€391 Find Cheap Flights from Dublin 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 Dublin to Costa Rica departing on 7/5. 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.
1 adult
1 adult, Economy, 0 bags

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Best Costa Rica Flight Deals from Dublin

Cheapest return prices found by our users on KAYAK in the last 72 hours
San José
San José2 stops€668
Liberia
Liberia1 stop€778
San José
San José2 stops€668
Liberia
Liberia1 stop€778

Cheap Flights from Dublin to Costa Rica

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Dublin 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 from Dublin to Costa Rica

Thu, 10 Sep - Thu, 24 Sep
Multiple Airlines Logo
19:00 - 18:30
DUB
-
SJO
30h 30m
2 stops
Multiple Airlines Logo
07:00 - 13:30
SJO
-
DUB
23h 30m
2 stops
€668Multiple Airlines
Thu, 10 Sep - Thu, 24 Sep
Multiple Airlines Logo
06:30 - 18:30
DUB
-
SJO
19h 00m
2 stops
Multiple Airlines Logo
07:00 - 10:15
SJO
-
DUB
20h 15m
2 stops
€669Multiple Airlines
Thu, 11 Jun - Thu, 18 Jun
Lufthansa Logo
06:00 - 17:35
DUB
-
SJO
18h 35m
1 stop
Lufthansa Logo
19:25 - 11:35
SJO
-
DUB
33h 10m
1 stop
€722Lufthansa
Thu, 11 Jun - Thu, 18 Jun
Multiple Airlines Logo
09:50 - 22:00
DUB
-
SJO
19h 10m
2 stops
Multiple Airlines Logo
19:25 - 22:15
SJO
-
DUB
19h 50m
1 stop
€750Multiple Airlines
Thu, 28 May - Fri, 12 Jun
SWISS Logo
08:40 - 14:05
DUB
-
SJO
36h 25m
1 stop
SWISS Logo
15:50 - 17:50
SJO
-
DUB
19h 00m
1 stop
€752SWISS
Tue, 8 Sep - Wed, 30 Sep
British Airways Logo
06:30 - 19:52
DUB
-
SJO
20h 22m
2 stops
British Airways Logo
13:05 - 15:45
SJO
-
DUB
19h 40m
2 stops
€754British Airways
Tue, 8 Sep - Wed, 30 Sep
British Airways Logo
06:30 - 19:52
DUB
-
SJO
20h 22m
2 stops
British Airways Logo
13:05 - 15:45
SJO
-
DUB
19h 40m
2 stops
€755British Airways
Tue, 8 Sep - Wed, 30 Sep
British Airways Logo
07:30 - 19:52
DUB
-
SJO
19h 22m
2 stops
British Airways Logo
07:00 - 09:40
SJO
-
DUB
19h 40m
2 stops
€756British Airways
Thu, 28 May - Tue, 2 Jun
United Airlines Logo
09:20 - 10:44
DUB
-
LIR
32h 24m
2 stops
United Airlines Logo
16:30 - 09:45
LIR
-
DUB
34h 15m
2 stops
€792United Airlines
Fri, 5 Jun - Tue, 9 Jun
United Airlines Logo
12:30 - 10:44
DUB
-
LIR
29h 14m
2 stops
United Airlines Logo
16:30 - 07:20
LIR
-
DUB
31h 50m
2 stops
€799United Airlines
Booking Insights

KAYAK's insights & trends for Dublin to Costa Rica flights

Get data-powered insights and trends into flights from Dublin 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 Dublin to Costa Rica?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dublin 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 Dublin to Costa Rica is March, when tickets cost €607 (return) on average. On the other hand, the most expensive months are October and May, when the average cost of return tickets is €699 and €683 respectively.

How far in advance should I book a flight from Dublin 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 from Dublin 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 Dublin to Costa Rica, you should book around 2 weeks before departure, which saves you about 10% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight€386
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly (8% 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 Dublin 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 Dublin to Costa Rica.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Dublin to Costa Rica?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Dublin 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 Dublin 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 Dublin 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 Dublin 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 Dublin to Costa Rica up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines flying from Dublin to Costa Rica

 
Need help choosing which airline to fly with from Dublin 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.
7.8
KLMOverall score based on 1512 reviews
8.4Crew
7.8Boarding
7.7Comfort
7.3Food
7.1Entertainment
Airline reviews

As per usual when you Hit the UK it's a slow process through customs Not as efficient at Thailand for sure

10.0 ExcellentDiane, Apr 2026
AMS - HUY
Read more KLM reviews

As per usual when you Hit the UK it's a slow process through customs Not as efficient at Thailand for sure

It was really nice journey i personally recommend klm flight

Empty seats next to me - wish it had been for a longer flight!!

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Flight was on time, staff are friendly and helpful onboard.

Terrible last row seats many seats available but no offer to move to better seat

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Staff were not attentive, wifi did not work, cut my head in the bathroom due to the position of the soap on the sink, had blood running down my face, told staff, they had no expression no sympathy, didn't even say "sorry", they said "oh we will have a look at that" about 10 mins later the purser brought me a bandaid, still no sorry.... Shocking

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Food was awful. TV didn’t work for long haul flight and my husband needed credit. Staff was nice and did their best but overall conditions were very uncomfortable.

I will never fly ANA again. They lost one of my large pieces of checked luggage, the heaviest one with the most valuable items in it, and they said they will not send me an email unless they can't find it, even though the paper they gave me to track the status of my lost luggage requires a code from an email they are supposed to send me so I can do baggage tracing. They claim to be an international airline, but they also insist on calling a Japanese telephone number to confirm where to send the lost baggage if they find it. It is impossible to find an actual contact email address for customer support on their website, and their AI chatbot is unhelpful, directing you to a webpage that says it is for contact information but does not have any actual email addresses or phone numbers listed on it. My seat in economy did not recline at all, even though I was not sitting in an exit row nor the very back row. I had to sit in the fully upright position for over ten hours of international travel. Awful experience overall.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

I upgraded my seat and was promised it would be next to the emergency door for extra leg room and they said it was premium plus but it was at the back of the plane...same thing happened from Newark to Dubai

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

I dread trans-Pacific flights. They are very long. This was my first time on Universal, and it was my best crossing ever. The staff were professional, the hospitality was great, and the food was delicious. The entertainment system filled the long flight hours. I will seek out Universal flights from now onwards. 🙂

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

The seat design in the premium economy section leaves virtually no room under the seat to store a bag or purse. Other than that, it was a great flight. Arrived early.

I want to thank Carlos at the Miami AC desk - he was amazing and went over and above to help us out. Thank you Carlos and all the best to you!!! You made our faith in AC feel great! Sincerely, David Cubitt

Our aircraft arrived late into Tokyo from Vancouver, so departure was delayed slightly for cabin cleaning and preparation. After boarding the full flight, we experienced an additional delay due to de-icing, which was an unexpected but necessary step. The pilot advised that the first two hours would likely include light to moderate turbulence, which proved accurate. As a result, cabin service was understandably delayed. This isn’t a complaint — simply a summary of the circumstances. Once we passed through the rough patch, the remainder of the flight was smooth, our pre ordered vegan meals were good and we arrived in YVR close to the expected time. Kudos to the crew for working professionally and diligently throughout the situation. Will fly again long haul with Air Canada.

I would like to get my money back. I flight was 4 hours late on the way to detroit, And same on my way back to Brussels they cancelled my flight and give me an other ticket and i had to wait 5 hours.

My original flight was cancelled -- but I have to mention the excellent service I was given by the agent working at check-in who found me an earlier flight -- and helped me navigate security, ensured my baggage kept up with the quick check-in and boarding process -- and just generally made the re-booking process a breeze. Thank you! On flight was fine, but we unfortunately meant no in-flight service -- no water, or coffee (it was an early morning flight...), but the crew was pleasant and accommodating throughout.

Wifi was great. Kind air crew and comfortable seating. Also liked the entertainment options.

I swear airplane seats keep getting smaller and smaller but everything else was great. Smooth sailing and we got in early.

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.

Refreshments and Air Hostess was good. Issues with customs in Toronto caused flight to depart and left me behind twice. Vouchers for delayed flight needs to increase.

Seating wasn’t too cramped; I don’t understand how luggage bins get full if there are enough for each person. Shouldn’t there be room for the designated carry-on and personal item for each passenger at their seat? THEN, IF for some reason extra room is available for someone who prefers it, then shifts can occur. I’m simply saying it seems that I should have primary access to the storage bin at my seat and underneath in front of me. It was suggested that I go to the back of the plane to store my carry-on when I paid to have access to the first seat after 1st class. The additional stress and inconvenience could be avoided and I think all passengers and flight crew are interested in guidelines that are fair, clear, and reduce tension.

Everything you need to know for your flight from Dublin to Costa Rica

Information on your arrival and departure airports