Route
SLC → SFO
Salt Lake City International Airport San Francisco International Airport
Alerts at SLC and SFO
How punctual is this route?
- On-time arrivals
- 63.4%
- Less than 15 minutes late
- Cancelled
- 1.0%
- Of scheduled flights
- Average delay when late
- 66 min
- Flights arriving 15+ minutes late
- Flights tracked
- 3,433
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 55%
- Airline (crew, maintenance, cleaning) 24%
- Late-arriving aircraft 20%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 80.4% | 250 |
| October 2025 | 70.3% | 283 |
| November 2025 | 72.5% | 265 |
| December 2025 | 72.8% | 295 |
| January 2026 | 78.4% | 269 |
| February 2026 | 75.4% | 284 |
| March 2026 | 83.9% | 325 |
| April 2026 | 49.8% | 294 |
| May 2026 | 46.1% | 307 |
| June 2026 | 42.4% | 291 |
| July 2026 | 39.7% | 296 |
| August 2026 | 52.9% | 274 |
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 | 1,712 | 61.6% | 0.9% | 55 min |
| SkyWest Airlines | 1,011 | 63.9% | 1.2% | 77 min |
| United Airlines | 504 | 68.2% | 0.2% | 72 min |
| Frontier Airlines | 206 | 65.2% | 2.4% | 99 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL902
40% late · 365 flights
-
DL1088
37% late · 364 flights
-
DL920
36% late · 361 flights
-
DL1091
35% late · 330 flights
-
DL2762
47% late · 266 flights
-
OO4763
8% late · 218 flights
-
F93393
35% late · 206 flights
-
OO5732
26% late · 203 flights
-
OO5970
73% late · 180 flights
-
OO5457
50% late · 148 flights
-
OO5736
29% late · 108 flights
-
UA1955
45% late · 75 flights
-
UA2097
88% late · 75 flights
-
UA1581
26% late · 58 flights
-
UA646
24% late · 55 flights
-
UA1515
6% late · 53 flights
-
UA2101
3% late · 37 flights
-
OO3271
24% late · 34 flights
-
UA2181
18% late · 34 flights
-
UA2166
23% late · 31 flights
-
OO5594
52% late · 27 flights
-
DL1085
29% late · 25 flights
-
UA1507
12% late · 24 flights
-
OO5770
76% late · 21 flights
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