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

Return flights

23 May - 31 May	Norwegian	direct
23 May - 30 May	Norwegian	direct
21 May - 25 May	Norwegian	direct
15 May - 18 May	Norwegian	direct
23 May - 25 May	Norwegian	direct
22 May - 24 May	Norwegian	direct
15 May - 17 May	Norwegian	direct
09 May - 12 May	Norwegian	direct
22 May - 25 May	Norwegian	direct
15 May - 24 May	Norwegian	direct
30 May - 08 Jun	Norwegian

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 100€

Return flights