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 July 2026, JetBlue Airways operated the most departures, one of 2 carriers flying nonstop BOS–SJU; the Airbus A320 was the most common aircraft at 73% of departures; flights ran 96% full.
Departures
233
July 2026
Seats
39,734
both directions
Passengers
38,028
both directions
Load factor
95.7%
RPM ÷ ASM
Who flies BOS–SJU?
JetBlue Airways operated the most nonstop BOS–SJU departures in July 2026 (172), one of 2 carriers on the route.
- B6
172 departures · 27,902 seats
Share of departures73.8%95.4%
Load
- DL
61 departures · 11,832 seats
Share of departures26.2%96.4%
Load
What plane flies BOS–SJU?
In July 2026, the Airbus A320 flew 73% of BOS–SJU departures — more than any other aircraft type.
- Airbus A320
171 departures · 95.5% load
73.4% - Airbus A321neo
61 departures · 96.4% load
26.2% - Airbus A321
1 departures · 77.5% load
0.4%
How has BOS–SJU traffic changed?
Nonstop BOS–SJU departures fell from 357 in August 2025 to 233 in July 2026.
Monthly nonstop BOS–SJU traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
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
June 2026
251 departures · 38,541 passengers
89.8%
Load
July 2026
233 departures · 38,028 passengers
95.7%
Load
By direction
Each direction is filed separately — they rarely match.
BOS → SJU
95.9% full
118 departures · 19,284 passengers
SJU → BOS
95.5% full
115 departures · 18,744 passengers
Nonstop BOS–SJU traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 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 July 2026, the Airbus A320 flew the largest share of departures (73.4%), followed by the Airbus A321neo (26.2%).
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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