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

Airlines like United Airlines and KLM fly from St. Louis to Dublin in about 13h 45m. The time it takes to get you to your destination can typically vary by up to 6h 10m. Airlines will cover a distance of 3909 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Dublin ranges from 49.0 - 79.0 inches per month. October is typically the wettest month, when rainfall can reach 79.0 mm. February is typically the driest time to visit Dublin when rainfall is around 49.0 mm.

If weather is an important factor for your trip to Dublin, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

What is the cheapest time of day to fly from STL to DUB?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Dublin as you normally would.

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.

£255+ Cheap Flights from St. Louis to Dublin

Cheap flight deals from St. Louis to Dublin

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

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Cheapest flights from St. Louis to Dublin
Explore the most affordable flight options available from St. Louis to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Tue 8/1213:18 -

1 stop12h 52m

Tue 15/1209:00 -

2 stops33h 22m

Deal found 29/10£553

Mon 30/1106:00 -

1 stop19h 30m

Wed 16/1205:10 -

1 stop14h 35m

Deal found 27/10£558

Tue 1/1208:30 -

2 stops17h 00m

Wed 9/1205:10 -

1 stop14h 35m

Deal found 25/10£561

Mon 30/1114:31 -

1 stop11h 14m

Wed 9/1205:45 -

2 stops17h 35m

Deal found 25/10£562

Mon 30/1114:31 -

1 stop11h 14m

Thu 10/1209:55 -

1 stop12h 29m

Deal found 25/10£565

Wed 2/1214:33 -

2 stops12h 12m

Wed 9/1208:50 -

2 stops17h 42m

Deal found 25/10£566

Mon 30/1117:00 -

1 stop10h 55m

Wed 16/1209:30 -

2 stops17h 53m

Deal found 27/10£567

Find flight deals from St. Louis to Dublin

Round-trip from	£517
One-way from	£255
Popular in	June
Cheapest in	September
Average price	£567

United Airlines
16/3-26/3
3 total stops
59h 06m total
St. Louis to Dublin

Search Deals

United Airlines
6/3-31/12
2 total stops
31h 56m total
St. Louis to Dublin

Search Deals

Highest demand for flights based on searches. 27% potential increase in price (£159 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (£25 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Sat 6/3

17:34-07:30

2 stops31h 56m

Dublin

Wed 31/12

00:00-17:00

Nonstop0h 00m

£255

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Sun 8/11

10:14-09:45

2 stops17h 31m

Dublin

Wed 31/12

00:00-17:00

Nonstop0h 00m

£348

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Mon 16/11

06:00-09:55

2 stops21h 55m

Dublin

Wed 31/12

00:00-17:00

Nonstop0h 00m

£348

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Mon 9/11

06:00-10:20

2 stops22h 20m

Dublin

Wed 31/12

00:00-17:00

Nonstop0h 00m

£348

Fastest return journey

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Wed 11/11

10:53-07:30

2 stops14h 37m

Dublin

Wed 31/12

00:00-17:00

Nonstop0h 00m

£348

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Sat 7/11

17:33-07:55

1 stop32h 22m

Dublin

Wed 31/12

00:00-17:00

Nonstop0h 00m

£357

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Mon 15/2

13:08-08:10

1 stop13h 02m

Dublin

Thu 18/2

09:00-15:26

1 stop12h 26m

£531

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Mon 8/3

08:25-10:20

1 stop19h 55m

Dublin

Tue 23/3

08:00-15:26

1 stop12h 26m

£531

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Wed 28/4

13:30-09:15

2 stops13h 45m

Dublin

Wed 12/5

06:00-14:31

2 stops14h 31m

£537

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Tue 8/12

11:05-07:30

1 stop14h 25m

Dublin

Tue 15/12

09:00-15:26

1 stop12h 26m

£563

Flights are sorted by cheapest return flights first.

Deals found on 27/10

Showing 1-10 of 18 resultsSorted by cheapest first

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.

STL-DUB

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 £276). Flying from St. Louis to Dublin in June is currently the most expensive (average of £920). 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 £450 and £675 in February.
The cheapest return price found within the last 5 days was £517 on United Airlines (15 Feb–18 Feb).

Related info for your journey

How long is the flight from St. Louis to Dublin?
Airlines like United Airlines and KLM fly from St. Louis to Dublin in about 13h 45m. The time it takes to get you to your destination can typically vary by up to 6h 10m. 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 £276). Flying from St. Louis to Dublin in June is currently the most expensive (average of £920). 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.

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How does Cheapflights help users find flights from St. Louis to Dublin?

Cheapflights makes it easy to find St. Louis to Dublin flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Dublin?

Cheapflights helps you find that perfect flight to Dublin from St. Louis by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from St. Louis to Dublin with no change fees?

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.

Can Cheapflights notify me if prices for flights from St. Louis to Dublin become cheaper?

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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Cheap flights from St. Louis to Dublin from £255

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from St. Louis to Dublin

Cheapest flights from St. Louis to DublinExplore the most affordable flight options available from St. Louis to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Explore the most affordable flight options available from St. Louis to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from St. Louis to DublinDiscover carefully curated flight deals from St. Louis to Dublin that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Discover carefully curated flight deals from St. Louis to Dublin that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Last-minute flights from St. Louis to DublinDiscover last-minute flight deals from St. Louis to Dublin. Data last updated 30 October 2026 and is based on user searches.

Discover last-minute flight deals from St. Louis to Dublin. Data last updated 30 October 2026 and is based on user searches.

One-way flights from St. Louis to DublinSearch for one-way flight options from St. Louis to Dublin. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Search for one-way flight options from St. Louis to Dublin. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

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

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.

Cheapflights Insights

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?

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 £450 and £675 in February.The cheapest return price found within the last 5 days was £517 on United Airlines (15 Feb–18 Feb).

Related info for your journey

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

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

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

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

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

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How does Cheapflights help users find flights from St. Louis to Dublin?

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Dublin?

Can Cheapflights find flights from St. Louis to Dublin with no change fees?

Can Cheapflights notify me if prices for flights from St. Louis to Dublin become cheaper?

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Cheapest flights from St. Louis to Dublin
Explore the most affordable flight options available from St. Louis to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from St. Louis to Dublin
Discover carefully curated flight deals from St. Louis to Dublin that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Last-minute flights from St. Louis to Dublin
Discover last-minute flight deals from St. Louis to Dublin. Data last updated 30 October 2026 and is based on user searches.

One-way flights from St. Louis to Dublin
Search for one-way flight options from St. Louis to Dublin. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

St. Louis to Dublin flights typically cost between £450 and £675 in February.
The cheapest return price found within the last 5 days was £517 on United Airlines (15 Feb–18 Feb).