Route
IAH → TUS
George Bush Intercontinental Airport Tucson International Airport
937 miles
Return route TUS → IAH →
How punctual is this route?
- On-time arrivals
- 83.4%
- Less than 15 minutes late
- Cancelled
- 1.8%
- Of scheduled flights
- Average delay when late
- 69 min
- Flights arriving 15+ minutes late
- Flights tracked
- 227
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 50%
- Airline (crew, maintenance, cleaning) 33%
- Air traffic control & airport 9%
- Extreme weather 7%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 63.6% | 11 |
| October 2025 | 75.0% | 24 |
| January 2026 | 89.7% | 30 |
| February 2026 | 89.4% | 47 |
| March 2026 | 87.5% | 35 |
| April 2026 | 82.1% | 39 |
| May 2026 | 80.0% | 20 |
| August 2026 | 81.0% | 21 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| United Airlines | 197 | 83.4% | 2.0% | 67 min |
| SkyWest Airlines | 30 | 83.3% | 0.0% | 79 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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