€337 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 16/5. 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 José1 stop€619
Liberia
Liberia1 stop€696

Cheap Flight Deals to Costa Rica

 
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.

Recent return flight deals to Costa Rica

Recommended return deals departing in the coming months from the most popular airlines that fly to Costa Rica.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
 Logo
09:00 - 17:35DUB-SJO
15h 35m1 stop
 Logo
14:40 - 07:50SJO-DUB
34h 10m2 stops
€619
Find Deal
Thu, 15 May - Wed, 28 May
 Logo
09:00 - 17:35DUB-SJO
15h 35m1 stop
 Logo
15:25 - 17:50SJO-DUB
19h 25m1 stop
€635
Find Deal
Thu, 22 May - Fri, 6 Jun
 Logo
09:50 - 20:25DUB-SJO
41h 35m2 stops
 Logo
14:40 - 07:50SJO-DUB
34h 10m2 stops
€643
Find Deal
Thu, 15 May - Wed, 28 May
Air Canada Logo
09:20 - 10:44DUB-LIR
32h 24m1 stop
Air Canada Logo
16:35 - 11:10LIR-DUB
35h 35m1 stop
€696Air Canada
Find Deal
Fri, 16 May - Fri, 23 May
Air Canada Logo
09:20 - 20:25DUB-SJO
18h 05m1 stop
Air Canada Logo
07:55 - 07:45SJO-DUB
16h 50m1 stop
€708Air Canada
Find Deal
Thu, 3 Jul - Fri, 11 Jul
United Airlines Logo
11:35 - 12:26DUB-SJO
31h 51m2 stops
United Airlines Logo
07:55 - 11:10SJO-DUB
20h 15m2 stops
€710United Airlines
Find Deal
Thu, 17 Apr - Tue, 6 May
United Airlines Logo
11:35 - 11:55DUB-SJO
31h 20m1 stop
United Airlines Logo
11:13 - 07:10SJO-DUB
36h 57m2 stops
€712United Airlines
Find Deal
Fri, 16 May - Fri, 23 May
SWISS Logo
09:20 - 19:37DUB-SJO
17h 17m2 stops
SWISS Logo
12:44 - 07:20SJO-DUB
35h 36m1 stop
€728SWISS
Find Deal
Fri, 16 May - Fri, 23 May
SWISS Logo
20:15 - 13:10DUB-SJO
47h 55m2 stops
SWISS Logo
14:40 - 19:30SJO-DUB
45h 50m3 stops
€1,187SWISS
Find Deal
Fri, 4 Jul - Wed, 16 Jul
Air France Logo
09:10 - 17:25DUB-SJO
15h 15m1 stop
Air France Logo
19:40 - 22:40SJO-DUB
20h 00m1 stop
€1,263Air France
Find Deal
Fri, 27 Jun - Fri, 27 Jun

KAYAK's insights & trends for flights to Costa Rica

Get data-powered insights and trends for flights to Costa Rica to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest day to fly to Costa Rica?

The average price of all flights from Ireland to Costa Rica clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Costa Rica is Wednesday when return tickets can be as cheap as €738. On the other hand, the most expensive day to fly is Saturday, when return prices are €1,143 on average.

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 €729 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is €1,147 and €1,016 respectively.

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

The average price for all round-trip flights from Ireland to Costa Rica depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
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.

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 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low season

May

High season

December

Cheapest flight

€337
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly (27% 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

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

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.
7.4
Air FranceOverall score based on 1425 reviews
7.0Entertainment
7.4Boarding
8.2Crew
7.4Comfort
7.0Food
Airline reviews

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.

8.0 ExcellentAnonymous, Mar 2025SFO - CDG
Read more Air France reviews

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.

My wife and I had a row to ourselves after moving seats. There were no TVs and you had to buy food. So we did nothing but had a quick nap. 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.

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

Liked the hospitality . The ight took us 6 hrs to get from fort myers to ewr.

Not as good as expected Air Can needs to improve totally rated on internet as worst

Most disapointing experience. We were rerouted to Toronto, after a 7 hours flight , where we sat on the tarmac for a little over 4 hours, in a full airplain with no air. We were given a tiny cup of water twice during that wait. After the long wait we taxi out of toronto to wait another 30 min. Many people missed their conections including my kids and I. We were promised a hotel room in Montreal on the aircraft and at the exit of the aircraft, then directed to a desk after custom where me and my two kids were told that we do not get a room for the night and that we were on our own, after a back and fourth and stating what was told to us, the agent at the counter says that we are right and that we should have a room. I ask the lady if she could look into a different flight for us for the next day as I was with two you g kids and wanted them to get some rest. The gentlemen next to her jumps in and said there wss nothing without even (pretending) looking at their system, I insist and say that they could look for the kids. They seemed to have trouble with our reservation so they gave up. I told them that I needed to talk to a manager, they said there were no managers and that no one can do anything, to which I responded that there must be someone that could do something and that it does not make sense for them to repeat the same think as we are not undestanding each other. She threatns to call security and says I am rude. I say I will go, just give me the vouchers and ger response is “ not giving you the vouchers because you are rude”. I was not rude. It is normal to want to talk to a manager. I even said that the people at the counter were not resoonsible for the long journey and that there was nothing they could have done. But to threten and himiliate someone just because they ask for someone else to talk to ? I understand they are overwhelmed, but you know the quality and calibre of a company in the bad times not the smooth ones. I ended up leaving and paying for my own room and board.

We took off an hour late due to arrival airport not having enough gates. That was followed by 1:30 wait to get our bags delivered for the entire flight.

Horrifying! And I am almost 2 million miles with United. Late by 3 1/2 hours. Worst: after two hours on the plane waiting, they decided that one of the tires had been damaged and then decided to change it. Another hour and a half to change the tire!!!!! NO EXCUSE FOR THIS. The crew didn't even offer a glass of water until we had been on the plane for FIVE hours. This is the worst airline in the world. I'm simply stuck because they fly on the only routes I need.

The check-in process is not the best They should have agents in site to help with any problem especially a rebook. Why does one have to get on the phone when there were at least 8 agents around that could have help?! Flying is stressful as it is and having someone willing to do their customer service will ease some of the stress.

They canceled our flight and left us stranded to figure it out

The care and attention for my flight was great. The seats were not as comfortable.

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.

Separated me and my wife and wife’s sister in far apart different seats even though I booked them all together. Just scams after scams to make us pay more. Worst airline

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.

Bad again. I fly a lot and half my flights with air Canada are delayed. This one got delayed 4 hours.

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.

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…

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

The seats really could do with some extra padding. The staff member who checked me in at Calgary was amazing. Friendly and lovely.

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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