Portland (PDX) to Billund (BLL) flight deal in economy from $556

Sunday, December 20th, 2026

9 round-trip options

Returning
Fri, Dec 25, 20265 Day Trip
$1,473 USD
Returning
Sun, Dec 27, 20267 Day Trip
$1,500 USD
Returning
Mon, Dec 28, 20268 Day Trip
$1,345 USD
Returning
Tue, Dec 29, 20269 Day Trip
$1,729 USD
Returning
Wed, Dec 30, 202610 Day Trip
$1,500 USD
Returning
Thu, Dec 31, 202611 Day Trip
$2,004 USD
Returning
Fri, Jan 1, 202712 Day Trip
$1,576 USD
Returning
Sat, Jan 2, 202713 Day Trip
$2,208 USD
Returning
Sun, Jan 3, 202714 Day Trip
$1,576 USD