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

Return flights

28 Sep - 11 Oct	TAP
21 Sep - 11 Oct	TAP
21 Sep - 04 Oct	TAP
20 Sep - 04 Oct	TAP
20 Sep - 02 Oct	TAP
20 Sep - 11 Oct	TAP
13 Sep - 22 Sep	British Airways
22 Sep - 20 Oct	British Airways
02 Sep - 09 Sep	British Airways
12 Sep - 22 Sep	KLM
20 Sep - 03 Oct	Air France
12 Sep - 21 Sep	SWISS
21 Sep - 05 Oct	SWISS
01 Sep - 08 Sep	Ryanair
28 Sep - 10 Oct	Ryanair
12 Sep - 12 Sep	Scandinavian Airlines

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

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 September from $451

Return flights