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Cheap flights from St. Louis to Ireland from $362

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 5/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Ireland

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to Ireland.
United Airlines Logo
6:35 am - 7:30 amSTL-SNN
18h 55m1 stop
United Airlines Logo
12:30 pm - 7:39 pmSNN-STL
13h 09m1 stop
$644United Airlines
Find Deal
Wed, Sep 3 - Tue, Sep 9
KLM Logo
1:30 pm - 11:10 amSTL-SNN
15h 40m2 stops
KLM Logo
1:05 pm - 11:39 pmSNN-STL
16h 34m2 stops
$649KLM
Find Deal
Wed, Sep 3 - Tue, Sep 9
Delta Logo
12:15 pm - 11:10 amSTL-SNN
16h 55m1 stop
Delta Logo
1:05 pm - 8:54 pmSNN-STL
13h 49m1 stop
$704Delta
Find Deal
Sun, Jul 6 - Wed, Jul 23
Delta Logo
11:51 am - 11:10 amSTL-SNN
17h 19m2 stops
Delta Logo
1:05 pm - 8:54 pmSNN-STL
13h 49m1 stop
$709Delta
Find Deal
Mon, Jul 7 - Wed, Jul 23
Air Canada Logo
1:30 pm - 7:45 amSTL-DUB
12h 15m1 stop
Air Canada Logo
9:20 am - 2:33 pmDUB-STL
35h 13m2 stops
$756Air Canada
Find Deal
Mon, Sep 8 - Tue, Sep 16
Air Canada Logo
11:20 am - 7:45 amSTL-DUB
14h 25m2 stops
Air Canada Logo
9:20 am - 2:33 pmDUB-STL
35h 13m2 stops
$761Air Canada
Find Deal
Wed, Sep 3 - Tue, Sep 16
Iberia Logo
2:42 pm - 6:30 amSTL-DUB
9h 48m1 stop
Iberia Logo
12:40 pm - 10:34 pmDUB-STL
15h 54m1 stop
$820Iberia
Find Deal
Sat, Sep 27 - Tue, Oct 7
Iberia Logo
8:01 pm - 11:40 amSTL-DUB
9h 39m1 stop
Iberia Logo
1:45 pm - 8:23 pmDUB-STL
12h 38m1 stop
$878Iberia
Find Deal
Fri, Sep 5 - Sat, Sep 13
American Airlines Logo
1:59 pm - 11:20 amSTL-SNN
15h 21m2 stops
American Airlines Logo
7:40 am - 8:30 pmSNN-STL
18h 50m2 stops
$900American Airlines
Find Deal
Fri, May 16 - Sat, Jun 7
American Airlines Logo
1:16 pm - 10:45 amSTL-ORK
15h 29m2 stops
American Airlines Logo
7:20 am - 8:23 pmORK-STL
19h 03m2 stops
$1,041American Airlines
Find Deal
Mon, Jul 7 - Wed, Jul 23

Air Canada flights from St. Louis to Ireland

Our best Air Canada deals on St. Louis to Ireland flight tickets
Air Canada
Sep 8
STL1:30 pmLambert-St Louis
12h 15m
1 stop
DUB7:45 amDublin
Sep 16
DUB9:20 amDublin
35h 13m
2 stops
STL2:33 pmLambert-St Louis
Air Canada
Sep 3
STL11:20 amLambert-St Louis
14h 25m
2 stops
DUB7:45 amDublin
Sep 16
DUB9:20 amDublin
35h 13m
2 stops
STL2:33 pmLambert-St Louis
Air Canada
Sep 2
STL4:05 pmLambert-St Louis
33h 40m
2 stops
DUB7:45 amDublin
Sep 11
DUB9:20 amDublin
36h 24m
2 stops
STL3:44 pmLambert-St Louis

Iberia flights from St. Louis to Ireland

Our best Iberia deals on St. Louis to Ireland flight tickets
Iberia
Sep 27
STL2:42 pmLambert-St Louis
9h 48m
1 stop
DUB6:30 amDublin
Oct 7
DUB12:40 pmDublin
15h 54m
1 stop
STL10:34 pmLambert-St Louis
Iberia
Sep 5
STL8:01 pmLambert-St Louis
9h 39m
1 stop
DUB11:40 amDublin
Sep 13
DUB1:45 pmDublin
12h 38m
1 stop
STL8:23 pmLambert-St Louis
Iberia
Jun 12
STL12:28 pmLambert-St Louis
15h 17m
1 stop
DUB9:45 amDublin
Jun 20
DUB12:40 pmDublin
14h 19m
1 stop
STL8:59 pmLambert-St Louis

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?

In general, November is the cheapest month to fly from St. Louis to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $625. If you aren’t able to travel to Ireland during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $698.

What is the cheapest day to depart on your flight to Ireland?

The cheapest day to depart on your flight to Ireland is on a Wednesday when prices can be found for as low as $865. This is often the case because there is less demand to fly during this day of the week. Flights from St. Louis to Ireland on a Saturday will generally be more expensive and average around $972. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Ireland?

According to our data, the cheapest time of day to fly to Ireland is in the evening. momondo users have found flights departing from St. Louis to Ireland in the evening for as low as $556. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Ireland is at noon when prices are around $1,057.

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 22 weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $904 when searching 22 weeks out.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 $768 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

Best Price Found

$362

Fastest flight time

9h 35m

Direct flights

None

Airports in Ireland

3 airports
The best one-way flight to Ireland from St. Louis in the past 72 hours is $362. The best round-trip flight deal from St. Louis to Ireland found on momondo in the last 72 hours is $644.
The fastest flight from St. Louis to Ireland takes 9h 35m
There are no direct flights from St. Louis to Ireland. Popular non-direct routes for this connection are Lambert-St Louis Airport - Shannon Airport, Lambert-St Louis Airport - Dublin Airport and Lambert-St Louis Airport - Cork Airport.
There are 3 airports near Ireland: Dublin (DUB), Shannon (SNN), Cork (ORK)

  • 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 refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Ireland?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. 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 required for your trip to Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.


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
IberiaPriceFrom $491Free CancellationRating
7.0
2,655 reviews
Search Iberia flights
Air CanadaPriceFrom $494Free CancellationRating
7.0
9,022 reviews
Search Air Canada flights
United AirlinesPriceFrom $498Free CancellationRating
7.4
8,616 reviews
Search United Airlines flights
British AirwaysPriceFrom $499Free CancellationRating
6.6
6,717 reviews
Search British Airways flights
KLMPriceFrom $532Free CancellationRating
7.8
1,323 reviews
Search KLM flights
American AirlinesPriceFrom $544Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
LufthansaPriceFrom $560Free CancellationRating
6.7
6,963 reviews
Search Lufthansa flights
DeltaPriceFrom $567Free CancellationRating
8.0
7,897 reviews
Search Delta flights
Aer LingusPriceFrom $740Free CancellationRating
7.0
1,060 reviews
Search Aer Lingus flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Ireland. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for St. Louis to Ireland flights to just show those with flexible booking policies.

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?

Price alerts on flights to Ireland from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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