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

Saturday, September 26th, 2026

5 round-trip options

Returning
Thu, Oct 1, 20265 Day Trip
$1,164 USD
Returning
Fri, Oct 2, 20266 Day Trip
$1,291 USD
Returning
Sun, Oct 4, 20268 Day Trip
$1,170 USD
Returning
Tue, Oct 6, 202610 Day Trip
$1,121 USD
Returning
Sat, Oct 10, 202614 Day Trip
$1,181 USD