Route
SFO → SLC
San Francisco International Airport Salt Lake City International Airport
Alerts at SFO and SLC
How punctual is this route?
- On-time arrivals
- 75.0%
- Less than 15 minutes late
- Cancelled
- 1.0%
- Of scheduled flights
- Average delay when late
- 73 min
- Flights arriving 15+ minutes late
- Flights tracked
- 3,431
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 51%
- Airline (crew, maintenance, cleaning) 30%
- Air traffic control & airport 17%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 87.6% | 250 |
| October 2025 | 81.7% | 284 |
| November 2025 | 81.1% | 265 |
| December 2025 | 71.5% | 294 |
| January 2026 | 82.5% | 270 |
| February 2026 | 77.8% | 285 |
| March 2026 | 88.2% | 324 |
| April 2026 | 71.0% | 294 |
| May 2026 | 65.7% | 306 |
| June 2026 | 61.8% | 291 |
| July 2026 | 69.3% | 296 |
| August 2026 | 63.5% | 272 |
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 |
|---|---|---|---|---|
| Delta Air Lines | 1,714 | 75.7% | 0.9% | 77 min |
| SkyWest Airlines | 1,008 | 75.9% | 1.4% | 72 min |
| United Airlines | 503 | 74.7% | 0.2% | 61 min |
| Frontier Airlines | 206 | 65.8% | 1.9% | 79 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL1331
4% late · 365 flights
-
DL920
24% late · 361 flights
-
DL1088
35% late · 358 flights
-
DL902
35% late · 287 flights
-
OO4802
27% late · 208 flights
-
OO5590
20% late · 184 flights
-
OO4805
35% late · 174 flights
-
OO5753
34% late · 164 flights
-
F91504
28% late · 109 flights
-
F93394
41% late · 97 flights
-
UA2027
12% late · 82 flights
-
DL2166
15% late · 75 flights
-
UA2017
35% late · 75 flights
-
UA543
47% late · 75 flights
-
DL2652
25% late · 67 flights
-
UA394
27% late · 55 flights
-
UA2437
11% late · 53 flights
-
DL2762
22% late · 52 flights
-
OO5605
9% late · 47 flights
-
UA1825
13% late · 47 flights
-
OO5405
6% late · 35 flights
-
OO3272
21% late · 34 flights
-
UA2034
16% late · 31 flights
-
OO5592
11% late · 27 flights
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