Athens (ATH) to Chicago (ORD) flight deal in economy from $725

Saturday, August 29th, 2026

3 round-trip options

Returning
Thu, Sep 3, 20265 Day Trip
$770 USD
Returning
Sun, Sep 6, 20268 Day Trip
$726 USD
Returning
Mon, Sep 7, 20269 Day Trip
$726 USD