Find Cheap Flights from Ireland to San José

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San José

 
These are the airlines KAYAK users have selected most often from within our search results for flights to San José, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to San José, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Ireland to San José

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Ireland to San José 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 Ireland to San José

Multiple Airlines Logo
LHR-SJO
5407 mimulti-stop
Multiple Airlines Logo
SJO-LHR
5407 mimulti-stop
Multiple Airlines
Find Deal
Multiple Airlines Logo
LGW-SJO
5420 mimulti-stop
Multiple Airlines Logo
SJO-LGW
5420 mimulti-stop
Multiple Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for flights to San José

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

What is the cheapest month to fly to San José?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to San José, 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 to San José is June, where tickets cost £593 on average for return flights. On the other hand, the most expensive months are December and October, where the average cost of tickets from Ireland is £968 and £721 respectively. For one-way flights, the best month to travel is June with an average price of £593.

How far in advance should I book a flight to San José?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to San José, 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, you should book around 3 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

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Good to know - Cheap tickets from Ireland to San José

Low seasonOctober
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly (45% more expensive on average)

FAQs - booking San José flights

  • How far is San José Juan Santamaria Intl Airport from central San José?

    San José Juan Santamaria Intl Airport is 9 miles from the centre of San José.

  • What is the name of San José’s airport?

    When flying to San José, you'll arrive at San José Juan Santamaria Intl Airport (SJO). The airport is also known as Juan Santamaria, Juan Santamaria Intl, Juan Santamaria Intl Airport, or San Jose Juan Santamaria.

  • What is the cheapest day to fly to San José?

    Based on KAYAK data, the cheapest day to fly to San José is Thursday where round-trip tickets can be as cheap as £694. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are £964 on average.

  • How does KAYAK find such low prices on flights to San José?

    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 to San José.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to San José?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San José is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to San José?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San José 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 to San José?

    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 to San José up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to San José?

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

Top tips for finding cheap flights to San José

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest San José flight deals.

Reviews of the top airline flying from Ireland to San José

 
See real verified KAYAK customer reviews for airlines flying to San José. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to San José. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to San José? 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 8934 reviews
6.6Food
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
Airline reviews

There was no food available for this red eye... one little waffle cookie for a 6+ hour flight... thank God I was able to sleep some

8.0 ExcellentBill, Aug 2025ANC - EWR
Read more United Airlines reviews

There was no food available for this red eye... one little waffle cookie for a 6+ hour flight... thank God I was able to sleep some

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

Boarding experience was smooth. Flight attendants were friendly and helpful. Entertainment system on the Houston-Edmonton flight did not function for passengers on the left side of the aisle. On the bird's eye flight from Quito to Houston, they should not serve a meal. No one needs to eat after midnight and it is disturbing for those passengers trying to sleep.

Smooth flight, especially take off and landing, and great crew on board. Really loved the stroopwaffles!

Delay and keep changing gates. I have to run around from B to C then to E.

Not really their fault, but a 4.5 hour delay is pretty brutal

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

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

Travelling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Jacó
Alajuela
Heredia
Esterillos Este
Santa Elena
San Gerardo de Dota

Everything you need to know for your flight to San José

Information on the airport you'll fly into in San José

San José (SJO)

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