AirHint found the following cheapest one-way flights from London (LHR) to Oslo (OSL) in October 2025 (see full year).

One-Way flights

31 Oct	British Airways	direct
08 Oct	British Airways	direct
30 Oct	British Airways	direct
29 Oct	British Airways	direct
16 Oct	British Airways	direct
14 Oct	British Airways	direct
07 Oct	British Airways	direct
09 Oct	British Airways	direct
17 Oct	British Airways	direct
02 Oct	British Airways	direct

Also check the deals for return flights from London to Oslo in October.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest one-way flights from London to Oslo in October from $77

One-Way flights