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6,119 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 72%.

Best time to leave 5–6 am 95% arrive on time from IAH
Best single flight UA 1617 IAH 08:05 → ORD 11:01 · 92% on time Avoid UA 2135 IAH 17:09 → ORD 20:05 · 68% 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
21
22
IAH
95
93
93
94
90
79
76
81
71
78
88
73
75
68
73
66
79
75
% 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.
United 4,048 79% 0.7% 71 min
American (incl. Envoy, PSA, SkyWest, Republic) 1,537 71% 3.0% 102 min
Frontier 262 66% 4.2% 138 min
Spirit 272 64% 4.8% 72 min

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 1617 IAH 08:05 ORD 11:01 92%
UA 2182 IAH 07:24 ORD 10:20 89%
UA 2616 IAH 06:10 ORD 09:05 88%
UA 2124 IAH 09:35 ORD 12:29 86%
UA 2417 IAH 11:55 ORD 14:51 76%
· · ·
UA 1752 IAH 22:08 ORD 00:45 71%
UA 2197 IAH 18:44 ORD 21:40 69%
UA 2135 IAH 17:09 ORD 20:05 68%

All 19 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.
UA 1044 IAH 05:04 ORD 07:59 2h 55m 142 97% 0.0% 35 min
UA 2616 IAH 06:10 ORD 09:05 2h 55m 363 88% 1.1% 44 min
AA 3106 IAH 06:13 ORD 09:07 2h 54m 149 89% 5.4% 108 min
UA 2182 IAH 07:24 ORD 10:20 2h 56m 340 89% 0.0% 68 min
UA 1617 IAH 08:05 ORD 11:01 2h 56m 291 92% 0.7% 54 min
UA 2124 IAH 09:35 ORD 12:29 2h 54m 349 86% 0.3% 68 min
AA 1909 IAH 11:26 ORD 14:17 2h 51m 72 64% 2.8% 126 min
UA 2417 IAH 11:55 ORD 14:51 2h 56m 291 76% 0.7% 65 min
UA 2827 IAH 11:55 ORD 14:51 2h 56m 72 67% 1.4% 90 min
AA 1915 IAH 13:36 ORD 16:35 2h 59m 72 52% 0.0% 90 min
UA 2458 IAH 13:41 ORD 16:39 2h 58m 72 68% 0.0% 75 min
UA 699 IAH 14:30 ORD 17:22 2h 52m 37 68% 0.0% 103 min
AA 4426flown by Republic IAH 17:02 ORD 20:24 3h 22m 62 77% 8.1% 84 min
UA 2135 IAH 17:09 ORD 20:05 2h 56m 158 68% 0.6% 73 min
AA 1913 IAH 18:42 ORD 21:54 3h 13m 72 47% 4.2% 137 min
UA 2197 IAH 18:44 ORD 21:40 2h 56m 279 69% 0.4% 80 min
UA 787 IAH 20:25 ORD 23:15 2h 50m 363 72% 0.8% 85 min
F9 3136 IAH 21:58 ORD 00:49 2h 50m 141 67% 5.0% 106 min
UA 1752 IAH 22:08 ORD 00:45 2h 37m 239 71% 0.4% 99 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.
United IAH ORD 2h 48m 79% 0.7% 4,048 Flying now
American IAH ORD 2h 48m 71% 3.0% 1,537 Flying now
Frontier IAH ORD 2h 50m 66% 4.2% 262 Flying now
Spirit IAH ORD 2h 40m 64% 4.8% 272 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