Delta Air Lines IAH to SLC on-time performance
Delta Air Lines nonstop flights from Houston to Salt Lake City · Aug 2025 – Jul 2026
On-time arrivals
83%
arrived < 15 min late
Cancelled
0.3%
3 flights
Avg arrival delay
16 min
90 min when late
Rank on route
#2 of 3
route average 83% on time
Key facts
- Delta Air Lines flights on IAH to SLC arrived on time 83% of the time in Aug 2025 – Jul 2026.
- 0.3% were cancelled, and 6% arrived an hour or more late.
- That ranks #2 of 3 airlines on this route, which averaged 83% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (54%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)54%
- Late-arriving aircraft33%
- Air traffic control & airport congestion9%
- Extreme weather4%
- Security0%
Other airlines on IAH to SLC
- United Airlines84% on time · 11 min avg delay
- SkyWest Airlines77% on time · 15 min avg delay
Full IAH to SLC comparison →
Delta Air Lines on-time record across all routes →
1,012 Delta Air Lines flights tracked on this route; 3 cancelled, 4 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.