Historical on-time performance
Baltimore to Grand Rapids
Flights on BWI–GRR arrive on time 78% of the time over the last 12 months.
based on 395 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 timep9040 minCancel0.5%Flights395
Why flights run late
Delay causes
- Airline30%
- Weather9%
- Air traffic (NAS)10%
- Late aircraft51%
- Security1%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 2 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 → GRR
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 71% to 86% on time.
- Mornings86% on time · p90 15 min · 134 flights · limited
- Middays83% on time · p90 20 min · 823 flights
- Afternoons71% on time · p90 40 min · 100 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 87% on time.
- Tuesdays87% on time · p90 15 min · 164 flights · limited
- Wednesdays85% on time · p90 30 min · 164 flights · limited
- Mondays80% on time · p90 30 min · 166 flights · limited
- Thursdays78% on time · p90 25 min · 166 flights · limited
- Fridays78% on time · p90 25 min · 165 flights · limited
- Sundays77% on time · p90 30 min · 173 flights · limited
- Saturdays75% on time · p90 35 min · 173 flights · limited
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