Route brief · OSL → EZE
Oslo → Buenos Aires
$801
round-trip · too little price history on this route to compare
Feb 11 '27 – Mar 8 '27 · 25 nights
Finnair2 stops
Cached fare — the booking search re-prices live before you pay.
Destination briefEZEBuenos 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)All routes into Buenos AiresWhen this route gets cheap.
Best time to be in Buenos Aires: Oct–Dec · Mar–May. 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 21.5 hours outbound, on a 25-night trip — ticketed under Finnair, which on a connecting fare need not operate every leg. At $801 for 12,275 km each way, that works out to about $33 per 1,000 km flown. That is below the $40 typical of ultra-long-haul fares here. Across the 25 departure cities we track at a similar distance from Buenos Aires, this fare ranks 2nd — 13% above the $712 from Los Angeles. That puts it in the cheaper half of the 14 routes of similar length we watch out of Oslo, where the middle fare is $952. 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.
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
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We do not publish a number for this, because we cannot measure it yet.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. See /guides/what-moves-a-flight-price/ for the levers we can measure.
Are there nonstop flights from Oslo to Buenos Aires?
The current cheapest fares involve a connection, ticketed under Finnair. 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 August 30). 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 Feb 11 '27 – Mar 8 '27 · 25 nights.
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Missed 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.
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