Orlando (MCO) to Houston (IAH): On-Time Performance
Data through July 2026
The calendar drives reliability on MCO–IAH. September 2025 flights landed on schedule 91% of the time, but July 2024 dropped to 60% — a gap of 31 points. Across the full period the route averages 80% on-time against a national 78%. Morning departures also hold up better than evening ones (88% vs 69%), which matters most in the rough months.
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 1.5%
- Flights/day
- 9.9
- last 12 months
- Duration
- 2h 43m
- scheduled
- Distance
- 854 mi
Best airline from MCO to IAH
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 81% | 18 min | 1.3% | 4,955 |
| Frontier Airlines | 80% | 15 min | 1.1% | 1,050 |
| Spirit Airlines | 76% | 18 min | 2.5% | 1,455 |
Monthly on-time trend
Best time to fly from MCO to IAH
Aim for departures around 5 a.m. (95% on-time); avoid 5 p.m. departures (65%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 20 min |
| Tuesdaybest | 84% | 12 min |
| Wednesday | 83% | 16 min |
| Thursday | 80% | 15 min |
| Friday | 79% | 18 min |
| Saturday | 78% | 18 min |
| Sunday | 74% | 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 aircraft36%
- Airline operations27%
- National airspace system30%
- Weather8%
Frequently asked questions
- How often are flights from MCO to IAH delayed?
- 20% of MCO–IAH 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 18 minutes.
- Which airline is most reliable from MCO to IAH?
- United Airlines has the best on-time record on this route at 81%, based on 4,955 flights. 3 airlines flew MCO–IAH frequently enough to compare in this period.
- What is the best time of day to fly from MCO to IAH?
- Departures around 5 a.m. have the best record (95% on-time), while departures around 5 p.m. have the worst (65%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from MCO to IAH?
- The scheduled MCO–IAH flight time averages 2h 43m over 854 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are MCO to IAH flights cancelled?
- 1.5% 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 MCO to IAH?
- July 2024 was the roughest month in this dataset, with only 60% of arrivals on time. The best was September 2025 at 91%. If your dates are flexible, that 31-point gap is worth planning around.
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Based on 7,509 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.