Delta Air Lines
DL1780Boston to San Juan
Delta Air Lines flight DL1780 flies from Boston (BOS) to San Juan (SJU), 2,702 km. Over August 2025 to July 2026 it usually arrives about 4 minutes late: 78% of 689 flights arrived within 15 minutes of schedule and 1% were cancelled (US Department of Transportation data).
On-time record, last 12 months
78%
on time (within 15 min)
12%
more than 30 min late
1%
cancelled
+4 min
average arrival vs schedule
Every operation of DL1780, August 2025 to July 2026: 689 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as DL1780
- Boston (BOS) to San Juan (SJU)365 flights
- San Juan (SJU) to Boston (BOS)324 flights
Other flights from Boston to San Juan
More about Boston (BOS) and San Juan (SJU).
Embed this on your site
A live badge for travel blogs, forums and trip reports. It updates as new data comes in, and links back here for the full stats.
Dark badge, HTML
<a href="https://tripstow.com/flights/dl1780" title="DL1780 is on time 78% of the time on TripStow"><img src="https://tripstow.com/badge/flights/dl1780.svg" alt="DL1780 is on time 78% of the time" width="360" height="88" loading="lazy"></a>
Light badge, HTML
<a href="https://tripstow.com/flights/dl1780" title="DL1780 is on time 78% of the time on TripStow"><img src="https://tripstow.com/badge/flights/dl1780.svg?theme=light" alt="DL1780 is on time 78% of the time" width="360" height="88" loading="lazy"></a>Markdown, for forums and README files
[](https://tripstow.com/flights/dl1780)Flying soon?
Forward your booking to TripStow and get your trip built for you, with check-in reminders, punctuality for every flight and a map of everywhere you have been.
Start free