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9,834 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 64%.

Best time to leave 5–6 am 94% arrive on time from HOU, 93% arrive on time from IAH
Best airport pair IAH → EWR 75% on time, fewest cancelled (1.8%), 3,769 flights
Best single flight UA 1797 IAH 06:01 → EWR 10:36 · 93% on time Avoid UA 2608 IAH 14:49 → EWR 19:35 · 59% 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).

5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
IAH
91
93
89
90
84
81
75
76
73
67
64
65
67
65
53
75
HOU
93
93
91
90
94
61
65
70
31
26
32
55
36
% 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.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
Delta 1,614 78% 4.5% 97 min
United (incl. SkyWest, Mesa) 6,217 74% 1.9% 73 min
Spirit 501 69% 6.2% 74 min
Southwest HOU→LGA only 1,358 65% 2.6% 65 min
JetBlue IAH→JFK only 144 – 7.6% 138 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 1797 IAH 06:01 EWR 10:36 93%
UA 1886 IAH 07:20 EWR 11:59 88%
DL 1417 IAH 07:00 LGA 11:33 88%
DL 2140 IAH 10:53 LGA 15:32 82%
UA 2402 IAH 09:48 EWR 14:27 79%
· · ·
UA 700 IAH 16:47 EWR 21:29 64%
UA 334 IAH 16:15 LGA 20:59 61%
UA 2608 IAH 14:49 EWR 19:35 59%
All 34 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.
Delta IAH JFK 3h 48m 80% 4.1% 269 Flying now
Delta IAH LGA 3h 33m 78% 4.5% 1,345 Flying now
United IAH EWR 3h 35m 75% 1.5% 3,534 Flying now
United IAH LGA 3h 35m 73% 2.5% 2,683 Flying now
Southwest HOU LGA 3h 20m 65% 2.6% 1,358 Flying now
JetBlue IAH JFK 3h 49m 47% 7.6% 144 Flying now
Spirit IAH EWR 3h 33m 78% 6.0% 235 Not flying now
Spirit IAH LGA 3h 28m 62% 6.4% 266 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