Historical on-time performance
Baltimore to Raleigh-durham
255 miData through May 2026Source: US DOT · BTS
Flights on BWI–RDU arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled2.3%of scheduled flights
based on 1,793 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time78%Medianon timep9030 minCancel2.3%Flights1,793
Why flights run late
Delay causes
- Airline27%
- Weather9%
- Air traffic (NAS)10%
- Late aircraft55%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline5%
- Weather71%
- Air traffic (NAS)24%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 42 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 BWI → 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 — 88% on time.
- Mornings88% on time · p90 15 min · 1,332 flights
- Middays85% on time · p90 20 min · 1,107 flights
- Afternoons72% on time · p90 40 min · 1,000 flights
- Evenings66% on time · p90 50 min · 1,088 flights
- Overnights63% on time · p90 70 min · 985 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 81% on time.
- Wednesdays81% on time · p90 25 min · 781 flights
- Tuesdays80% on time · p90 30 min · 789 flights
- Thursdays77% on time · p90 35 min · 860 flights
- Mondays77% on time · p90 30 min · 854 flights
- Saturdays74% on time · p90 40 min · 583 flights
- Fridays71% on time · p90 45 min · 859 flights
- Sundays70% on time · p90 50 min · 786 flights
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