Route · BWI → SAN · 2020–2025 BTS data
Baltimore to San Diego
The BWI–SAN corridor (Baltimore, MD → San Diego, CA) runs behind the national average, served by 3 carriers across roughly 2,295 miles.
Data updated 2026-06-13
- 77.5%
- On-time
- -1.5 pts
- vs US avg
- 54 min
- Delay when late
- 4,031
- Flights
Cancelled
0.6%
Best Month
Nov 2025 88%
Worst Month
Jul 2024 57%
Distance
2,295 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 102 | 33 | 1 | 1 | WN |
| Nov 2025 | 97 | 12 | 1 | 0 | WN |
| Oct 2025 | 101 | 24 | 0 | 1 | WN |
| Sep 2025 | 82 | 14 | 0 | 2 | WN |
| Aug 2025 | 84 | 11 | 0 | 0 | WN |
| Jul 2025 | 88 | 26 | 5 | 0 | WN |
| Jun 2025 | 82 | 24 | 0 | 0 | WN |
| May 2025 | 76 | 21 | 0 | 0 | WN |
| Apr 2025 | 75 | 25 | 0 | 0 | WN |
| Mar 2025 | 84 | 15 | 0 | 0 | WN |
| Feb 2025 | 54 | 19 | 0 | 0 | WN |
| Jan 2025 | 59 | 10 | 3 | 1 | WN |
| Dec 2024 | 61 | 14 | 0 | 5 | WN |
| Nov 2024 | 56 | 7 | 0 | 0 | WN |
| Oct 2024 | 64 | 10 | 0 | 2 | WN |
| Sep 2024 | 87 | 22 | 0 | 0 | WN,NK |
| Aug 2024 | 119 | 23 | 0 | 0 | NK,WN |
| Jul 2024 | 120 | 51 | 0 | 0 | NK,WN |
| Jun 2024 | 113 | 32 | 1 | 1 | NK,WN |
| May 2024 | 101 | 36 | 0 | 1 | NK,WN |
| Apr 2024 | 82 | 21 | 0 | 0 | WN |
| Mar 2024 | 76 | 20 | 0 | 0 | WN |
| Feb 2024 | 48 | 11 | 0 | 0 | WN |
| Jan 2024 | 55 | 8 | 1 | 0 | WN |
Cancellation Rate
0.6%
12 of 1,966 flights
Diversion Rate
0.7%
14 of 1,966 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
BWI - Baltimore
Full on-time, delay-cause, and seasonal performance for Baltimore, MD.
Origin airport →SAN - San Diego
Full on-time, delay-cause, and seasonal performance for San Diego, CA.
Destination airport →Compare the two airports
See BWI 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 BWI–SAN.
Routes with a similar on-time rate
What the Data Says About BWI to SAN
The Baltimore to San Diego corridor (BWI to SAN) posts a 77.5% on-time rate on the lower edge of the average band, based on 4,031 tracked flights. Late flights run 54.2 minutes behind on average. 3 carriers cover the 2,295-mile route; over the last 24 months, 12 of 1,966 flights were cancelled (0.6%) and 0.7% diverted.
The monthly split is wide on this route: Nov 2025 posted the strongest performance at 88% on-time, while Jul 2024 came in at just 57% - a 30-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from BWI to SAN? ▼
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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.