Historical on-time performance
Washington to Milwaukee
634 miData through Dec 2025Source: US DOT · BTS
Flights on DCA–MKE arrive on time 71% of the time over the last 12 months.
On-time rate71%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled4.7%of scheduled flights
based on 1,330 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesbestOn-time81%Medianon timep9030 minCancel1.5%Flights682
- PSA AirlinesOn-time60%Medianon timep9085 minCancel8.0%Flights648
Why flights run late
Delay causes
- Airline30%
- Weather7%
- Air traffic (NAS)13%
- Late aircraft50%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly DCA → 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 — 91% on time.
- Mornings91% on time · p90 5 min · 551 flights
- Middays83% on time · p90 25 min · 1,235 flights
- Afternoons72% on time · p90 40 min · 915 flights
- Evenings63% on time · p90 70 min · 396 flights
- Overnights62% on time · p90 75 min · 431 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 80% on time.
- Saturdays80% on time · p90 40 min · 321 flights
- Tuesdays79% on time · p90 30 min · 541 flights
- Mondays78% on time · p90 40 min · 540 flights
- Fridays76% on time · p90 35 min · 534 flights
- Wednesdays76% on time · p90 60 min · 542 flights
- Thursdays75% on time · p90 55 min · 530 flights
- Sundays73% on time · p90 55 min · 520 flights
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