Route
ORD → SMF
Chicago O'Hare International Airport Sacramento International Airport
How punctual is this route?
- On-time arrivals
- 67.3%
- Less than 15 minutes late
- Cancelled
- 1.6%
- Of scheduled flights
- Average delay when late
- 67 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,347
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 49%
- Airline (crew, maintenance, cleaning) 29%
- Air traffic control & airport 17%
- Extreme weather 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 79.5% | 117 |
| October 2025 | 72.1% | 123 |
| November 2025 | 65.9% | 91 |
| December 2025 | 57.3% | 75 |
| January 2026 | 64.2% | 67 |
| February 2026 | 75.0% | 56 |
| March 2026 | 60.0% | 113 |
| April 2026 | 63.0% | 150 |
| May 2026 | 76.5% | 151 |
| June 2026 | 56.4% | 137 |
| July 2026 | 71.9% | 141 |
| August 2026 | 64.0% | 126 |
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 | 991 | 69.4% | 1.4% | 68 min |
| American Airlines | 356 | 61.6% | 2.2% | 65 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA2145
20% late · 289 flights
-
UA1920
37% late · 279 flights
-
UA1828
40% late · 245 flights
-
AA2627
33% late · 64 flights
-
AA1094
56% late · 55 flights
-
UA1328
9% late · 55 flights
-
AA2446
50% late · 44 flights
-
AA2371
18% late · 33 flights
-
UA1710
29% late · 31 flights
-
AA2898
17% late · 30 flights
-
AA3042
71% late · 30 flights
-
AA903
38% late · 30 flights
-
AA1710
26% late · 28 flights
-
AA1906
46% late · 27 flights
-
UA1634
38% late · 24 flights
-
UA230
38% late · 21 flights
-
UA2369
5% late · 21 flights
-
UA734
48% late · 21 flights
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