Historical on-time performance
Chicago to Dallas
793 miData through May 2026Source: 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)
Cancelled1.9%of scheduled flights
based on 2,155 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 minCancel1.9%Flights2,155
Why flights run late
Delay causes
- Airline34%
- Weather3%
- Air traffic (NAS)19%
- Late aircraft43%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline13%
- Weather83%
- Air traffic (NAS)5%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 40 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 MDW → DAL
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 — 89% on time.
- Mornings89% on time · p90 10 min · 2,363 flights
- Middays78% on time · p90 30 min · 1,365 flights
- Afternoons72% on time · p90 40 min · 1,008 flights
- Evenings65% on time · p90 65 min · 1,112 flights
- Overnights61% on time · p90 75 min · 833 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 82% on time.
- Tuesdays82% on time · p90 30 min · 974 flights
- Wednesdays78% on time · p90 30 min · 973 flights
- Saturdays78% on time · p90 35 min · 753 flights
- Mondays77% on time · p90 50 min · 1,002 flights
- Fridays76% on time · p90 35 min · 1,009 flights
- Thursdays76% on time · p90 40 min · 995 flights
- Sundays71% on time · p90 45 min · 975 flights
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