LEX to LAS flight delays & on-time performance
Nonstop flights from Blue Grass Airport to Harry Reid International Airport · 1,686 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at LEX or LAS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Lexington (LEX) to Las Vegas (LAS) arrived on time 67% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.1% were cancelled, and 13% arrived an hour or more late.
- Allegiant Air is the only airline reporting nonstop flights on this route.
- Departures scheduled around 10pm did best (64% on time); around 9pm did worst (58%).
- Thursday was the most reliable day to fly (74% on time) and Sunday the least (60%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (46%).
Which airline is most on time from LEX to LAS?
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 |
|---|---|---|---|---|---|
| Allegiant Air | 67% | 1.1% | 30 min | 13.2% | 92 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 2pm92%14 flights
- 9pm58%19 flights
- 10pm64%59 flights
Best day of the week
On-time arrival rate by day of departure.
- Tuesday100%0.0% cancelled
- Thursday74%0.0% cancelled
- Saturday33%0.0% cancelled
- Sunday60%2.3% 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)46%
- Air traffic control & airport congestion24%
- Late-arriving aircraft23%
- Extreme weather7%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
LEX to LAS: common questions
- How often are LEX to LAS flights on time?
- 67% 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 Lexington to Las Vegas cancelled?
- 1.1% of scheduled flights were cancelled (1 of 92).
- How long are typical delays?
- Across all flights the average arrival delay was 30 min (early arrivals count as zero). Flights that were late arrived 87 min behind schedule on average, and 13.2% of flights were an hour or more late.
- How long is taxi time at LEX?
- Flights on this route spent 14 min taxiing from the gate to takeoff on average.
Related routes
Return trip: LAS to LEX — 74% on time
More flights from Lexington
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: LEX → LAS, nonstop flights by US airlines that report to the DOT. How we calculate this.