Historical on-time performance
Tucson to Chicago
1,440 miData through Dec 2025Source: US DOT · BTS
Flights on TUS–MDW arrive on time 95% of the time over the last 12 months.
On-time rate95%arrived within 15 min
p90 delay5 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights
based on 281 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time95%Medianon timep905 minCancel0.4%Flights281
Why flights run late
Delay causes
- Airline77%
- Weather0%
- Air traffic (NAS)7%
- Late aircraft16%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly TUS → 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 — 96% on time.
- Mornings96% on time · p90 5 min · 573 flights
- Middays85% on time · p90 25 min · 128 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 87% to 96% on time.
- Wednesdays96% on time · p90 5 min · 79 flights · limited
- Thursdays96% on time · p90 10 min · 97 flights · limited
- Fridays96% on time · p90 on time · 96 flights · limited
- Tuesdays95% on time · p90 10 min · 80 flights · limited
- Mondays95% on time · p90 5 min · 97 flights · limited
- Saturdays92% on time · p90 5 min · 174 flights · limited
- Sundays87% on time · p90 15 min · 115 flights · limited
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