HOU to MIA flight delays & on-time performance
Nonstop flights from William P. Hobby Airport to Miami International Airport · 955 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at HOU or MIA right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Houston (HOU) to Miami (MIA) arrived on time 50% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.7% were cancelled, and 12% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 1pm did best (82% on time); around 9pm did worst (24%).
- Saturday was the most reliable day to fly (72% on time) and Tuesday the least (25%).
- The largest source of delay minutes was late-arriving aircraft (37%).
Which airline is most on time from HOU to MIA?
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 |
|---|---|---|---|---|---|
| Southwest Airlines | 50% | 0.7% | 27 min | 12.2% | 288 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 10am77%13 flights
- 11am60%30 flights
- 1pm82%33 flights
- 2pm26%35 flights
- 3pm38%61 flights
- 7pm46%37 flights
- 8pm61%33 flights
- 9pm24%34 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday51%2.5% cancelled
- Tuesday25%0.0% cancelled
- Wednesday48%0.0% cancelled
- Thursday37%0.0% cancelled
- Friday42%0.0% cancelled
- Saturday72%1.5% cancelled
- Sunday50%0.0% 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 aircraft37%
- Airline (crew, maintenance, cleaning, fueling)33%
- Air traffic control & airport congestion27%
- Extreme weather4%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather50%
- Air traffic control & airport congestion50%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
HOU to MIA: common questions
- How often are HOU to MIA flights on time?
- 50% 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 Houston to Miami cancelled?
- 0.7% of scheduled flights were cancelled (2 of 288).
- How long are typical delays?
- Across all flights the average arrival delay was 27 min (early arrivals count as zero). Flights that were late arrived 50 min behind schedule on average, and 12.2% of flights were an hour or more late.
- How long is taxi time at HOU?
- Flights on this route spent 14 min taxiing from the gate to takeoff on average.
Related routes
Return trip: MIA to HOU — 72% on time
More flights from Houston
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: HOU → MIA, nonstop flights by US airlines that report to the DOT. How we calculate this.