Route Reliability
Chicago → Tucson
ORD–TUS · 1,437 miles · Chicago O'Hare International Airport to Tucson International Airport
- 70%
- Arrive within 15 minutes
- 16 min
- Average arrival delay
- 1.5%
- Cancelled
- 1,041
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines74%539 flights
- 2.American Airlines67%502 flights
What the data says
The 12–3 PM departure wins.
ORD–TUS flights departing between 12–3 PM arrived on time 91% of the time, versus 46% between 9 PM–12 AM.
Friday is doing you no favors.
ORD–TUS flights arrived on time 79% of the time on Tuesdays and just 62% on Fridays. That gap is worth planning around.
United Airlines runs this route best.
United Airlines arrived on time 74% of the time on this route; American Airlines managed 67%.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon64%(148 flights)
- Tue79%(143 flights)
- Wed69%(143 flights)
- Thu75%(144 flights)
- Fri62%(146 flights)
- Sat69%(148 flights)
- Sun75%(149 flights)
- 6–9 AM79%(80 flights)
- 9 AM–12 PM77%(589 flights)
- 12–3 PM91%(11 flights)
- 3–6 PM77%(26 flights)
- 6–9 PM56%(256 flights)
- 9 PM–12 AM46%(59 flights)
Jun 73% → May 72% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 73% | 89 |
| July 2025 | 57% | 88 |
| August 2025 | 85% | 65 |
| September 2025 | 85% | 60 |
| October 2025 | 68% | 68 |
| November 2025 | 84% | 87 |
| December 2025 | 67% | 90 |
| January 2026 | 64% | 83 |
| February 2026 | 70% | 80 |
| March 2026 | 77% | 91 |
| April 2026 | 54% | 110 |
| May 2026 | 72% | 110 |
Same trip, other airports
Keep nerding
Based on 1,041 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.