Route · PHL → SAN · 2020–2025 BTS data
Philadelphia to San Diego
The PHL–SAN corridor (Philadelphia, PA → San Diego, CA) runs behind the national average, served by 1 carrier across roughly 2,370 miles.
Data updated 2026-06-13
- 78.3%
- On-time
- -0.7 pts
- vs US avg
- 72 min
- Delay when late
- 4,281
- Flights
Cancelled
1.2%
Best Month
Apr 2024 93%
Worst Month
Aug 2024 61%
Distance
2,370 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 91 | 19 | 1 | 1 | AA |
| Nov 2025 | 87 | 21 | 1 | 0 | AA |
| Oct 2025 | 90 | 19 | 0 | 2 | AA |
| Sep 2025 | 90 | 14 | 0 | 3 | AA |
| Aug 2025 | 92 | 18 | 0 | 0 | AA |
| Jul 2025 | 93 | 32 | 2 | 0 | AA |
| Jun 2025 | 90 | 30 | 2 | 0 | AA |
| May 2025 | 93 | 29 | 3 | 0 | AA |
| Apr 2025 | 89 | 28 | 0 | 0 | AA |
| Mar 2025 | 86 | 20 | 1 | 2 | AA |
| Feb 2025 | 67 | 22 | 2 | 0 | AA |
| Jan 2025 | 68 | 19 | 0 | 1 | AA |
| Dec 2024 | 90 | 23 | 0 | 4 | AA |
| Nov 2024 | 81 | 13 | 0 | 0 | AA |
| Oct 2024 | 66 | 11 | 0 | 0 | AA |
| Sep 2024 | 89 | 23 | 0 | 0 | AA |
| Aug 2024 | 93 | 36 | 2 | 0 | AA |
| Jul 2024 | 93 | 30 | 2 | 1 | AA |
| Jun 2024 | 86 | 27 | 5 | 0 | AA |
| May 2024 | 61 | 22 | 0 | 0 | AA |
| Apr 2024 | 60 | 4 | 0 | 0 | AA |
| Mar 2024 | 62 | 6 | 0 | 1 | AA |
| Feb 2024 | 70 | 11 | 0 | 0 | AA |
| Jan 2024 | 85 | 21 | 2 | 0 | AA |
Cancellation Rate
1.2%
23 of 1,972 flights
Diversion Rate
0.8%
15 of 1,972 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
PHL - Philadelphia
Full on-time, delay-cause, and seasonal performance for Philadelphia, PA.
Origin airport →SAN - San Diego
Full on-time, delay-cause, and seasonal performance for San Diego, CA.
Destination airport →Compare the two airports
See PHL and SAN side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to PHL–SAN.
Routes with a similar on-time rate
What the Data Says About PHL to SAN
The Philadelphia to San Diego corridor (PHL to SAN) posts a 78.3% on-time rate on the lower edge of the average band, based on 4,281 tracked flights. Late flights run 71.8 minutes behind on average. 1 carrier cover the 2,370-mile route; over the last 24 months, 23 of 1,972 flights were cancelled (1.2%) and 0.8% diverted.
The monthly split is wide on this route: Apr 2024 posted the strongest performance at 93% on-time, while Aug 2024 came in at just 61% - a 32-point swing worth factoring into travel timing.
Frequently Asked Questions
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Flight Guides
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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.