Route · FAT → SAN · 2020–2025 BTS data
Fresno to San Diego
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), FAT to SAN (Fresno to San Diego) ranks #2489 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 82.3%
- On-time
- +3.3 pts
- vs US avg
- 64 min
- Delay when late
- 4,967
- Flights
- #2489 of 4927
- Corpus placement
Cancelled
1.0%
Best Month
Apr 2024 93%
Worst Month
Dec 2024 52%
Distance
314 mi
Carriers
6
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 163 | 49 | 2 | 1 | WN,OO |
| Nov 2025 | 175 | 44 | 2 | 0 | OO,WN |
| Oct 2025 | 178 | 45 | 2 | 2 | OO,WN |
| Sep 2025 | 107 | 16 | 2 | 1 | OO |
| Aug 2025 | 119 | 23 | 1 | 1 | OO |
| Jul 2025 | 123 | 22 | 1 | 1 | OO |
| Jun 2025 | 120 | 24 | 0 | 0 | OO |
| May 2025 | 118 | 23 | 2 | 0 | OO |
| Apr 2025 | 97 | 32 | 0 | 2 | OO |
| Mar 2025 | 78 | 21 | 0 | 1 | OO |
| Feb 2025 | 52 | 19 | 2 | 0 | AS,OO |
| Jan 2025 | 60 | 20 | 0 | 2 | AS,OO |
| Dec 2024 | 93 | 45 | 5 | 0 | AS,OO |
| Nov 2024 | 109 | 41 | 0 | 1 | OO |
| Oct 2024 | 113 | 40 | 5 | 1 | OO |
| Sep 2024 | 85 | 16 | 0 | 0 | OO |
| Aug 2024 | 91 | 15 | 0 | 1 | OO |
| Jul 2024 | 91 | 23 | 0 | 0 | OO |
| Jun 2024 | 88 | 22 | 0 | 0 | OO |
| May 2024 | 66 | 9 | 0 | 0 | OO |
| Apr 2024 | 59 | 4 | 0 | 0 | OO |
| Mar 2024 | 76 | 15 | 0 | 0 | OO |
| Feb 2024 | 69 | 7 | 0 | 0 | OO |
| Jan 2024 | 70 | 7 | 0 | 0 | OO |
FAT–SAN seasonal on-time pattern
Best: January (88.6%) · weakest: December (72.4%)
Strongest calendar month
January
88.6% on-time · ~57 flights/mo
Busiest calendar month
October
~87 flights/mo avg
Weakest calendar month
December
72.4% on-time · ~74 flights/mo
Cancellation Rate
1.0%
24 of 2,400 flights
Diversion Rate
0.6%
14 of 2,400 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
FAT - Fresno
Full on-time, delay-cause, and seasonal performance for Fresno, CA.
FAT on-time profileSAN - San Diego
Full on-time, delay-cause, and seasonal performance for San Diego, CA.
SAN on-time profileCompare the two airports
See FAT and SAN side by side on delays, cancellations, and reliability.
Compare FAT vs SANOrigin-hub reliability standing
Mid-pack among FAT departures
From FAT, this corridor sits with 6 other 75–85% on-time routes out of 11 tracked departures, not the hub's reliability leaders (5 at ≥85%) and not the softest ( 0 below 75%). Destination: San Diego · fleet on-time rank #2229 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to FAT–SAN.
Routes with a similar on-time rate
What the Data Says About FAT to SAN
Bureau of Transportation Statistics records show Fresno to San Diego (FAT to SAN) running a 82.3% on-time rate over 4,967 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 63.9 minutes. The 314-mile corridor is served by 6 carriers, and over the last 24 months 1.0% of 2,400 flights were cancelled, 0.6% diverted.
The monthly split is wide on this route: Apr 2024 posted the strongest performance at 93% on-time, while Dec 2024 came in at just 52% - a 42-point swing worth factoring into travel timing.
On the multi-year calendar, FAT–SAN peaks in January at 88.6% on-time while October carries the heaviest traffic (~87 flights per month) ; the softest month is December at 72.4%, a 16.2-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does FAT to SAN rank among US routes by traffic? ▼
How often are flights delayed from FAT to SAN? ▼
What is the cancellation rate for FAT to SAN? ▼
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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 FAT–SAN data
FAT–SAN runs 3.3 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare FAT and SAN airport profiles: delay causes and top routes differ even on the same corridor. FAT airport
- If your dates flex, January (88.6% on-time) beats December (72.4%) on this corridor. Seasonal chart
- 4 other routes post a similar 82.3% 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.