RareNonstop · 2h
OSL to WAWPoland
Warsaw
$51
usually $105
−51%
Most monthly lows $93–$150. Cheaper than every other month on record (4).
Flights · OSL → SJU
Oslo to San Juan
Best fare, round trip
$916
Too little price history on this route to compare — the fare is shown as found.
Found
- Depart
- Sun 3 Jan
- Return
- Tue 12 Jan
- Stay
- 9 nights
- Flight
- 2 stops · 15h
- Airline
Finnair
Cached fare — the booking search re-prices live before you pay.
Puerto RicoSan JuanFive centuries of old town on a Caribbean island that takes US dollars and needs no passport from the States.Best windowDec–AprAirportsLuis Muñoz Marín (SJU)Every route into San JuanFare seasonality
When this route gets cheap.
The cheapest itinerary we are tracking makes 2 stops and takes about 15 hours outbound, on a 9-night trip — ticketed under Finnair, which on a connecting fare need not operate every leg. At $916 for 7,509 km each way, that works out to about $61 per 1,000 km flown. That is above the $44 per 1,000 km typical of long-haul fares here. Across the 18 departure cities we track at a similar distance from San Juan, this fare ranks 7th — 2.6× the $348 we hold from San Francisco. For context, the middle fare among the 27 routes of similar length we watch out of Oslo is $873. We have 1 month 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. Fare history here is still too short to name a cheap season. The best time to be in San Juan: Dec–Apr.
The one day we hold a cached fare for
Press a date to compare its fares
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.
Cached fares · checked 17 Oct 2026
We are still collecting this route's months — 1 month of cached prices so far, too few to chart.
Route facts
- Airports
- Gardermoen (OSL) · Torp (TRF) ↔ Luis Muñoz Marín (SJU)
- Flight time
- ≈15 hours outbound
- Distance
- ≈7,509 km each way
- Airlines on the board
- Finnair
- Itineraries
- Connections on current fares
- Best months to visit
- Dec–Apr
Good to know
OSL → SJU, answered.
How far in advance should I book OSL → San Juan?
We do not publish a number for this, because we cannot measure it yet.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. Our guide Why flight prices change covers the levers we can measure.
Are there nonstop flights from Oslo to San Juan?
The current cheapest fares involve a connection, ticketed under Finnair. We hold no nonstop fare on this route right now, which does not mean none flies — search your exact dates to see what does.
Are these prices guaranteed?
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 Juan?
Lock the flight first — then compare stays for 3–12 Jan '27 · 9 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next OSL → SJU drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
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