Cheapest return flights from London to Oslo in September from $41

AirHint found the following cheapest return flights from London (LON) to Oslo (OSL) in September 2025 (see full year).

Return flights

22 Sep - 10 Oct Ryanair direct
28 Sep - 10 Oct Ryanair direct
22 Sep - 23 Sep Ryanair direct
14 Sep - 23 Sep Ryanair direct
07 Sep - 23 Sep Ryanair direct
22 Sep - 07 Oct Ryanair direct
24 Sep - 10 Oct Ryanair direct
28 Sep - 07 Oct Ryanair direct
17 Sep - 23 Sep Ryanair direct
14 Sep - 22 Sep Ryanair direct
14 Sep - 15 Sep Ryanair direct
14 Sep - 20 Sep Ryanair direct
14 Sep - 21 Sep Ryanair direct
07 Sep - 22 Sep Ryanair direct
07 Sep - 15 Sep Ryanair direct
17 Sep - 07 Oct Ryanair direct
22 Sep - 11 Oct Ryanair direct
22 Sep - 01 Oct Ryanair direct
22 Sep - 08 Oct Ryanair direct
22 Sep - 12 Oct Ryanair direct

Also check the deals for one-way flights from London to Oslo in September.

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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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