Cheapest return flights from Washington to Oslo in May from $636

AirHint found the following cheapest return flights from Washington (IAD) to Oslo (OSL) in May 2026 (see full year).

Return flights

11 May - 18 May Scandinavian Airlines
13 May - 20 May Scandinavian Airlines
05 May - 12 May Scandinavian Airlines
07 May - 14 May Scandinavian Airlines
14 May - 21 May Scandinavian Airlines
20 May - 27 May Scandinavian Airlines
25 May - 01 Jun Icelandair
30 May - 06 Jun Icelandair
02 May - 09 May Scandinavian Airlines
01 May - 08 May Scandinavian Airlines
12 May - 19 May Scandinavian Airlines
10 May - 17 May Scandinavian Airlines
31 May - 07 Jun Scandinavian Airlines
26 May - 02 Jun Scandinavian Airlines

Also check the deals for one-way flights from Washington to Oslo in May.

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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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