Route
PHX → ONT
Phoenix Sky Harbor International Airport Ontario International Airport
How punctual is this route?
- On-time arrivals
- 76.8%
- Less than 15 minutes late
- Cancelled
- 0.5%
- Of scheduled flights
- Average delay when late
- 61 min
- Flights arriving 15+ minutes late
- Flights tracked
- 3,012
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 59%
- Airline (crew, maintenance, cleaning) 34%
- Air traffic control & airport 5%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 77.2% | 227 |
| October 2025 | 78.7% | 258 |
| November 2025 | 75.6% | 273 |
| December 2025 | 77.2% | 282 |
| January 2026 | 84.2% | 261 |
| February 2026 | 83.3% | 240 |
| March 2026 | 79.5% | 288 |
| April 2026 | 76.2% | 252 |
| May 2026 | 71.7% | 254 |
| June 2026 | 68.9% | 224 |
| July 2026 | 70.6% | 231 |
| August 2026 | 77.4% | 222 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Southwest Airlines | 1,616 | 73.9% | 0.2% | 54 min |
| American Airlines | 1,305 | 79.9% | 0.8% | 72 min |
| SkyWest Airlines | 46 | 80.0% | 2.2% | 50 min |
| Envoy Air | 45 | 91.1% | 0.0% | 45 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
AA1666
26% late · 237 flights
-
AA3016
22% late · 135 flights
-
AA1423
7% late · 130 flights
-
AA1238
29% late · 129 flights
-
AA2244
23% late · 76 flights
-
AA3139
21% late · 73 flights
-
AA2661
10% late · 62 flights
-
WN2392
32% late · 60 flights
-
WN3078
11% late · 57 flights
-
WN3196
5% late · 55 flights
-
WN2139
30% late · 50 flights
-
WN3851
70% late · 50 flights
-
WN2797
2% late · 47 flights
-
AA2397
26% late · 46 flights
-
AA2459
20% late · 44 flights
-
AA2463
7% late · 44 flights
-
MQ4143
9% late · 44 flights
-
WN1409
24% late · 43 flights
-
WN759
7% late · 43 flights
-
WN2965
50% late · 42 flights
-
WN4099
14% late · 42 flights
-
AA1782
8% late · 36 flights
-
AA944
6% late · 36 flights
-
WN3197
8% late · 36 flights
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