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

Return flights

15 Jul - 22 Jul	transavia
07 Jul - 14 Jul	transavia
04 Jul - 20 Jul	transavia
17 Jul - 21 Jul	transavia
31 Jul - 12 Aug	transavia
24 Jul - 28 Jul	transavia
31 Jul - 06 Aug	transavia
04 Jul - 09 Jul	transavia
24 Jul - 27 Jul	British Airways
05 Jul - 09 Jul	transavia
19 Jul - 22 Jul	transavia

Also check the deals for one-way flights from Rotterdam 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 Rotterdam to Oslo in July from 317€

Return flights