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

Return flights

05 May - 09 May	KLM
08 May - 12 May	KLM
06 May - 11 May	KLM
07 May - 12 May	KLM
08 May - 11 May	KLM
12 May - 16 May	KLM
11 May - 16 May	KLM
05 May - 08 May	KLM
06 May - 09 May	KLM
27 May - 02 Jun	KLM
20 May - 24 May	KLM
29 May - 03 Jun	KLM
28 May - 03 Jun	KLM
29 May - 06 Jun	KLM
29 May - 07 Jun	KLM
28 May - 01 Jun	KLM
29 May - 01 Jun	KLM
30 May - 01 Jun	KLM
24 May - 02 Jun	Lufthansa
23 May - 01 Jun	Luxair

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

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 May from 186€

Return flights