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4,667 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 93% depart on time. After 4 pm it’s 3 in 5.

Best time to leave 8–9 am 90% arrive on time from LGA
Best single flight UA 2200 LGA 12:29 → DEN 14:43 · 87% on time Avoid DL 710 LGA 18:59 → DEN 21:33 · 61% 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).

6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
LGA
90
94
90
56
84
72
83
78
65
83
63
41
67
28
55
64
% 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
Denver flights leaving LGA 8–9 am: 1Close ×
UA 513 LGA 08:00 DEN 10:13 4h 13m 10 100% 0.0% –

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
United 2,020 79% 2.1% 84 min
Delta 1,032 73% 4.3% 70 min
Southwest 1,494 63% 3.5% 63 min
Frontier 121 – 3.3% 109 min

Dimmed: fewer than 150 flights in the year, too few to rank.

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.
UA 2200 LGA 12:29 DEN 14:43 87%
DL 751 LGA 07:45 DEN 09:55 84%
UA 2046 LGA 18:29 DEN 21:02 71%
DL 716 LGA 13:55 DEN 16:19 71%
DL 710 LGA 18:59 DEN 21:33 61%
All 19 flights on this route →

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.
United LGA DEN 4h 34m 79% 2.1% 2,020 Flying now
Delta LGA DEN 4h 24m 73% 4.3% 1,032 Flying now
Southwest LGA DEN 4h 30m 63% 3.5% 1,494 Flying now
Frontier LGA DEN 4h 20m 70% 3.3% 121 Not 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