DL1780Delta Air Lines · SJU → BOS
live · 3m ago
Route confirmed Delta Air Lines

DL1780 San JuanSJU · 14:02 BostonBOS · 18:15

DL1780 by Delta Air Lines flies from San Juan (SJU) to Boston (BOS) for the Wed, Oct 21 departure.

Same number through SJU → MCO → BOS

Right nowIn the air to Boston · off blocks 14:10 · 8 min late
17:49

estimated arrival at BOS · local time · ~96 min from now

LivePosition · updated 3m ago
BOS666 mi · ~96 min leftSJU
36,000 ftAltitudecruising
560 mphSpeed487 kt
350°Direction

Live position · flown path, last 5h 49m

Typical gate push+14 minmedian posted departure
Typical arrival−17 minmedian over 2 operations
Wins back in air~31 minmedian gate push vs arrival · how planes make up time →

The route today

live boards
SJUSan JuanOn-time likelySJU delay board →
BOSBostonOn-time likelyBOS delay board →
SJU→BOSevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
49%Chance of 15+ min delay
2.6%Chance of cancellation
+20 minAvg hub delay right now

Conditions at SJU and BOS are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

How DL1780 actually runs

Pro Flight Search has tracked every published board update for DL1780 across the SJU and BOS boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: left a little late (~14 min) but landed about 17 min early. Not enough to call it.

The verdict above is that record speaking, so it reflects how DL1780 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
10-21SJU 14:02 14:10 (+8)BOS 18:15 17:49 (−26)
10-20SJU 14:02 14:16 (+14)BOS 18:15 17:58 (−17)

Aircraft

Recent tails: N543DE.

Board clocks recorded as SJU and BOS published them.

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — DL1780 San Juan to Boston on-time performance, measured from the SJU and BOS airport boards.

Canonical URL
https://proflightsearch.com/flight/DL1780
How we measure this →