Cheap flights from Boston to San Juan (BOS–SJU)
BOSBoston Logan International Airport
United States
United States
SJULuis Munoz Marin International Airport
Puerto Rico
Puerto Rico
Delta Air Lines, Frontier Airlines and JetBlue Airways fly Boston to San Juan (BOS–SJU) nonstop and back, a great-circle distance of 2,700 km (1,680 mi).
- From
- BOS
- Boston
- To
- SJU
- San Juan
- Nonstop
- Yes · 3 airlines
- Airlines
- DL · F9 · B6
- Cheapest fare found
- $141 one-way
- Distance
- 2,700 km (1,680 mi)
- Most flights
- JetBlue Airways
- Time in the air
- 3h 28m · 3h 41m back
- On time (Touchdown Index)
- 76.2%
- Flights a week
- DL ~6 · B6 ~8
- Aircraft seen
- Airbus A320 · Airbus A321neo · Airbus A321
Network data imported from airport and airline sources:· How we verify
Boston to San Juan fares by month
Cheapest one-way fare found: $141 for October 2026 on Frontier Airlines (1 stop). Nonstop from $167.
- Oct ’26$141
- Nov ’26$167
- Apr ’27$237
- Jun ’27$207
Cheapest one-way fares per month of departure in the Aviasales price cache, found . Fares change by the hour: the live fare is shown when you search.
When to fly BOS–SJU
For Boston Logan (BOS) to San Juan Luis Munoz Marin (SJU), October 2026 had the lowest fare found ($141).
Boston to San Juan: frequently asked questions
Fares: Aviasales price cache, 8 October 2026; tracked flights between 6 September and 3 October 2026, from public ADS-B data.
How much is a flight from Boston Logan (BOS) to San Juan Luis Munoz Marin (SJU)?
From $141 one-way, the cheapest fare found for October 2026 on Frontier Airlines with 1 stop; nonstop from $167 (found 8 October 2026).
How long is the BOS–SJU flight?
3h 28m wheels-up to wheels-down, the median of 60 tracked flights; SJU–BOS took 3h 41m.
Which airlines fly BOS–SJU direct?
Delta Air Lines, Frontier Airlines and JetBlue Airways.
What is the cheapest month to fly BOS–SJU?
October 2026, at $141; the dearest month found was $237.
What is the time difference between Boston and San Juan?
None: Boston and San Juan keep the same time.
Is BOS–SJU usually on time?
76.2% of 105 BOS–SJU flights landed within 15 minutes of their usual time; 7.6% were over an hour late.
How many BOS–SJU flights a week?
Delta Air Lines 6 and JetBlue Airways 8 each way.
What aircraft fly BOS–SJU?
Airbus A320, Airbus A321neo and Airbus A321.
San Juan to Boston: the return flight (SJU–BOS)
All 3 airlines also fly SJU–BOS nonstop.
The return takes 3h 41m in the air (median of 51 tracked flights), 13 minutes longer than BOS–SJU.
Airlines flying BOS–SJU nonstop
| Airline | Usually takes off (BOS time) | Type | Alliance | Notes |
|---|---|---|---|---|
 Delta Air Lines DL | 09:05–09:51 | full-service | SkyTeam | — |
 Frontier Airlines F9 | — | low-cost | — | — |
 JetBlue Airways B6 | 06:21–20:22 | low-cost | — | — |
One-stop alternatives to flying BOS–SJU nonstop
One airline on both legs; check it's sold as one ticket.
- Via Charlotte Amalie (STT) with JetBlue Airways: 2,840 km (1,760 mi) flown, 5% further than nonstop.
- Via New York (JFK) with Delta Air Lines and JetBlue Airways: 2,880 km (1,790 mi) flown, 7% further than nonstop.
- Via Punta Cana (PUJ) with JetBlue Airways: 2,910 km (1,810 mi) flown, 8% further than nonstop.
- Via Newark (EWR) with United Airlines: 2,920 km (1,810 mi) flown, 8% further than nonstop.
- Via Philadelphia (PHL) with
American Airlines and JetBlue Airways: 2,990 km (1,860 mi) flown, 11% further than nonstop.
BOS–SJU route map
More from Boston and San Juan
Explore the airlines’ route maps
- Delta Air Lines route map and destinations
- Frontier Airlines route map and destinations
- JetBlue Airways route map and destinations
Plan your arrival at Luis Munoz Marin International Airport (SJU)
Departure
Boston Logan International Airport
Boston Logan (BOS), Boston. In our data, 46 airlines fly nonstop from BOS to 133 destinations.
View BOS airport guide →Arrival
Luis Munoz Marin International Airport
Luis Munoz Marin (SJU), San Juan.
Onward from San Juan
Places you can't fly to nonstop from BOS, but can from SJU — for a stopover or a second leg.
Related routes
Sources
- en.wikipedia.org — airlines and destinations, checked 2026-10-01
- en.wikipedia.org — airlines and destinations, checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
Flight tracking: adsb.lol community ADS-B data (CC0), 6 September – 3 October 2026. Times are median wheels-up to wheels-down; add taxiing for gate-to-gate.
Report a change — seen something different at the airport or on the airline's site? We re-check and log corrections publicly.