AirHint found the following cheapest return flights from Belfast (BFS) to Oslo (OSL) in July 2025 (see full year).

Return flights

14 Jul - 21 Jul	Ryanair
15 Jul - 31 Jul	Ryanair
16 Jul - 10 Aug	easyJet
29 Jul - 31 Jul	Ryanair
16 Jul - 11 Aug	easyJet
16 Jul - 09 Aug	easyJet
16 Jul - 08 Aug	easyJet
13 Jul - 20 Jul	Ryanair
14 Jul - 16 Jul	Ryanair
12 Jul - 20 Jul	Ryanair
14 Jul - 17 Jul	Ryanair
16 Jul - 07 Aug	easyJet
15 Jul - 17 Jul	Ryanair
14 Jul - 18 Jul	Ryanair
08 Jul - 15 Jul	easyJet
28 Jul - 06 Aug	Ryanair

Also check the deals for one-way flights from Belfast to Oslo in July.

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 Belfast to Oslo in July from 188€

Return flights