Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

REPUBLIC · FLIGHT YX 4377 SCHEDULED · TYPICAL SCHEDULE

Thursday, October 1 Today

YX 4377 · LGA → BOS

departs 6:00 AM ET · arrives 7:20 AM ET

Forecast issued Thu 3:00 PM ET · 9h after departure

YX 4377 isn’t flying LGA → BOS today

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

MCI → ORD · 5:19 AM · scheduled