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

Return flights

07 Mar - 11 Mar	Norwegian	direct
30 Mar - 11 Apr	Wizz Air
23 Mar - 25 Mar	Air Serbia	direct
16 Mar - 23 Mar	Air Serbia	direct
25 Mar - 01 Apr	Norwegian	direct
25 Mar - 11 Apr	Norwegian	direct
25 Mar - 13 Apr	Norwegian	direct
21 Mar - 01 Apr	Norwegian	direct
07 Mar - 18 Mar	Norwegian	direct
30 Mar - 12 Apr	Lufthansa
29 Mar - 12 Apr	Ryanair
29 Mar - 06 Apr	Ryanair
29 Mar - 04 Apr	Ryanair
29 Mar - 08 Apr	Ryanair

Also check the deals for one-way flights from Oslo to Belgrade 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 Oslo to Belgrade in March from $156

Return flights