Delta Air Lines SLC to ORD on-time performance
Delta Air Lines nonstop flights from Salt Lake City to Chicago · Aug 2025 – Jul 2026
On-time arrivals
77%
arrived < 15 min late
Cancelled
0.9%
9 flights
Avg arrival delay
17 min
70 min when late
Rank on route
#1 of 5
route average 76% on time
Key facts
- Delta Air Lines flights on SLC to ORD arrived on time 77% of the time in Aug 2025 – Jul 2026.
- 0.9% were cancelled, and 8% arrived an hour or more late.
- That ranks #1 of 5 airlines on this route, which averaged 76% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (51%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion51%
- Airline (crew, maintenance, cleaning, fueling)34%
- Late-arriving aircraft13%
- Extreme weather1%
- Security0%
Other airlines on SLC to ORD
- United Airlines75% on time · 23 min avg delay
- American Airlines76% on time · 26 min avg delay
- SkyWest Airlines73% on time · 28 min avg delay
- Envoy Air61% on time · 32 min avg delay
Full SLC to ORD comparison →
Delta Air Lines on-time record across all routes →
1,012 Delta Air Lines flights tracked on this route; 9 cancelled, 11 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.