Historical on-time performance
Boston to Pittsburgh
496 miData through May 2026Source: US DOT · BTS
Flights on BOS–PIT arrive on time 77% of the time over the last 12 months.
On-time rate77%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled2.2%of scheduled flights
based on 2,140 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysbestOn-time78%Medianon timep9050 minCancel2.3%Flights1,133
- JetBlue AirwaysOn-time74%Medianon timep9060 minCancel2.2%Flights1,007
Why flights run late
Delay causes
- Airline32%
- Weather2%
- Air traffic (NAS)14%
- Late aircraft53%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline21%
- Weather29%
- Air traffic (NAS)50%
- Security0%
Most cancellations here are attributed to Air traffic (NAS). Shares are among 48 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 BOS → PIT
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 — 88% on time.
- Mornings88% on time · p90 15 min · 1,845 flights
- Middays84% on time · p90 25 min · 897 flights
- Afternoons74% on time · p90 55 min · 1,497 flights
- Overnights68% on time · p90 80 min · 1,139 flights
- Evenings67% on time · p90 75 min · 916 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 84% on time.
- Wednesdays84% on time · p90 35 min · 908 flights
- Tuesdays83% on time · p90 30 min · 870 flights
- Saturdays80% on time · p90 50 min · 704 flights
- Mondays76% on time · p90 50 min · 963 flights
- Thursdays75% on time · p90 55 min · 966 flights
- Fridays74% on time · p90 65 min · 969 flights
- Sundays73% on time · p90 60 min · 915 flights
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