Cheapest return flights from Seattle (SEA) to Oslo (OSL), April

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
30 Apr 18 May Lufthansa
27 Apr 04 May Finnair
30 Apr 07 May Finnair
16 Apr 23 Apr Finnair
18 Apr 25 Apr Finnair
23 Apr 30 Apr Finnair
06 Apr 13 Apr Finnair
09 Apr 16 Apr Finnair
11 Apr 18 Apr Finnair
13 Apr 20 Apr Finnair
25 Apr 02 May Finnair
28 Apr 05 May Scandinavian Airlines
14 Apr 21 Apr Scandinavian Airlines
21 Apr 28 Apr Scandinavian Airlines
07 Apr 14 Apr Scandinavian Airlines
29 Apr 06 May Scandinavian Airlines
26 Apr 03 May Scandinavian Airlines
24 Apr 01 May Scandinavian Airlines
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deals for one-way flights from Seattle to Oslo in April.

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Updated Aug 26, 2026.

About these fares

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