Route
ONT → HOU
Ontario International Airport William P. Hobby Airport
1,345 miles
Return route HOU → ONT →
How punctual is this route?
- On-time arrivals
- 63.1%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 48 min
- Flights arriving 15+ minutes late
- Flights tracked
- 363
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 43%
- Airline (crew, maintenance, cleaning) 38%
- Air traffic control & airport 19%
- Security 0%
- Extreme weather 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 96.7% | 30 |
| October 2025 | 70.0% | 30 |
| November 2025 | 69.0% | 29 |
| December 2025 | 64.5% | 31 |
| January 2026 | 87.1% | 31 |
| February 2026 | 71.4% | 28 |
| March 2026 | 25.8% | 31 |
| April 2026 | 40.0% | 30 |
| May 2026 | 41.9% | 31 |
| June 2026 | 53.3% | 30 |
| July 2026 | 71.0% | 31 |
| August 2026 | 67.7% | 31 |
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 | 363 | 63.1% | 0.0% | 48 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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