Airport · SUN · Sun Valley/Hailey/Ketchum, Idaho
Sun Valley/Hailey/Ketchum, ID
Sun Valley/Hailey/Ketchum, ID posts top-10% on-time performance among the 382 tracked U.S. airports, as a mid-size U.S. airport. According to the U.S. DOT Bureau of Transportation Statistics, drawn from 22,928 flights (2020–2025); its biggest delay driver is carrier.
Data updated 2026-06-13
- 88.6%
- On-time
- Top 7%
- on-time, US airports
- 96 min
- Delay when late
- 1.43%
- Cancelled
Key Performance Metrics
Total Flights
22,928
Best Month
Nov 97.7%
Worst Month
Dec 90.4%
Delayed
2,622
Cancelled
328
SUN on-time rate vs. the national average
Ahead of the U.S. average across all 382 tracked airports.
Where SUN sits among all 382 tracked airports
SUN's 88.6% on-time rate falls in the 85-90% band, the 116-airport band it shares.
National on-time-rate distribution
- 60-65% 1
1 airport between 60% and 65% on-time
1 airports
- 65-70% 4
4 airports between 65% and 70% on-time
4 airports
- 70-75% 9
9 airports between 70% and 75% on-time
9 airports
- 75-80% 48
48 airports between 75% and 80% on-time
48 airports
- 80-85%
192 airports between 80% and 85% on-time
192 airports
- 85-90%
116 airports between 85% and 90% on-time
116 airports
- 90-95% 12
12 airports between 90% and 95% on-time
12 airports
What this shows SUN is marked in the 85-90% band.
Delay Cause Breakdown
Top delay cause: Carrier. Total delay minutes: 160,921.
SUN - seasonal on-time pattern
Best: November (97.7%) · worst: December (90.4%)
Seasonal Performance Patterns
Monthly averages across all years of data. Best month: November (97.7% on-time). Most delays: December (90.4% on-time).
| Month | Avg Flights | Avg Delayed | Avg Cancelled | On-Time % |
|---|---|---|---|---|
| December | 400 | 80 | 8 | 90.4% |
| November | 195 | 12 | 1 | 97.7% |
| October | 228 | 17 | 1 | 96.9% |
| September | 272 | 16 | 1 | 97.1% |
| August | 401 | 37 | 1 | 95.4% |
| July | 400 | 45 | 1 | 94.8% |
| June | 287 | 30 | 1 | 95.3% |
| May | 174 | 11 | 3 | 96% |
| April | 161 | 10 | 0 | 97.1% |
| March | 437 | 49 | 13 | 93.8% |
| February | 410 | 58 | 7 | 92.7% |
| January | 456 | 73 | 19 | 92.3% |
Year-Over-Year Performance
Annual flight volume and on-time trends at SUN.
SUN - on-time rate by year
2020–2025, year-over-year trend.
| Year | Flights | Delayed | Cancelled | On-Time % |
|---|---|---|---|---|
| 2025 | 5,009 | 312 | 24 | 93.8% |
| 2024 | 4,010 | 242 | 22 | 94% |
| 2023 | 3,360 | 211 | 28 | 93.7% |
| 2022 | 3,739 | 206 | 47 | 94.5% |
| 2021 | 4,315 | 230 | 61 | 94.7% |
| 2020 | 2,495 | 86 | 146 | 96.6% |
Cancellation & Diversion Analysis
Flight disruption statistics for Sun Valley/Hailey/Ketchum, ID.
Cancellation Rate
1.43%
328 of 22,928 flights
Diversion Rate
0.17%
39 of 22,928 flights
Delay Rate
11.4%
2,622 of 22,928 flights
Monthly Performance
Recent 24 months of flight data.
| Period | Flights | Dep Delayed | Arr Delayed | Cancelled | Diverted |
|---|---|---|---|---|---|
| Dec 2025 | 532 | 53 | 55 | 10 | 0 |
| Nov 2025 | 232 | 3 | 5 | 0 | 0 |
| Oct 2025 | 339 | 12 | 17 | 0 | 0 |
| Sep 2025 | 365 | 13 | 14 | 0 | 0 |
| Aug 2025 | 497 | 29 | 30 | 1 | 2 |
| Jul 2025 | 508 | 32 | 28 | 0 | 2 |
| Jun 2025 | 387 | 25 | 31 | 0 | 0 |
| May 2025 | 290 | 22 | 12 | 1 | 1 |
| Apr 2025 | 244 | 4 | 4 | 0 | 0 |
| Mar 2025 | 557 | 36 | 28 | 0 | 3 |
| Feb 2025 | 502 | 42 | 36 | 7 | 0 |
| Jan 2025 | 556 | 41 | 38 | 5 | 1 |
| Dec 2024 | 411 | 27 | 29 | 4 | 2 |
| Nov 2024 | 178 | 1 | 5 | 1 | 0 |
| Oct 2024 | 218 | 5 | 6 | 0 | 0 |
| Sep 2024 | 272 | 8 | 6 | 0 | 0 |
| Aug 2024 | 390 | 33 | 27 | 0 | 1 |
| Jul 2024 | 388 | 23 | 37 | 1 | 0 |
| Jun 2024 | 305 | 11 | 20 | 0 | 1 |
| May 2024 | 217 | 5 | 5 | 0 | 0 |
| Apr 2024 | 197 | 7 | 8 | 0 | 0 |
| Mar 2024 | 464 | 39 | 26 | 8 | 1 |
| Feb 2024 | 442 | 35 | 35 | 3 | 1 |
| Jan 2024 | 528 | 48 | 50 | 5 | 0 |
Top Routes from SUN
Busiest routes to and from Sun Valley/Hailey/Ketchum, ID.
| Route | Flights | On-Time | Distance |
|---|---|---|---|
| SUN (Sun Valley/Hailey/Ketchum) → SLC (Salt Lake City) | 5,319 | 91.7% | 222 mi |
| SLC (Salt Lake City) → SUN (Sun Valley/Hailey/Ketchum) | 5,318 | 91.9% | 222 mi |
| DEN (Denver) → SUN (Sun Valley/Hailey/Ketchum) | 2,224 | 83.1% | 557 mi |
| SUN (Sun Valley/Hailey/Ketchum) → DEN (Denver) | 2,223 | 83.1% | 557 mi |
| SUN (Sun Valley/Hailey/Ketchum) → LAX (Los Angeles) | 927 | 88.3% | 696 mi |
| LAX (Los Angeles) → SUN (Sun Valley/Hailey/Ketchum) | 926 | 86.5% | 696 mi |
| SFO (San Francisco) → SUN (Sun Valley/Hailey/Ketchum) | 706 | 87.7% | 587 mi |
| SUN (Sun Valley/Hailey/Ketchum) → SFO (San Francisco) | 704 | 71.4% | 587 mi |
Airports With a Similar On-Time Rate
Other U.S. airports nationwide whose on-time rate is closest to Sun Valley/Hailey/Ketchum, ID's 88.6%.
Other Airports in Idaho
Compare performance with other Idaho airports.
Keep exploring
More flight data around Sun Valley/Hailey/Ketchum, ID.
Idaho flight data
Statewide on-time and delay aggregates, plus every reporting airport in Idaho.
View ID data →Airport rankings
See where SUN sits among U.S. airports on on-time rate and average delay.
Best on-time airports →Compare airports
Put SUN head-to-head with another airport on delays and reliability.
Open comparison tool →What the Data Says About SUN
Sun Valley/Hailey/Ketchum, ID in Sun Valley/Hailey/Ketchum, Idaho handled 22,928 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 88.6% on-time departure rate. Of those flights, 2,622 experienced delays, 328 were cancelled, and 39 were diverted. The cancellation rate works out to 1.43%, the diversion rate to 0.17%, and the average delay when departures run late is 95.5 minutes. These figures are the baseline for comparing SUN against other airports in the same state and nationally.
Breaking down what drives delays at SUN, Carrier leads the pack. Carrier accounts for 45.0% of total delay minutes, followed by Weather at 24.1% and Late Aircraft at 15.6%. Weather contributes 24.1% of delay minutes at this airport, while security holds the smallest share at 0.1%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.
Seasonally, November runs the cleanest at SUN with a 97.7% on-time rate, while December is the roughest at 90.4% - a 7-point swing between best and worst month. Volume peaks in January, when average flights hit 456. The busiest route connecting SUN is to SLC (Salt Lake City), with 5,319 flights at a 91.7% on-time rate. Combine these numbers - 88.6% on-time, 95.5-minute average delay, 1.43% cancellation rate, and you have a concrete picture of departure reliability at Sun Valley/Hailey/Ketchum, ID.
Frequently Asked Questions
What is the on-time performance rate at Sun Valley/Hailey/Ketchum, ID (SUN)? ▼
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What is the best month to fly from SUN? ▼
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Flight Guides
Data-driven guides to help you understand airport and flight performance.
Explore PlainFlights
Read our methodology - how this data is sourced, computed, and verified.
Using SUN's data
An airport-level on-time rate is a starting point, not a guarantee for your specific flight.
- Check the busiest route from SUN before you book a connection. See top routes
- Travel in November rather than December if your dates are flexible. Seasonal patterns
- Scores vary by airline and route within the same airport; check the specific carrier you're flying. Browse airlines
On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.
Related
Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. Airport figures are computed directly from BTS On-Time Performance data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.