Route · IAH → SJC · 2020–2025 BTS data
Houston to San Jose
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), IAH to SJC (Houston to San Jose) ranks #3960 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 81.8%
- On-time
- +2.8 pts
- vs US avg
- 67 min
- Delay when late
- 1,765
- Flights
- #3960 of 4927
- Corpus placement
Cancelled
1.1%
Best Month
N/A
Worst Month
N/A
Distance
1,608 mi
Carriers
6
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Nov 2025 | 30 | 3 | 0 | 0 | UA |
| Aug 2025 | 31 | 6 | 0 | 0 | UA |
| Jul 2025 | 30 | 5 | 0 | 0 | UA |
| Jun 2025 | 30 | 6 | 1 | 0 | UA |
| May 2025 | 31 | 5 | 0 | 0 | UA |
| Dec 2024 | 31 | 4 | 0 | 0 | UA |
| Nov 2024 | 30 | 9 | 0 | 0 | UA |
| Oct 2024 | 31 | 3 | 0 | 0 | UA |
| Sep 2024 | 30 | 6 | 0 | 0 | UA |
| Aug 2024 | 31 | 14 | 0 | 0 | UA |
| Jul 2024 | 31 | 15 | 1 | 0 | UA |
| Jun 2024 | 30 | 11 | 1 | 0 | UA |
| May 2024 | 31 | 17 | 1 | 0 | UA |
| Apr 2024 | 30 | 11 | 0 | 0 | UA |
| Mar 2024 | 30 | 5 | 1 | 0 | UA |
| Nov 2023 | 30 | 1 | 0 | 0 | UA |
| Oct 2023 | 31 | 2 | 0 | 0 | UA |
| Sep 2023 | 30 | 3 | 0 | 0 | UA |
| Aug 2023 | 31 | 3 | 0 | 0 | UA |
| Jul 2023 | 31 | 6 | 0 | 0 | UA |
| Jun 2023 | 30 | 4 | 1 | 0 | UA |
| May 2023 | 31 | 3 | 1 | 0 | UA |
| Apr 2023 | 30 | 3 | 1 | 0 | UA |
| Mar 2023 | 30 | 3 | 0 | 0 | UA |
IAH–SJC seasonal on-time pattern
Best: February (96.8%) · weakest: August (75.3%)
Strongest calendar month
February
96.8% on-time · ~31 flights/mo
Busiest calendar month
September
~38 flights/mo avg
Weakest calendar month
August
75.3% on-time · ~37 flights/mo
Cancellation Rate
1.1%
8 of 731 flights
Diversion Rate
0.0%
0 of 731 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
IAH - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
IAH on-time profileSJC - San Jose
Full on-time, delay-cause, and seasonal performance for San Jose, CA.
SJC on-time profileCompare the two airports
See IAH and SJC side by side on delays, cancellations, and reliability.
Compare IAH vs SJCOrigin-hub reliability standing
Mid-pack among IAH departures
From IAH, this corridor sits with 79 other 75–85% on-time routes out of 102 tracked departures, not the hub's reliability leaders (17 at ≥85%) and not the softest ( 6 below 75%). Destination: San Jose · fleet on-time rank #2437 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to IAH–SJC.
Routes with a similar on-time rate
What the Data Says About IAH to SJC
1,765 tracked flights put the IAH to SJC pairing (Houston to San Jose) at a 81.8% on-time rate, squarely in line with the wider network. Delays that do occur run 66.6 minutes on average. Across the 1,608-mile route and its 6 carriers, the trailing 24 months show 1.1% cancelled and 0.0% diverted (731 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, IAH–SJC peaks in February at 96.8% on-time while September carries the heaviest traffic (~38 flights per month) ; the softest month is August at 75.3%, a 21.5-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does IAH to SJC rank among US routes by traffic? ▼
How often are flights delayed from IAH to SJC? ▼
What is the cancellation rate for IAH to SJC? ▼
How far is the flight from IAH to SJC? ▼
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 IAH–SJC data
IAH–SJC is mid-pack at 81.8% on-time; month and carrier mix move more than the corridor headline.
- Compare IAH and SJC airport profiles: delay causes and top routes differ even on the same corridor. IAH airport
- If your dates flex, February (96.8% on-time) beats August (75.3%) on this corridor. Seasonal chart
- 4 other routes post a similar 81.8% 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.