Cheapest return flights from Washington (IAD) to Oslo (OSL), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
10 Sep 17 Sep Icelandair
18 Sep 25 Sep Icelandair
02 Sep 09 Sep Scandinavian Airlines
17 Sep 21 Sep Icelandair
07 Sep 14 Sep Scandinavian Airlines
09 Sep 16 Sep Scandinavian Airlines
06 Sep 13 Sep Scandinavian Airlines
14 Sep 21 Sep Scandinavian Airlines
21 Sep 28 Sep Scandinavian Airlines
23 Sep 30 Sep Scandinavian Airlines
24 Sep 01 Oct Scandinavian Airlines
30 Sep 07 Oct Scandinavian Airlines
25 Sep 02 Oct Scandinavian Airlines
26 Sep 03 Oct Scandinavian Airlines
27 Sep 04 Oct Air France
28 Sep 05 Oct KLM
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deals for one-way flights from Washington to Oslo in September.

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Updated Jul 12, 2026.

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