Route · SLC → SFO · 2020–2025 BTS data
Salt Lake City to San Francisco
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SLC to SFO (Salt Lake City to San Francisco) ranks #344 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 80%
- On-time
- +1 pts
- vs US avg
- 69 min
- Delay when late
- 19,871
- Flights
- #344 of 4927
- Corpus placement
Cancelled
0.6%
Best Month
Jan 2025 88%
Worst Month
Mar 2024 50%
Distance
599 mi
Carriers
17
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 295 | 79 | 5 | 0 | DL,F9,UA,OO |
| Nov 2025 | 265 | 71 | 6 | 1 | OO,UA,DL,F9 |
| Oct 2025 | 283 | 84 | 0 | 0 | DL,OO,UA,F9 |
| Sep 2025 | 250 | 49 | 0 | 0 | UA,OO,DL,F9 |
| Aug 2025 | 295 | 54 | 1 | 1 | OO,F9,UA,DL |
| Jul 2025 | 314 | 73 | 2 | 0 | OO,UA,DL,F9 |
| Jun 2025 | 306 | 67 | 1 | 0 | OO,UA,DL,F9 |
| May 2025 | 327 | 47 | 1 | 1 | DL,OO,UA,F9 |
| Apr 2025 | 328 | 63 | 0 | 0 | DL,F9,OO,UA |
| Mar 2025 | 320 | 88 | 1 | 1 | DL,OO,UA,F9 |
| Feb 2025 | 284 | 78 | 3 | 1 | DL,OO,UA,F9 |
| Jan 2025 | 297 | 37 | 0 | 0 | DL,OO,UA,F9 |
| Dec 2024 | 307 | 78 | 0 | 1 | DL,F9,OO,UA |
| Nov 2024 | 276 | 80 | 2 | 0 | OO,UA,DL,F9 |
| Oct 2024 | 288 | 44 | 0 | 0 | UA,OO,DL,F9 |
| Sep 2024 | 275 | 52 | 0 | 0 | OO,UA,DL,F9 |
| Aug 2024 | 289 | 75 | 2 | 0 | DL,F9,OO,UA |
| Jul 2024 | 289 | 57 | 9 | 1 | DL,F9,OO,UA |
| Jun 2024 | 264 | 94 | 0 | 0 | DL,F9,OO,UA |
| May 2024 | 289 | 135 | 2 | 0 | DL,F9,OO,UA |
| Apr 2024 | 287 | 134 | 0 | 2 | DL,F9,OO,UA |
| Mar 2024 | 274 | 137 | 1 | 0 | DL,OO,UA |
| Feb 2024 | 265 | 122 | 8 | 0 | DL,OO,UA |
| Jan 2024 | 290 | 84 | 1 | 0 | DL,OO,UA |
SLC–SFO seasonal on-time pattern
Best: October (85.3%) · weakest: December (74.4%)
Strongest calendar month
October
85.3% on-time · ~282 flights/mo
Busiest calendar month
January
~301 flights/mo avg
Weakest calendar month
December
74.4% on-time · ~292 flights/mo
Cancellation Rate
0.6%
45 of 6,957 flights
Diversion Rate
0.1%
9 of 6,957 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SLC - Salt Lake City
Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.
SLC on-time profileSFO - San Francisco
Full on-time, delay-cause, and seasonal performance for San Francisco, CA.
SFO on-time profileCompare the two airports
See SLC and SFO side by side on delays, cancellations, and reliability.
Compare SLC vs SFOOrigin-hub reliability standing
Mid-pack among SLC departures
From SLC, this corridor sits with 31 other 75–85% on-time routes out of 85 tracked departures, not the hub's reliability leaders (54 at ≥85%) and not the softest ( 0 below 75%). Destination: San Francisco · fleet on-time rank #3161 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to SLC–SFO.
Routes with a similar on-time rate
What the Data Says About SLC to SFO
19,871 tracked flights put the SLC to SFO pairing (Salt Lake City to San Francisco) at a 80% on-time rate, squarely in line with the wider network. Delays that do occur run 69.3 minutes on average. Across the 599-mile route and its 17 carriers, the trailing 24 months show 0.6% cancelled and 0.1% diverted (6,957 flights sampled).
The monthly split is wide on this route: Jan 2025 posted the strongest performance at 88% on-time, while Mar 2024 came in at just 50% - a 38-point swing worth factoring into travel timing.
On the multi-year calendar, SLC–SFO peaks in October at 85.3% on-time while January carries the heaviest traffic (~301 flights per month) ; the softest month is December at 74.4%, a 10.9-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does SLC to SFO rank among US routes by traffic? ▼
How often are flights delayed from SLC to SFO? ▼
What is the cancellation rate for SLC to SFO? ▼
How far is the flight from SLC to SFO? ▼
When is the best time to fly from SLC to SFO? ▼
Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using SLC–SFO data
SLC–SFO is mid-pack at 80% on-time; month and carrier mix move more than the corridor headline.
- Compare SLC and SFO airport profiles: delay causes and top routes differ even on the same corridor. SLC airport
- If your dates flex, October (85.3% on-time) beats December (74.4%) on this corridor. Seasonal chart
- 4 other routes post a similar 80% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.