Historical on-time performance
Chicago to Tucson
1,437 miData through May 2026Source: US DOT · BTS
Flights on ORD–TUS arrive on time 67% of the time over the last 12 months.
On-time rate67%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights
based on 875 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesbestOn-time71%Medianon timep9050 minCancel1.6%Flights450
- American AirlinesOn-time63%Medianon timep9090 minCancel2.1%Flights425
Why flights run late
Delay causes
- Airline38%
- Weather6%
- Air traffic (NAS)15%
- Late aircraft40%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather94%
- Air traffic (NAS)6%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 16 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 ORD → TUS
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 — 81% on time.
- Mornings81% on time · p90 30 min · 1,554 flights
- Middays75% on time · p90 50 min · 378 flights
- Evenings70% on time · p90 45 min · 439 flights
- Overnights59% on time · p90 80 min · 575 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 78% on time.
- Tuesdays78% on time · p90 45 min · 389 flights
- Sundays77% on time · p90 35 min · 443 flights
- Wednesdays76% on time · p90 45 min · 412 flights
- Saturdays74% on time · p90 50 min · 420 flights
- Thursdays73% on time · p90 40 min · 436 flights
- Mondays72% on time · p90 60 min · 417 flights
- Fridays71% on time · p90 50 min · 442 flights
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