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Cheap Flights from St Louis (STL) to Dublin (DUB)

Compare St Louis to Dublin flight deals

Find the cheapest month or even day of the year to fly to Dublin

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Flight deals from St Louis to Dublin

Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Dublin Airport? If you want to travel next month, return fares start from $1,359. Find the lowest prices on one-way and return tickets right here.
Dublin.$974 per passenger.Departing Wed, 10 Mar, returning Wed, 17 Mar.Return flight with United.Outbound indirect flight with United, departs from St Louis on Wed, 10 Mar, arriving in Dublin.Inbound indirect flight with United, departs from Dublin on Wed, 17 Mar, arriving in St Louis.Price includes taxes and charges.From $974, select.
Dublin.$978 per passenger.Departing Wed, 9 Sep, returning Thu, 17 Sep.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from St Louis on Wed, 9 Sep, arriving in Dublin.Inbound indirect flight with Air Canada, departs from Dublin on Thu, 17 Sep, arriving in St Louis.Price includes taxes and charges.From $978, select.
Dublin.$978 per passenger.Departing Wed, 30 Dec, returning Wed, 13 Jan.Return flight with United.Outbound indirect flight with United, departs from St Louis on Wed, 30 Dec, arriving in Dublin.Inbound indirect flight with United, departs from Dublin on Wed, 13 Jan, arriving in St Louis.Price includes taxes and charges.From $978, select.
Dublin.$979 per passenger.Departing Sun, 25 Oct, returning Fri, 6 Nov.Return flight with United.Outbound indirect flight with United, departs from St Louis on Sun, 25 Oct, arriving in Dublin.Inbound indirect flight with United, departs from Dublin on Fri, 6 Nov, arriving in St Louis.Price includes taxes and charges.From $979, select.
Dublin.$980 per passenger.Departing Tue, 19 Jan, returning Wed, 27 Jan.Return flight with United.Outbound indirect flight with United, departs from St Louis on Tue, 19 Jan, arriving in Dublin.Inbound indirect flight with United, departs from Dublin on Wed, 27 Jan, arriving in St Louis.Price includes taxes and charges.From $980, select.
Dublin.$984 per passenger.Departing Mon, 9 Nov, returning Wed, 18 Nov.Return flight with United.Outbound indirect flight with United, departs from St Louis on Mon, 9 Nov, arriving in Dublin.Inbound indirect flight with United, departs from Dublin on Wed, 18 Nov, arriving in St Louis.Price includes taxes and charges.From $984, select.
Dublin.$1,057 per passenger.Departing Sun, 9 Aug, returning Tue, 25 Aug.Return flight with United.Outbound indirect flight with United, departs from St Louis on Sun, 9 Aug, arriving in Dublin.Inbound indirect flight with United, departs from Dublin on Tue, 25 Aug, arriving in St Louis.Price includes taxes and charges.From $1,057, select.
Dublin.$1,058 per passenger.Departing Wed, 26 Aug, returning Tue, 15 Sep.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from St Louis on Wed, 26 Aug, arriving in Dublin.Inbound indirect flight with Air Canada, departs from Dublin on Tue, 15 Sep, arriving in St Louis.Price includes taxes and charges.From $1,058, select.
Dublin.$1,067 per passenger.Departing Sun, 28 Mar, returning Mon, 5 Apr.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from St Louis on Sun, 28 Mar, arriving in Dublin.Inbound indirect flight with Air Canada, departs from Dublin on Mon, 5 Apr, arriving in St Louis.Price includes taxes and charges.From $1,067, select.
Dublin.$1,068 per passenger.Departing Sat, 12 Dec, returning Tue, 22 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Sat, 12 Dec, arriving in Dublin.Inbound indirect flight with Delta, departs from Dublin on Tue, 22 Dec, arriving in St Louis.Price includes taxes and charges.From $1,068, select.
Dublin.$1,121 per passenger.Departing Sat, 6 Feb, returning Sat, 13 Feb.Return flight with United.Outbound indirect flight with United, departs from St Louis on Sat, 6 Feb, arriving in Dublin.Inbound indirect flight with United, departs from Dublin on Sat, 13 Feb, arriving in St Louis.Price includes taxes and charges.From $1,121, select.
Dublin.$1,149 per passenger.Departing Tue, 11 May, returning Tue, 25 May.Return flight with Finnair and British Airways.Outbound indirect flight with Finnair, departs from St Louis on Tue, 11 May, arriving in Dublin.Inbound indirect flight with British Airways, departs from Dublin on Tue, 25 May, arriving in St Louis.Price includes taxes and charges.From $1,149, select.
Dublin.$1,162 per passenger.Departing Wed, 16 Sep, returning Thu, 15 Oct.Return flight with Finnair.Outbound indirect flight with Finnair, departs from St Louis on Wed, 16 Sep, arriving in Dublin.Inbound indirect flight with Finnair, departs from Dublin on Thu, 15 Oct, arriving in St Louis.Price includes taxes and charges.From $1,162, select.
Dublin.$1,163 per passenger.Departing Mon, 19 Oct, returning Tue, 27 Oct.Return flight with Iberia.Outbound indirect flight with Iberia, departs from St Louis on Mon, 19 Oct, arriving in Dublin.Inbound indirect flight with Iberia, departs from Dublin on Tue, 27 Oct, arriving in St Louis.Price includes taxes and charges.From $1,163, select.
Dublin.$1,170 per passenger.Departing Sun, 22 Nov, returning Tue, 1 Dec.Return flight with Air France and KLM.Outbound indirect flight with Air France, departs from St Louis on Sun, 22 Nov, arriving in Dublin.Inbound indirect flight with KLM, departs from Dublin on Tue, 1 Dec, arriving in St Louis.Price includes taxes and charges.From $1,170, select.
Dublin.$1,211 per passenger.Departing Wed, 29 Jul, returning Fri, 7 Aug.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from St Louis on Wed, 29 Jul, arriving in Dublin.Inbound indirect flight with Air Canada, departs from Dublin on Fri, 7 Aug, arriving in St Louis.Price includes taxes and charges.From $1,211, select.

Find the cheapest month to fly from St Louis to Dublin

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Dublin flights are currently cheapest in March.
Jun
from $2,121
Jul
from $1,359
Aug
from $1,057
Sep
from $978
Oct
from $1,163
Nov
from $984
Dec
from $1,068
Jan
from $980
Feb
from $1,121
Mar
from $974
Apr
Find prices
May
from $1,149

St Louis to Dublin: Alternative routes

Compare routes from St Louis to Dublin below. You may find an airport to fly into that's cheaper, faster, or easier than Dublin.

Dublin

10km from central Dublin
ClosestCheapest
from $974
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St Louis to Dublin: Flight information

The things to know before you go.
Cheapest flight found$974
Cheapest month to flyMarch

Finding cheap flights from St Louis to Dublin: Frequently asked questions

The best price we found for a return flight from St Louis to Dublin is $974. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from St Louis to Dublin. But we found flights with one or more stops from $974.
As of June 2026, there are no flights flying from St Louis to Dublin.
The cheapest month to fly from St Louis to Dublin is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Dublin Airport on Wednesday, 10 March 2027.
No airlines currently offer direct flights between St Louis Airport and Dublin Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Dublin but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Dublin is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Dublin.

Travelling from St Louis Airport (STL) to Dublin Airport (DUB): what you need to know

  • The timezone in Dublin is UTC+0, which is six hours ahead of St Louis.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Get to the airport on time to board your STL to DUB flight.

  • You can expect bigger queues during popular months such as July. Arriving up to four hours ahead of international flights and two hours for domestic departures is a good idea.

  • If you'd like to break up your flight, simply uncheck 'Direct flights only' when searching for your ticket from St Louis Airport to Dublin Airport. Here are the most popular stopovers between STL and DUB:

    • Chicago O'Hare International Airport

    • Atlanta Hartsfield-Jackson Airport

    • Toronto Pearson International Airport

How to find the cheapest flights from St Louis Airport (STL) to Dublin Airport (DUB)

  • $630 is currently the best price for a one-way St Louis Airport to Dublin Airport flight. Return flights start at $974. These prices can change based on availability.

  • To find cheap tickets from STL to DUB, book ahead. Airlines typically offer their most competitively priced fares when flights are first released.

  • If you're willing to be flexible with your trip dates, use the 'Whole month' search tool. It'll find the cheapest price in every month when searching for your flight from St Louis Airport to Dublin Airport.

  • You don't need to check back in every day to see if fares have dropped when you create a Price Alert. We'll notify you the moment a special offer becomes available on cheap flights from STL to DUB.

  • Select your ideal departure and arrival times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from St Louis Airport to Dublin Airport.

Handy information about St Louis Airport (STL)

Arriving at Dublin Airport (DUB)

When to fly to Dublin Airport (DUB)

  • It's time to work out your travel dates for your flight from St Louis Airport to Dublin Airport. July is the busiest month to head to Dublin. If you want a more laid-back vibe, go in March.

  • The warmest month in Dublin is July, with temperatures ranging between 10ºC (50ºF) and 19ºC (66ºF). Book your flights from St Louis Airport to Dublin Airport in this month if you enjoy this type of weather.

  • January sees average temperatures of between 2ºC (36ºF) and 9ºC (48ºF). Search for cheap tickets from STL to DUB sometime around then if you'd rather travel in cooler conditions.

Explore more of Ireland

  • You've seen Dublin, now it's time to discover other corners of Ireland. Journey about 225 kilometres south-west to Cork to check off its top attractions. From Blarney Castle & Gardens to Blarney Castle House(Teach Caisleán na Blarnan) and Blarney Stone, there's plenty to keep you on the go.

Plan the rest of your trip from St Louis to Dublin

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.