Find Cheap Flights from Ireland to Costa Rica

1 adult
1 adult, Economy

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Booking Insights

KAYAK's insights & trends for flights to Costa Rica

Get data-powered insights and trends for flights 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 Ireland to Costa Rica?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ireland 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 Ireland to Costa Rica is September, when tickets cost £583 (return) on average. On the other hand, the most expensive months are December and October, when the average cost of round-trip tickets is £887 and £714 respectively.

How far in advance should I book a flight from Ireland 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 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 Ireland to Costa Rica, you should book around 3 weeks before departure, which saves you about 27% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

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Good to know - Cheap tickets from Ireland to Costa Rica

Low seasonOctober
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly (38% more expensive on average)

FAQs for booking flights from Ireland to Costa Rica

  • 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.

  • What is the cheapest day to fly to Costa Rica?

    Based on KAYAK data, the cheapest day to fly to Costa Rica is Friday when return tickets can be as cheap as £624. On the other hand, the most expensive day to fly is Sunday, when return prices are £955 on average.

  • What is the cheapest time of day to fly to Costa Rica?

    The cheapest time of day to fly to Costa Rica is generally at night, when retur flights cost £913 on average. The most expensive time of day to fly to Costa Rica is generally in the morning, which is peak travel time and where the average cost of a ticket is £1,053.

Reviews of the top airline flying from Ireland 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.
7.4
United AirlinesOverall score based on 8929 reviews
7.7Boarding
6.6Food
7.1Entertainment
7.3Comfort
8.1Crew
Airline reviews

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

10.0 ExcellentCraig, Aug 2025SLC - EWR
Read more United Airlines reviews

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

My flight was delayed about 1 1/2 hours in Chicago, but other then that it was a good flight.

Staff members were not helpful they ignored all calls for an attendant.

1.It will be better if sandwich is warm. 2.The food is too salty. 3.Breakfast needs some vegetables or fruits.

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

The boarding of took of late.The presentation of the food was horrable as was the tast of the food was cold and tastless.

get E+, a must for 5 hours flight if you are tall

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

I love United was disappointed we had a two hour delay, however the Pilot did say safety first.

Compared with other carriers business class for an overnight was not worth the extra expense.

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.
First Class flights to Costa Rica
Business Class flights to Costa Rica
Prem Econ Class flights to Costa Rica
Economy class flights to Costa Rica

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