Cheapest return flights from Washington to Oslo in May from $414

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

Return flights

07 May - 14 May Icelandair
20 May - 25 May Icelandair
03 May - 10 May Icelandair
05 May - 12 May Icelandair
06 May - 13 May Icelandair
01 May - 08 May Icelandair
02 May - 09 May Icelandair
10 May - 17 May Icelandair
04 May - 11 May Icelandair
15 May - 22 May Icelandair
25 May - 01 Jun Scandinavian Airlines
31 May - 18 Jun Lufthansa
23 May - 06 Jun Lufthansa
22 May - 06 Jun Lufthansa
27 May - 03 Jun Scandinavian Airlines
24 May - 06 Jun Scandinavian Airlines
28 May - 04 Jun Icelandair
26 May - 02 Jun Icelandair
31 May - 07 Jun Icelandair
29 May - 05 Jun Icelandair

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

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