BOS → SJUBoston to San Juan

live

Direct flights from Boston (BOS) to San Juan (SJU): 14 nonstop departures observed each week across 2 airlines. 80% of the last 5 operated flights arrived within 15 minutes of schedule. The median arrival is 7 minutes late. No cancellations were recorded across the 5 tracked flights. The nonstop covers 2,702 km, an estimated 3 hours 58 minutes in the air. Measured by Pro Flight Search from live flight boards at Boston and San Juan. Updated 19 October 2026 at 14:14 UTC.

Today, BOS → SJU

Mon 19 Oct · local times
  1. 08:50 DL1780Delta Left 09:00 +10 ·
  2. 11:10 B6861JetBlue On scheduleGate C20 · TC ·
  3. 19:42 B6561JetBlue On scheduleGate C36 · TC ·

Checked BOS board 10:14 · SJU board 06:33

BOS Boston smooth · +0
SJU San Juan busy · +27
2,702 km · ~3h 58m est.
dep bank 08:50–19:4214x weekly
Runs reliable · 2 airlines · 14x weekly · nonstop
80% on time

of the last 5 operated BOS → SJU flights arrived within 15 minutes

Median arrival delay is +7 min. 0 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+7 minacross the last 5 operated legs
Flight time~3h 58mestimated from route distance
Weekly departures14x2 direct airlines on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Delta Air LinesJetBlue Airways

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Delta Air LinesDL

Flights DL1780 08:50 daily

JetBlue AirwaysB6

Flights B6861 11:10 daily · B6561 19:42 daily

History

operated legs · board outcomes
10-19DL1780departed+10
10-18B6561dep +0 → arr+1
10-18B6861dep +9 → arr+7
10-18DL1780dep −5 → arr−7
10-17B6561departed+166

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
BOSBoston +0 min smooth 🌤 few clouds · 3 kt Full BOS delay board →
SJUSan Juan +27 min busy 🌤 few clouds · SSE 3 kt Full SJU delay board →

Weather lens

Current conditions put the pressure at SJU: 49% odds of a 15+ minute delay and around +20 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Boston to San Juan route actually runs

Pro Flight Search records official board updates for nonstop BOS to SJU flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

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 — Boston (BOS) to San Juan (SJU) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/BOS-SJU
How we measure this →

BOS to SJU questions

Is BOS–SJU running on time right now?

Smooth skies ahead. The arrival side at SJU is the weaker end, route health score 82/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on BOS–SJU?

Operators schedule morning departures around 08:50 and evening departures around 19:42 from BOS. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SJU delay card to confirm conditions when you'd arrive.

How long is the flight from BOS to SJU?

Great-circle distance is 2,702 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 221–262 min gate-to-gate on this route.

How often does BOS–SJU fly?

2 carriers operate this route, around 21 flights a week between them. Compare carrier days and times in the airline list above.