Route · BWI → SJU · 2020–2025 BTS data
Baltimore to San Juan
The BWI–SJU corridor (Baltimore, MD → San Juan, PR) runs behind the national average, served by 7 carriers across roughly 1,565 miles.
Data updated 2026-06-13
- 71.5%
- On-time
- -7.5 pts
- vs US avg
- 66 min
- Delay when late
- 7,106
- Flights
Cancelled
1.2%
Best Month
Oct 2024 81%
Worst Month
Aug 2024 52%
Distance
1,565 mi
Carriers
7
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 115 | 44 | 1 | 0 | WN,F9,NK |
| Nov 2025 | 75 | 22 | 1 | 0 | F9,NK,WN |
| Oct 2025 | 61 | 16 | 0 | 0 | WN,NK |
| Sep 2025 | 70 | 16 | 0 | 0 | WN,NK,F9 |
| Aug 2025 | 103 | 42 | 1 | 0 | WN,F9,NK |
| Jul 2025 | 141 | 60 | 5 | 0 | WN,F9,NK |
| Jun 2025 | 134 | 43 | 0 | 0 | WN,F9,NK |
| May 2025 | 113 | 41 | 0 | 0 | NK,WN,F9 |
| Apr 2025 | 142 | 35 | 0 | 1 | F9,NK,WN |
| Mar 2025 | 142 | 33 | 0 | 0 | WN,F9,NK |
| Feb 2025 | 90 | 23 | 1 | 0 | WN,F9,NK |
| Jan 2025 | 101 | 19 | 4 | 1 | NK,WN,F9 |
| Dec 2024 | 132 | 36 | 1 | 0 | F9,NK,WN |
| Nov 2024 | 97 | 18 | 0 | 0 | NK,WN,F9 |
| Oct 2024 | 54 | 10 | 0 | 2 | WN,NK |
| Sep 2024 | 64 | 17 | 0 | 0 | WN,F9,NK |
| Aug 2024 | 106 | 51 | 5 | 0 | F9,NK,WN |
| Jul 2024 | 124 | 54 | 4 | 0 | F9,NK,WN |
| Jun 2024 | 123 | 35 | 2 | 0 | F9,NK,WN |
| May 2024 | 122 | 35 | 2 | 0 | F9,NK,WN |
| Apr 2024 | 137 | 26 | 1 | 1 | F9,NK,WN |
| Mar 2024 | 128 | 45 | 1 | 0 | NK,WN |
| Feb 2024 | 108 | 23 | 1 | 0 | F9,NK,WN |
| Jan 2024 | 139 | 49 | 2 | 0 | F9,NK,WN |
Cancellation Rate
1.2%
32 of 2,621 flights
Diversion Rate
0.2%
5 of 2,621 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 →SJU - San Juan
Full on-time, delay-cause, and seasonal performance for San Juan, PR.
Destination airport →Compare the two airports
See BWI and SJU 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–SJU.
Routes with a similar on-time rate
What the Data Says About BWI to SJU
On-time performance on the BWI to SJU pairing (Baltimore to San Juan) trails a chunk of the network: 71.5% of 7,106 tracked flights arrived on schedule, with a 65.5-minute average delay on the ones that ran late. The route spans about 1,565 miles across 7 carriers. Cancellations over the trailing 24 months hit 1.2% (32 of 2,621 flights), with 0.2% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 81% on-time, while Aug 2024 came in at just 52% - a 30-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.