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

Return flights

08 Jul - 01 Aug	Lufthansa
10 Jul - 01 Aug	TAP
03 Jul - 12 Jul	TAP

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

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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Cheapest return flights from Washington to Oslo in July from $725

Return flights