Schedule: a typical summer Wednesday (the flights of Jul 29, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
YX 4376 · JFK → BOS
departs 8:10 AM ET · arrives 9:34 AM ET
YX 4376 isn’t flying JFK → BOS on Wed, Sep 30
This listing came from a typical schedule. According to the FAA, YX 4376 flies these legs that day: