Route · SUN → SFO · 2020–2025 BTS data
Sun Valley/Hailey/Ketchum to San Francisco
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SUN to SFO (Sun Valley/Hailey/Ketchum to San Francisco) ranks #4734 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 71.4%
- On-time
- -7.6 pts
- vs US avg
- 92 min
- Delay when late
- 704
- Flights
- #4734 of 4927
- Corpus placement
Cancelled
2.7%
Best Month
N/A
Worst Month
N/A
Distance
587 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 33 | 14 | 0 | 0 | OO |
| Aug 2025 | 34 | 7 | 0 | 0 | OO |
| Jul 2025 | 34 | 21 | 0 | 0 | OO |
| Mar 2025 | 39 | 8 | 0 | 1 | OO |
| Feb 2025 | 36 | 12 | 1 | 0 | OO |
| Jan 2025 | 42 | 11 | 1 | 0 | OO |
| Dec 2024 | 31 | 14 | 1 | 0 | OO |
| Aug 2024 | 31 | 13 | 0 | 0 | OO |
| Jul 2024 | 31 | 10 | 0 | 0 | OO |
| Mar 2024 | 39 | 19 | 1 | 0 | OO |
| Feb 2024 | 37 | 16 | 2 | 0 | OO |
| Jan 2024 | 39 | 12 | 0 | 0 | OO |
| Aug 2023 | 31 | 6 | 0 | 0 | OO |
| Jul 2023 | 31 | 7 | 0 | 0 | OO |
| Jan 2023 | 31 | 12 | 2 | 0 | OO |
| Aug 2022 | 31 | 1 | 0 | 0 | OO |
| Jul 2022 | 31 | 3 | 1 | 0 | OO |
| Jan 2022 | 31 | 7 | 2 | 0 | OO |
| Aug 2021 | 31 | 0 | 0 | 0 | OO |
| Jul 2021 | 30 | 0 | 0 | 0 | OO |
| Jan 2020 | 31 | 8 | 8 | 0 | OO |
SUN–SFO seasonal on-time pattern
Best: August (82.9%) · weakest: December (56.3%)
Strongest calendar month
August
82.9% on-time · ~32 flights/mo
Busiest calendar month
March
~39 flights/mo avg
Weakest calendar month
December
56.3% on-time · ~32 flights/mo
Cancellation Rate
2.7%
19 of 704 flights
Diversion Rate
0.1%
1 of 704 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SUN - Sun Valley/Hailey/Ketchum
Full on-time, delay-cause, and seasonal performance for Sun Valley/Hailey/Ketchum, ID.
SUN 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 SUN and SFO side by side on delays, cancellations, and reliability.
Compare SUN vs SFOOrigin-hub reliability standing
Softer reliability from SUN
Among 4 routes leaving SUN, only 1 (including this one) clear below 75% on-time, while 2 stay ≥85% and 1 sit mid-band. Travelers comparing SUN options should weigh this 71.4% print against those peers · fleet on-time rank #4789 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to SUN–SFO.
Routes with a similar on-time rate
What the Data Says About SUN to SFO
On-time performance on the SUN to SFO pairing (Sun Valley/Hailey/Ketchum to San Francisco) trails a chunk of the network: 71.4% of 704 tracked flights arrived on schedule, with a 92.2-minute average delay on the ones that ran late. The route spans about 587 miles across 1 carrier. Cancellations over the trailing 24 months hit 2.7% (19 of 704 flights), with 0.1% diverted.
Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.
On the multi-year calendar, SUN–SFO peaks in August at 82.9% on-time while March carries the heaviest traffic (~39 flights per month) ; the softest month is December at 56.3%, a 26.6-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does SUN to SFO rank among US routes by traffic? ▼
How often are flights delayed from SUN to SFO? ▼
What is the cancellation rate for SUN to SFO? ▼
How far is the flight from SUN 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 SUN–SFO data
SUN–SFO sits 7.6 pts below the national 79% average; check the seasonal chart and airport profiles before treating the headline as typical.
- Compare SUN and SFO airport profiles: delay causes and top routes differ even on the same corridor. SUN airport
- If your dates flex, August (82.9% on-time) beats December (56.3%) on this corridor. Seasonal chart
- 4 other routes post a similar 71.4% 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.