Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
DL 4939 · New York (LGA) → St Louis (STL)
Sold by Delta, flown by Endeavor. Still flying: 35 of the last 56 days (Mon–Fri).
Arrives on time89%within 15 minutes, of 276 flights
Cancelled2.9%of scheduled flights
An hour or more late6%of flights that operated
When late, on average70 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (St Louis is 1 h behind New York).
- Leaves LGA
- 06:30
- Arrives STL
- 08:08
- Flight time
- 2h 38m
- Days flown, last 8 weeks
- 35 of 56
Each square is a day, Sat Jun 6 to Fri Jul 31, two weeks per row (each column is the same weekday); filled = flew.
How late it arrives
Share of flights that operated arriving more than this late.
Horizontal: minutes late at arrival (0 to 3 hours). Vertical: share of flights later than that.
Its hour at LGA
All flights leaving New York (LGA) at 6–7 am, wherever they’re going: 92% left within 15 minutes and 4.2% were cancelled (10,436 flights in the year). Other Delta flights on this route →
Upcoming forecasts
This flight isn’t in our published forecasts for the next few days.