ONT → PHXOntario to Phoenix

live

Direct flights from Ontario (ONT) to Phoenix (PHX): 21 nonstop departures observed each week across 3 airlines. 80% of the last 5 operated flights arrived within 15 minutes of schedule. The median arrival is 10 minutes late. No cancellations were recorded across the 5 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 18 October 2026 at 00:07 UTC.

Today, ONT → PHX

Sat 17 Oct · local times
AA4171American AirlinesIn the air, 19 min late

Left ONT at 10:00, 19 min after its 09:41 slot.

Likely landing
about 10:55middle half 10:51 to 11:05 · sched 11:02

Landing estimate from 199,736 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. 05:30 WN3274Southwest Left 05:44 +14 ·
  2. 06:15 AA1194American Airlines Left 06:24 +9 Landed 07:15 −22
  3. 09:25 WN1915Southwest Left 09:35 +10 ·
  4. 09:41 AA4171American Airlines Left 10:00 +19 PHX about 10:55In the air · sched 11:02
  5. 13:05 AA2661American Airlines Left 13:15 +10 Landed 14:06 −20
  6. 16:29 AA2859American Airlines Est. 16:29Departure not confirmed by the board PHX est. 17:32sched 17:52
  7. 16:40 WN3277Southwest Airlines Est. 16:40Departure not confirmed by the board PHX est. 18:51 +51sched 18:00
  8. · UA1375United Airlines On schedule PHX est. 21:04sched 21:15

Checked ONT board 15:18 · PHX board 17:07

ONT Ontario busy · +20
PHX Phoenix smooth · +0
521 km · ~1h 10m est.
dep bank 05:20–21:1521x weekly
Runs reliable · 3 airlines · 21x weekly · nonstop
80% on time

of the last 5 operated ONT → PHX flights arrived within 15 minutes

Median arrival delay is +10 min. 0 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+10 minacross the last 5 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 · AA859 varies We Fr · AA4171 09:41 daily · AA2859 16:29 Mo Tu We Th Fr Sa

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
10-17AA1194dep +9 → arr−22
10-17AA2661dep +10 → arr−20
10-17AA4171departed+19
10-17WN1915departed+10
10-17WN3274departed+14

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 +20 min busy 🌤 mostly cloudy · NE 13 kt Full ONT delay board →
PHXPhoenix +0 min smooth 🌤 mostly cloudy · E 10 kt Full PHX delay board →

Weather lens

Current conditions put the pressure at ONT: 40% odds of a 15+ minute delay and around +8 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?

Smooth skies ahead. The departure side at ONT is the weaker end, route health score 87/100. 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 72 flights a week between them. Compare carrier days and times in the airline list above.