Route · MIA → IAH · 2020–2025 BTS data
Miami to Houston
The MIA–IAH corridor (Miami, FL → Houston, TX) runs behind the national average, served by 36 carriers across roughly 964 miles.
Data updated 2026-06-13
- 76.5%
- On-time
- -2.5 pts
- vs US avg
- 80 min
- Delay when late
- 18,068
- Flights
Cancelled
2.0%
Best Month
Oct 2024 87%
Worst Month
May 2024 58%
Distance
964 mi
Carriers
36
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 340 | 60 | 0 | 2 | F9,NK,AA,MQ,UA |
| Nov 2025 | 332 | 68 | 5 | 0 | UA,F9,MQ,NK,AA,YX |
| Oct 2025 | 304 | 60 | 1 | 0 | AA,UA,F9,MQ,NK |
| Sep 2025 | 276 | 53 | 0 | 0 | MQ,UA,NK,F9,AA |
| Aug 2025 | 300 | 98 | 3 | 0 | AA,F9,MQ,NK,UA |
| Jul 2025 | 311 | 96 | 7 | 1 | AA,NK,UA,F9 |
| Jun 2025 | 304 | 94 | 7 | 0 | AA,UA,F9,NK |
| May 2025 | 348 | 118 | 3 | 2 | AA,NK,UA,F9,MQ |
| Apr 2025 | 315 | 60 | 3 | 0 | F9,MQ,NK,UA,AA |
| Mar 2025 | 340 | 95 | 5 | 1 | AA,UA,NK,F9,MQ |
| Feb 2025 | 274 | 70 | 0 | 1 | AA,UA,F9,MQ,NK |
| Jan 2025 | 322 | 89 | 15 | 1 | AA,UA,F9,MQ,NK |
| Dec 2024 | 329 | 86 | 3 | 2 | AA,F9,MQ,NK,UA |
| Nov 2024 | 305 | 39 | 3 | 0 | UA,MQ,NK,AA |
| Oct 2024 | 259 | 33 | 3 | 1 | UA,MQ,NK,AA |
| Sep 2024 | 255 | 52 | 0 | 0 | UA,AA,MQ,NK |
| Aug 2024 | 293 | 88 | 8 | 1 | AA,MQ,NK,UA |
| Jul 2024 | 274 | 94 | 23 | 1 | AA,MQ,NK,UA |
| Jun 2024 | 271 | 102 | 12 | 1 | AA,MQ,NK,UA |
| May 2024 | 300 | 127 | 9 | 3 | AA,MQ,NK,UA |
| Apr 2024 | 261 | 53 | 1 | 0 | AA,MQ,NK,UA |
| Mar 2024 | 288 | 116 | 8 | 1 | AA,MQ,NK,UA |
| Feb 2024 | 258 | 57 | 0 | 0 | AA,MQ,NK,UA |
| Jan 2024 | 263 | 98 | 23 | 1 | AA,MQ,NK,UA |
Cancellation Rate
2.0%
142 of 7,122 flights
Diversion Rate
0.3%
19 of 7,122 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
MIA - Miami
Full on-time, delay-cause, and seasonal performance for Miami, FL.
Origin airport →IAH - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
Destination airport →Compare the two airports
See MIA 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 MIA–IAH.
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Routes of a similar trip length
What the Data Says About MIA to IAH
The Miami to Houston corridor (MIA to IAH) posts a 76.5% on-time rate on the lower edge of the average band, based on 18,068 tracked flights. Late flights run 79.7 minutes behind on average. 36 carriers cover the 964-mile route; over the last 24 months, 142 of 7,122 flights were cancelled (2.0%) and 0.3% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 87% on-time, while May 2024 came in at just 58% - a 30-point swing worth factoring into travel timing.
Frequently Asked Questions
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Flight Guides
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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.