€321 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 26/2. 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€637
Liberia
Liberia1 stop€649
San José
San José2 stops€637
Liberia
Liberia1 stop€649

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

Mon, 2 Feb - Sat, 14 Feb
Multiple Airlines Logo
07:00 - 11:37
DUB
-
SJO
34h 37m
2 stops
Multiple Airlines Logo
22:00 - 13:35
SJO
-
DUB
33h 35m
1 stop
€637Multiple Airlines
Tue, 5 May - Wed, 20 May
Multiple Airlines Logo
18:35 - 17:35
DUB
-
SJO
30h 00m
1 stop
Multiple Airlines Logo
08:00 - 08:15
SJO
-
DUB
17h 15m
1 stop
€645Multiple Airlines
Tue, 5 May - Wed, 20 May
Multiple Airlines Logo
09:50 - 22:00
DUB
-
SJO
19h 10m
1 stop
Multiple Airlines Logo
19:20 - 07:55
SJO
-
DUB
29h 35m
2 stops
€646Multiple Airlines
Sat, 6 Jun - Sun, 14 Jun
Multiple Airlines Logo
13:15 - 12:20
DUB
-
LIR
30h 05m
1 stop
Multiple Airlines Logo
13:20 - 11:30
LIR
-
DUB
15h 10m
1 stop
€649Multiple Airlines
Sat, 6 Jun - Sun, 14 Jun
Multiple Airlines Logo
09:40 - 12:20
DUB
-
LIR
33h 40m
2 stops
Multiple Airlines Logo
13:20 - 11:30
LIR
-
DUB
15h 10m
1 stop
€658Multiple Airlines
Wed, 28 Jan - Sun, 1 Feb
Air Canada Logo
09:00 - 00:05
DUB
-
SJO
21h 05m
1 stop
Air Canada Logo
08:35 - 07:10
SJO
-
DUB
16h 35m
1 stop
€662Air Canada
Mon, 1 Jun - Thu, 3 Sep
Air Canada Logo
09:50 - 22:00
DUB
-
SJO
19h 10m
1 stop
Air Canada Logo
07:15 - 08:15
SJO
-
DUB
42h 00m
2 stops
€671Air Canada
Tue, 23 Jun - Thu, 9 Jul
Lufthansa Logo
05:55 - 17:35
DUB
-
SJO
18h 40m
1 stop
Lufthansa Logo
19:25 - 22:15
SJO
-
DUB
19h 50m
1 stop
€682Lufthansa
Sat, 6 Jun - Sun, 14 Jun
WestJet Logo
09:40 - 12:20
DUB
-
LIR
33h 40m
2 stops
WestJet Logo
13:25 - 08:35
LIR
-
DUB
36h 10m
2 stops
€702WestJet
Sat, 24 Jan - Sat, 31 Jan
United Airlines Logo
09:30 - 13:10
DUB
-
LIR
33h 40m
2 stops
United Airlines Logo
17:15 - 07:30
LIR
-
DUB
32h 15m
1 stop
€721United 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 September, when tickets cost €678 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of return tickets is €986 and €846 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 14% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight€321
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly and prices are also 9% lower 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.
7.4
Air FranceOverall score based on 1520 reviews
7.4Comfort
7.0Entertainment
7.0Food
8.2Crew
7.4Boarding
Airline reviews

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

4.0 OkayAnonymous, Jan 2026
MRU - CDG
Read more Air France reviews

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

Not consistent with the food quality (I mean taste not freshness)

Safe and stable made me sleepy and I slept and dreamt 😂😂😂😂

Food was really mediocre for premium economy in comparison to other airlines… the crew was nowhere to be found… 14 hour flight…

I don’t like that an equipment change caused my seat to change from 23A to 44A. The boarding was also delayed. The crew were excellent, however and very attentive. The food was not bad.

Worst airlines either. First leg was delayed because of crew not available. My connection was missed so they booked me automatically the next day! But, impossible to get anyone on site, web site does not let me access my reservation anymore, confirmed by useless agents over the phone. My 2-leg trip with part in business class arriving at 4:10pm ends up in an awful 3-leg arriving at 9pm the next day with no way to even choose the seats and of course at the very end of the plane. I can understand problems arrive but the way Air France handle it is just unacceptable. You are on your own. Apparently getting you to your destination is the only thing they consider their duty. The customer experience and fatigue is none of their concern. And I have a status with them. I will reconsider my priorities when flying with Air France and encourage everyone to do the same.

Our flight crew were terrific. And they handle a difficult passenger with finesse.

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.

l really enjoy very much the flight was very pleasant

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.

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.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

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

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

Flight was delayed and missed my connection Lufthansa didn’t respond.

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.

Upgraded to sit at the exit door so good leg room.

On the flight from Montreal to Calgary the flight attendant we had was excellent. Unfortunately I did not get her name but she made the flight very comfortable and enjoyable.

It was delayed by almost 90 minutes and that messed up our plans but it was beyond UA’s control that is what we heard

In both directions, one of the two flights was delayed in departing. due to mechanical issues (not weather). That tells me that inspection and maintenance is not being done often enough to prevent such from occurring. In the outbound direction, the second leg was delayed and we had to change our plans for after landing, thus missing an expected event. In the return direction, the first leg that was delayed; we had a long enough layover that we were not hurried to make our connection, but others were not so lucky. Comment about this survey process: in the multiple choice answers, there is no option for "Not Applicable"; as we had no food on board, we can't properly answer that question.

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

Information on your arrival and departure airports