Route · SJC → IAH · 2020–2025 BTS data
San Jose to Houston
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SJC to IAH (San Jose to Houston) ranks #4002 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 88.2%
- On-time
- +9.2 pts
- vs US avg
- 78 min
- Delay when late
- 1,707
- Flights
- #4002 of 4927
- Corpus placement
Cancelled
1.0%
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 | 10 | 0 | 0 | UA |
| Aug 2025 | 31 | 12 | 0 | 0 | UA |
| Jul 2025 | 30 | 13 | 0 | 0 | UA |
| Jun 2025 | 30 | 13 | 1 | 0 | UA |
| May 2025 | 31 | 7 | 0 | 0 | UA |
| Dec 2024 | 32 | 3 | 0 | 0 | UA |
| Nov 2024 | 30 | 0 | 0 | 0 | UA |
| Oct 2024 | 31 | 1 | 0 | 0 | UA |
| Sep 2024 | 30 | 2 | 0 | 0 | UA |
| Aug 2024 | 31 | 9 | 0 | 0 | UA |
| Jul 2024 | 31 | 8 | 2 | 0 | UA |
| May 2024 | 32 | 7 | 1 | 0 | UA |
| Apr 2024 | 30 | 3 | 0 | 0 | UA |
| Mar 2024 | 30 | 3 | 1 | 0 | UA |
| Nov 2023 | 30 | 1 | 0 | 0 | UA |
| Oct 2023 | 31 | 0 | 0 | 0 | UA |
| Sep 2023 | 30 | 4 | 0 | 0 | UA |
| Aug 2023 | 31 | 3 | 0 | 0 | UA |
| Jul 2023 | 31 | 4 | 0 | 1 | UA |
| Jun 2023 | 30 | 5 | 0 | 0 | UA |
| May 2023 | 31 | 10 | 1 | 2 | UA |
| Apr 2023 | 30 | 3 | 1 | 0 | UA |
| Mar 2023 | 31 | 0 | 0 | 0 | UA |
| Jan 2023 | 30 | 1 | 0 | 1 | UA |
SJC–IAH seasonal on-time pattern
Best: October (97.3%) · weakest: July (77.3%)
Strongest calendar month
October
97.3% on-time · ~37 flights/mo
Busiest calendar month
September
~40 flights/mo avg
Weakest calendar month
July
77.3% on-time · ~37 flights/mo
Cancellation Rate
1.0%
7 of 734 flights
Diversion Rate
0.5%
4 of 734 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SJC - San Jose
Full on-time, delay-cause, and seasonal performance for San Jose, CA.
SJC on-time profileIAH - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
IAH on-time profileCompare the two airports
See SJC and IAH side by side on delays, cancellations, and reliability.
Compare SJC vs IAHOrigin-hub reliability standing
Among SJC's stronger departures
SJC → IAH posts a 88.2% on-time rate, landing in the ≥85% band with 21 of 31 BTS-tracked routes leaving San Jose. The same hub also shows 9 mid-band and 1 challenged departures · fleet-wide on-time rank #392 of 4927 (highest on-time = #1).
Similar routes
Other BTS-tracked routes with comparable performance or trip length to SJC–IAH.
Routes with a similar on-time rate
What the Data Says About SJC to IAH
San Jose to Houston (SJC to IAH) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 88.2% on-time rate across 1,707 flights, with delays that do happen averaging 77.6 minutes. The corridor runs roughly 1,608 miles and is served by 6 carriers. Over the most recent 24 months, 7 of 734 flights were cancelled (1.0%) and 4 diverted (0.5%).
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, SJC–IAH peaks in October at 97.3% on-time while September carries the heaviest traffic (~40 flights per month) ; the softest month is July at 77.3%, a 20.0-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does SJC to IAH rank among US routes by traffic? ▼
How often are flights delayed from SJC to IAH? ▼
What is the cancellation rate for SJC to IAH? ▼
How far is the flight from SJC to IAH? ▼
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 SJC–IAH data
SJC–IAH runs 9.2 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare SJC and IAH airport profiles: delay causes and top routes differ even on the same corridor. SJC airport
- If your dates flex, October (97.3% on-time) beats July (77.3%) on this corridor. Seasonal chart
- 4 other routes post a similar 88.2% 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.