Cheapest return flights from Washington to Oslo in March from $397

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

Return flights

14 Mar - 22 Mar Icelandair
05 Mar - 12 Mar Icelandair
25 Mar - 01 Apr Icelandair
20 Mar - 27 Mar Icelandair
15 Mar - 22 Mar Icelandair
30 Mar - 06 Apr Scandinavian Airlines

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

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