Historical on-time performance
Raleigh-durham to Baltimore
255 miData through May 2026Source: US DOT · BTS
Flights on RDU–BWI arrive on time 83% of the time over the last 12 months.
On-time rate83%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled2.4%of scheduled flights
based on 1,790 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time83%Medianon timep9025 minCancel2.4%Flights1,790
Why flights run late
Delay causes
- Airline20%
- Weather1%
- Air traffic (NAS)25%
- Late aircraft53%
- Security1%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline14%
- Weather65%
- Air traffic (NAS)21%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 43 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 RDU → 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 — 94% on time.
- Mornings94% on time · p90 on time · 1,518 flights
- Middays89% on time · p90 15 min · 1,576 flights
- Afternoons79% on time · p90 30 min · 991 flights
- Evenings69% on time · p90 45 min · 1,072 flights
- Overnights63% on time · p90 65 min · 341 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 80% to 88% on time.
- Saturdays88% on time · p90 15 min · 588 flights
- Wednesdays86% on time · p90 20 min · 782 flights
- Tuesdays85% on time · p90 20 min · 786 flights
- Thursdays82% on time · p90 25 min · 854 flights
- Fridays81% on time · p90 25 min · 854 flights
- Mondays81% on time · p90 25 min · 846 flights
- Sundays80% on time · p90 30 min · 788 flights
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