Oslo (OSL) to Washington (IAD) flight deal in economy from $427
OSLOslo Airport, Gardermoen
Oslo, Norway
IADWashington Dulles International Airport
Washington, United States
$755 USD
-43%$427 USD
Verified about 6 hours agoSeptember 2026
Mon
Tue
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Limited Availability
18% of dates checked are available within 10% of the lowest price
Sunday, September 13th, 2026
4 round-trip options
Returning
Sat, Sep 19, 2026•6 Day Trip
$2,013 USD
Returning
Thu, Sep 24, 2026•11 Day Trip
$3,688 USD
Returning
Fri, Sep 25, 2026•12 Day Trip
$3,688 USD
Returning
Sat, Sep 26, 2026•13 Day Trip
$3,688 USD