Houston (IAH) to Montgomery (MGM): On-Time Performance
Data through May 2026
Houston (IAH) to Montgomery (MGM) is a thinner route than most in this dataset — 110 departures over the past year, roughly 2 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 78% arrived on time.
- On-time
- 78%
- arrived <15 min late
- Avg delay
- 20 min
- completed flights
- Cancelled
- 0.0%
- Flights/day
- 0.30
- last 12 months
- Duration
- 1h 55m
- scheduled
- Distance
- 554 mi
Best time to fly from IAH to MGM
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 86% | 31 min |
| Tuesdaybest | 100% | 1 min |
| Wednesday | 69% | 16 min |
| Thursday | 63% | 30 min |
| Friday | 69% | 25 min |
| Saturday | 88% | 21 min |
| Sunday | 75% | 17 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft30%
- Airline operations47%
- National airspace system6%
- Weather16%
Frequently asked questions
- How often are flights from IAH to MGM delayed?
- 22% of IAH–MGM flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 20 minutes.
- How long is the flight from IAH to MGM?
- The scheduled IAH–MGM flight time averages 1h 55m over 554 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
- How often are IAH to MGM flights cancelled?
- 0% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
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Based on 110 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.