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
Wed
Thu
Fri
Sat
Sun
Limited Availability
18% of dates checked are available within 10% of the lowest price
Tuesday, September 15th, 2026
2 round-trip options
Returning
Sun, Sep 20, 2026•5 Day Trip
$991 USD
Returning
Mon, Sep 21, 2026•6 Day Trip
$991 USD