Oslo (OSL) to Washington (IAD) flight deal in economy from $427

Monday, December 14th, 2026

6 round-trip options

Returning
Sat, Dec 19, 20265 Day Trip
$1,304 USD
Returning
Mon, Dec 21, 20267 Day Trip
$1,090 USD
Returning
Wed, Dec 23, 20269 Day Trip
$869 USD
Returning
Thu, Dec 24, 202610 Day Trip
$767 USD
Returning
Sat, Dec 26, 202612 Day Trip
$653 USD
Returning
Mon, Dec 28, 202614 Day Trip
$629 USD