Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Ireland 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 St. Louis to Ireland departing on 27/5. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Voted the Winner of Europe's Best Travel App 2023

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

Find the cheapest flights from St. Louis to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Lufthansa Logo
15:50 - 16:35
STL
-
DUB
18h 45m
1 stop
Lufthansa Logo
05:10 - 14:55
DUB
-
STL
14h 45m
1 stop
€375Lufthansa
Wed, 4 Mar - Wed, 11 Mar
United Airlines Logo
12:15 - 10:20
STL
-
DUB
16h 05m
1 stop
United Airlines Logo
09:00 - 22:14
DUB
-
STL
43h 14m
2 stops
€387United Airlines
Sat, 21 Feb - Mon, 2 Mar
Air Canada Logo
06:25 - 07:10
STL
-
DUB
18h 45m
2 stops
Air Canada Logo
08:00 - 14:42
DUB
-
STL
35h 42m
2 stops
€394Air Canada
Sun, 1 Mar - Wed, 11 Mar
British Airways Logo
16:30 - 12:05
STL
-
DUB
13h 35m
2 stops
British Airways Logo
08:35 - 19:30
DUB
-
STL
16h 55m
1 stop
€399British Airways
Tue, 14 Apr - Wed, 22 Apr
Multiple Airlines Logo
16:05 - 22:45
STL
-
DUB
25h 40m
2 stops
Multiple Airlines Logo
08:00 - 15:29
DUB
-
STL
12h 29m
1 stop
€400Multiple Airlines
Mon, 9 Mar - Mon, 16 Mar
British Airways Logo
14:33 - 12:05
STL
-
DUB
15h 32m
2 stops
British Airways Logo
20:30 - 17:21
DUB
-
STL
26h 51m
2 stops
€401British Airways
Tue, 14 Apr - Wed, 22 Apr
Multiple Airlines Logo
16:05 - 20:35
STL
-
SNN
22h 30m
2 stops
Multiple Airlines Logo
07:30 - 20:05
SNN
-
STL
18h 35m
2 stops
€601Multiple Airlines
Tue, 21 Apr - Sun, 3 May
American Airlines Logo
14:06 - 11:30
STL
-
SNN
16h 24m
2 stops
American Airlines Logo
13:45 - 11:29
SNN
-
STL
27h 44m
1 stop
€602American Airlines
Tue, 24 Mar - Tue, 31 Mar
Air Canada Logo
11:25 - 11:30
STL
-
SNN
19h 05m
3 stops
Air Canada Logo
21:15 - 15:24
SNN
-
STL
24h 09m
2 stops
€607Air Canada
Tue, 24 Mar - Tue, 31 Mar
American Airlines Logo
11:59 - 06:20
STL
-
SNN
13h 21m
1 stop
American Airlines Logo
13:45 - 11:29
SNN
-
STL
27h 44m
1 stop
€610American Airlines
Tue, 24 Mar - Tue, 31 Mar

United Airlines flights from St. Louis to Ireland

Our best United Airlines deals on St. Louis to Ireland flight tickets
United Airlines
21 Feb
STL12:15Lambert-St Louis
16h 05m
1 stop
DUB10:20Dublin
2 Mar
DUB09:00Dublin
43h 14m
2 stops
STL22:14Lambert-St Louis
€387
United Airlines
21 Feb
STL08:30Lambert-St Louis
19h 25m
2 stops
DUB09:55Dublin
2 Mar
DUB09:00Dublin
43h 14m
2 stops
STL22:14Lambert-St Louis
€391
United Airlines
14 Apr
STL07:45Lambert-St Louis
20h 00m
1 stop
DUB09:45Dublin
22 Apr
DUB09:50Dublin
42h 38m
2 stops
STL22:28Lambert-St Louis
€393

British Airways flights from St. Louis to Ireland

Our best British Airways deals on St. Louis to Ireland flight tickets
British Airways
14 Apr
STL16:30Lambert-St Louis
13h 35m
2 stops
DUB12:05Dublin
22 Apr
DUB08:35Dublin
16h 55m
1 stop
STL19:30Lambert-St Louis
€399
British Airways
14 Apr
STL14:33Lambert-St Louis
15h 32m
2 stops
DUB12:05Dublin
22 Apr
DUB20:30Dublin
26h 51m
2 stops
STL17:21Lambert-St Louis
€401
British Airways
14 Apr
STL16:30Lambert-St Louis
16h 05m
2 stops
DUB14:35Dublin
22 Apr
DUB20:30Dublin
26h 52m
2 stops
STL17:22Lambert-St Louis
€402

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 9 February 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

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Wed 4/3

15:50-16:35

1 stop18h 45m

Dublin

Wed 11/3

05:10-14:55

1 stop14h 45m

€375

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sat 21/2

12:15-10:20

1 stop16h 05m

Dublin

Mon 2/3

09:00-22:14

2 stops43h 14m

€387

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Sun 1/3

06:25-07:10

2 stops18h 45m

Dublin

Wed 11/3

08:00-14:42

2 stops35h 42m

€394

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 14/4

16:30-12:05

2 stops13h 35m

Dublin

Wed 22/4

08:35-19:30

1 stop16h 55m

€399

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Mon 9/3

16:05-22:45

2 stops25h 40m

Dublin

Mon 16/3

08:00-15:29

1 stop12h 29m

€400

St. LouisDublin

STL - DUB

STLDUB

Lambert-St Louis

Tue 14/4

14:33-12:05

2 stops15h 32m

Dublin

Wed 22/4

20:30-17:21

2 stops26h 51m

€401

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Tue 21/4

16:05-20:35

2 stops22h 30m

Shannon

Sun 3/5

07:30-20:05

2 stops18h 35m

€601

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Tue 24/3

14:06-11:30

2 stops16h 24m

Shannon

Tue 31/3

13:45-11:29

1 stop27h 44m

€602

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Tue 24/3

11:25-11:30

3 stops19h 05m

Shannon

Tue 31/3

21:15-15:24

2 stops24h 09m

€607

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Tue 24/3

11:59-06:20

1 stop13h 21m

Shannon

Tue 31/3

13:45-11:29

1 stop27h 44m

€610

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 November is another great option to travel to Ireland, with average flight prices from St. Louis averaging around €471.

How far in advance should I book a flight 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 €627 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 €487 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

11h 55m

Direct flights

None
The fastest flight from St. Louis to Ireland takes 11h 55m
There are no direct flights from St. Louis to Ireland. There are no popular flight routes from St. Louis to Ireland.
Search flight deals

  • 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.

Best airlines flying from St. Louis to Ireland

Compare and see reviews for airlines that fly from St. Louis to Ireland with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom €482Free CancellationRating
7.2
11,254 reviews
Search American Airlines flights

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 11/3
Wed 18/3
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 €37
Flights to Corkfrom €85
Flights to Shannon, Clarefrom €87
Flights to Donegalfrom €148
Flights to Milltown (Kerry)from €37