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

Return flights

13 Mar - 17 Mar	Lufthansa
06 Mar - 11 Mar	Lufthansa
30 Mar - 17 Apr	KLM
20 Mar - 25 Mar	Lufthansa
06 Mar - 09 Mar	KLM
31 Mar - 19 Apr	KLM
31 Mar - 07 Apr	KLM
06 Mar - 10 Mar	Lufthansa
19 Mar - 24 Mar	Lufthansa
19 Mar - 22 Mar	KLM
06 Mar - 08 Mar	KLM
03 Mar - 08 Mar	KLM
16 Mar - 16 Apr	KLM
03 Mar - 10 Mar	KLM
27 Mar - 01 Apr	Lufthansa
31 Mar - 18 Apr	KLM
29 Mar - 03 Apr	KLM
29 Mar - 06 Apr	KLM
29 Mar - 05 Apr	KLM
28 Mar - 14 Apr	KLM

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

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 March from $228

Return flights