Cheapest return flights from Washington to Oslo in August from 420€

AirHint found the following cheapest return flights from Washington (IAD) to Oslo (OSL) in August 2025 (see full year).

Return flights

19 Aug - 26 Aug Lufthansa
20 Aug - 27 Aug Lufthansa
24 Aug - 31 Aug Lufthansa
26 Aug - 02 Sep Lufthansa
21 Aug - 28 Aug Lufthansa
23 Aug - 30 Aug Lufthansa
31 Aug - 07 Sep Lufthansa
18 Aug - 25 Aug Lufthansa
25 Aug - 01 Sep Lufthansa
30 Aug - 06 Sep Lufthansa
28 Aug - 31 Aug Frontier Airlines
17 Aug - 24 Aug Lufthansa
22 Aug - 29 Aug Lufthansa
28 Aug - 04 Sep Austrian Airlines

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

Skyscanner

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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