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
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Limited Availability
18% of dates checked are available within 10% of the lowest price
Tuesday, September 8th, 2026
7 round-trip options
Returning
Sun, Sep 13, 2026•5 Day Trip
$1,152 USD
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Mon, Sep 14, 2026•6 Day Trip
$1,152 USD
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Wed, Sep 16, 2026•8 Day Trip
$1,222 USD
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Thu, Sep 17, 2026•9 Day Trip
$1,395 USD
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Fri, Sep 18, 2026•10 Day Trip
$3,053 USD
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Sat, Sep 19, 2026•11 Day Trip
$1,496 USD
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Sun, Sep 20, 2026•12 Day Trip
$1,711 USD