Historical on-time performance
Dallas to Chicago
798 miData through Dec 2025Source: US DOT · BTS
Flights on DAL–ORD arrive on time 74% of the time over the last 12 months.
On-time rate74%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights
based on 836 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time74%Medianon timep9055 minCancel1.3%Flights836
Why flights run late
Delay causes
- Airline29%
- Weather4%
- Air traffic (NAS)26%
- Late aircraft42%
- 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 → ORD
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 10 min · 1,144 flights
- Middays76% on time · p90 30 min · 1,106 flights
- Overnights73% on time · p90 50 min · 149 flights · limited
- Afternoons72% on time · p90 45 min · 487 flights
- Evenings65% on time · p90 75 min · 671 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 84% on time.
- Saturdays84% on time · p90 30 min · 368 flights
- Mondays81% on time · p90 25 min · 557 flights
- Tuesdays80% on time · p90 35 min · 527 flights
- Sundays77% on time · p90 45 min · 475 flights
- Wednesdays77% on time · p90 45 min · 526 flights
- Thursdays75% on time · p90 45 min · 551 flights
- Fridays75% on time · p90 45 min · 553 flights
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