AirHint found the following cheapest return flights from Boston (BOS) to Oslo (OSL) in April 2026 (see full year).

Return flights

15 Apr - 22 Apr	Icelandair
05 Apr - 12 Apr	Icelandair
18 Apr - 25 Apr	Icelandair
19 Apr - 26 Apr	Icelandair
25 Apr - 02 May	Icelandair
18 Apr - 26 Apr	Icelandair
17 Apr - 25 Apr	Icelandair
17 Apr - 26 Apr	Icelandair

Also check the deals for one-way flights from Boston to Oslo in April.

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 Boston to Oslo in April from $417

Return flights