Find Cheap Flights from Dublin to Costa Rica – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Dublin to Costa Rica

Cheapest return prices found by our users on KAYAK in the last 72 hours
San José
San José2 stops£591
Liberia
Liberia2 stops£625
San José
San José2 stops£591
Liberia
Liberia2 stops£625
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 £594 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of return tickets is £776 and £768 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 34% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

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Good to know - Cheap tickets from Dublin to Costa Rica

Low season

February
Best time to beat the crowds (3% less expensive on average)
Most popular time to fly (9% more expensive on average)

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 airline 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
United AirlinesOverall score based on 10046 reviews
8.1Crew
7.7Boarding
7.3Comfort
7.1Entertainment
6.6Food
Airline reviews

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.

6.0 GoodWilliam Drew, Nov 2025
SFO - SJO
Read more United Airlines reviews

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.

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

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

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

flight delays, staff only communicating when pushed, food service lasting a grand total of 7 minutes, stuck in seat from 45mins into flight until landing

Was a good flight. On time. Was full and all went well

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.

The in-flight entertainment options were great. I always appreciate a seat back TV on a domestic flight. However, there were issues with a computer system that were discovered after we had boarded that caused repeated delays, and eventually we had to deplane. I liked that United texted me a $30 food voucher for the inconvenience, but it caused me to miss my dinner plans in West Hollywood that night. Once we were in the air, everything was fine though.

I liked being upgraded to first class. The flight was a redeye, so I did sleep most of it.

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

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

Information on your arrival and departure airports

Dublin (DUB)