Route · HSV → IAH · 2020–2025 BTS data
Huntsville to Houston
The HSV–IAH corridor (Huntsville, AL → Houston, TX) runs ahead of the national average, served by 8 carriers across roughly 595 miles.
Data updated 2026-06-13
- 87.4%
- On-time
- +8.4 pts
- vs US avg
- 80 min
- Delay when late
- 603
- Flights
Cancelled
4.6%
Best Month
May 2020 95%
Worst Month
Feb 2020 78%
Distance
595 mi
Carriers
8
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2022 | 31 | 4 | 0 | 0 | OO |
| Sep 2020 | 54 | 7 | 0 | 0 | EV,OO |
| Aug 2020 | 54 | 3 | 4 | 0 | EV |
| Jul 2020 | 60 | 10 | 0 | 0 | EV |
| Jun 2020 | 48 | 9 | 0 | 0 | EV,YV |
| May 2020 | 57 | 3 | 3 | 0 | EV,YV |
| Apr 2020 | 38 | 2 | 6 | 0 | OO,EV,YV |
| Mar 2020 | 91 | 7 | 13 | 0 | EV,YV,YX,OO |
| Feb 2020 | 82 | 18 | 1 | 0 | YV,EV,OO,YX |
| Jan 2020 | 88 | 13 | 1 | 1 | YV,OO,YX |
Cancellation Rate
4.6%
28 of 603 flights
Diversion Rate
0.2%
1 of 603 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
HSV - Huntsville
Full on-time, delay-cause, and seasonal performance for Huntsville, AL.
Origin airport →IAH - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
Destination airport →Compare the two airports
See HSV and IAH side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to HSV–IAH.
Routes with a similar on-time rate
Routes of a similar trip length
What the Data Says About HSV to IAH
Huntsville to Houston (HSV to IAH) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 87.4% on-time rate across 603 flights, with delays that do happen averaging 79.8 minutes. The corridor runs roughly 595 miles and is served by 8 carriers. Over the most recent 24 months, 28 of 603 flights were cancelled (4.6%) and 1 diverted (0.2%).
The monthly split is wide on this route: May 2020 posted the strongest performance at 95% on-time, while Feb 2020 came in at just 78% - a 17-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from HSV to IAH? ▼
What is the cancellation rate for HSV to IAH? ▼
How far is the flight from HSV to IAH? ▼
When is the best time to fly from HSV to IAH? ▼
Flight Guides
Tips and data-driven advice for choosing reliable routes.
Explore PlainFlights
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.
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.