Delta Air Lines SLC to IAH on-time performance
Delta Air Lines nonstop flights from Salt Lake City to Houston · Aug 2025 – Jul 2026
On-time arrivals
83%
arrived < 15 min late
Cancelled
0.2%
2 flights
Avg arrival delay
14 min
78 min when late
Rank on route
#3 of 3
route average 86% on time
Key facts
- Delta Air Lines flights on SLC to IAH arrived on time 83% of the time in Aug 2025 – Jul 2026.
- 0.2% were cancelled, and 5% arrived an hour or more late.
- That ranks #3 of 3 airlines on this route, which averaged 86% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (61%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)61%
- Air traffic control & airport congestion17%
- Late-arriving aircraft14%
- Extreme weather8%
- Security0%
Other airlines on SLC to IAH
- United Airlines88% on time · 9 min avg delay
- SkyWest Airlines87% on time · 8 min avg delay
Full SLC to IAH comparison →
Delta Air Lines on-time record across all routes →
1,012 Delta Air Lines flights tracked on this route; 2 cancelled, 3 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.