Buffalo (BUF) to Las Vegas (LAS): On-Time Performance
Data through July 2026
Buffalo (BUF) to Las Vegas (LAS) is a thinner route than most in this dataset — 302 departures over the past year, roughly 6 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 82% arrived on time.
- On-time
- 82%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 0.4%
- Flights/day
- 0.83
- last 12 months
- Duration
- 4h 57m
- scheduled
- Distance
- 1,986 mi
Monthly on-time trend
Best time to fly from BUF to LAS
Aim for departures around 6 a.m. (95% on-time); avoid 5 p.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 81% | 18 min |
| Tuesday | 81% | 9 min |
| Wednesdaybest | 86% | 9 min |
| Thursday | 84% | 11 min |
| Friday | 82% | 9 min |
| Saturday | 81% | 11 min |
| Sunday | 81% | 11 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft49%
- Airline operations32%
- National airspace system19%
Frequently asked questions
- How often are flights from BUF to LAS delayed?
- 18% of BUF–LAS 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 11 minutes.
- What is the best time of day to fly from BUF to LAS?
- Departures around 6 a.m. have the best record (95% on-time), while departures around 5 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BUF to LAS?
- The scheduled BUF–LAS flight time averages 4h 57m over 1,986 miles. Actual arrival times vary — flights on this route land 15+ minutes late 18% of the time.
- How often are BUF to LAS flights cancelled?
- 0.4% 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 BUF to LAS?
- July 2024 was the roughest month in this dataset, with only 61% of arrivals on time. The best was July 2025 at 97%. If your dates are flexible, that 36-point gap is worth planning around.
Explore related pages
More routes from BUF
Other ways to fly to Las Vegas (LAS)
Related guides
Based on 718 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.