AirHint found the following cheapest return flights from London (LCY) to Oslo (OSL) in August 2026 (see full year).

Return flights

13 Aug - 17 Aug	KLM
14 Aug - 17 Aug	KLM
29 Aug - 03 Sep	KLM
07 Aug - 14 Aug	KLM
12 Aug - 17 Aug	KLM
28 Aug - 30 Aug	SWISS
15 Aug - 19 Aug	KLM
27 Aug - 06 Sep	KLM
01 Aug - 08 Aug	KLM
25 Aug - 29 Aug	KLM
24 Aug - 31 Aug	KLM
22 Aug - 27 Aug	KLM

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

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 return flights from London to Oslo in August from 205€

Return flights