
Find similar
American Airlines
6 May
DUB12:45Dublin
12h 45m
1 stop
STL19:30Lambert-St Louis
20 May
STL09:38Lambert-St Louis
18h 17m
1 stop
DUB09:55Dublin
€869
Find similar
American Airlines
6 May
DUB12:45Dublin
12h 45m
1 stop
STL19:30Lambert-St Louis
20 May
STL06:38Lambert-St Louis
17h 52m
1 stop
DUB06:30Dublin
€870
Find similar

Air Canada flights from Dublin to St. Louis

Our best Air Canada deals on Dublin to St. Louis flight tickets
Air Canada
8 Jan
DUB10:00Dublin
17h 13m
3 stops
STL21:13Lambert-St Louis
15 Jan
STL16:05Lambert-St Louis
17h 35m
2 stops
DUB15:40Dublin
€1,034
Find similar
Air Canada
23 Jan
DUB10:00Dublin
17h 13m
3 stops
STL21:13Lambert-St Louis
5 Feb
STL16:05Lambert-St Louis
17h 35m
2 stops
DUB15:40Dublin
€1,084
Find similar

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 12 December 2025.
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

Sat 24/1

13:45-23:33

1 stop15h 48m

Lambert-St Louis

Sat 31/1

12:12-09:00

1 stop14h 48m

€718

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 27/12

10:40-17:54

1 stop13h 14m

Lambert-St Louis

Tue 20/1

15:11-08:10

1 stop10h 59m

€729

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 24/1

13:25-13:55

2 stops30h 30m

Lambert-St Louis

Sat 31/1

16:05-17:55

3 stops19h 50m

€748

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 27/12

10:40-17:54

1 stop13h 14m

Lambert-St Louis

Wed 14/1

15:11-08:10

1 stop10h 59m

€750

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 29/12

10:40-17:54

1 stop13h 14m

Lambert-St Louis

Tue 20/1

15:11-08:10

1 stop10h 59m

€758

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 24/1

13:25-13:55

3 stops30h 30m

Lambert-St Louis

Sat 31/1

16:05-17:55

3 stops19h 50m

€759

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 29/12

10:40-17:54

1 stop13h 14m

Lambert-St Louis

Wed 14/1

15:11-08:10

1 stop10h 59m

€779

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 24/1

07:35-18:34

2 stops16h 59m

Lambert-St Louis

Sat 31/1

13:40-09:50

2 stops14h 10m

€784

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 27/12

10:40-16:27

1 stop11h 47m

Lambert-St Louis

Thu 15/1

11:20-08:10

1 stop14h 50m

€789

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 24/1

09:00-15:29

1 stop12h 29m

Lambert-St Louis

Sat 31/1

12:44-10:05

2 stops15h 21m

€793

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 February. Flight prices, which tend to average around €683, are often lower during this time because this is during the off-season. The month of August is another great option to travel to St. Louis, with average flight prices from Dublin averaging around €700.

What is the cheapest day to depart on your flight to St. Louis?

On average, the least expensive day to fly to St. Louis from Dublin is on a Thursday. momondo users have found tickets for Thursday departures for as low as €727. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Dublin to St. Louis for around €905.

What is the cheapest time of day to depart on your flight to St. Louis?

At midday is the cheapest time of day to fly from Dublin to St. Louis when you can find flight prices for as low as €680. Flying to St. Louis at midday is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive, with an average ticket price of €835.

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

As of December 2025, prices for Dublin to St. Louis flights are approximately 27% cheaper when compared to flights at the same time last year.

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

11h 23m

Direct flights

None
The fastest flight from Dublin to St. Louis takes 11h 23m
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 11h 23m, 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 €126Free CancellationRating
7.2
11,050 reviews
Search American 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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