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Showing Delta only (incl. its regional partners)All airlines ×
4,101 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 6–7 am 88% arrive on time from LGA
Best airport pair JFK → IAD 78% on time, fewest cancelled (4.5%), 713 flights
Best single flight DL 5770 LGA 06:05 → DCA 07:23 · 89% on time Avoid DL 5724 LGA 19:20 → DCA 20:59 · 50% 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
JFK
90
85
74
69
71
71
56
70
LGA
92
93
90
87
80
74
69
61
% 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 5770flown by Republic LGA 06:05 DCA 07:23 89%
DL 5742flown by Republic LGA 08:50 DCA 10:15 83%
DL 5749flown by Republic LGA 11:20 DCA 12:46 78%
DL 5717flown by Republic LGA 17:20 DCA 18:58 62%
DL 5709flown by Republic LGA 14:45 DCA 16:20 61%
· · ·
DL 5699flown by Republic JFK 15:22 DCA 16:59 60%
DL 5724flown by Republic LGA 19:20 DCA 20:59 50%

All 14 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 5770flown by Republic LGA 06:05 DCA 07:23 1h 18m 280 89% 3.2% 76 min
DL 5750flown by Republic JFK 08:35 DCA 10:02 1h 27m 86 92% 3.5% 69 min
DL 5742flown by Republic LGA 08:50 DCA 10:15 1h 25m 222 83% 3.2% 59 min
DL 5835flown by Republic JFK 10:16 IAD 11:48 1h 32m 55 87% 1.8% 129 min
DL 5135flown by Endeavor JFK 10:50 IAD 12:18 1h 28m 31 87% 3.2% 62 min
DL 5749flown by Republic LGA 11:20 DCA 12:46 1h 26m 347 78% 4.0% 59 min
DL 5709flown by Republic LGA 14:45 DCA 16:20 1h 35m 348 61% 5.5% 54 min
DL 5699flown by Republic JFK 15:22 DCA 16:59 1h 37m 348 60% 6.0% 74 min
DL 5076flown by Endeavor JFK 16:40 IAD 18:32 1h 51m 55 62% 12.7% 92 min
DL 5792flown by Republic JFK 17:11 IAD 18:53 1h 42m 31 80% 3.2% 58 min
DL 5717flown by Republic LGA 17:20 DCA 18:58 1h 38m 348 62% 9.5% 56 min
DL 5724flown by Republic LGA 19:20 DCA 20:59 1h 40m 184 50% 10.9% 66 min
DL 1825 LGA 21:25 DCA 22:55 1h 30m 48 47% 6.2% 83 min
DL 5743flown by Republic JFK 21:30 DCA 22:59 1h 39m 86 68% 17.4% 72 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 JFK IAD 1h 32m 78% 4.5% 713 Flying now
Delta LGA DCA 1h 27m 70% 5.6% 2,312 Flying now
Delta JFK DCA 1h 33m 70% 6.3% 1,076 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