Houston (IAH) to Montgomery (MGM): On-Time Performance
Data through July 2026
Houston (IAH) to Montgomery (MGM) is a thinner route than most in this dataset — 232 departures over the past year, roughly 4 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 75% arrived on time.
- On-time
- 75%
- arrived <15 min late
- Avg delay
- 20 min
- completed flights
- Cancelled
- 0.0%
- Flights/day
- 0.64
- 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 |
|---|---|---|
| Mondaybest | 81% | 23 min |
| Tuesday | 79% | 17 min |
| Wednesday | 71% | 21 min |
| Thursday | 71% | 25 min |
| Friday | 71% | 18 min |
| Saturday | 78% | 17 min |
| Sunday | 72% | 23 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft29%
- Airline operations51%
- National airspace system8%
- Weather12%
Frequently asked questions
- How often are flights from IAH to MGM delayed?
- 25% of IAH–MGM flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. 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 25% of the time.
- How often are IAH to MGM flights cancelled?
- 0% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What day of the week is most reliable for IAH to MGM?
- Monday flights have the best record at 81% on-time. Day-of-week differences on this route are meaningful — Wednesday trails at 71%.
Explore related pages
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Related guides
Based on 232 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.