Route · STS → SNA · 2020–2025 BTS data
Santa Rosa to Santa Ana
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), STS to SNA (Santa Rosa to Santa Ana) ranks #3474 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 79.6%
- On-time
- +0.6 pts
- vs US avg
- 66 min
- Delay when late
- 2,615
- Flights
- #3474 of 4927
- Corpus placement
Cancelled
0.5%
Best Month
Feb 2024 88%
Worst Month
Dec 2024 62%
Distance
433 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 93 | 34 | 4 | 0 | OO |
| Nov 2025 | 69 | 19 | 0 | 0 | OO |
| Oct 2025 | 62 | 12 | 0 | 0 | OO |
| Sep 2025 | 60 | 13 | 0 | 0 | OO |
| Aug 2025 | 62 | 14 | 1 | 0 | OO |
| Jul 2025 | 62 | 23 | 0 | 0 | OO |
| Jun 2025 | 60 | 14 | 0 | 0 | OO |
| May 2025 | 62 | 14 | 0 | 1 | OO |
| Apr 2025 | 60 | 18 | 0 | 0 | OO |
| Mar 2025 | 54 | 11 | 0 | 0 | OO |
| Feb 2025 | 44 | 17 | 1 | 0 | OO |
| Jan 2025 | 51 | 12 | 0 | 0 | OO |
| Dec 2024 | 53 | 20 | 0 | 0 | OO |
| Nov 2024 | 59 | 9 | 1 | 0 | OO |
| Oct 2024 | 62 | 16 | 0 | 0 | OO |
| Sep 2024 | 60 | 15 | 0 | 0 | OO |
| Aug 2024 | 58 | 8 | 0 | 0 | OO |
| Jul 2024 | 52 | 10 | 0 | 0 | OO |
| Jun 2024 | 52 | 11 | 0 | 0 | OO |
| May 2024 | 42 | 4 | 0 | 0 | OO |
| Apr 2024 | 45 | 11 | 0 | 0 | OO |
| Mar 2024 | 62 | 13 | 0 | 0 | OO |
| Feb 2024 | 52 | 6 | 0 | 0 | OO |
| Jan 2024 | 44 | 5 | 0 | 0 | OO |
STS–SNA seasonal on-time pattern
Best: January (85.6%) · weakest: December (67.8%)
Strongest calendar month
January
85.6% on-time · ~38 flights/mo
Busiest calendar month
October
~55 flights/mo avg
Weakest calendar month
December
67.8% on-time · ~48 flights/mo
Cancellation Rate
0.5%
7 of 1,380 flights
Diversion Rate
0.1%
1 of 1,380 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
STS - Santa Rosa
Full on-time, delay-cause, and seasonal performance for Santa Rosa, CA.
STS on-time profileSNA - Santa Ana
Full on-time, delay-cause, and seasonal performance for Santa Ana, CA.
SNA on-time profileCompare the two airports
See STS and SNA side by side on delays, cancellations, and reliability.
Compare STS vs SNAOrigin-hub reliability standing
Mid-pack among STS departures
From STS, this corridor sits with 7 other 75–85% on-time routes out of 8 tracked departures, not the hub's reliability leaders (1 at ≥85%) and not the softest ( 0 below 75%). Destination: Santa Ana · fleet on-time rank #3324 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to STS–SNA.
Routes with a similar on-time rate
What the Data Says About STS to SNA
2,615 tracked flights put the STS to SNA pairing (Santa Rosa to Santa Ana) at a 79.6% on-time rate, squarely in line with the wider network. Delays that do occur run 65.7 minutes on average. Across the 433-mile route and its 3 carriers, the trailing 24 months show 0.5% cancelled and 0.1% diverted (1,380 flights sampled).
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 88% on-time, while Dec 2024 came in at just 62% - a 26-point swing worth factoring into travel timing.
On the multi-year calendar, STS–SNA peaks in January at 85.6% on-time while October carries the heaviest traffic (~55 flights per month) ; the softest month is December at 67.8%, a 17.8-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does STS to SNA rank among US routes by traffic? ▼
How often are flights delayed from STS to SNA? ▼
What is the cancellation rate for STS to SNA? ▼
How far is the flight from STS to SNA? ▼
When is the best time to fly from STS to SNA? ▼
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 STS–SNA data
STS–SNA is mid-pack at 79.6% on-time; month and carrier mix move more than the corridor headline.
- Compare STS and SNA airport profiles: delay causes and top routes differ even on the same corridor. STS airport
- If your dates flex, January (85.6% on-time) beats December (67.8%) on this corridor. Seasonal chart
- 4 other routes post a similar 79.6% 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.