Cheapest return flights from Oslo to Seattle in May from 738€

AirHint found the following cheapest return flights from Oslo (OSL) to Seattle (SEA) in May 2026 (see full year).

Return flights

14 May - 16 May Icelandair

Also check the deals for one-way flights from Oslo to Seattle in May.

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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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