$558 Cheap KLM flights Philadelphia (PHL) to Billund (BLL)

View $558 flight on Tue, May 5, 2026Opens in a new window
  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$558 Cheap KLM flights Philadelphia (PHL) to Billund (BLL)

Prices were available within the past 7 days and start at $558 for one-way flights and $968 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KLM
Tue, May 5 - Sun, May 17
PHL
Philadelphia
BLL
Billund
$968 Roundtrip, found 6 days ago
$968
Roundtrip
found 6 days ago
Select KLM flight, departing Tue, May 5 from Philadelphia to Billund, returning Sun, May 17, priced at $968 found 6 days ago

Travel information

Origin airport
Philadelphia Intl.
Destination airport
Billund
Distance
3806 mi
*Available to One Key members.