Historical on-time performance
Phoenix to Buffalo
1,912 miData through Dec 2025Source: US DOT · BTS
Flights on PHX–BUF arrive on time 73% of the time over the last 12 months.
On-time rate73%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights
based on 262 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time73%Medianon timep9045 minCancel0.4%Flights262
Why flights run late
Delay causes
- Airline46%
- Weather0%
- Air traffic (NAS)11%
- Late aircraft38%
- Security5%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly PHX → BUF
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 69% to 82% on time.
- Mornings82% on time · p90 20 min · 144 flights · limited
- Middays76% on time · p90 30 min · 178 flights · limited
- Afternoons69% on time · p90 60 min · 271 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 62% to 84% on time.
- Saturdays84% on time · p90 25 min · 195 flights · limited
- Wednesdays80% on time · p90 40 min · 65 flights · limited
- Tuesdays75% on time · p90 25 min · 65 flights · limited
- Sundays71% on time · p90 55 min · 84 flights · limited
- Mondays65% on time · p90 40 min · 74 flights · limited
- Fridays63% on time · p90 70 min · 73 flights · limited
- Thursdays62% on time · p90 60 min · 71 flights · limited
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