€439 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 4/3. 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
0 bags

Search hundreds of travel sites at once for deals on flights to Costa Rica

In the last 7 days, travellers have searched 41,299,237 times on KAYAK, and here's why:

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Best Costa Rica Flight Deals from Ireland

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

San José
San José1 stop€546
Liberia
Liberia2 stops€629

Good to know

Low season

May

High season

December

Cheapest flight

€439
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly (15% more expensive on average)
Flight from Dublin to San José

FAQs - booking Costa Rica flights

  • How long is the flight to Costa Rica?

    An average direct flight from Ireland to Costa Rica takes 23h 39m, covering a distance of 13301 km. The most popular route is Dublin - San José with an average flight time of 15h 00m.

  • What is the cheapest flight to Costa Rica?

    The cheapest ticket to Costa Rica from Ireland found in the last 72 hours was €542. The most popular route is from Dublin to San José and the cheapest round-trip airline ticket found on this route in the last 72 hours was €542.

  • What are the most popular destinations in Costa Rica?

    Based on KAYAK flight searches, the most popular destination is San José (90% of total searches to Costa Rica). The next most popular destination is Liberia (10%).

  • How does KAYAK’s flight Price Forecast tool help me choose the right time to buy?

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

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 8604 reviews
8.6Crew
7.9Entertainment
7.9Comfort
8.2Boarding
7.3Food
Airline reviews

Typically I give delta excellent reviews. Our flight was delayed 2hrs, I was one of the fortunate ones who were able to get to my connecting flight. Also, annoying that on the connecting flight boarding personnel make me put away a small bag into my carryon. It small enough to put in back pocket seat, why hold me and the line up to just push it into my carryon.

8.0 Excellentp, Dec 2024CRW - ATL
Read more Delta reviews

Typically I give delta excellent reviews. Our flight was delayed 2hrs, I was one of the fortunate ones who were able to get to my connecting flight. Also, annoying that on the connecting flight boarding personnel make me put away a small bag into my carryon. It small enough to put in back pocket seat, why hold me and the line up to just push it into my carryon.

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

The Pilot was one of the best I've had, very informative about turbulence and got us to our destination early

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.

Ongoing flight was delayed. Staff at bag recheck was able to get us on an earlier flight. With only 20 minutes till take off we feared our bags would not make the new earlier flight. We were most delighted that they did and were there when we landed. Delta came through

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

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.

A disaster. Air France is a real joke. They overcharge us customers for absolutely nothing. Service was very poor, food was mediocre, entertainment non existent, etc. We paid thousands of dollars for our business class tickets and then we were told in Paris we could not access its lounge. Really Air France ? Congratulations on irritating your customers to the sky high level and ensuring we will do everything in our power to discourage others to travel with you.

The first half from DC to Paris was very good and the staff were very helpful and humble BUT flight from Paris to Mumbai was sad. 1) it was packed. 2) no space on head compartment 3) crews were unresponsive to the calls 4) one crew member literally banged the bottle of water after giving me glass of water. A little water splashed on me and she was unapologetic 5) with so many hours of flight, little leg space should be taken care else don’t fill your airline till brim which affects your crew and they remove anger on us. 6) huge line for washrooms. 7) 2nd half journey was pathetic

At check-in at Guarulhos Airport, I was coerced to pay EUROS 100 for each of my two teenage kids travelling on economy premium on the same flight (total charge of EUROS 200) to AIR FRANCE on the rational that they were on a different class and therefore they would require additional care from the flight crew. My wife and I would be (and actually flew) only a few meters from our kids on business class in the same flight. Air France took EUROS 200 from me in exchange for absolutely nothing. My kids are seasoned travelers and independent, and in any event, they were not given any special or any other assistance or attention by Air France flight crew as result or in connection with the fee charged from me at any given time during the flight to Paris - so ABSOLUTELY NO SERVICE WAS PERFORMED AND THE FEE WAS SIMPLY ANOTHER WAY OF “MILKING “ EXTRA EUROS 200 FROM ME. Worse, Air France made us wait for everyone to deplane in Paris to let us deplane - after an Air France Paris representative ridiculously confirmed that our kids were our kids, with our kids at that time already by our side seating in business class. We almost lost our connection to Malta as a result. Such a scheme from Air France is outrageous – especially because it penalizes its customers flying in business class or in first class. I would have imagined that Air France would have wanted to attract clients to fly its premium classes – not to charge cheap EURO 100 fees and to keep them waiting to deplane with their families after 12 hours flights at their destination. You won’t see us any time soon Air France and best of luck with your strategy !

Flight was late over a hour just like the first one. WiFi was down.

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

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

Flight home lot's of room shame I never noticed that they ripped my suitcase and didn't notice it to I got toy destination and had to buy new set

This was a short flight with no food. The attendants were great but the comfort was poor: just to cramped. The flight from Denver to Frankfort was excellent! Seating was roomier, food was good, service was good. This was a great experience.

They opened my checked bag and even though my lock was tsa approved, they loose my lock and left my bag just like that. Incompetent people, very upset about it. I’ll try to avoid traveling with united

Slight delay but not bad. UA app worked well! Got regular updates of gate changes, etc. Don't have any complaints.

No entertainment system or wifi on a 12 hour flight. They failed to include GF meals And snacks as requested on my ticket so I had very little available to eat. Crew seemed indecisive.

The idea of needing to go outside in the winter to board in icy cold temperatures is totally a non starter for me. Seats were very uncomfortable though the leg room not too terrible. Attendants were nice

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.

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.

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.

My seat wouldn't recline. But lots of leg room was great. Good flight.

Could not switch flights. No help from check in Four people doing nothing. Two hour wait on telephone but no other flights available. Overall experience sucked.

Everything was excellent. Just keep doing what you are. I would travel with this airlines gain.

Book Cheap Costa Rica Plane Tickets

Recent return flight deals

15/1Wed
1 stop
18h 25mDUB-SJO
11/2Tue
1 stop
16h 15mSJO-DUB
€546
17/1Fri
2 stops
19h 25mDUB-SJO
30/1Thu
2 stops
23h 40mSJO-DUB
€558
17/1Fri
2 stopsAir Canada
19h 25mDUB-SJO
27/1Mon
2 stopsAir Canada
42h 55mSJO-DUB
€563
15/1Wed
1 stopAir Canada
18h 25mDUB-SJO
17/2Mon
2 stopsAir Canada
40h 05mSJO-DUB
€573
18/1Sat
2 stopsUnited Airlines
33h 56mDUB-SJO
1/2Sat
2 stopsUnited Airlines
18h 30mSJO-DUB
€583
9/4Wed
2 stopsUnited Airlines
31h 21mDUB-SJO
21/4Mon
2 stopsUnited Airlines
39h 32mSJO-DUB
€586
1/2Sat
1 stopLufthansa
32h 44mDUB-LIR
8/2Sat
2 stopsLufthansa
32h 06mLIR-DUB
€670
31/1Fri
2 stopsLufthansa
27h 25mDUB-SJO
7/2Fri
1 stopLufthansa
15h 55mSJO-DUB
€673
31/1Fri
2 stopsDelta
22h 17mDUB-SJO
7/2Fri
2 stopsDelta
19h 45mSJO-DUB
€915
22/3Sat
1 stopDelta
31h 20mDUB-LIR
29/3Sat
1 stopDelta
14h 55mLIR-DUB
€2,857

Search by stops

Search by airline

Search by price

Recent one-way flight deals

4/3Tue
2 stops
21h 25mDUB-SJO
€439
4/3Tue
2 stops
28h 25mDUB-SJO
€470
20/3Thu
1 stopIberia
35h 50mDUB-SJO
€584
20/3Thu
1 stopIberia
35h 50mDUB-SJO
€585
20/2Thu
1 stopAir France
17h 55mDUB-SJO
€664
21/1Tue
1 stopAir France
31h 15mDUB-SJO
€736
23/1Thu
2 stopsKLM
19h 22mDUB-SJO
€754
15/1Wed
1 stopKLM
15h 35mDUB-SJO
€845
21/1Tue
3 stopsTurkish Airlines
35h 08mDUB-SJO
€990
21/1Tue
3 stopsTurkish Airlines
41h 03mDUB-SJO
€991

Search by stops

Search by airline

Search by price

Last minute flights to Costa Rica

Last minute flight, train and bus deals

19/12Thu
multi-stop
19h 40mDUB-SJO
27/12Fri
multi-stop
19h 25mSJO-DUB
€900
19/12Thu
multi-stopLufthansa
19h 40mDUB-SJO
27/12Fri
multi-stopLufthansa
24h 25mSJO-DUB
€926
19/12Thu
multi-stop
16h 25mDUB-SJO
27/12Fri
multi-stop
19h 25mSJO-DUB
€1,052
19/12Thu
multi-stop
19h 40mDUB-SJO
13/1Mon
multi-stop
38h 00mSJO-DUB
€1,060
19/12Thu
multi-stopLufthansa
16h 25mDUB-SJO
13/1Mon
multi-stopLufthansa
25h 05mSJO-DUB
€1,070
19/12Thu
multi-stopLufthansa
19h 40mDUB-SJO
27/12Fri
multi-stopLufthansa
24h 25mSJO-DUB
€1,077
19/12Thu
multi-stopKLM
18h 00mDUB-SJO
27/12Fri
multi-stopKLM
19h 00mSJO-DUB
€1,376
19/12Thu
multi-stopKLM
31h 00mDUB-SJO
13/1Mon
multi-stopKLM
29h 30mSJO-DUB
€1,443
19/12Thu
multi-stopUnited Airlines
18h 55mDUB-SJO
27/12Fri
multi-stopUnited Airlines
19h 20mSJO-DUB
€1,484
19/12Thu
multi-stopUnited Airlines
18h 55mDUB-SJO
10/1Fri
multi-stopUnited Airlines
18h 30mSJO-DUB
€1,710

Search by stops

Search by airline

Search by price

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.

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.