Route · BWI → SAT · 2020–2025 BTS data
Baltimore to San Antonio
The BWI–SAT corridor (Baltimore, MD → San Antonio, TX) runs behind the national average, served by 3 carriers across roughly 1,407 miles.
Data updated 2026-06-13
- 75.4%
- On-time
- -3.6 pts
- vs US avg
- 56 min
- Delay when late
- 4,305
- Flights
Cancelled
0.8%
Best Month
Oct 2024 95%
Worst Month
Jul 2024 38%
Distance
1,407 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 71 | 17 | 1 | 0 | WN |
| Nov 2025 | 61 | 7 | 0 | 1 | WN |
| Oct 2025 | 75 | 15 | 0 | 0 | WN |
| Sep 2025 | 69 | 10 | 0 | 0 | WN |
| Aug 2025 | 71 | 11 | 1 | 0 | WN |
| Jul 2025 | 85 | 21 | 2 | 0 | NK,WN |
| Jun 2025 | 87 | 36 | 1 | 0 | WN,NK |
| May 2025 | 63 | 21 | 0 | 1 | WN,NK |
| Apr 2025 | 57 | 9 | 0 | 0 | WN |
| Mar 2025 | 62 | 14 | 1 | 0 | WN |
| Feb 2025 | 58 | 14 | 0 | 0 | WN |
| Jan 2025 | 61 | 14 | 3 | 0 | WN |
| Dec 2024 | 68 | 15 | 0 | 0 | WN |
| Nov 2024 | 59 | 4 | 0 | 1 | WN |
| Oct 2024 | 74 | 4 | 0 | 0 | WN |
| Sep 2024 | 73 | 10 | 0 | 0 | WN |
| Aug 2024 | 75 | 14 | 2 | 0 | WN |
| Jul 2024 | 73 | 45 | 1 | 1 | WN |
| Jun 2024 | 70 | 21 | 0 | 0 | WN |
| May 2024 | 58 | 23 | 0 | 0 | WN |
| Apr 2024 | 56 | 21 | 0 | 1 | WN |
| Mar 2024 | 57 | 11 | 0 | 0 | WN |
| Feb 2024 | 54 | 10 | 0 | 0 | WN |
| Jan 2024 | 60 | 22 | 1 | 0 | WN |
Cancellation Rate
0.8%
13 of 1,597 flights
Diversion Rate
0.3%
5 of 1,597 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 →SAT - San Antonio
Full on-time, delay-cause, and seasonal performance for San Antonio, TX.
Destination airport →Compare the two airports
See BWI and SAT 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–SAT.
Routes with a similar on-time rate
What the Data Says About BWI to SAT
The Baltimore to San Antonio corridor (BWI to SAT) posts a 75.4% on-time rate on the lower edge of the average band, based on 4,305 tracked flights. Late flights run 55.7 minutes behind on average. 3 carriers cover the 1,407-mile route; over the last 24 months, 13 of 1,597 flights were cancelled (0.8%) and 0.3% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 95% on-time, while Jul 2024 came in at just 38% - a 56-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from BWI to SAT? ▼
What is the cancellation rate for BWI to SAT? ▼
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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.