Latest deals
Insights
FAQs
Price Alerts

Cheap flights from St. Louis to Ireland from €194

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Ireland departing on 21/10. 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
1 adult, Economy, 0 bags

Find the cheapest flights from St. Louis to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
16:05 - 05:10STL  Lambert-St Louis-DUB Dublin
32h 05m1 stop Toronto Pearson Intl
Aer Lingus Logo
13:00 - 15:26DUB  Dublin-STL Lambert-St Louis
32h 26m1 stop Toronto Pearson Intl
€292Aer Lingus
Mon, 26 Oct - Wed, 4 Nov
Aer Lingus Logo
16:05 - 05:10STL  Lambert-St Louis-DUB Dublin
31h 05m1 stop Toronto Pearson Intl
Aer Lingus Logo
13:00 - 15:26DUB  Dublin-STL Lambert-St Louis
32h 26m1 stop Toronto Pearson Intl
€293Aer Lingus
Mon, 11 Jan - Thu, 21 Jan
Aer Lingus Logo
16:05 - 05:10STL  Lambert-St Louis-DUB Dublin
32h 05m1 stop Toronto Pearson Intl
Aer Lingus Logo
13:00 - 15:26DUB  Dublin-STL Lambert-St Louis
32h 26m1 stop Toronto Pearson Intl
€294Aer Lingus
Mon, 26 Oct - Wed, 4 Nov
Aer Lingus Logo
16:05 - 05:10STL  Lambert-St Louis-DUB Dublin
31h 05m1 stop Toronto Pearson Intl
Aer Lingus Logo
13:00 - 15:26DUB  Dublin-STL Lambert-St Louis
32h 26m1 stop Toronto Pearson Intl
€295Aer Lingus
Mon, 1 Feb - Tue, 9 Feb
Aer Lingus Logo
08:55 - 05:10STL  Lambert-St Louis-DUB Dublin
14h 15m1 stop Toronto Pearson Intl
Aer Lingus Logo
13:20 - 20:20DUB  Dublin-STL Lambert-St Louis
13h 00m1 stop Toronto Pearson Intl
€296Aer Lingus
Tue, 8 Sep - Tue, 15 Sep
Aer Lingus Logo
08:55 - 05:10STL  Lambert-St Louis-DUB Dublin
14h 15m1 stop Toronto Pearson Intl
Aer Lingus Logo
13:20 - 14:00DUB  Dublin-STL Lambert-St Louis
30h 40m1 stop Toronto Pearson Intl
€299Aer Lingus
Tue, 8 Sep - Tue, 15 Sep
Aer Lingus Logo
08:55 - 05:10STL  Lambert-St Louis-DUB Dublin
14h 15m1 stop Toronto Pearson Intl
Aer Lingus Logo
13:20 - 20:20DUB  Dublin-STL Lambert-St Louis
13h 00m1 stop Toronto Pearson Intl
€311Aer Lingus
Mon, 7 Sep - Tue, 15 Sep
Aer Lingus Logo
16:05 - 05:10STL  Lambert-St Louis-DUB Dublin
31h 05m1 stop Toronto Pearson Intl
Aer Lingus Logo
13:00 - 15:26DUB  Dublin-STL Lambert-St Louis
32h 26m1 stop Toronto Pearson Intl
€314Aer Lingus
Mon, 9 Nov - Thu, 19 Nov
Aer Lingus Logo
16:05 - 05:10STL  Lambert-St Louis-DUB Dublin
31h 05m1 stop Toronto Pearson Intl
Aer Lingus Logo
13:00 - 15:26DUB  Dublin-STL Lambert-St Louis
32h 26m1 stop Toronto Pearson Intl
€315Aer Lingus
Sat, 7 Nov - Tue, 17 Nov
Aer Lingus Logo
08:55 - 05:10STL  Lambert-St Louis-DUB Dublin
14h 15m1 stop Toronto Pearson Intl
Aer Lingus Logo
13:20 - 14:00DUB  Dublin-STL Lambert-St Louis
30h 40m1 stop Toronto Pearson Intl
€318Aer Lingus
Mon, 7 Sep - Wed, 16 Sep

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

United Airlines flights from St. Louis to Ireland

Our best United Airlines deals on St. Louis to Ireland flight tickets
United Airlines
8 Dec
STL07:30Lambert-St Louis
18h 00m
1 stop
DUB07:30Dublin
15 Dec
DUB09:00Dublin
33h 06m
2 stops
STL12:06Lambert-St Louis
€587
United Airlines
8 Dec
STL08:25Lambert-St Louis
19h 55m
1 stop
DUB10:20Dublin
15 Dec
DUB09:00Dublin
12h 26m
1 stop
STL15:26Lambert-St Louis
€598
United Airlines
8 Dec
STL11:25Lambert-St Louis
16h 30m
2 stops
DUB09:55Dublin
15 Dec
DUB09:00Dublin
12h 26m
1 stop
STL15:26Lambert-St Louis
€602

Air Canada flights from St. Louis to Ireland

Our best Air Canada deals on St. Louis to Ireland flight tickets
Air Canada
1 Dec
STL19:04Lambert-St Louis
30h 06m
2 stops
DUB07:10Dublin
15 Dec
DUB09:00Dublin
33h 06m
2 stops
STL12:06Lambert-St Louis
€594
Air Canada
30 Aug
STL12:10Lambert-St Louis
13h 35m
1 stop
DUB07:45Dublin
12 Sept
DUB09:20Dublin
10h 40m
1 stop
STL14:00Lambert-St Louis
€888
Air Canada
9 Sept
STL12:10Lambert-St Louis
26h 25m
2 stops
SNN20:35Shannon
22 Sept
SNN21:15Shannon
27h 26m
2 stops
STL18:41Lambert-St Louis
€897

momondo Fare Finder

 
Customise your flight search to find flights from St. Louis to Ireland 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 17 August 2026.
Use the filters below to find and compare flights from St. Louis to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Mon 26/10

16:05-05:10

1 stop32h 05m

Dublin

Wed 4/11

13:00-15:26

1 stop32h 26m

€292

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Mon 11/1

16:05-05:10

1 stop31h 05m

Dublin

Thu 21/1

13:00-15:26

1 stop32h 26m

€293

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Mon 26/10

16:05-05:10

1 stop32h 05m

Dublin

Wed 4/11

13:00-15:26

1 stop32h 26m

€294

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Mon 1/2

16:05-05:10

1 stop31h 05m

Dublin

Tue 9/2

13:00-15:26

1 stop32h 26m

€295
Fastest return journey

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Tue 8/9

08:55-05:10

1 stop14h 15m

Dublin

Tue 15/9

13:20-20:20

1 stop13h 00m

€296

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Tue 8/9

08:55-05:10

1 stop14h 15m

Dublin

Tue 15/9

13:20-14:00

1 stop30h 40m

€299

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Mon 7/9

08:55-05:10

1 stop14h 15m

Dublin

Tue 15/9

13:20-20:20

1 stop13h 00m

€311

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Mon 9/11

16:05-05:10

1 stop31h 05m

Dublin

Thu 19/11

13:00-15:26

1 stop32h 26m

€314

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Sat 7/11

16:05-05:10

1 stop31h 05m

Dublin

Tue 17/11

13:00-15:26

1 stop32h 26m

€315

St. LouisDublin

STL Lambert-St Louis - DUB Dublin

STLDUB

Lambert-St Louis

Mon 7/9

08:55-05:10

1 stop14h 15m

Dublin

Wed 16/9

13:20-14:00

1 stop30h 40m

€318

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Ireland from

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

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 cheapest month to fly to Ireland?

The month of January is another great option to travel to Ireland, with average flight prices from St. Louis averaging around €436.

How far in advance should I book a flight from St. Louis to Ireland?

You are more likely to see cheaper flights to Ireland from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €617 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from St. Louis for as low as €491 on momondo.

Cheap St. Louis to Ireland flight deals and tips

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

Fastest flight time

9h 58m

Direct flights

None
The fastest flight from St. Louis to Ireland takes 9h 58m
There are no direct flights from St. Louis to Ireland. There are no popular flight routes from St. Louis to Ireland.
Search flight deals

Frequently asked questions about flying from St. Louis to Ireland

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland 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 Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Ireland for you.

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

Yes. All flights to Ireland from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Ireland.

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

If you are not ready to book a flight from St. Louis to Ireland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ireland and let you know when they change.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 16/9
Wed 23/9
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €38
Flights to Corkfrom €77
Flights to Shannon, Clarefrom €83
Flights to Milltown (Kerry)from €40
Flights to Donegalfrom €75