Route · SJU → DCA · 2020–2025 BTS data
San Juan to Washington
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SJU to DCA (San Juan to Washington) ranks #4045 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 62.2%
- On-time
- -16.8 pts
- vs US avg
- 88 min
- Delay when late
- 1,655
- Flights
- #4045 of 4927
- Corpus placement
Cancelled
0.3%
Best Month
N/A
Worst Month
N/A
Distance
1,554 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 31 | 6 | 0 | 0 | B6 |
| Nov 2025 | 30 | 9 | 0 | 0 | B6 |
| Oct 2025 | 31 | 13 | 0 | 0 | B6 |
| Sep 2025 | 30 | 7 | 0 | 1 | B6 |
| Aug 2025 | 31 | 10 | 0 | 0 | B6 |
| Jul 2025 | 31 | 15 | 0 | 0 | B6 |
| Jun 2025 | 30 | 6 | 0 | 0 | B6 |
| May 2025 | 31 | 8 | 0 | 0 | B6 |
| Apr 2025 | 30 | 4 | 0 | 0 | B6 |
| Mar 2025 | 31 | 13 | 0 | 0 | B6 |
| Jan 2025 | 31 | 10 | 1 | 1 | B6 |
| Dec 2024 | 31 | 9 | 0 | 0 | B6 |
| Nov 2024 | 30 | 3 | 0 | 2 | B6 |
| Oct 2024 | 31 | 5 | 0 | 0 | B6 |
| Sep 2024 | 30 | 0 | 0 | 0 | B6 |
| Aug 2024 | 31 | 9 | 1 | 2 | B6 |
| Jul 2024 | 31 | 9 | 0 | 0 | B6 |
| Jun 2024 | 30 | 9 | 0 | 2 | B6 |
| May 2024 | 31 | 15 | 0 | 0 | B6 |
| Apr 2024 | 30 | 13 | 0 | 0 | B6 |
| Mar 2024 | 31 | 15 | 0 | 1 | B6 |
| Jan 2024 | 31 | 13 | 0 | 0 | B6 |
| Dec 2023 | 31 | 8 | 0 | 1 | B6 |
| Nov 2023 | 30 | 6 | 0 | 0 | B6 |
SJU–DCA seasonal on-time pattern
Best: September (74.7%) · weakest: July (55.4%)
Strongest calendar month
September
74.7% on-time · ~30 flights/mo
Busiest calendar month
January
~31 flights/mo avg
Weakest calendar month
July
55.4% on-time · ~31 flights/mo
Cancellation Rate
0.3%
2 of 735 flights
Diversion Rate
1.4%
10 of 735 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SJU - San Juan
Full on-time, delay-cause, and seasonal performance for San Juan, PR.
SJU on-time profileDCA - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
DCA on-time profileCompare the two airports
See SJU and DCA side by side on delays, cancellations, and reliability.
Compare SJU vs DCAOrigin-hub reliability standing
Softer reliability from SJU
Among 21 routes leaving SJU, only 6 (including this one) clear below 75% on-time, while 1 stay ≥85% and 14 sit mid-band. Travelers comparing SJU options should weigh this 62.2% print against those peers · fleet on-time rank #4913 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to SJU–DCA.
Routes with a similar on-time rate
What the Data Says About SJU to DCA
San Juan to Washington (SJU to DCA) sits among the less reliable pairings in the BTS dataset, on-time only 62.2% of the time across 1,655 flights, with a 88.0-minute average delay when service runs late. Carriers on this 1,554-mile route (1 total) show a 0.3% cancellation rate and 1.4% diversion rate over the last 24 months (2 of 735 flights cancelled).
Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.
On the multi-year calendar, SJU–DCA peaks in September at 74.7% on-time while January carries the heaviest traffic (~31 flights per month) ; the softest month is July at 55.4%, a 19.3-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does SJU to DCA rank among US routes by traffic? ▼
How often are flights delayed from SJU to DCA? ▼
What is the cancellation rate for SJU to DCA? ▼
How far is the flight from SJU to DCA? ▼
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 SJU–DCA data
SJU–DCA sits 16.8 pts below the national 79% average; check the seasonal chart and airport profiles before treating the headline as typical.
- Compare SJU and DCA airport profiles: delay causes and top routes differ even on the same corridor. SJU airport
- If your dates flex, September (74.7% on-time) beats July (55.4%) on this corridor. Seasonal chart
- 4 other routes post a similar 62.2% 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.