€409 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 23/4. 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.
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Best Costa Rica Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours

San José
San José2 stops€656
Liberia
Liberia1 stop€690

Good to know

Low season

May

High season

December

Cheapest flight

€409
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly (13% 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.

See more FAQs

Top tips for finding cheap flights to Costa Rica

  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be July, August and September. The cheapest month to fly from Ireland is November.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Costa Rica flight deals.

Top 4 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.
8.0
DeltaOverall score based on 8511 reviews
8.6Crew
8.0Comfort
7.3Food
8.2Boarding
7.9Entertainment
Airline reviews

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

10.0 ExcellentD, Jan 2025ABE - ATL
Read more Delta reviews

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

Broken jer bridge. Poor communication about it. Lost 2 of 4 luggage pieces

We were forced to wait nearly 50 additional minutes before leaving the terminal.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

The food was good. I ate gnocchi with marinara sauce and cheese, salted caramel tiramisu. And later in the trip cheese calzone. I watched 3 movies. The selection is really good. Have new and old movies. The flight attendances were nice and cordially. Overall the 6 hours trip was really pleasant ☺️. Planning the next trip.

Extremely dosappoontined and frustrated. Refused entry to lounge in Detroit despite having Delta AMEX Reserve linked in MyDelta phone app as revommended and also having proof of account. No pillows were available for overnight flight to AMS and breakfast was not served in Delta Comfort.

This was a code share Latam Airlines flight - everything very good except there was no seatback entertainment

Food was not the best. Too many items had sauce pm them with a lot of spices The seat was not comfortable especially when you lay down

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

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.

The male attended that served are section was a snob. He did not answer my call light when my wine spilled all over the floor. I did not push it again or drew his attention to it. He just ignored the call light when he came to give us our meal, serving the people behind us first. I did not push it again or drew his attention to it to see his reaction. It was so obvious that he was ignoring us. We were in premium economy!

The plane was old Only 3 bathrooms available for economy The entertainment was old and the selection was poor

Georgian Airways check in staff initially denied us, because they thought passengers required transit visas to transfer on connecting flights. This required 70 minutes for them to call multiple people to confirm how transfers worked. They did not apologize once accepting our check in. Onboard, the four hour flight gave stale bread with spam slices as lunch. The only included drinks were still or sparkling water.

I did not get my baggage at my final destination..poor coordination with connecting flights with partner airlines (Saudi airways). Also the food was very mediocre.

Not a good one this time. The absence of internet without any information/notification ahead was really the unacceptable part. Also this new A350-900 has a serious legroom challenge for economy seats. It’s more like a medium-haul flight legroom configuration.

There was 2 hours delay before boarding and 2 hours delay after boarding while waiting in the plane

Very good crew. Food service above average. Seats very small for a 12 hours flight.

Boarding was a disaster being moved by Air France by bus to the plane. The plane should have been at the right gate.

I feel bad, but Swiss airlines is not an airlines I will ever fly again. Their cabins are basic, seats are extremely uncomfortable, crew is a hit or a miss with service. What's worse is how they make you feel they are there to make money and not make your travel needs be met or make your travel a pleasure. They charge for 2nd bags, seat selection and felt like a budget arinines frontier/spirit airline attitude and approach. Their business class is from the early 2000s, basic. Additionally, planes going to India, are old, falling apart and not maintained. Even the crew mentioned this is typical of the airline having older planes going to India. Panels detached and loose or stuck with duct tape, seats scruffed up and dirty, seatbelts roughed up. The scariest thing was when I saw a window panel next to where I was sitting loose and dangling. The crew mentioned it's only cosmetic and assured the integrity of the plane was inspected by the maintenance crew. This is where they confessed about planes going to India being old. I UNFORTUNATELY would NOT recommend Swiss airlines to anyone and will NEVER fly with them again!

Plane 3 hours late. Missed connection. No help from gate staff. App horrible. Lost connection repeatedly. No service desk. Finally got help from young girl driving cart.

Everything was good. Flight was on time, luggage pickup was quick. The staff were great. Could not ask for anything more.

We were delayed 3x and because I didn’t purchase my tickets directly from United Airlines I was told I Have to take care of it myself so I called Underpricer and they helped me but before I changed my flights I took the risk of sticking by what my tickets were and was lucky to have gotten on the original all flight with only 15 mins before take off. not sure if I will do this again

Did not even get on board. Was told I needed an esta agreement. Was not aware of this when I booked the fare and not told about them

Cabin crew was very friendly, requests were satisfied promptly and cheerfully, and the cabin was reasonably clean when I boarded. The United lounges at Newark and Heathrow are always well-run and comfortable, especially Newark. I look forward to the new lounge that will be part of the rebuild of Terminal 2 at Heathrow.

The crew was outstanding. And the food was surprisingly good. The chicken and the pasta dish were both delicious and I was supposed with a pizza twist near Landing. We hit a lot of turbulence and the crew was calm and kind. Loved the TV in screen. Tons of new releases.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

United airlines was top for my last trip in every way

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

The staff were condescending and withheld at times. There were times when they appeared to be more concerned with socializing with each other than appearing professional. I know it must be a hard job, but being chatty and handsy with each other in the public view only to be condescending to customers isn’t a good look.

In flight entertainment was good. Food tasted terrible. Service was adequate but largely unhelpful. For example, we had a short layover after the flight. When I inquired about the possibility of exiting more quickly (we were in the back), we were informed that this was not possible. On our next flight, the captain made an announcement requesting that people who did not have connecting flights to allow those who did to exit first. If given a choice in the future, I would not fly Air Canada.

Liked the size of seats. Not much food offered given length of flight.

For boarding, after family with youngsters, you should have 65 and over. Whatever rules, enforce them. It’s frustrating for those who respect them to see aggressive people rush to the gate out of turn…

Seat cushion had lost much of its give and the entertainment monitors on the old A320 fleet are small.

Regarding the onboard entertainment system: the dual audio jack plug is not compatible with a standard jack. I had to listen to the audio in one ear for the whole flight. The airline should hand out adapters. The touchscreen was flaky, sometimes it reacted to touching it, sometimes it didn't.

A snack would have been nice instead of having to buy food.

Our seats were changed 3 times in the final 24 hours, and then my wife and I ended up with two middle seats in different rows. Full flight so no changes could be made at the gate.

The flight attendant, Kearin, was delightful. He was funny, friendly, and helpful. The only problem with the flight was that a door from the above baggage compartment fell off during boarding which slightly delayed takeoff.

Air Canada seats do not have much room compared to other airlines I’ve traveled with. Also, the lack of free WiFi is a negative. All airlines need to be better about this.

Book Cheap Costa Rica Plane Tickets

Recent return flight deals

8/2sáb.
2 stopsAir Canada
19h 25mDUB-SJO
18/2mar.
2 stopsAir Canada
18h 55mSJO-DUB
€656
8/2sáb.
1 stopAir Canada
18h 25mDUB-SJO
18/2mar.
1 stopAir Canada
16h 15mSJO-DUB
€667
3/3lun.
1 stop
18h 25mDUB-SJO
10/3lun.
2 stops
20h 20mSJO-DUB
€675
21/2vie.
1 stop
16h 40mDUB-LIR
26/2mié.
1 stop
31h 45mLIR-DUB
€690
21/2vie.
2 stopsUnited Airlines
32h 24mDUB-LIR
26/2mié.
2 stopsUnited Airlines
19h 15mLIR-DUB
€701
3/3lun.
2 stopsUnited Airlines
41h 39mDUB-SJO
10/3lun.
2 stopsUnited Airlines
22h 35mSJO-DUB
€703
2/3dom.
2 stopsLufthansa
33h 42mDUB-SJO
9/3dom.
2 stopsLufthansa
35h 55mSJO-DUB
€712
2/3dom.
1 stopLufthansa
16h 53mDUB-SJO
9/3dom.
1 stopLufthansa
26h 32mSJO-DUB
€752
21/2vie.
2 stopsKLM
32h 17mDUB-LIR
26/2mié.
1 stopKLM
13h 25mLIR-DUB
€800
23/2dom.
1 stopKLM
16h 12mDUB-SJO
2/3dom.
1 stopKLM
20h 45mSJO-DUB
€870

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Recent one-way flight deals

23/4mié.
2 stops
23h 00mDUB-SJO
€409
24/4jue.
1 stop
17h 15mDUB-SJO
€446
26/4sáb.
2 stops
28h 05mDUB-SJO
€448
20/3jue.
1 stopIberia
35h 50mDUB-SJO
€581
25/4vie.
1 stopAir France
18h 25mDUB-SJO
€613
25/4vie.
2 stopsKLM
18h 30mDUB-SJO
€644
23/1jue.
1 stopIberia
35h 50mDUB-SJO
€647
23/4mié.
1 stopAir France
15h 15mDUB-SJO
€658
26/4sáb.
1 stopJetBlue
16h 39mDUB-SJO
€680
21/4lun.
1 stopKLM
31h 52mDUB-SJO
€720

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Last minute flights to Costa Rica

Last minute flight, train and bus deals

22/1mié.
multi-stop
21h 28mDUB-SJO
30/1jue.
multi-stop
18h 30mSJO-DUB
€1,015
22/1mié.
multi-stop
24h 05mDUB-SJO
30/1jue.
multi-stop
34h 52mSJO-DUB
€1,025
22/1mié.
multi-stop
24h 05mDUB-SJO
29/1mié.
multi-stop
25h 43mSJO-DUB
€1,083
22/1mié.
multi-stop
42h 45mDUB-LIR
30/1jue.
multi-stop
33h 40mLIR-DUB
€1,101
22/1mié.
multi-stop
39h 20mDUB-LIR
30/1jue.
multi-stop
33h 40mLIR-DUB
€1,163

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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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