Boston (BOS) to San Juan (SJU)
Flight time
≈ 4h 09m
Bearing
168° S
Boston (BOS) to San Juan (SJU) is 1,679 miles (2,702 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies BOS–SJU
Filed traffic dataIn May 2026, JetBlue Airways operated the most departures, one of 2 carriers flying nonstop BOS–SJU; the Airbus A321 was the most common aircraft at 47% of departures; flights ran 86% full.
Departures
280
May 2026
Seats
51,902
both directions
Passengers
44,684
both directions
Load factor
86.1%
RPM ÷ ASM
Who flies BOS–SJU?
JetBlue Airways operated the most nonstop BOS–SJU departures in May 2026 (218), one of 2 carriers on the route.
- B6
218 departures · 39,874 seats
Share of departures77.9%84.9%
Load
- DL
62 departures · 12,028 seats
Share of departures22.1%90.2%
Load
What plane flies BOS–SJU?
In May 2026, the Airbus A321 flew 47% of BOS–SJU departures — more than any other aircraft type.
- Airbus A321
131 departures · 80.6% load
46.8% - Airbus A321neo
64 departures · 90.0% load
22.9% - Airbus A320
63 departures · 93.3% load
22.5% - Airbus A220-300
22 departures · 93.6% load
7.9%
How has BOS–SJU traffic changed?
Nonstop BOS–SJU departures fell from 319 in June 2025 to 280 in May 2026.
Monthly nonstop BOS–SJU traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
319 departures · 48,743 passengers
87.3%
Load
July 2025
340 departures · 56,262 passengers
92.4%
Load
August 2025
357 departures · 55,330 passengers
86.9%
Load
September 2025
167 departures · 24,004 passengers
84.4%
Load
October 2025
187 departures · 25,110 passengers
78.7%
Load
November 2025
216 departures · 32,271 passengers
81.4%
Load
December 2025
335 departures · 49,341 passengers
79.6%
Load
January 2026
308 departures · 50,611 passengers
88.8%
Load
February 2026
332 departures · 54,781 passengers
87.6%
Load
March 2026
399 departures · 65,963 passengers
88.4%
Load
April 2026
373 departures · 57,447 passengers
84.7%
Load
May 2026
280 departures · 44,684 passengers
86.1%
Load
By direction
Each direction is filed separately — they rarely match.
BOS → SJU
84.2% full
140 departures · 21,859 passengers
SJU → BOS
88.0% full
140 departures · 22,825 passengers
Nonstop BOS–SJU traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
San Juan
PR
Luis Munoz Marin International Airport
Coordinates
18.44°N, 66.00°W
Hemisphere
N · W
Frequently asked
How far is Boston (BOS) from San Juan (SJU)?
BOS to SJU is 1,679 miles (2,702 km / 1,459 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BOS to SJU?
A nonstop covers the 1,679-mile great-circle distance in roughly 4h 09m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies BOS–SJU?
In May 2026, the Airbus A321 flew the largest share of departures (46.8%), followed by the Airbus A321neo (22.9%).
What mileage do I earn flying BOS–SJU?
Distance-based programs credit off the 1,679-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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