Flights from London to Oslo

The cheapest round-trip from London to Oslo is about 43 EUR, usually in September 2026; April 2027 is priciest, so booking the low month saves around 90 EUR (~68%). Typical fare ~65 EUR, from 331 priced fares. Flightmussy live data, updated 2026-06-13.

Cheap flights from London (LHR/LGW/STN/LTN/LCY) 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: London to Oslo

Cheapest round-trip seen: 43 EUR, usually around September 2026. Typical fare ~65 EUR. Across the year prices range roughly 43–133 EUR — about 68% cheaper in the low season than the peak (April 2027).

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: London to Oslo

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

Jun 2026103 EUR
Jul 202670 EUR
Aug 202644 EUR
Sep 202643 EUR
Oct 202646 EUR
Nov 202648 EUR
Dec 202659 EUR
Jan 202765 EUR
Feb 202765 EUR
Mar 202765 EUR
Apr 2027133 EUR
May 2027133 EUR

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Frequently asked questions

What is the cheapest month to fly from London to Oslo?
The cheapest round-trip fares from London to Oslo start around 43 EUR and are typically lowest in September 2026; April 2027 is the most expensive. Fares swing about 68% across the year. (Flightmussy live data, updated 2026-06-13.)
How much does a flight from London to Oslo typically cost?
Typical round-trip is ~65 EUR; across the year fares run 43–133 EUR, cheapest 43 EUR in September 2026. Based on 331 priced fares, updated 2026-06-13.
How much can I save flying London to Oslo in the cheapest month?
Booking the September 2026 low instead of the April 2027 peak saves about 90 EUR (~68%) per round-trip. Updated 2026-06-13.
Which airlines fly from London to Oslo?
Flightmussy compares every carrier serving London → 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 London 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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