Historical on-time performance
Baltimore to Buffalo
281 miData through Dec 2025Source: US DOT · BTS
Flights on BWI–BUF arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled1.5%of scheduled flights
based on 1,687 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time75%Medianon timep9035 minCancel1.5%Flights1,687
Why flights run late
Delay causes
- Airline35%
- Weather3%
- Air traffic (NAS)15%
- Late aircraft47%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly BWI → BUF
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 88% on time.
- Mornings88% on time · p90 15 min · 843 flights
- Middays82% on time · p90 25 min · 1,306 flights
- Afternoons70% on time · p90 40 min · 1,047 flights
- Evenings63% on time · p90 70 min · 864 flights
- Overnights53% on time · p90 60 min · 1,093 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 67% to 75% on time.
- Tuesdays75% on time · p90 30 min · 786 flights
- Wednesdays74% on time · p90 35 min · 790 flights
- Thursdays72% on time · p90 40 min · 775 flights
- Mondays72% on time · p90 40 min · 786 flights
- Fridays70% on time · p90 45 min · 783 flights
- Sundays68% on time · p90 45 min · 671 flights
- Saturdays67% on time · p90 55 min · 562 flights
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