Historical on-time performance
Baltimore to Milwaukee
641 miData through May 2026Source: US DOT · BTS
Flights on BWI–MKE arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled1.6%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-time75%Medianon timep9045 minCancel1.6%Flights829
Why flights run late
Delay causes
- Airline44%
- Weather5%
- Air traffic (NAS)16%
- Late aircraft35%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline8%
- Weather85%
- Air traffic (NAS)8%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 13 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 → MKE
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 · 754 flights
- Middays81% on time · p90 30 min · 335 flights
- Afternoons72% on time · p90 55 min · 419 flights
- Evenings64% on time · p90 65 min · 281 flights
- Overnights61% on time · p90 60 min · 780 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 65% to 79% on time.
- Wednesdays79% on time · p90 35 min · 360 flights
- Tuesdays78% on time · p90 35 min · 361 flights
- Thursdays75% on time · p90 45 min · 383 flights
- Mondays75% on time · p90 40 min · 393 flights
- Saturdays72% on time · p90 50 min · 292 flights
- Fridays71% on time · p90 55 min · 403 flights
- Sundays65% on time · p90 60 min · 377 flights
Keep exploring