Cheap flights from London to San Jose, Costa Rica from $1,908 LCY, LGW, LHR, LTN, SEN, STN → SJO

Found recently, and the cheapest we hold

What have prices looked like?

Over 43 days, 24 Sept to 12 Nov, the cheapest return we saw each day was $648 to $1,838.

At $1,908, the cheapest return found recently is above that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

Yes. Among 14-night return fares leaving within 3 days of 1 Jan 2027, 3 Jan 2027 – 17 Jan 2027 costs $1,560: $348 less than the cheapest found recently.

Helvetic Airways · London City Airport (LCY) → Juan Santamaria International Airport (SJO) · out 1 stop, back 1 stop · found 3 days ago

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Every date we hold

187 fares on 17 departure dates

Which month looks cheapest?

February 2027 is the cheapest month — from $648.

Return

Fares 90 to 179 days before departure were typically 39% lower than 7 to 13 days before departure.

From the cheapest return each day between 24 Sept and 12 Nov (43 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from London to San Jose?

The cheapest return found recently is $1,908 with Wizz Air UK, 1 Jan 2027 to 15 Jan 2027, found today. The cheapest return we hold, of any age, is $648 with Ryanair, 18 Feb 2027 to 28 Feb 2027, found 5 days ago. The cheapest return fare on each of 17 departure dates is usually $955 to $1,426.

What is the cheapest month to fly from London to San Jose?

February 2027 is the cheapest month for a return, from $648, 18 Feb 2027 to 28 Feb 2027, found 5 days ago.

How far ahead should I book a flight from London to San Jose?

In 43 days of prices between 24 Sept and 12 Nov, return fares 90 to 179 days before departure were typically 39% lower than 7 to 13 days before departure.

Is there a direct flight from London to San Jose?

Yes, the cheapest nonstop return found recently is $1,214 with British Airways, 16 May 2027 to 29 May 2027, found 3 days ago.

Which airlines have the cheapest flights from London to San Jose?

Between 25 Nov and 3 Jul 2027, avianca airlines has the cheapest return on 5 of the 17 departure dates we hold, KLM on 5 and SWISS on 1.