Historical on-time performance
Dallas to Chicago
793 miData through Dec 2025Source: US DOT · BTS
Flights on DAL–MDW arrive on time 73% of the time over the last 12 months.
On-time rate73%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights
based on 2,216 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time73%Medianon timep9050 minCancel1.8%Flights2,216
Why flights run late
Delay causes
- Airline29%
- Weather4%
- Air traffic (NAS)12%
- Late aircraft54%
- 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 DAL → MDW
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 10 min · 1,991 flights
- Middays78% on time · p90 35 min · 1,330 flights
- Afternoons71% on time · p90 45 min · 1,060 flights
- Evenings65% on time · p90 65 min · 1,463 flights
- Overnights63% on time · p90 65 min · 977 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 80% on time.
- Tuesdays80% on time · p90 30 min · 999 flights
- Saturdays79% on time · p90 35 min · 752 flights
- Wednesdays78% on time · p90 35 min · 998 flights
- Mondays75% on time · p90 40 min · 1,039 flights
- Fridays72% on time · p90 50 min · 1,032 flights
- Sundays72% on time · p90 50 min · 980 flights
- Thursdays71% on time · p90 45 min · 1,021 flights
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