Houston (IAH) to Cleveland (CLE): On-Time Performance
Data through July 2026
The calendar drives reliability on IAH–CLE. January 2026 flights landed on schedule 95% of the time, but July 2024 dropped to 55% — a gap of 40 points. Across the full period the route averages 83% on-time against a national 78%. Morning departures also hold up better than evening ones (91% vs 77%), which matters most in the rough months.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 0.8%
- Flights/day
- 2.3
- last 12 months
- Duration
- 2h 50m
- scheduled
- Distance
- 1,091 mi
Monthly on-time trend
Best time to fly from IAH to CLE
Aim for departures around 7 a.m. (92% on-time); avoid 7 p.m. departures (67%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 79% | 16 min |
| Tuesday | 84% | 9 min |
| Wednesdaybest | 87% | 9 min |
| Thursday | 86% | 9 min |
| Friday | 84% | 9 min |
| Saturday | 81% | 11 min |
| Sunday | 80% | 13 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft44%
- Airline operations37%
- National airspace system10%
- Weather9%
Frequently asked questions
- How often are flights from IAH to CLE delayed?
- 17% of IAH–CLE 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 11 minutes.
- What is the best time of day to fly from IAH to CLE?
- Departures around 7 a.m. have the best record (92% on-time), while departures around 7 p.m. have the worst (67%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from IAH to CLE?
- The scheduled IAH–CLE flight time averages 2h 50m over 1,091 miles. Actual arrival times vary — flights on this route land 15+ minutes late 17% of the time.
- How often are IAH to CLE flights cancelled?
- 0.8% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from IAH to CLE?
- July 2024 was the roughest month in this dataset, with only 55% of arrivals on time. The best was January 2026 at 95%. If your dates are flexible, that 40-point gap is worth planning around.
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Based on 2,089 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.