LAS to MIA flight delays & on-time performance
Nonstop flights from Harry Reid International Airport to Miami International Airport · 2,174 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at LAS or MIA right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Las Vegas (LAS) to Miami (MIA) arrived on time 82% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.8% were cancelled, and 6% arrived an hour or more late.
- American Airlines was the most punctual airline here (84% on time); Frontier Airlines was the least (72%).
- Departures scheduled around 7am did best (90% on time); around 11am did worst (64%).
- Tuesday was the most reliable day to fly (89% on time) and Sunday the least (78%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (54%).
Which airline is most on time from LAS 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 |
|---|---|---|---|---|---|
| Delta Air Lines | 100% | 0.0% | 3 min | 0.0% | 3 |
| American Airlines | 84% | 0.8% | 15 min | 6.1% | 1,275 |
| Frontier Airlines | 72% | 0.0% | 17 min | 9.3% | 86 |
| Spirit Airlines | 65% | 2.0% | 18 min | 10.4% | 49 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 12am92%25 flights
- 6am86%72 flights
- 7am90%207 flights
- 8am82%143 flights
- 9am89%27 flights
- 11am64%43 flights
- 12pm76%149 flights
- 1pm78%201 flights
- 2pm88%17 flights
- 10pm80%114 flights
- 11pm84%393 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday80%2.4% cancelled
- Tuesday89%1.6% cancelled
- Wednesday83%0.5% cancelled
- Thursday83%0.0% cancelled
- Friday80%0.0% cancelled
- Saturday84%0.0% cancelled
- Sunday78%1.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)54%
- Late-arriving aircraft30%
- Air traffic control & airport congestion13%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather82%
- Airline (crew, maintenance, cleaning, fueling)9%
- Air traffic control & airport congestion9%
- Security0%
LAS to MIA: common questions
- How often are LAS to MIA flights on time?
- 82% 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 Las Vegas to Miami cancelled?
- 0.8% of scheduled flights were cancelled (11 of 1,413).
- 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 81 min behind schedule on average, and 6.4% of flights were an hour or more late.
- How long is taxi time at LAS?
- Flights on this route spent 19 min taxiing from the gate to takeoff on average.
Related routes
Return trip: MIA to LAS — 73% on time
More flights from Las Vegas
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: LAS → MIA, nonstop flights by US airlines that report to the DOT. How we calculate this.