Showing Delta only (incl. its regional partners)All airlines ×

1,342 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 7 in 10.

Best time to leave 7–8 am 90% arrive on time from STL

Best single flight DL 4981 STL 06:05 → LGA 09:38 · 90% on time Avoid DL 4922 STL 12:35 → LGA 16:09 · 74% on time

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

STL

% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55

Pick an hour to see this route’s flights leaving then.

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.


DL 4981flown by Endeavor	STL 06:05	LGA 09:38	90%
DL 4922flown by Endeavor	STL 12:35	LGA 16:09	74%

All 6 Delta flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.


DL 4981flown by Endeavor	STL 06:05	LGA 09:38	2h 33m	235	90%	2.1%	167 min
DL 4939flown by Endeavor	STL 07:05	LGA 10:35	2h 30m	117	86%	5.1%	76 min
DL 4839flown by Endeavor	STL 09:22	LGA 12:56	2h 34m	48	77%	10.4%	47 min
DL 4922flown by Endeavor	STL 12:35	LGA 16:09	2h 38m	168	74%	5.4%	86 min
DL 5610flown by Republic	STL 13:05	LGA 16:38	2h 33m	32	71%	3.1%	69 min
DL 4935flown by Endeavor	STL 17:22	LGA 21:00	2h 38m	48	79%	18.8%	83 min

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.


Delta	STL	LGA	2h 29m	78%	5.0%	1,342	Flying now

Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON