Historical on-time performance
Chicago to Dallas
793 miData through Dec 2025Source: US DOT · BTS
Flights on MDW–DAL arrive on time 76% of the time over the last 12 months.
On-time rate76%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights
based on 2,223 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time76%Medianon timep9040 minCancel1.8%Flights2,223
Why flights run late
Delay causes
- Airline32%
- Weather2%
- Air traffic (NAS)21%
- Late aircraft45%
- 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 MDW → DAL
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 — 88% on time.
- Mornings88% on time · p90 15 min · 2,429 flights
- Middays78% on time · p90 30 min · 1,342 flights
- Afternoons71% on time · p90 40 min · 1,057 flights
- Evenings65% on time · p90 65 min · 1,152 flights
- Overnights61% on time · p90 70 min · 844 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 81% on time.
- Tuesdays81% on time · p90 30 min · 1,008 flights
- Saturdays79% on time · p90 35 min · 763 flights
- Mondays77% on time · p90 40 min · 1,033 flights
- Wednesdays75% on time · p90 30 min · 1,007 flights
- Fridays75% on time · p90 35 min · 1,024 flights
- Thursdays74% on time · p90 45 min · 1,012 flights
- Sundays72% on time · p90 40 min · 977 flights
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