Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
YX 4377 · LGA → BOS
departs 6:00 AM ET · arrives 7:20 AM ET
YX 4377 isn’t flying LGA → BOS on Tue, Sep 29
This listing came from a typical schedule. According to the FAA, YX 4377 flies these legs that day: