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.

REPUBLIC · FLIGHT YX 4377 SCHEDULED · TYPICAL SCHEDULE

Tuesday, September 29 Today

YX 4377 · BOS → LGA

departs 8:06 AM ET · arrives 9:32 AM ET

Forecast issued Tue 7:00 PM ET · 11h after departure

YX 4377 isn’t flying BOS → LGA today

This listing came from a typical schedule. According to the FAA, YX 4377 flies these legs today:

MCI → ORD · 5:33 AM · scheduled
MCI → ORD · 5:33 AM · landed