Flights from Helsinki to Oslo

The cheapest round-trip from Helsinki to Oslo is about 127 EUR, usually in August 2026; March 2027 is priciest, so booking the low month saves around 143 EUR (~53%). Typical fare ~128 EUR, from 331 priced fares. Flightmussy live data, updated 2026-06-13.

Cheap flights from Helsinki (HEL) to Oslo (OSL/TRF). Free, no signup, no ads, no tracking. Compare every airline across 12 months of fares on one heatmap — including low-cost carriers Google Flights often deprioritises.

Fare insights: Helsinki to Oslo

Cheapest round-trip seen: 127 EUR, usually around August 2026. Typical fare ~128 EUR. Across the year prices range roughly 127–270 EUR — about 53% cheaper in the low season than the peak (March 2027). Carriers on this route include Air Baltic, Norwegian, Finnair, Scandinavian Airlines.

Based on Flightmussy's live 12-month fare data; prices last updated 2026-06-13. Prices change constantly — search live for current fares.

Cheapest fare by month: Helsinki to Oslo

The lowest round-trip fare we found for each month over the coming year — low season versus peak at a glance. August 2026 is cheapest; March 2027 is priciest.

Jun 2026155 EUR
Jul 2026128 EUR
Aug 2026127 EUR
Sep 2026127 EUR
Oct 2026128 EUR
Nov 2026128 EUR
Dec 2026128 EUR
Jan 2027128 EUR
Feb 2027128 EUR
Mar 2027270 EUR
Apr 2027270 EUR
May 2027270 EUR

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Why search this route on Flightmussy

Frequently asked questions

What is the cheapest month to fly from Helsinki to Oslo?
The cheapest round-trip fares from Helsinki to Oslo start around 127 EUR and are typically lowest in August 2026; March 2027 is the most expensive. Fares swing about 53% across the year. (Flightmussy live data, updated 2026-06-13.)
How much does a flight from Helsinki to Oslo typically cost?
Typical round-trip is ~128 EUR; across the year fares run 127–270 EUR, cheapest 127 EUR in August 2026. Based on 331 priced fares, updated 2026-06-13.
How much can I save flying Helsinki to Oslo in the cheapest month?
Booking the August 2026 low instead of the March 2027 peak saves about 143 EUR (~53%) per round-trip. Updated 2026-06-13.
Which airlines fly from Helsinki to Oslo?
Carriers seen on Helsinki → Oslo in recent searches: Air Baltic, Norwegian, Finnair, Scandinavian Airlines. Flightmussy compares every carrier serving Helsinki → Oslo, including budget airlines like Ryanair, easyJet, Wizz Air and AirAsia that Google Flights often deprioritises.
Do I need to sign up to search flights from Helsinki to Oslo?
No. Flightmussy is free and requires no account, no email, and no credit card. Search, compare, and click through to book directly with the airline or booking partner.

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About Flightmussy

Flightmussy is a free, independent flight search for travellers anywhere in the world. No signup, no ads, no tracking — email is optional, only for route price alerts. Compare fares across every airline and see 12 months of prices at a glance, including the low-cost carriers Google Flights often buries. Book directly with the airline or a trusted partner — we never add a markup.

Flight price data & research

Flightmussy runs its own 12-month forward fare scans across thousands of routes worldwide and publishes the data openly. Read the cheapest month to fly almost anywhere → — a global study of when fares are lowest — or browse the cheapest destinations from a city:

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