Route brief · LON → SJO
London → San José
$965
round-trip · too little price history on this route to compare
Sep 10 – Sep 17 · 7 nights
American2 stops
Cached fare — the booking search re-prices live before you pay.
Destination briefSJOSan JoséNobody comes for the capital — they come for two coasts, volcanoes and cloud forest, all within four hours.Best windowDec–AprAirportsJuan Santamaría (SJO)All routes into San JoséWhen this route gets cheap.
Best time to be in San José: Dec–Apr. Fare history for this route is still thin, so we make no seasonal call yet.
The cheapest itinerary we are tracking makes 2 stops and takes about 14 hours outbound, on a 7-night trip — ticketed under American, which on a connecting fare need not operate every leg. At $965 for 8,728 km each way, that works out to about $55 per 1,000 km flown. That is above the $44 typical of long-haul fares here. Across the 18 departure cities we track at a similar distance from San José, this fare ranks 13th — 53% above the $631 from Madrid. For context, the middle fare among the 39 routes of similar length we watch out of London is $642. We have 3 months of cached prices for this route so far — not enough to call a fare cheap or expensive, so we publish the price without a percentage.
The one day we hold a cached fare for
Tap a date → live search
The median cached fare across this calendar is 15% higher than when tracking began on Aug 8 — $878 then versus $1,012 now, across 5 recorded snapshots. This is a calendar-level trend, so an individual deal above can be lower. The lowest single day we have seen here is $836, on Sep 15.
These are the only days we have a cached price for on this route so far — not the only days it flies. The search above covers any date.
Route facts
- Airports
- Heathrow (LHR) · Gatwick (LGW) · Stansted (STN) · Luton (LTN) ↔ Juan Santamaría (SJO)
- Flight time
- ~14 hours outbound
- Distance
- ~8,728 km each way
- Airlines on the board
- American
- Itineraries
- Connections on current fares
- Best months to visit
- Dec–Apr
LON → SJO, answered.
How far in advance should I book LON → San José?
We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. See /guides/what-moves-a-flight-price/ for the levers we can measure.
Are there nonstop flights from London to San José?
The current cheapest fares involve a connection, ticketed under American. Nonstop options exist on many dates at higher prices — check the live search for your exact dates.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on September 1). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.
Next step
Sleeping in San José?
Lock the flight first — then compare stays for Sep 10 – Sep 17 · 7 nights.
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Missed it?
Cached fares expire. This route has a feed of its own — follow it and the next LON → SJO drop reaches you as soon as we find it.
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