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Cheap flights from St. Louis to Dublin from £343

STL — DUB
12 Oct — 19 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from St. Louis to Dublin

Enter your travel dates to find the best prices.

Cheapest flights from St. Louis to Dublin

Tue 8/1209:40 -
1 stop16h 30m
Tue 15/1209:00 -
2 stops33h 22m
Deal found 11/9£391
Sun 18/1014:25 -
2 stops14h 20m
Tue 3/1110:45 -
2 stops17h 14m
Deal found 9/9£405
Mon 26/1017:00 -
1 stop11h 55m
Wed 4/1110:40 -
1 stop13h 29m
Deal found 11/9£411
Tue 8/1212:36 -
2 stops14h 09m
Tue 15/1210:45 -
2 stops16h 53m
Deal found 11/9£414
Sun 25/1007:30 -
2 stops17h 40m
Sun 1/1109:00 -
1 stop12h 23m
Deal found 10/9£425
Sun 25/1018:50 -
1 stop32h 20m
Sun 1/1109:00 -
2 stops36h 43m
Deal found 10/9£433
Sun 25/1017:35 -
2 stops14h 05m
Fri 6/1110:45 -
2 stops15h 11m
Deal found 9/9£437
Tue 27/1012:00 -
1 stop14h 45m
Mon 2/1109:40 -
1 stop12h 48m
Deal found 10/9£448
Tue 27/1013:08 -
2 stops15h 47m
Mon 2/1113:35 -
1 stop14h 17m
Deal found 10/9£451
Sat 24/1019:01 -
1 stop32h 09m
Sun 1/1109:30 -
1 stop18h 22m
Deal found 11/9£453

Find flight deals from St. Louis to Dublin

Round-trip from

£391

One-way from

£343

Popular in

June

Cheapest in

September

Average price

£275
United Airlines
  • United Airlines
  • 8/12-15/12
  • 3 total stops
  • 49h 52m total
  • St. Louis to Dublin
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Delta
  • Delta
  • 1/11-31/12
  • 1 total stop
  • 15h 20m total
  • St. Louis to Dublin
Search Deals
Highest demand for flights based on searches. 29% potential increase in price (£162 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£26 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from St. Louis to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Sun 1/11

10:25-07:45

1 stop15h 20m

Dublin

Wed 31/12

00:00-17:00

Nonstop0h 00m

£343

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Sun 1/11

06:15-08:10

2 stops19h 55m

Dublin

Wed 31/12

00:00-17:00

Nonstop0h 00m

£343

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Thu 12/11

06:00-08:10

1 stop20h 10m

Dublin

Wed 31/12

00:00-17:00

Nonstop0h 00m

£380

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Wed 18/11

06:00-07:30

1 stop19h 30m

Dublin

Fri 27/11

09:30-16:17

1 stop12h 47m

£411

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Wed 28/10

06:09-07:30

1 stop20h 21m

Dublin

Tue 3/11

13:35-21:52

1 stop14h 17m

£411

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Mon 9/11

07:05-08:45

2 stops19h 40m

Dublin

Wed 18/11

09:40-23:56

1 stop20h 16m

£414

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Wed 21/10

11:35-07:30

2 stops13h 55m

Dublin

Wed 18/11

12:05-21:40

2 stops15h 35m

£414

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Sat 9/1

17:28-08:10

1 stop32h 42m

Dublin

Tue 19/1

09:30-21:53

1 stop18h 23m

£419

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Sun 25/10

18:50-08:10

1 stop32h 20m

Dublin

Sun 1/11

09:00-15:43

2 stops36h 43m

£433

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Sun 25/10

17:35-12:40

2 stops14h 05m

Dublin

Fri 6/11

10:45-19:56

2 stops15h 11m

£437

Flights are sorted by cheapest return flights first.

Deals found on 7/9

Showing 1-10 of 14 resultsSorted by cheapest first
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Best time to book a flight from St. Louis to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from St. Louis with our price prediction graph.
Estimated return price

Cheapflights Insights

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

How far ahead should I book a flight from St. Louis to Dublin?

To ensure you get the cheapest price possible for a flight from St. Louis to Dublin, you should look to book at least 61 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from St. Louis to Dublin?

Currently, September is the cheapest month in which you can book a flight from St. Louis to Dublin (average of £273). Flying from St. Louis to Dublin in June is currently the most expensive (average of £908). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from St. Louis to Dublin?

Airfare is typical for this route at the moment.

St. Louis to Dublin flights typically cost between £256 and £530 in December.
The cheapest return price found within the last 5 days was £391 on United Airlines (8 Dec–15 Dec).

Related info for your journey

  • How long is the flight from St. Louis to Dublin?

    Airlines like United Airlines, Finnair, and Delta fly from St. Louis to Dublin in about 14h 58m. The time it takes to get you to your destination can typically vary by up to 4h 32m. Airlines will cover a distance of 3909 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from St. Louis to Dublin that include hotel bookings?

    Yes. In addition to deals on St. Louis to Dublin flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Dublin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Dublin.

  • Can I find deals for business class flights from St. Louis to Dublin?

    Yes. Cheapflights offers flight deals from St. Louis to Dublin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Dublin (average of £273). Flying from St. Louis to Dublin in June is currently the most expensive (average of £908). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Arklow
Cavan
Swords
Portmarnock
Athlone
Dundalk
Bray
Wicklow
Malahide
Maynooth
Drogheda
Kildare

Browse thousands of different options on Cheapflights for your next trip

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Need flexible booking options for your flight to Dublin from St. Louis? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Yes! Start tracking prices for St. Louis to Dublin flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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