€283 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 12/3. 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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Best Costa Rica Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours
San José
San José1 stop€596
Liberia
Liberia1 stop€640
San José
San José1 stop€596
Liberia
Liberia1 stop€640

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

Sun, 9 Nov - Sun, 23 Nov
Air Canada Logo
09:00 - 22:55DUB-SJO
19h 55m1 stop
Air Canada Logo
08:35 - 07:10SJO-DUB
16h 35m1 stop
€585Air Canada
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Sun, 9 Nov - Sun, 23 Nov
Air Canada Logo
09:00 - 23:15DUB-SJO
20h 15m2 stops
Air Canada Logo
08:35 - 07:10SJO-DUB
16h 35m1 stop
€596Air Canada
Find Deal
Sun, 9 Nov - Sun, 23 Nov
Multiple Airlines Logo
06:15 - 22:55DUB-SJO
22h 40m2 stops
Multiple Airlines Logo
08:35 - 17:20SJO-DUB
26h 45m2 stops
€608Multiple Airlines
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Mon, 24 Nov - Tue, 2 Dec
Multiple Airlines Logo
05:10 - 22:55DUB-SJO
23h 45m2 stops
Multiple Airlines Logo
08:35 - 07:10SJO-DUB
16h 35m1 stop
€623Multiple Airlines
Find Deal
Mon, 24 Nov - Tue, 2 Dec
United Airlines Logo
09:00 - 19:53DUB-SJO
16h 53m2 stops
United Airlines Logo
14:20 - 08:10SJO-DUB
35h 50m2 stops
€678United Airlines
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Sat, 22 Nov - Thu, 4 Dec
United Airlines Logo
09:30 - 19:53DUB-SJO
16h 23m1 stop
United Airlines Logo
14:00 - 09:55SJO-DUB
13h 55m1 stop
€682United Airlines
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Tue, 25 Nov - Tue, 2 Dec
KLM Logo
05:55 - 18:25DUB-SJO
18h 30m1 stop
KLM Logo
20:30 - 16:20SJO-DUB
13h 50m1 stop
€704KLM
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Wed, 3 Dec - Wed, 28 Jan
KLM Logo
05:55 - 18:25DUB-SJO
18h 30m1 stop
KLM Logo
20:30 - 12:40SJO-DUB
34h 10m1 stop
€722KLM
Find Deal
Mon, 24 Nov - Wed, 3 Dec
Lufthansa Logo
05:10 - 18:25DUB-SJO
19h 15m2 stops
Lufthansa Logo
15:50 - 17:10SJO-DUB
19h 20m3 stops
€726Lufthansa
Find Deal
Mon, 24 Nov - Mon, 1 Dec
Lufthansa Logo
05:10 - 18:25DUB-SJO
19h 15m2 stops
Lufthansa Logo
20:10 - 22:45SJO-DUB
20h 35m3 stops
€734Lufthansa
Find Deal
Booking Insights

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 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 February, when tickets cost €655 (return) on average. On the other hand, the most expensive months are December and October, when the average cost of round-trip tickets is €929 and €811 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 a flight from Ireland to Costa Rica, you should book around 3 weeks before departure, which saves you about 22% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight€283
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly (25% 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 €685. On the other hand, the most expensive day to fly is Saturday, when return prices are €1,055 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 retur flights cost €757 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 €848.

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 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.
7.4
Air FranceOverall score based on 1476 reviews
7.0Entertainment
7.0Food
7.4Boarding
8.2Crew
7.4Comfort
Airline reviews

Excellent, Lima to Paris. But Paris to Amsterdam, delayed, missed my flight and KLM treated its missed flights passengers very badly, terribly bad. No hotel accommodation given. Passengers were told to find their own hotel accommodation and claim at reasonable rate and left the booth and literally with armed Police Officers listening to passengers complains. For three hours, after moving by Uber from hotel to hotel and calling and booking online, no hotel was available. I had to return to the airport and seat/sleep on the benches, suffering the cold, and rats running around until my new allocated flight the next day. It was the most terrible KLM treatment even seen and being a Business Class passenger. Still mentally suffering to date as a result.

4.0 OkayElizabeth, Oct 2025LIM - CDG
Read more Air France reviews

Excellent, Lima to Paris. But Paris to Amsterdam, delayed, missed my flight and KLM treated its missed flights passengers very badly, terribly bad. No hotel accommodation given. Passengers were told to find their own hotel accommodation and claim at reasonable rate and left the booth and literally with armed Police Officers listening to passengers complains. For three hours, after moving by Uber from hotel to hotel and calling and booking online, no hotel was available. I had to return to the airport and seat/sleep on the benches, suffering the cold, and rats running around until my new allocated flight the next day. It was the most terrible KLM treatment even seen and being a Business Class passenger. Still mentally suffering to date as a result.

3 hour delay but out of their control. App said I get vouchers but when I applied for them, they were nowhere to be found in my account

I bought business class tickets but the seats are exactly like economy with no comfort seats nor an empty seat next to me provided. Very poor, low quality airline.

I don't understand the concept of paying to get your personal luggage onboard and then asked to check it in.... either sell the space or don't, its a hassle to carry those all through the airport just to make a check in at the last minute.

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.

Flight was good but there are way to many announcements for credit cards etc.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

My flight was delayed about 1 1/2 hours in Chicago, but other then that it was a good flight.

Staff members were not helpful they ignored all calls for an attendant.

Lost luggage, they need a baggage service representative available all times in Atlanta

1.It will be better if sandwich is warm. 2.The food is too salty. 3.Breakfast needs some vegetables or fruits.

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.

Obviously the leg room...but I guess that's what business class would be ..expensive though.

This was the end of our honeymoon and our connecting flight to Philly was canceled while we were in our layover due to “maintenance”. Filing a claim to get compensation but would not fly Air Canada again.

Flight was not affected by the Air Canada strike. Complimentary beer and wine offered on flight.

Real smooth and easy, Real good leg room in coach!

Flight was canceled due to labor dispute. Their customer service said I might be ok since strike was on sat. and I was flying Friday. The next morning it was canceled. It can ruin a trip and add stress.

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.

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.

Bought a seat in a flight that got changed out so ended up paying for a seat I would have had if I hadn't paid.

Food was much better than my outbound flight. On-time. Good service. I had a problem with my entertainment screen, but the attendant fixed it promptly.

It was chaotic. It was overbooked so we didn't have seats until the end but they turned out to be good seats. The gate was at the end of the airport. We had to get busses to the tarmac and board. It just seemed chaotic. Flight was OK. Food was not so good. Lufthansa used to be such a great airline and now as it's with everything else: If you have money you get comforts but if you don't then you end up below deck with the rest of the cattle.

Staff was very professional friendly food was okay i used the lufthansa app and it was great told me immediately what gate I should go i would fly with lufthansa anytime

Crew was very courteous, friendly and professional. Caring and attentive.

Very friendly, service oriented and responsive crew. Very pleased with th service!

Good legroom. Attentive crew. Wine quality poor, you can do better

We boarded the plane and waited for 30 minutes ultimately for them to cancel the flight due to engineering issues.

The plane was very clean. The bathroom was clean as well. The land crew were very polite and informative and helpful. They informed me that there is a long way and challenging to go from international terminal to national terminal and in addition to getting my suitcases and going through customs and dropping them again for my second leg of trip which was San Francisco to Los Angeles . I have left knee issue and had a recent fall with aching muscles all over, the land crew suggested wheelchair help for me, God bless her. If I did not have help, I could not make it to my last terminal. Thank you UNITED AIRLINE!

Love the little chocolate bars, and consumer rights in EU regarding stepped refunds when flights are delayed.

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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