Route · SJC → BOI · 2020–2025 BTS data
San Jose to Boise
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SJC to BOI (San Jose to Boise) ranks #2961 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 86%
- On-time
- +7 pts
- vs US avg
- 57 min
- Delay when late
- 3,844
- Flights
- #2961 of 4927
- Corpus placement
Cancelled
0.1%
Best Month
Aug 2025 94%
Worst Month
Oct 2024 81%
Distance
523 mi
Carriers
8
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 71 | 10 | 0 | 0 | WN,OO |
| Nov 2025 | 62 | 6 | 1 | 0 | OO,WN |
| Oct 2025 | 54 | 8 | 0 | 0 | OO,WN |
| Sep 2025 | 60 | 7 | 0 | 1 | WN,OO |
| Aug 2025 | 62 | 4 | 0 | 0 | OO,WN |
| Jul 2025 | 62 | 4 | 0 | 0 | OO,WN |
| Jun 2025 | 60 | 10 | 0 | 0 | OO,WN |
| May 2025 | 62 | 8 | 0 | 0 | OO,WN |
| Apr 2025 | 60 | 7 | 0 | 0 | OO,WN |
| Mar 2025 | 54 | 7 | 0 | 0 | OO,WN |
| Feb 2025 | 48 | 9 | 0 | 0 | OO,WN |
| Jan 2025 | 48 | 3 | 0 | 0 | OO,WN |
| Dec 2024 | 48 | 12 | 1 | 0 | OO,WN |
| Nov 2024 | 53 | 7 | 0 | 0 | OO,WN |
| Oct 2024 | 58 | 11 | 0 | 0 | OO,WN |
| Sep 2024 | 60 | 8 | 0 | 0 | WN,OO |
| Aug 2024 | 63 | 7 | 0 | 0 | WN,OO |
| Jul 2024 | 62 | 11 | 0 | 0 | OO,WN |
| Jun 2024 | 60 | 11 | 0 | 0 | OO,WN |
| May 2024 | 47 | 11 | 0 | 0 | OO,WN |
| Apr 2024 | 45 | 7 | 0 | 0 | OO,WN |
| Mar 2024 | 48 | 9 | 0 | 0 | OO,WN |
| Dec 2023 | 37 | 7 | 0 | 0 | WN |
| Nov 2023 | 52 | 8 | 0 | 0 | WN,OO |
SJC–BOI seasonal on-time pattern
Best: April (91.9%) · weakest: June (81.0%)
Strongest calendar month
April
91.9% on-time · ~49 flights/mo
Busiest calendar month
August
~69 flights/mo avg
Weakest calendar month
June
81.0% on-time · ~60 flights/mo
Cancellation Rate
0.1%
2 of 1,336 flights
Diversion Rate
0.1%
1 of 1,336 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SJC - San Jose
Full on-time, delay-cause, and seasonal performance for San Jose, CA.
SJC on-time profileBOI - Boise
Full on-time, delay-cause, and seasonal performance for Boise, ID.
BOI on-time profileCompare the two airports
See SJC and BOI side by side on delays, cancellations, and reliability.
Compare SJC vs BOIOrigin-hub reliability standing
Among SJC's stronger departures
SJC → BOI posts a 86% on-time rate, landing in the ≥85% band with 21 of 31 BTS-tracked routes leaving San Jose. The same hub also shows 9 mid-band and 1 challenged departures · fleet-wide on-time rank #922 of 4927 (highest on-time = #1).
Similar routes
Other BTS-tracked routes with comparable performance or trip length to SJC–BOI.
Routes with a similar on-time rate
What the Data Says About SJC to BOI
San Jose to Boise (SJC to BOI) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 86% on-time rate across 3,844 flights, with delays that do happen averaging 56.6 minutes. The corridor runs roughly 523 miles and is served by 8 carriers. Over the most recent 24 months, 2 of 1,336 flights were cancelled (0.1%) and 1 diverted (0.1%).
Monthly performance varies moderately here: Aug 2025 was the strongest month at 94% on-time versus Oct 2024 at 81%, a 13-point difference.
On the multi-year calendar, SJC–BOI peaks in April at 91.9% on-time while August carries the heaviest traffic (~69 flights per month) ; the softest month is June at 81.0%, 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 SJC to BOI rank among US routes by traffic? ▼
How often are flights delayed from SJC to BOI? ▼
What is the cancellation rate for SJC to BOI? ▼
How far is the flight from SJC to BOI? ▼
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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 SJC–BOI data
SJC–BOI runs 7 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare SJC and BOI airport profiles: delay causes and top routes differ even on the same corridor. SJC airport
- If your dates flex, April (91.9% on-time) beats June (81.0%) on this corridor. Seasonal chart
- 4 other routes post a similar 86% 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.