€434 Find Cheap Flights to Costa Rica

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ireland to Costa Rica departing on 4/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Flights Deals

Best Costa Rica Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours
San José
San José1 stop€577
Liberia
Liberia2 stops€685
San José
San José1 stop€577
Liberia
Liberia2 stops€685

Book Cheap Costa Rica Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Costa Rica that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Costa Rica

Thu, 28 Aug - Wed, 10 Sep
JetBlue Logo
11:30 - 13:00DUB-SJO
32h 30m1 stop
JetBlue Logo
14:07 - 08:20SJO-DUB
35h 13m1 stop
€577JetBlue
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Thu, 28 Aug - Wed, 10 Sep
 Logo
09:00 - 17:35DUB-SJO
15h 35m1 stop
 Logo
08:00 - 07:45SJO-DUB
16h 45m2 stops
€647
Find Deal
Thu, 4 Dec - Wed, 4 Feb
United Airlines Logo
09:30 - 20:39DUB-SJO
41h 09m2 stops
United Airlines Logo
14:00 - 07:30SJO-DUB
35h 30m1 stop
€655United Airlines
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Thu, 4 Dec - Wed, 4 Feb
United Airlines Logo
13:35 - 19:53DUB-SJO
36h 18m1 stop
United Airlines Logo
09:05 - 07:30SJO-DUB
16h 25m1 stop
€657United Airlines
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Mon, 8 Dec - Tue, 16 Dec
Air Canada Logo
09:00 - 00:05DUB-SJO
21h 05m1 stop
Air Canada Logo
08:35 - 07:10SJO-DUB
16h 35m1 stop
€662Air Canada
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Mon, 8 Dec - Tue, 16 Dec
Air Canada Logo
09:00 - 00:05DUB-SJO
21h 05m1 stop
Air Canada Logo
08:35 - 09:55SJO-DUB
19h 20m2 stops
€685Air Canada
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Sat, 23 Aug - Sat, 30 Aug
Lufthansa Logo
09:20 - 20:19DUB-SJO
17h 59m1 stop
Lufthansa Logo
13:30 - 07:20SJO-DUB
34h 50m2 stops
€706Lufthansa
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Tue, 9 Dec - Mon, 15 Dec
Lufthansa Logo
05:00 - 14:05DUB-SJO
39h 05m2 stops
Lufthansa Logo
20:10 - 17:10SJO-DUB
39h 00m3 stops
€755Lufthansa
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Thu, 2 Oct - Mon, 6 Oct
Air France Logo
09:10 - 17:10DUB-SJO
15h 00m1 stop
Air France Logo
19:25 - 22:40SJO-DUB
20h 15m1 stop
€760Air France
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Thu, 2 Oct - Mon, 6 Oct
Air France Logo
09:10 - 17:10DUB-SJO
15h 00m1 stop
Air France Logo
19:25 - 22:40SJO-DUB
20h 15m1 stop
€765Air France
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Useful Info

What is the cheapest month to fly from Ireland to Costa Rica?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ireland to Costa Rica, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ireland to Costa Rica is November, when tickets cost €676 (return) on average. On the other hand, the most expensive months are December and April, when the average cost of round-trip tickets is €954 and €917 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Costa Rica, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on the flight from Ireland to Costa Rica, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.


Good to know

Low seasonMay
High seasonDecember
Cheapest flight€434
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly (24% more expensive on average)
Flight from Dublin to San José

FAQs - booking Costa Rica flights

  • How does KAYAK find such low prices on flights from Ireland to Costa Rica?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ireland to Costa Rica.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ireland to Costa Rica?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ireland to Costa Rica is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ireland to Costa Rica?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Ireland to Costa Rica with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ireland to Costa Rica?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ireland to Costa Rica up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Costa Rica?

    Based on KAYAK data, the cheapest day to fly to Costa Rica is Wednesday when return tickets can be as cheap as €682. On the other hand, the most expensive day to fly is Saturday, when return prices are €1,056 on average.

  • What is the cheapest time of day to fly to Costa Rica?

    The cheapest time of day to fly to Costa Rica is generally in the evening, when round-trip flights cost €883 on average. Morning departures are around 10% more expensive than evening flights, on average. The most expensive time of day to fly to Costa Rica is generally in the afternoon, which is peak travel time and where the average cost of a ticket is €990.

Top tips for finding cheap flights to Costa Rica

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Costa Rica flight deals.

Reviews of the top 3 airlines flying to Costa Rica

 
Need help choosing which airline to fly with from Ireland to Costa Rica? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Air FranceOverall score based on 1467 reviews
7.4Comfort
7.0Food
8.2Crew
7.4Boarding
7.0Entertainment
Airline reviews

The food was great and the service and attitude was amazing!!

10.0 ExcellentCamila, Jul 2025CDG - SVQ
Read more Air France reviews

The food was great and the service and attitude was amazing!!

It was a great experience. The only thing I would have changed was that the bathrooms were never cleaned and they got very dirty.

Old airplanes small seats expensive tickets, not as expected overall and not comfortable according to the price

It was an OK flight with below mediocre service by their flight attendants

Wasted a lot of time trying to find the CDG lounge - it was not next to the connecting flight gate like the Air France staff said.

My experience was good overall, the quality of the food really decreased! There used to be a choice between meat and fish now it’s between chicken and pasta! In the choices of entertainment meditation has been added which is very good. Soft chair workout to improve blood circulation and avoid phlebitis should be added.

The only reason the overall rating wasn't "excellent" was due to problems in claiming luggage. The bags are delivered to the main area (Cinta 35) for domestic passengers, but to a DIFFERENT ROOM for international arrivees. After waiting 30 minutes, someone (who didn't appear to be from Air France or the airport) told us to go to another area. There we found our bags, which appeared to have been awaiting us for a while. We had to go through a bag check before leaving the airport. If we had been alerted to this possibility, or better yet, been to go directly to Cinta 34, we could have eliminated quite a bit of waiting.

Much better than the major US Carriers especially in Biz Class.

I wish that the meal included a vegetable or even a salad instead of couscous! Why serve chicken with rice AND couscous? Service was good overall though a bit lacking in friendliness. Usually on air france I've been offered a glass of champagne before dinner, wine with dinner, and a digestif after dinner. We were only offered wine this time!

It was not Air France but Air Europa. But confusion over our checked luggage. Whether it was checked all the way to Tenerife or not. It was not. Had to line up again in Departures. At least our Sky Priority was honoured. Flight was fine.

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

The boarding of took of late.The presentation of the food was horrable as was the tast of the food was cold and tastless.

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

The flight was canceled the day of the flight. United says it was FAA issue, with some 35 flights canceled and more delayed.

I love United was disappointed we had a two hour delay, however the Pilot did say safety first.

Compared with other carriers business class for an overnight was not worth the extra expense.

Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Maybe add a seat trade app for flyers that didn’t get seats together

Pros: The airplane was new and had in-flight entertainment (tablet behind seats) with new movies instead of watching on personal devices. Cons: the flight time was changed without informing us. When I booked the flight, the time was 13:30pm (also in the email confirmation). However, when I reached the airport, the time was conveniently changed to 14:55pm. When I asked at the counter, they said the flight always took off at this time. The booking was made by Air Canada, but the flight was operated by United.

The plane was filthy!!!! There were empty food wrappers in the pockets and worst of all a wad of hair where someone had obviously brushed their hair, cleaned out the brush and left the wad of hair in the pocket. It was the most disgusting thing I’ve ever seen!! The seats are so crammed together with NO leg room. The AC vent controllers do not adjust. I will likely not book another AC flight from Florida to Montreal.

This flight was canceled at the last moment and I was stranded in the Vancouver International. I spent the night there without compensation and the staff looked annoyed and wanted to get rid of the passengers without offering much help.

Everything was very good, short delay Toronto to Regina on my return to Canada but not a big deal. Thanks Kayak, Dr. Ian Stewart

Our return trips from Lisbon to Vancouver were the worst flights I have EVER been on. Our seats from Frankfurt to Vancouver were most uncomfortable. The 'table ' was not only dirty but broken. My headrest ' support' too was broken, leaving a spot where a broken attachment poked at your head. My food was the worst food I have ever had on any flight. Staff....they all looked and acted as though they hated their jobs!! The Calgary to Vancouver wasnt much better. We had NO services even though we were told of complimentary beverages etc.. That didnt happen. I asked for window seats, assured by the ticket agent I was given a window seat...NOT. Please dont make me go on. Our trip from Vancouver TO Madrid was great......so we were most discouraged at the events of our return trip.

every single person involved showed their joy, working in the airline industry - it created a very pleasant atmosphere for everyone

Very nice Crew! Not much entertainment, but it was only a short flight, so it is okay for this flight.

They kept changing the gate (6 times in 30 minutes) and then left us on the plane for 4 hours before departure. Likely was the storm, which is understandable, but the lack of communication and the e constant running between gates at opposite ends of the airport really threw me and my friend for a loop.

Everything was good till we got to yyz...then we got to the gate and there was NO GATE AGENT. We waited 15 min before disembarking. No internet No IFE Old aircraft Second leg in two weeks NOT IMPRESSED

Lots of announcements that no wheeled carry on bags were allowed on the flight, yet the overhead bins were totally full and made it uncomfortable trying to get through and significantly held up departure. Why were they allowed on when they said that they weren't? Trash only came by soon after service and I wasn't ready to dispose of it. I had to first hold on to it and after flagging and attendant was told to stuff it in the seat back! I have never run into the need to walk outside in northern winter weather at an international airport and wasn't dressed to do so in the cold pouring rain! I'm not thinking that I'll be back unless I hear things have changed.

Everything you need to know for your flight to Costa Rica

Cabin class types available on flights to Costa Rica

Cabin classes available on flights to Costa Rica. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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