Historical on-time performance
Buffalo to Baltimore
281 miData through May 2026Source: US DOT · BTS
Flights on BUF–BWI arrive on time 84% of the time over the last 12 months.
On-time rate84%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled1.6%of scheduled flights
based on 1,732 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time84%Medianon timep9020 minCancel1.6%Flights1,732
Why flights run late
Delay causes
- Airline24%
- Weather1%
- Air traffic (NAS)28%
- Late aircraft47%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline4%
- Weather96%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 27 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 BUF → BWI
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 — 93% on time.
- Mornings93% on time · p90 5 min · 1,992 flights
- Middays87% on time · p90 15 min · 1,377 flights
- Afternoons76% on time · p90 35 min · 1,066 flights
- Evenings69% on time · p90 50 min · 700 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 82% to 89% on time.
- Tuesdays89% on time · p90 15 min · 769 flights
- Wednesdays88% on time · p90 15 min · 765 flights
- Saturdays87% on time · p90 15 min · 595 flights
- Fridays83% on time · p90 25 min · 783 flights
- Sundays82% on time · p90 25 min · 699 flights
- Mondays82% on time · p90 25 min · 779 flights
- Thursdays82% on time · p90 25 min · 773 flights
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