Delta Air Lines LAX to ORD on-time performance
Delta Air Lines nonstop flights from Los Angeles to Chicago · Aug 2025 – Jul 2026
On-time arrivals
72%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
21 min
74 min when late
Rank on route
#4 of 5
route average 76% on time
Key facts
- Delta Air Lines flights on LAX to ORD arrived on time 72% of the time in Aug 2025 – Jul 2026.
- 0% were cancelled, and 11% arrived an hour or more late.
- That ranks #4 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)35%
- Late-arriving aircraft14%
- Extreme weather0%
- Security0%
Other airlines on LAX to ORD
- United Airlines80% on time · 15 min avg delay
- American Airlines73% on time · 27 min avg delay
- Frontier Airlines61% on time · 57 min avg delay
- Spirit Airlines78% on time · 19 min avg delay
Full LAX to ORD comparison →
Delta Air Lines on-time record across all routes →
151 Delta Air Lines flights tracked on this route; 0 cancelled, 6 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.