Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
Tomorrow
YX 4509 · LGA → STL
departs 12:58 PM ET · arrives 2:50 PM CT
YX 4509 isn’t flying LGA → STL on Sun, Oct 4
This listing came from a typical schedule. According to the FAA, YX 4509 flies these legs that day:
- EYW → PHL · 2:53 PM · scheduled