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 4378 SCHEDULED · TYPICAL SCHEDULE

Thursday, October 1 Today

YX 4378 · BUF → LGA

departs 6:00 PM ET · arrives 7:29 PM ET

Forecast issued Thu 7:00 AM ET · 11h before departure

YX 4378 isn’t flying BUF → LGA today

This listing came from a typical schedule. According to the FAA, YX 4378 flies these legs today:

LGA → CLE · 12:39 PM · scheduled