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

Tuesday, December 15th, 2026

3 round-trip options

Returning
Thu, Dec 24, 20269 Day Trip
$974 USD
Returning
Sat, Dec 26, 202611 Day Trip
$1,154 USD
Returning
Sun, Dec 27, 202612 Day Trip
$1,177 USD