Cheapest return flights from Washington to Oslo in March from $391

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

Return flights

03 Mar - 14 Mar Icelandair
18 Mar - 25 Mar Scandinavian Airlines
04 Mar - 11 Mar Scandinavian Airlines
20 Mar - 29 Mar Icelandair
16 Mar - 23 Mar Icelandair
02 Mar - 09 Mar Icelandair
11 Mar - 18 Mar Icelandair
19 Mar - 26 Mar Scandinavian Airlines
12 Mar - 20 Mar SWISS
25 Mar - 30 Mar United
25 Mar - 01 Apr Scandinavian Airlines
30 Mar - 06 Apr Scandinavian Airlines
26 Mar - 02 Apr Scandinavian Airlines
29 Mar - 05 Apr Scandinavian Airlines
28 Mar - 04 Apr Scandinavian Airlines
31 Mar - 07 Apr Scandinavian Airlines

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

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