2,960 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 88% depart on time. After 4 pm it’s 73%.

Best time to leave 7–8 am 95% arrive on time from IAH

Best single flight UA 1798 IAH 14:20 → PHX 15:10 · 86% on time Avoid F9 1703 IAH 11:54 → PHX 12:42 · 69% 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).

IAH

% 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)	1,780	82%	0.3%	63 min
American (incl. Envoy, SkyWest)	889	80%	1.7%	136 min
Frontier	291	68%	0.7%	78 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 1798	IAH 14:20	PHX 15:10	86%
UA 1895	IAH 09:40	PHX 10:34	85%
UA 2078	IAH 19:53	PHX 20:42	72%
F9 1703	IAH 11:54	PHX 12:42	69%

All 10 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	IAH	PHX	3h 01m	82%	0.3%	1,780	Flying now
American	IAH	PHX	3h 04m	80%	1.7%	889	Flying now
Frontier	IAH	PHX	3h 00m	68%	0.7%	291	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