Phoenix (PHX) to Buffalo (BUF): On-Time Performance
Data through May 2026
Phoenix (PHX) to Buffalo (BUF) is a thinner route than most in this dataset — 245 departures over the past year, roughly 5 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 73% arrived on time, noticeably below the national average of 78%.
- On-time
- 73%
- arrived <15 min late
- Avg delay
- 15 min
- completed flights
- Cancelled
- 0.3%
- Flights/day
- 0.67
- last 12 months
- Duration
- 4h 2m
- scheduled
- Distance
- 1,912 mi
Monthly on-time trend
Best time to fly from PHX to BUF
Aim for departures around 8 a.m. (87% on-time); avoid 4 p.m. departures (64%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 65% | 21 min |
| Tuesday | 76% | 13 min |
| Wednesday | 80% | 13 min |
| Thursday | 62% | 22 min |
| Friday | 65% | 20 min |
| Saturdaybest | 85% | 7 min |
| Sunday | 72% | 16 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft32%
- Airline operations54%
- National airspace system12%
- Security2%
Frequently asked questions
- How often are flights from PHX to BUF delayed?
- 27% of PHX–BUF flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 15 minutes.
- What is the best time of day to fly from PHX to BUF?
- Departures around 8 a.m. have the best record (87% on-time), while departures around 4 p.m. have the worst (64%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from PHX to BUF?
- The scheduled PHX–BUF flight time averages 4h 2m over 1,912 miles. Actual arrival times vary — flights on this route land 15+ minutes late 27% of the time.
- How often are PHX to BUF flights cancelled?
- 0.3% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from PHX to BUF?
- July 2025 was the roughest month in this dataset, with only 52% of arrivals on time. The best was September 2025 at 91%. If your dates are flexible, that 39-point gap is worth planning around.
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Based on 596 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.