Route · HOU → ONT · 2020–2025 BTS data
Houston to Ontario
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), HOU to ONT (Houston to Ontario) ranks #4830 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 79.9%
- On-time
- +0.9 pts
- vs US avg
- 62 min
- Delay when late
- 581
- Flights
- #4830 of 4927
- Corpus placement
Cancelled
0.5%
Best Month
N/A
Worst Month
N/A
Distance
1,345 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 31 | 6 | 0 | 0 | WN |
| Oct 2025 | 30 | 8 | 0 | 0 | WN |
| Sep 2025 | 30 | 3 | 0 | 0 | WN |
| Aug 2025 | 30 | 5 | 0 | 0 | WN |
| Jul 2025 | 31 | 1 | 0 | 0 | WN |
| Jun 2025 | 30 | 7 | 0 | 0 | WN |
| May 2025 | 31 | 7 | 0 | 0 | WN |
| Apr 2025 | 30 | 2 | 0 | 0 | WN |
| Mar 2025 | 31 | 4 | 0 | 0 | WN |
| Jan 2025 | 31 | 4 | 2 | 0 | WN |
| Dec 2024 | 31 | 7 | 0 | 0 | WN |
| Oct 2024 | 31 | 3 | 0 | 0 | WN |
| Aug 2024 | 31 | 3 | 0 | 0 | WN |
| Jul 2024 | 31 | 14 | 1 | 0 | WN |
| Jun 2024 | 30 | 8 | 0 | 0 | WN |
| May 2024 | 31 | 12 | 0 | 0 | WN |
| Apr 2024 | 30 | 6 | 0 | 0 | WN |
| Mar 2024 | 31 | 7 | 0 | 0 | WN |
| Jan 2024 | 30 | 10 | 0 | 0 | WN |
HOU–ONT seasonal on-time pattern
Best: September (90.0%) · weakest: May (69.4%)
Strongest calendar month
September
90.0% on-time · ~30 flights/mo
Busiest calendar month
January
~31 flights/mo avg
Weakest calendar month
May
69.4% on-time · ~31 flights/mo
Cancellation Rate
0.5%
3 of 581 flights
Diversion Rate
0.0%
0 of 581 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
HOU - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
HOU on-time profileONT - Ontario
Full on-time, delay-cause, and seasonal performance for Ontario, CA.
ONT on-time profileCompare the two airports
See HOU and ONT side by side on delays, cancellations, and reliability.
Compare HOU vs ONTOrigin-hub reliability standing
Mid-pack among HOU departures
From HOU, this corridor sits with 43 other 75–85% on-time routes out of 50 tracked departures, not the hub's reliability leaders (1 at ≥85%) and not the softest ( 6 below 75%). Destination: Ontario · fleet on-time rank #3185 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to HOU–ONT.
Routes with a similar on-time rate
What the Data Says About HOU to ONT
581 tracked flights put the HOU to ONT pairing (Houston to Ontario) at a 79.9% on-time rate, squarely in line with the wider network. Delays that do occur run 61.6 minutes on average. Across the 1,345-mile route and its 1 carrier, the trailing 24 months show 0.5% cancelled and 0.0% diverted (581 flights sampled).
Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.
On the multi-year calendar, HOU–ONT peaks in September at 90.0% on-time while January carries the heaviest traffic (~31 flights per month) ; the softest month is May at 69.4%, a 20.6-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does HOU to ONT rank among US routes by traffic? ▼
How often are flights delayed from HOU to ONT? ▼
What is the cancellation rate for HOU to ONT? ▼
How far is the flight from HOU to ONT? ▼
Airports on this route
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.
Using HOU–ONT data
HOU–ONT is mid-pack at 79.9% on-time; month and carrier mix move more than the corridor headline.
- Compare HOU and ONT airport profiles: delay causes and top routes differ even on the same corridor. HOU airport
- If your dates flex, September (90.0% on-time) beats May (69.4%) on this corridor. Seasonal chart
- 4 other routes post a similar 79.9% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
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.