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3,070 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 4 in 5.

Best time to leave 8–9 am 96% arrive on time from IAH
Best single flight UA 491 IAH 07:30 → MSY 08:46 · 92% on time Avoid UA 2140 IAH 18:32 → MSY 19:51 · 76% 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).

7
8
9
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IAH
93
96
88
89
83
72
84
74
72
75
84
85
% 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 (incl. SkyWest, Mesa) 2,920 84% 0.1% 60 min
Spirit 123 – 0.0% 64 min
Frontier 27 – 3.7% 195 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 491 IAH 07:30 MSY 08:46 92%
UA 2385 IAH 11:55 MSY 13:14 86%
UA 2474 IAH 22:15 MSY 23:26 86%
UA 575 IAH 09:45 MSY 11:01 79%
UA 2170 IAH 20:30 MSY 21:49 79%
· · ·
UA 2140 IAH 18:32 MSY 19:51 76%

All 12 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 4019flown by Mesa IAH 07:20 MSY 08:37 1h 17m 19 84% 0.0% 24 min
UA 491 IAH 07:30 MSY 08:46 1h 16m 327 92% 0.0% 43 min
UA 575 IAH 09:45 MSY 11:01 1h 16m 199 79% 0.0% 53 min
UA 2385 IAH 11:55 MSY 13:14 1h 19m 343 86% 0.0% 54 min
UA 1493 IAH 15:08 MSY 16:27 1h 19m 53 75% 0.0% 46 min
UA 686 IAH 15:08 MSY 16:27 1h 19m 30 59% 0.0% 72 min
UA 6173flown by Mesa IAH 16:40 MSY 17:59 1h 19m 66 77% 0.0% 60 min
UA 2140 IAH 18:32 MSY 19:51 1h 19m 271 76% 0.0% 87 min
UA 1259 IAH 18:32 MSY 19:51 1h 19m 34 76% 0.0% 88 min
UA 2170 IAH 20:30 MSY 21:49 1h 19m 327 79% 0.6% 58 min
UA 1696 IAH 20:30 MSY 21:49 1h 19m 36 81% 0.0% 55 min
UA 2474 IAH 22:15 MSY 23:26 1h 11m 332 86% 0.0% 57 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 MSY 1h 17m 84% 0.1% 2,920 Flying now
Spirit IAH MSY 1h 17m 88% 0.0% 123 Not flying now
Frontier IAH MSY 1h 15m 77%few flights 3.7% 27 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