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3,027 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 73%.

Best time to leave 5–6 am 97% arrive on time from ONT
Best single flight AA 1194 ONT 06:11 → PHX 07:30 · 92% 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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ONT
97
92
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92
82
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84
69
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75
58
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53
% 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
Phoenix flights leaving ONT 8–9 am: 1Close ×
WN 4421 ONT 08:00 PHX 09:15 1h 15m 26 96% 0.0% 18 min

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
American (incl. Envoy, SkyWest) 1,417 84% 0.9% 103 min
Southwest 1,610 81% 0.4% 50 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.
AA 1194 ONT 06:11 PHX 07:30 92%
All 12 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.
American ONT PHX 1h 21m 84% 0.9% 1,417 Flying now
Southwest ONT PHX 1h 15m 81% 0.4% 1,610 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