Historical on-time performance
Boston to Raleigh-durham
612 miData through May 2026Source: US DOT · BTS
Flights on BOS–RDU arrive on time 74% of the time over the last 12 months.
On-time rate74%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled2.1%of scheduled flights
based on 2,563 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysOn-time77%Medianon timep9035 minCancel0.0%Flights39
- Delta Air LinesbestOn-time76%Medianon timep9070 minCancel2.1%Flights1,439
- JetBlue AirwaysOn-time72%Medianon timep9060 minCancel2.2%Flights1,085
Why flights run late
Delay causes
- Airline36%
- Weather3%
- Air traffic (NAS)12%
- Late aircraft49%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline30%
- Weather44%
- Air traffic (NAS)26%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 54 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 → RDU
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 — 85% on time.
- Mornings85% on time · p90 25 min · 2,679 flights
- Middays80% on time · p90 45 min · 2,332 flights
- Afternoons73% on time · p90 60 min · 1,193 flights
- Evenings63% on time · p90 100 min · 1,794 flights
- Overnights62% on time · p90 95 min · 786 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 81% on time.
- Wednesdays81% on time · p90 35 min · 1,209 flights
- Tuesdays80% on time · p90 45 min · 1,192 flights
- Saturdays78% on time · p90 50 min · 1,005 flights
- Thursdays75% on time · p90 65 min · 1,327 flights
- Mondays74% on time · p90 65 min · 1,353 flights
- Fridays73% on time · p90 75 min · 1,369 flights
- Sundays71% on time · p90 75 min · 1,329 flights
Keep exploring