Philadelphia (PHL) to Basel Mulhouse Freiburg (BSL) flight deal in economy from $667

Friday, December 11th, 2026

3 round-trip options

Returning
Sun, Dec 20, 20269 Day Trip
$835 USD
Returning
Tue, Dec 22, 202611 Day Trip
$755 USD
Returning
Wed, Dec 23, 202612 Day Trip
$770 USD