Historical on-time performance
Baltimore to Milwaukee
641 miData through Dec 2025Source: US DOT · BTS
Flights on BWI–MKE arrive on time 77% of the time over the last 12 months.
On-time rate77%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled1.1%of scheduled flights
based on 829 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time77%Medianon timep9045 minCancel1.1%Flights829
Why flights run late
Delay causes
- Airline44%
- Weather5%
- Air traffic (NAS)15%
- Late aircraft35%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly BWI → MKE
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 89% on time.
- Mornings89% on time · p90 15 min · 831 flights
- Middays79% on time · p90 30 min · 237 flights
- Afternoons71% on time · p90 50 min · 423 flights
- Evenings65% on time · p90 65 min · 341 flights
- Overnights59% on time · p90 65 min · 768 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 65% to 80% on time.
- Wednesdays80% on time · p90 35 min · 375 flights
- Tuesdays77% on time · p90 35 min · 375 flights
- Mondays76% on time · p90 40 min · 401 flights
- Thursdays74% on time · p90 45 min · 387 flights
- Fridays70% on time · p90 55 min · 406 flights
- Saturdays69% on time · p90 65 min · 289 flights
- Sundays65% on time · p90 60 min · 367 flights
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