
LAX to LASUnited States
Las Vegas
$38
usually $125
−70%
Most monthly lows $67–$247. Cheaper than every other month on record (6).
Display prices in
Flights · LAX → SJO
Best fare, round trip
$587
−4%
below its usual $610
you keep $23
Most of this route’s monthly lows fall between $609 and $626. The drop beats 3% of measured fares on the board, over 5 observed months.
Cached fare — the booking search re-prices live before you pay.
Costa RicaSan JoséNobody comes for the capital — they come for two coasts, volcanoes and cloud forest, all within four hours.Best windowDec–AprAirportsJuan Santamaría (SJO)Every route into San JoséFare seasonality
Fares bottom out in January around $587 and peak in November near $684, 17% dearer, across the 5 months we track. The cheapest itinerary we are tracking makes one stop and takes about 11 hours outbound, on a 8-night trip — ticketed under JetBlue, which on a connecting fare need not operate every leg. At $587 for 4,389 km each way, that works out to about $67 per 1,000 km flown. That is above the $43 per 1,000 km typical of medium-haul fares here. Across the 7 departure cities we track at a similar distance from San José, this fare ranks 6th — 2.4× the $249 we hold from New York. For context, the middle fare among the 11 routes of similar length we watch out of Los Angeles is $374. The best time to be in San José: Dec–Apr.
The 7 days we hold a cached fare for
Press a date to compare its fares
The median cached fare across this calendar is 26% higher than when tracking began on 8 Aug — $672 then versus $848 now, across 17 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 $278, on 23 Oct.
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.
Cheapest in Jan, around $587
4% below the $610 typical fare
Cheapest round-trip fare found each month, Los Angeles to San José, from cached prices.
Route facts
Good to know
Only slightly. The seasonal median is around $610 round-trip and this fare is 4% under it. We do not call a drop notable until 20%, so this is an ordinary price for the route rather than a reason to hurry.
Across 5 months of cached-fare history, Jan comes out cheapest on this route. The best months to actually be in San José are Dec–Apr — when those overlap, that's your window.
We do not publish a number for this, because we cannot measure it yet.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. What we can measure is which month is cheap: across 5 months of cached fares, Jan comes out lowest on this route. Our guide Why flight prices change covers what does move a fare.
The current cheapest fares involve a connection, ticketed under JetBlue. We hold no nonstop fare on this route right now, which does not mean none flies — search your exact dates to see what does.
No — these are cached fares found on real searches (this one on 17 October). 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 11–19 Jan '27 · 8 nights.
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