Buffalo (BUF) to Phoenix (PHX): On-Time Performance
Data through May 2026
Buffalo (BUF) to Phoenix (PHX) 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, 77% arrived on time.
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 0.3%
- Flights/day
- 0.67
- last 12 months
- Duration
- 4h 48m
- scheduled
- Distance
- 1,912 mi
Monthly on-time trend
Best time to fly from BUF to PHX
Aim for departures around 7 a.m. (91% on-time); avoid 7 p.m. departures (62%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 75% | 17 min |
| Tuesday | 79% | 10 min |
| Wednesday | 71% | 17 min |
| Thursday | 78% | 10 min |
| Friday | 75% | 12 min |
| Saturday | 78% | 11 min |
| Sundaybest | 79% | 8 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft57%
- Airline operations19%
- National airspace system24%
- Weather1%
Frequently asked questions
- How often are flights from BUF to PHX delayed?
- 23% of BUF–PHX 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 12 minutes.
- What is the best time of day to fly from BUF to PHX?
- Departures around 7 a.m. have the best record (91% on-time), while departures around 7 p.m. have the worst (62%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BUF to PHX?
- The scheduled BUF–PHX flight time averages 4h 48m over 1,912 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
- How often are BUF to PHX 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 BUF to PHX?
- April 2025 was the roughest month in this dataset, with only 56% of arrivals on time. The best was September 2025 at 95%. 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.