Route
ORD → SLC
Chicago O'Hare International Airport Salt Lake City International Airport
How punctual is this route?
- On-time arrivals
- 68.6%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 85 min
- Flights arriving 15+ minutes late
- Flights tracked
- 3,245
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 39%
- Airline (crew, maintenance, cleaning) 37%
- Air traffic control & airport 14%
- Extreme weather 10%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 79.0% | 244 |
| October 2025 | 71.6% | 265 |
| November 2025 | 72.2% | 240 |
| December 2025 | 55.6% | 241 |
| January 2026 | 66.5% | 238 |
| February 2026 | 75.4% | 284 |
| March 2026 | 64.8% | 316 |
| April 2026 | 71.3% | 267 |
| May 2026 | 72.3% | 284 |
| June 2026 | 67.0% | 290 |
| July 2026 | 72.2% | 275 |
| August 2026 | 56.4% | 301 |
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 | 1,073 | 71.4% | 1.1% | 70 min |
| American Airlines | 1,045 | 64.0% | 1.9% | 74 min |
| Delta Air Lines | 1,014 | 70.4% | 1.2% | 114 min |
| SkyWest Airlines | 77 | 71.1% | 1.3% | 97 min |
| Envoy Air | 36 | 61.1% | 0.0% | 51 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL2231
20% late · 365 flights
-
UA1710
44% late · 222 flights
-
UA1972
17% late · 180 flights
-
DL2377
34% late · 159 flights
-
UA466
22% late · 130 flights
-
DL2247
28% late · 116 flights
-
DL1739
32% late · 108 flights
-
UA1955
25% late · 103 flights
-
DL2348
27% late · 94 flights
-
AA668
46% late · 91 flights
-
AA2616
18% late · 76 flights
-
AA3133
45% late · 76 flights
-
UA704
33% late · 76 flights
-
DL2249
41% late · 74 flights
-
DL2376
58% late · 74 flights
-
AA2743
18% late · 60 flights
-
AA2971
53% late · 54 flights
-
UA2138
7% late · 45 flights
-
AA2627
34% late · 44 flights
-
AA2862
27% late · 44 flights
-
AA3125
33% late · 44 flights
-
AA2596
38% late · 42 flights
-
MQ3841
39% late · 36 flights
-
OO5953
29% late · 35 flights
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