Route · SAN → BOI · 2020–2025 BTS data
San Diego to Boise
The SAN–BOI corridor (San Diego, CA → Boise, ID) runs ahead of the national average, served by 15 carriers across roughly 749 miles.
Data updated 2026-06-13
- 81.7%
- On-time
- +2.7 pts
- vs US avg
- 58 min
- Delay when late
- 3,783
- Flights
Cancelled
0.7%
Best Month
Sep 2025 90%
Worst Month
Dec 2024 63%
Distance
749 mi
Carriers
15
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 94 | 21 | 0 | 0 | WN,AS,OO |
| Nov 2025 | 90 | 18 | 1 | 0 | OO,AS,WN |
| Oct 2025 | 91 | 12 | 1 | 0 | AS,OO,WN |
| Sep 2025 | 86 | 9 | 1 | 0 | WN,OO,AS |
| Aug 2025 | 88 | 17 | 0 | 0 | OO,WN,AS |
| Jul 2025 | 91 | 23 | 0 | 0 | OO,WN |
| Jun 2025 | 90 | 22 | 1 | 0 | OO,WN |
| May 2025 | 93 | 16 | 0 | 0 | OO,WN |
| Apr 2025 | 69 | 12 | 1 | 0 | OO,WN |
| Mar 2025 | 60 | 16 | 0 | 0 | OO,WN |
| Feb 2025 | 45 | 12 | 1 | 0 | OO,WN |
| Jan 2025 | 44 | 13 | 1 | 0 | OO,WN |
| Dec 2024 | 65 | 24 | 3 | 0 | OO,WN |
| Nov 2024 | 65 | 21 | 1 | 0 | OO,WN |
| Oct 2024 | 72 | 26 | 1 | 0 | AS,OO,WN |
| Sep 2024 | 56 | 16 | 0 | 0 | WN,OO |
| Aug 2024 | 62 | 12 | 0 | 0 | WN,OO |
| Jul 2024 | 66 | 16 | 0 | 0 | OO,WN |
| Jun 2024 | 65 | 14 | 0 | 0 | OO,WN |
| May 2024 | 61 | 7 | 0 | 0 | OO,WN |
| Apr 2024 | 45 | 4 | 0 | 0 | OO,WN |
| Mar 2024 | 40 | 8 | 0 | 0 | OO,WN |
| Feb 2024 | 41 | 5 | 0 | 0 | OO,WN |
| Jan 2024 | 51 | 11 | 0 | 1 | WN,OO |
Cancellation Rate
0.7%
12 of 1,630 flights
Diversion Rate
0.1%
1 of 1,630 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SAN - San Diego
Full on-time, delay-cause, and seasonal performance for San Diego, CA.
Origin airport →BOI - Boise
Full on-time, delay-cause, and seasonal performance for Boise, ID.
Destination airport →Compare the two airports
See SAN and BOI side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to SAN–BOI.
Routes with a similar on-time rate
What the Data Says About SAN to BOI
3,783 tracked flights put the SAN to BOI pairing (San Diego to Boise) at a 81.7% on-time rate, squarely in line with the wider network. Delays that do occur run 58.3 minutes on average. Across the 749-mile route and its 15 carriers, the trailing 24 months show 0.7% cancelled and 0.1% diverted (1,630 flights sampled).
The monthly split is wide on this route: Sep 2025 posted the strongest performance at 90% on-time, while Dec 2024 came in at just 63% - a 27-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.
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.