Route Reliability
San Francisco → Salt Lake City
SFO–SLC · 599 miles · San Francisco International Airport to Salt Lake City International Airport
- 79%
- Arrive within 15 minutes
- 7 min
- Average arrival delay
- 0.8%
- Cancelled
- 3,505
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Delta Air Lines80%1,720 flights
- 2.United Airlines79%1,547 flights
- 3.Frontier Airlines69%159 flights
Not enough history to rank: Alaska Airlines (79 flights). We rank airlines only after 100 flights on the route.
What the data says
Morning-you made the right choice.
SFO–SLC flights departing between 3–6 AM arrived on time 97% of the time, versus 70% between 12–3 PM.
Skip Monday if you can.
SFO–SLC flights arrived on time 85% of the time on Saturdays. On Mondays: 74%.
Delta Air Lines runs this route best.
Delta Air Lines arrived on time 80% of the time on this route; Frontier Airlines managed 69%.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon74%(525 flights)
- Tue82%(460 flights)
- Wed81%(475 flights)
- Thu78%(517 flights)
- Fri76%(529 flights)
- Sat85%(429 flights)
- Sun79%(541 flights)
- 3–6 AM97%(257 flights)
- 6–9 AM91%(394 flights)
- 9 AM–12 PM82%(566 flights)
- 12–3 PM70%(758 flights)
- 3–6 PM72%(776 flights)
- 6–9 PM81%(725 flights)
Jun 77% → May 67% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 77% | 304 |
| July 2025 | 77% | 314 |
| August 2025 | 85% | 293 |
| September 2025 | 88% | 250 |
| October 2025 | 82% | 284 |
| November 2025 | 82% | 259 |
| December 2025 | 72% | 291 |
| January 2026 | 83% | 277 |
| February 2026 | 78% | 290 |
| March 2026 | 89% | 321 |
| April 2026 | 72% | 290 |
| May 2026 | 67% | 303 |
Same trip, other airports
Keep nerding
Based on 3,505 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.