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Cheap flights from Ireland to Costa Rica from €426

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Costa Rica departing on 27/9. 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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Find the cheapest flights from Ireland to Costa Rica

Recent return flight deals from Ireland to Costa Rica

Logo
11:45 - 22:55DUB-SJO
41h 10m2 stops
Logo
08:35 - 07:10SJO-DUB
16h 35m1 stop
€621
Find Deal
Thu, 4 Dec - Thu, 15 Jan
Air Canada Logo
09:00 - 23:15DUB-SJO
44h 15m2 stops
Air Canada Logo
08:35 - 07:10SJO-DUB
16h 35m1 stop
€629Air Canada
Find Deal
Sat, 24 Jan - Tue, 3 Feb
Lufthansa Logo
17:55 - 16:45DUB-LIR
52h 50m3 stops
Lufthansa Logo
22:20 - 17:10LIR-DUB
36h 50m2 stops
€694Lufthansa
Find Deal
Mon, 3 Nov - Mon, 10 Nov
United Airlines Logo
09:00 - 12:56DUB-SJO
33h 56m2 stops
United Airlines Logo
14:05 - 08:10SJO-DUB
36h 05m1 stop
€698United Airlines
Find Deal
Fri, 7 Nov - Sat, 6 Dec
United Airlines Logo
13:35 - 13:15DUB-SJO
29h 40m2 stops
United Airlines Logo
06:30 - 07:30SJO-DUB
19h 00m2 stops
€699United Airlines
Find Deal
Tue, 2 Dec - Fri, 23 Jan
Lufthansa Logo
09:20 - 18:55DUB-SJO
15h 35m1 stop
Lufthansa Logo
20:40 - 22:45SJO-DUB
20h 05m1 stop
€714Lufthansa
Find Deal
Thu, 30 Oct - Thu, 6 Nov
WestJet Logo
09:45 - 12:21DUB-LIR
57h 36m2 stops
WestJet Logo
13:25 - 10:00LIR-DUB
13h 35m1 stop
€730WestJet
Find Deal
Sat, 4 Oct - Sat, 11 Oct
British Airways Logo
08:45 - 21:03DUB-SJO
18h 18m2 stops
British Airways Logo
18:30 - 19:50SJO-DUB
19h 20m1 stop
€776British Airways
Find Deal
Sun, 9 Nov - Thu, 13 Nov
British Airways Logo
07:50 - 21:03SNN-SJO
19h 13m2 stops
British Airways Logo
18:30 - 19:25SJO-SNN
18h 55m1 stop
€825British Airways
Find Deal
Sat, 8 Nov - Thu, 13 Nov
WestJet Logo
09:45 - 12:21DUB-LIR
57h 36m2 stops
WestJet Logo
13:25 - 08:25LIR-DUB
36h 00m2 stops
€873WestJet
Find Deal
Sat, 4 Oct - Sat, 11 Oct

Lufthansa flights from Ireland to Costa Rica

Our best Lufthansa deals on Ireland to Costa Rica flight tickets
Lufthansa
3 Nov
DUB17:55Dublin
52h 50m
3 stops
LIR16:45Liberia
10 Nov
LIR22:20Liberia
36h 50m
2 stops
DUB17:10Dublin
€694
Find similar
Lufthansa
30 Oct
DUB09:20Dublin
15h 35m
1 stop
SJO18:55San José Juan Santamaria Intl
6 Nov
SJO20:40San José Juan Santamaria Intl
20h 05m
1 stop
DUB22:45Dublin
€714
Find similar

United Airlines flights from Ireland to Costa Rica

Our best United Airlines deals on Ireland to Costa Rica flight tickets
United Airlines
7 Nov
DUB09:00Dublin
33h 56m
2 stops
SJO12:56San José Juan Santamaria Intl
6 Dec
SJO14:05San José Juan Santamaria Intl
36h 05m
1 stop
DUB08:10Dublin
€698
Find similar
United Airlines
2 Dec
DUB13:35Dublin
29h 40m
2 stops
SJO13:15San José Juan Santamaria Intl
23 Jan
SJO06:30San José Juan Santamaria Intl
19h 00m
2 stops
DUB07:30Dublin
€699
Find similar
United Airlines
5 Feb
DUB10:40Dublin
32h 30m
2 stops
LIR13:10Liberia
8 Feb
LIR14:01Liberia
35h 29m
2 stops
DUB07:30Dublin
€701
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to Costa Rica 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 16 September 2025.
Use the filters below to find and compare flights from Ireland to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinSan José

DUB - SJO

DUBSJO

Dublin

Thu 4/12

11:45-22:55

2 stops41h 10m

San José Juan Santamaria Intl

Thu 15/1

08:35-07:10

1 stop16h 35m

€621

DublinSan José

DUB - SJO

DUBSJO

Dublin

Sat 24/1

09:00-23:15

2 stops44h 15m

San José Juan Santamaria Intl

Tue 3/2

08:35-07:10

1 stop16h 35m

€629

DublinLiberia

DUB - LIR

DUBLIR

Dublin

Mon 3/11

17:55-16:45

3 stops52h 50m

Liberia

Mon 10/11

22:20-17:10

2 stops36h 50m

€694

DublinSan José

DUB - SJO

DUBSJO

Dublin

Fri 7/11

09:00-12:56

2 stops33h 56m

San José Juan Santamaria Intl

Sat 6/12

14:05-08:10

1 stop36h 05m

€698

DublinSan José

DUB - SJO

DUBSJO

Dublin

Tue 2/12

13:35-13:15

2 stops29h 40m

San José Juan Santamaria Intl

Fri 23/1

06:30-07:30

2 stops19h 00m

€699

DublinSan José

DUB - SJO

DUBSJO

Dublin

Thu 30/10

09:20-18:55

1 stop15h 35m

San José Juan Santamaria Intl

Thu 6/11

20:40-22:45

1 stop20h 05m

€714

DublinLiberia

DUB - LIR

DUBLIR

Dublin

Sat 4/10

09:45-12:21

2 stops57h 36m

Liberia

Sat 11/10

13:25-10:00

1 stop13h 35m

€730

DublinSan José

DUB - SJO

DUBSJO

Dublin

Sun 9/11

08:45-21:03

2 stops18h 18m

San José Juan Santamaria Intl

Thu 13/11

18:30-19:50

1 stop19h 20m

€776

ShannonSan José

SNN - SJO

SNNSJO

Shannon

Sat 8/11

07:50-21:03

2 stops19h 13m

San José Juan Santamaria Intl

Thu 13/11

18:30-19:25

1 stop18h 55m

€825

DublinLiberia

DUB - LIR

DUBLIR

Dublin

Sat 4/10

09:45-12:21

2 stops57h 36m

Liberia

Sat 11/10

13:25-08:25

2 stops36h 00m

€873

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Costa Rica from

How to get the cheapest flight ticket from Ireland to Costa Rica

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 Costa Rica?

The cheapest month to fly to Costa Rica from Ireland is in September. Flight prices, which tend to average around €673, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Costa Rica from Ireland during June instead. Flights to Costa Rica in June, while not as cheap as those in September, still average around €678.

What is the cheapest day to depart on your flight to Costa Rica?

The cheapest day to depart on your flight to Costa Rica is on a Wednesday when prices can be found for as low as €680. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around €1,048. These prices are subject to change though, so be sure to set up a Price Alert for flights to Costa Rica.

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

In the afternoon is the cheapest time of day to fly from Ireland to Costa Rica when you can find flight prices for as low as €751. Flying to Costa Rica in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at midday when prices are €842 on average. Flights to Costa Rica from Ireland at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to Costa Rica?

You are more likely to see cheaper flights to Costa Rica from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Costa Rica for around €741 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Costa Rica from Ireland for as low as €656 on momondo.

Cheap Ireland to Costa Rica flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Costa Rica

Direct flights

None
There are no direct flights from Ireland to Costa Rica. There are no popular flight routes from Ireland to Costa Rica.
Search flight deals

  • When did momondo last update prices for flights from Ireland to Costa Rica?

    Prices for flights from Ireland to Costa Rica were last updated today.

  • How many operators does momondo search for flights from Ireland to Costa Rica?

  • How old do you have to be to fly from Ireland to Costa Rica?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Costa Rica.

  • What documentation or ID do you need to fly to Costa Rica?

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

Best airlines flying from Ireland to Costa Rica

Compare and see reviews for airlines that fly from Ireland to Costa Rica with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom €485Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
United AirlinesPriceFrom €535Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
LufthansaPriceFrom €637Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights
Air FrancePriceFrom €703Free CancellationRating
7.4
1,469 reviews
Search Air France flights

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Costa Rica?

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 Ireland to Costa Rica for you.

Can I find flights from Ireland to Costa Rica with flexible booking policies on momondo?

momondo does allow users to show only those flights to Costa Rica from Ireland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ireland to Costa Rica?

momondo helps you find the best flight between Ireland and Costa Rica by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Costa Rica from Ireland 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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