AirHint found the following cheapest return flights from Oslo (OSL) to Miami (MIA) in August 2025 (see full year).

Return flights

29 Aug - 11 Sep	TAP
25 Aug - 04 Sep	TAP
19 Aug - 27 Aug	Norse Atlantic Airways
24 Aug - 08 Sep	British Airways
28 Aug - 07 Sep	British Airways
16 Aug - 25 Aug	British Airways
22 Aug - 04 Sep	Delta
19 Aug - 26 Aug	KLM
31 Aug - 07 Sep	Norwegian
21 Aug - 23 Aug	Norse Atlantic Airways
29 Aug - 07 Sep	Ryanair
05 Aug - 12 Aug	Norse Atlantic Airways
08 Aug - 17 Aug	Delta
11 Aug - 28 Aug	Ryanair
04 Aug - 10 Aug	Norwegian

Also check the deals for one-way flights from Oslo to Miami in August.

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 Miami in August from $452

Return flights