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 → EZE
Oslo to Buenos Aires
Best fare, round trip
$861
Too little price history on this route to compare — the fare is shown as found.
Found
- Depart
- Sat 6 Feb
- Return
- Tue 23 Feb
- Stay
- 17 nights
- Flight
- 2 stops · 21.5h
- Airline
Finnair
Cached fare — the booking search re-prices live before you pay.
ArgentinaBuenos AiresEuropean bones, Latin hours — and a peso that has made this one of the cheapest big cities to spend a week in.Best windowOct–Dec · Mar–MayAirportsEzeiza (EZE) · Aeroparque (AEP)Every route into Buenos AiresFare seasonality
When this route gets cheap.
The cheapest itinerary we are tracking makes 2 stops and takes about 21.5 hours outbound, on a 17-night trip — ticketed under Finnair, which on a connecting fare need not operate every leg. At $861 for 12,275 km each way, that works out to about $35 per 1,000 km flown. That is below the $42 per 1,000 km typical of ultra-long-haul fares here. Across the 26 departure cities we track at a similar distance from Buenos Aires, this fare ranks 2nd — 37% above the $630 from Madrid. That puts it in the cheaper half of the 15 routes of similar length we watch out of Oslo, where the middle fare is $905. 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 Buenos Aires: Oct–Dec · Mar–May.
The one day we hold a cached fare for
Press a date to compare its fares
The median cached fare across this calendar is 16% higher than when tracking began on 8 Aug — $1,566 then versus $1,822 now, across 4 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 $861, on 6 Feb '27.
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 08 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) ↔ Ezeiza (EZE) · Aeroparque (AEP)
- Flight time
- ≈21.5 hours outbound
- Distance
- ≈12,275 km each way
- Airlines on the board
- Finnair
- Itineraries
- Connections on current fares
- Best months to visit
- Oct–Dec · Mar–May
Good to know
OSL → EZE, answered.
How far in advance should I book OSL → Buenos Aires?
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 Buenos Aires?
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 9 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 Buenos Aires?
Lock the flight first — then compare stays for 6–23 Feb '27 · 17 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next OSL → EZE drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
Related routes on the board.
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$550
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usually $910
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