MCO to IAH flight delays & on-time performance
Nonstop flights from Orlando International Airport to George Bush Intercontinental Airport · 854 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at MCO or IAH right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Orlando (MCO) to Houston (IAH) arrived on time 83% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1% were cancelled, and 8% arrived an hour or more late.
- United Airlines was the most punctual airline here (84% on time); Spirit Airlines was the least (76%).
- Departures scheduled around 6am did best (95% on time); around 5pm did worst (68%).
- Wednesday was the most reliable day to fly (88% on time) and Sunday the least (75%).
- The largest source of delay minutes was late-arriving aircraft (35%).
Which airline is most on time from MCO to IAH?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| United Airlines | 84% | 0.6% | 14 min | 7.2% | 2,463 |
| Frontier Airlines | 81% | 0.4% | 15 min | 7.4% | 559 |
| Spirit Airlines | 76% | 2.8% | 18 min | 9.7% | 605 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am95%122 flights
- 7am91%529 flights
- 8am82%75 flights
- 9am87%431 flights
- 10am89%71 flights
- 11am92%307 flights
- 12pm84%120 flights
- 1pm93%220 flights
- 2pm78%177 flights
- 3pm82%363 flights
- 4pm71%206 flights
- 5pm68%372 flights
- 6pm73%130 flights
- 7pm73%242 flights
- 8pm70%133 flights
- 9pm72%70 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday83%2.0% cancelled
- Tuesday88%0.4% cancelled
- Wednesday88%0.4% cancelled
- Thursday84%0.6% cancelled
- Friday82%0.9% cancelled
- Saturday80%0.6% cancelled
- Sunday75%1.7% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft35%
- Air traffic control & airport congestion29%
- Airline (crew, maintenance, cleaning, fueling)29%
- Extreme weather7%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather60%
- Airline (crew, maintenance, cleaning, fueling)29%
- Air traffic control & airport congestion11%
- Security0%
MCO to IAH: common questions
- How often are MCO to IAH flights on time?
- 83% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Orlando to Houston cancelled?
- 1.0% of scheduled flights were cancelled (35 of 3,627).
- How long are typical delays?
- Across all flights the average arrival delay was 15 min (early arrivals count as zero). Flights that were late arrived 79 min behind schedule on average, and 7.6% of flights were an hour or more late.
- How long is taxi time at MCO?
- Flights on this route spent 18 min taxiing from the gate to takeoff on average.
Related routes
Return trip: IAH to MCO — 82% on time
More flights from Orlando
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: MCO → IAH, nonstop flights by US airlines that report to the DOT. How we calculate this.