ONT → PHXOntario to Phoenix

live

Direct flights from Ontario (ONT) to Phoenix (PHX): 21 nonstop departures observed each week across 3 airlines. 25% of the last 8 operated flights arrived within 15 minutes of schedule. The median arrival is 60 minutes late. No cancellations were recorded across the 8 tracked flights. The nonstop covers 521 km, an estimated 1 hour 10 minutes in the air. Measured by Pro Flight Search from live flight boards at Ontario and Phoenix. Updated 23 October 2026 at 02:42 UTC.

Today, ONT → PHX

Thu 22 Oct · local times
WN3275Southwest AirlinesIn the air, 60 min late

Left ONT at 09:20, 60 min after its 08:20 slot.

Likely landing
about 10:10middle half 10:02 to 10:19 · sched 09:35

Landing estimate from 54,415 tracked flights of under 2 hours that left 60 to 119 min late. The PHX board has not posted a landing time yet. How planes make up time

Track WN3275 →
AA4171American AirlinesIn the air, 22 min late

Left ONT at 10:03, 22 min after its 09:41 slot.

Likely landing
about 11:00middle half 10:54 to 11:08 · sched 11:02

Landing estimate from 206,826 tracked flights of under 2 hours that left 15 to 29 min late. The PHX board has not posted a landing time yet. How planes make up time

Track AA4171 →
  1. 05:20 WN3274Southwest Airlines Left 05:29 +9 PHX 06:35In the air · scheduled landing
  2. 06:15 AA1194American Airlines Left 06:31 +16 Landed 07:22 −15
  3. 08:20 WN3275Southwest Airlines Left 09:20 +60 PHX about 10:10In the air · sched 09:35
  4. 09:41 AA4171American Airlines Left 10:03 +22 PHX about 11:00In the air · sched 11:02
  5. 13:05 AA2661American Airlines Left 14:32 +87 PHX about 15:25In the air · sched 14:26
  6. 13:05 WN3276Southwest Airlines Left 14:21 +76 PHX about 15:10In the air · sched 14:20
  7. 16:29 AA2859American Airlines Left 18:08 +99 Landed 19:03 +71
  8. 18:55 WN962Southwest Airlines Left 19:17 +22 PHX about 20:10In the air · sched 20:10
  9. 19:34 AA1666American Airlines On scheduleT4 PHX est. 20:43sched 20:59
  10. · UA1375United Airlines On schedule PHX est. 22:08 +53sched 21:15
  11. · WN3277Southwest Airlines On schedule PHX est. 20:45 +190sched 17:35

Checked ONT board 19:42 · PHX board 19:41

ONT Ontario heavy · +42
PHX Phoenix smooth · +7
521 km · ~1h 10m est.
dep bank 05:20–21:1521x weekly
Runs rough · 3 airlines · 21x weekly · nonstop
25% on time

of the last 8 operated ONT → PHX flights arrived within 15 minutes

Median arrival delay is +60 min. 0 of 8 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+60 minacross the last 8 operated legs
Flight time~1h 10mestimated from route distance
Weekly departures21x3 direct airlines on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
American AirlinesSouthwest AirlinesUnited Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
American AirlinesAA

Flights AA1194 06:15 daily · AA4171 09:41 daily · AA2859 16:29 daily · AA1666 19:34 Mo We Th Fr Su

Southwest AirlinesWN

Flights WN3274 05:20 Mo Th Fr Sa · WN3585 06:10 Tu We · WN3879 06:10 Su · WN3275 08:20 Mo Th Fr

United AirlinesUA

Flights UA1375 21:15 daily

History

operated legs · board outcomes
10-22AA1194dep +16 → arr−15
10-22AA2661departed+87
10-22AA2859dep +99 → arr+71
10-22AA4171departed+22
10-22WN3274departed+9
10-22WN3275departed+60
10-22WN3276departed+76
10-22WN962departed+22

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
ONTOntario +42 min heavy 🌤 mostly cloudy · SW 9 kt Full ONT delay board →
PHXPhoenix +7 min smooth 🌤 few clouds · W 13 kt Full PHX delay board →

Weather lens

Current conditions put the pressure at ONT: 40% odds of a 15+ minute delay and around +9 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Ontario to Phoenix route actually runs

Pro Flight Search records official board updates for nonstop ONT to PHX flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Ontario (ONT) to Phoenix (PHX) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/ONT-PHX
How we measure this →

ONT to PHX questions

Is ONT–PHX running on time right now?

Some delays possible. The departure side at ONT is the weaker end, route health score 66/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on ONT–PHX?

Operators schedule morning departures around 05:20 and evening departures around 17:00 from ONT. Earlier flights typically land before destination-airport delays accumulate later in the day; check the PHX delay card to confirm conditions when you'd arrive.

How long is the flight from ONT to PHX?

Great-circle distance is 521 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 67–75 min gate-to-gate on this route.

How often does ONT–PHX fly?

3 carriers operate this route, around 69 flights a week between them. Compare carrier days and times in the airline list above.