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1,947 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 6–7 am 94% arrive on time from PHL
Best single flight UA 2038 PHL 13:04 → IAH 15:35 · 87% 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).

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PHL
91
87
82
88
84
83
79
76
67
51
% 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. Mesa, Republic) 1,023 86% 1.0% 94 min
American (incl. PSA, Republic) 840 78% 2.9% 85 min
Frontier 72 – 1.4% 64 min
Spirit 12 – 0.0% 43 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 2038 PHL 13:04 IAH 15:35 87%

All 10 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 4066flown by Mesa PHL 06:00 IAH 08:42 3h 42m 10 90% 0.0% 22 min
UA 584 PHL 06:15 IAH 08:44 3h 29m 109 95% 0.9% 49 min
AA 4780flown by Republic PHL 07:00 IAH 09:45 3h 45m 13 85% 0.0% 155 min
F9 2153 PHL 07:00 IAH 09:41 3h 41m 72 68% 1.4% 64 min
AA 1927 PHL 08:57 IAH 11:41 3h 44m 65 81% 0.0% 54 min
AA 1925 PHL 13:02 IAH 15:47 3h 45m 67 81% 4.5% 57 min
UA 2038 PHL 13:04 IAH 15:35 3h 31m 159 87% 0.6% 73 min
AA 3021 PHL 19:55 IAH 22:49 3h 54m 75 70% 6.7% 135 min
UA 2430 PHL 19:58 IAH 22:32 3h 34m 49 67% 2.0% 74 min
UA 2015 PHL 19:58 IAH 22:32 3h 34m 23 55% 4.3% 185 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 PHL IAH 3h 46m 86% 1.0% 1,023 Flying now
American PHL IAH 3h 47m 78% 2.9% 840 Flying now
Frontier PHL IAH 3h 41m 68% 1.4% 72 Flying now
Spirit PHL IAH 3h 44m 67%few flights 0.0% 12 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