€425 Find Cheap Flights to Costa Rica – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Best Costa Rica Flight Deals

Cheapest return prices found by our users on KAYAK in the last 5 days
Sort by: Cheapest
San José
14h 35m2 stops
from €645per person
Liberia
21h 32m2 stops
from €704per person
Booking Insights

KAYAK's insights & trends for flights to Costa Rica

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

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

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 36% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low season

September

Cheapest flight

€425
Best time to beat the crowds but there is an average 41% increase in price.
Most popular time to fly (3% 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.

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.
7.5
Air FranceOverall score based on 1650 reviews
7.4Comfort
7.5Boarding
8.2Crew
7.0Entertainment
7.1Food
Airline reviews

Air France removed our luggage from the plane before it took off, seemingly intentionally, didn't notify us until after we reported it missing at SFO, and is giving us no updates on when, or whether, they will deliver it.

2.0 MediocreAlan, Jul 2026
Read more Air France reviews

Air France removed our luggage from the plane before it took off, seemingly intentionally, didn't notify us until after we reported it missing at SFO, and is giving us no updates on when, or whether, they will deliver it.

The boarding was efficient. The entertainment system was a bit unstable but Air France has a good selection of movies.

Communication on the delay, rebooking and how to get a hotel was poor. Mails, airport check-in and transfer desk said different things.

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

Good. Food items are ok but not really healthy (no protein for the vegetarian option, just a total of 2 gr total) so not fulfilling. Also, no airline is educating passengers to behave and have common sense: let the one sitting by the window pass first, leave toilets clean after use, etc. Humanity is just getting rude and more disgusting by the day and without education or enforced common sense no

Excellent apart from transport to actual plane 10 minutes from the actual gate , walking out in the tarmac in the rain and having to climb stairs to enter while holding luggage.

Boarding was smooth and on time. The seat was comfortable and the entertainment worked. Staff were gracious.

Everything went smoothly with Air France. There was a delay in departure which seemed to relate to the immigration services being short staffed.

My seat was so uncomfortable, and the headrest was broken. Very very disappointing for the price I paid.

I paid extra for a seat with more leg room but they changed the plane and found myself in an ordinary seat. This is expensive at 50€

Did not like the check in guy quibbling over a couple pounds at the luggage weigh in

The seats were uncomfortable, as if the cushions haven't been switched out in many years. I felt like I was on an old bus. The food was delicious. thank you. Onboard entertainment, very limited. Unless you like violent movies. Why in the world would you have such severely violent movies on a plane? if you don't want to see such things, you don't have a choice. Have you considered that when choosing entertainment? Good god. Why would you have the Godfather? Or black women being brutally beaten with a club? Why in the hell would you put that kind of material on a plane? As for Kayak: Why when I ordered Qantas, was the plane on United?

Overall we had a good experience during our flight from San Francisco to Houston.

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

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

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

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

Lufthansa placed a 300 lb passenger in the aisle seat and I was stuck in the middle leaning sideways with no arm rest or ability to sit up straight and fully use my seat (due to encroachment-the seats are very narrow) the entire flight.

I had very little time to change planes originally in Denver after my flight from Omaha. I had an hour and a half layover in Denver originally and my flight leaving Omaha was delayed an hour because they had to change a tire, which I can understand. When I reached Denver my other flight was late, fortunately, but I still had only 10 minutes to run about a mile through the airport to get to my flight. Again, fortunately, I am a healthy 71-year-old and was able to accomplish this feat. However, the stress was more than necessary to bear.

If other people in flight, followed instructions and were much cleaner.

Flight was delayed twice which made our arrival extremely late (actually into next day). Not an easy travel. But when we requested assistance for boarding we were really impressed with how they helped us! Strongly praise their assistance.

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

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 plane was new. Should give more options on food.

No food other than a tiny snack. The flight is too long for not having a more substantial food option, other than buying the overprices and mostly non-plant-based options from the menu.

It was a refreshing experience from the past few times I have travelled with Air Canada.

rerouted on red eye. arrived 9 hours late with no luggage. still missing after 3 days. up to 45 day to deal with it. SHAME

The crew is super friendly and helpful , boarding was quick and easy , the prices are too high for a an airline that doesn’t provide complementary meals or snacks for long flights

The flight crew was nice and courteous. The food was terrible. There are no in-flight entertainment services, the plane is outdated and dilapidated, and the flight is delayed. Both from Newark and Montreal. Too bad.

We loved our flight attendant (Emma, from Scotland), the meals were perfectly spaced out, and the in-flight entertainment was super generous and delightful.

Why don't they board from the back of the plane to the front. We have to move by all the people and their luggage to get to the seats.

The boarding call announcements versus the Staff announcements versus the digital signage board on the out-going and returning flights WERE NOT IN SYNC. I was sent through check and re-checks 3 times. WHY?

With three empty seats across the aisle from me I politely asked the crew if I could sit in one of those seats. They initially told me I couldn't do it for my safety. When I pressed them again they blamed the captain. So which was it? I didn't appreciate either nonsense explanation simply because they didn't want to honor my request.

Great room between the seats, food was excellent, very comfortable overall and could have stayed on the plane even longer

Flight was great (only a short hop from London to Dublin). Wi-Fi available on board(around 2 euros), power sockets, complimentary water and biscuit. Landin/ takeoff all went without a flaw.

Staff member at boarding gate was rude, and more than once!

The issue wasn’t necessarily with British Airlines but was a reaction to their delayed flight from Miami to London on Aug 18. Due to the delay out of Miami, we missed our BA flight with Aer Linguis on the 19th from London to Cork, Ireland. The attendant in London was helpful and rebooked us for a flight later that same day ($120). However, she failed to mention that as a result of the missed flight, our returning flight was also cancelled and the rebooking cost was $451. Disappointed at the lack of communication between airlines and between the agent and the customer.

Lost bag on an hour and a half flight with no connections - ridiculous!

You lost my luggage on the trip to Dublin and again on the way back, still waiting on luggage.

More options for your flight to Costa Rica

Complete your trip to Costa Rica with a hotel stay or car hire