Route · PHX → ONT · 2020–2025 BTS data
Phoenix to Ontario
The PHX–ONT corridor (Phoenix, AZ → Ontario, CA) runs ahead of the national average, served by 39 carriers across roughly 325 miles.
Data updated 2026-06-13
- 81.2%
- On-time
- +2.2 pts
- vs US avg
- 63 min
- Delay when late
- 16,938
- Flights
Cancelled
0.4%
Best Month
Jan 2025 88%
Worst Month
May 2024 69%
Distance
325 mi
Carriers
39
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 282 | 64 | 1 | 0 | WN,AA |
| Nov 2025 | 273 | 65 | 7 | 0 | AA,WN |
| Oct 2025 | 258 | 55 | 0 | 0 | AA,OO,WN |
| Sep 2025 | 227 | 51 | 3 | 0 | WN,OO,AA |
| Aug 2025 | 237 | 44 | 0 | 0 | AA,OO,WN |
| Jul 2025 | 263 | 58 | 1 | 0 | AA,OO,WN |
| Jun 2025 | 260 | 76 | 0 | 0 | AA,OO,WN,MQ |
| May 2025 | 294 | 65 | 0 | 1 | AA,OO,WN,MQ |
| Apr 2025 | 289 | 50 | 0 | 0 | MQ,OO,WN,AA |
| Mar 2025 | 291 | 56 | 0 | 0 | AA,WN,MQ |
| Feb 2025 | 240 | 31 | 0 | 0 | AA,OO,WN,MQ |
| Jan 2025 | 255 | 30 | 5 | 4 | AA,OO,WN,MQ |
| Dec 2024 | 281 | 48 | 0 | 0 | AA,MQ,WN |
| Nov 2024 | 272 | 33 | 0 | 0 | MQ,WN,OO,AA |
| Oct 2024 | 292 | 47 | 1 | 1 | OO,WN,AA |
| Sep 2024 | 262 | 41 | 0 | 0 | WN,OO,AA,F9 |
| Aug 2024 | 290 | 51 | 1 | 0 | AA,F9,WN,OO |
| Jul 2024 | 289 | 80 | 2 | 0 | AA,F9,OO,WN |
| Jun 2024 | 275 | 55 | 2 | 0 | AA,F9,OO,WN |
| May 2024 | 293 | 90 | 2 | 0 | AA,F9,OO,WN |
| Apr 2024 | 274 | 49 | 0 | 1 | AA,F9,WN |
| Mar 2024 | 279 | 52 | 0 | 0 | AA,F9,WN |
| Feb 2024 | 242 | 33 | 0 | 0 | AA,F9,OO,WN |
| Jan 2024 | 254 | 54 | 0 | 0 | AA,F9,MQ,WN,OO |
Cancellation Rate
0.4%
25 of 6,472 flights
Diversion Rate
0.1%
7 of 6,472 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
PHX - Phoenix
Full on-time, delay-cause, and seasonal performance for Phoenix, AZ.
Origin airport →ONT - Ontario
Full on-time, delay-cause, and seasonal performance for Ontario, CA.
Destination airport →Compare the two airports
See PHX and ONT side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to PHX–ONT.
Routes with a similar on-time rate
What the Data Says About PHX to ONT
16,938 tracked flights put the PHX to ONT pairing (Phoenix to Ontario) at a 81.2% on-time rate, squarely in line with the wider network. Delays that do occur run 63.4 minutes on average. Across the 325-mile route and its 39 carriers, the trailing 24 months show 0.4% cancelled and 0.1% diverted (6,472 flights sampled).
The monthly split is wide on this route: Jan 2025 posted the strongest performance at 88% on-time, while May 2024 came in at just 69% - a 19-point swing worth factoring into travel timing.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.