Historical on-time performance
Atlanta to Buffalo
Flights on ATL–BUF arrive on time 77% of the time over the last 12 months.
based on 1,306 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.
- Delta Air LinesOn-time78%Medianon timep9035 minCancel2.1%Flights1,245
- Frontier AirlinesOn-time74%Medianon timep9040 minCancel0.0%Flights61
Why flights run late
Delay causes
- Airline44%
- Weather9%
- Air traffic (NAS)17%
- Late aircraft29%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline65%
- Weather35%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 26 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly ATL → BUF
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 86% on time.
- Mornings86% on time · p90 20 min · 1,205 flights
- Overnights75% on time · p90 45 min · 1,075 flights
- Middays75% on time · p90 40 min · 713 flights
- Afternoons73% on time · p90 50 min · 1,092 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 83% on time.
- Wednesdays83% on time · p90 25 min · 541 flights
- Tuesdays80% on time · p90 45 min · 562 flights
- Thursdays79% on time · p90 35 min · 641 flights
- Mondays76% on time · p90 45 min · 613 flights
- Fridays76% on time · p90 45 min · 617 flights
- Saturdays76% on time · p90 35 min · 533 flights
- Sundays72% on time · p90 50 min · 635 flights
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