Domestic route
Cheap flights from San Juan to Boston
Luis Muñoz Marín International Airport (SJU) to Boston Logan International Airport (BOS). 1,679 miles, 3h 55m nonstop.
SJU to BOS at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 1,679 milesgreat-circle
- Typical flight time
- 3h 55mnonstop, gate to gate
- Nonstop airlines
- AADLB6NK5 airlinesAmerican, Delta, JetBlue
- Nonstop flights per day
- 23all airlines combined
- Cheapest month
- January 2027over the next six months
- Best day to fly
- Tuesday17% less than Friday
- Time difference
- Same time zone
San Juan to Boston
Round trips from $117
Per traveler, taxes and fees included. Lowest fare we found departs Tue, Jan 5.
Cheapest month: January 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppSan Juan to Boston fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying San Juan to Boston
5 airlines fly nonstop with 23 departures a day combined, plus 4 more with one stop.
- B6JetBlueNonstop · 10 flights a day · first checked bag from $40
- DLDelta Air LinesSkyTeamNonstop · 7 flights a day · first checked bag from $35
- AAAmerican AirlinesoneworldNonstop · 2 flights a day · first checked bag from $40
- F9Frontier AirlinesLow-costNonstop · 2 flights a day · first checked bag from $55
- NKSpirit AirlinesLow-costNonstop · 2 flights a day · first checked bag from $55
- G4Allegiant AirLow-costConnecting via SFB, PIE · first checked bag from $50
- MXBreeze AirwaysLow-costConnecting via CHS, TPA, RDU, ORF · first checked bag from $45
- WNSouthwest AirlinesLow-costConnecting via BWI, MCO, ATL · first checked bag from $35
- UAUnited AirlinesStar AllianceConnecting via EWR, IAD · first checked bag from $40
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Newark (EWR)UA1 airline
- Washington (IAD)UA1 airline
- Baltimore (BWI)WN1 airline
- Orlando (MCO)WN1 airline
- Atlanta (ATL)WN1 airline
Tips for this route
- American, Delta, JetBlue and Spirit all fly SJU to BOS nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
- January 2027 is the cheapest month to fly over the next six months, with round trips from $117; September 2026 is the most expensive at $165 and up, a difference of $48 per traveler.
- Departing on a Tuesday averages 17% less than a Friday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks.
Destination guide
Boston: Revolutionary history in a walkable harbor city
Boston is compact, historic and easy: Logan Airport is minutes from downtown, the Freedom Trail links the sights, and fall in New England starts here. JetBlue and Delta hubs mean strong fare competition.
Best time to visit: Late September–October for foliage and crisp weather, May–June for spring. Summer is warm and busy; winter is cold but has the lowest prices.
Flying the other way? Boston to San JuanFares, airlines and tips for BOS to SJU.Ready to compare live fares?
See every airline on SJU–BOS side by side with bags and seat rules spelled out.
Search San Juan to BostonSan Juan to Boston: common questions
How long is the flight from San Juan to Boston?
A nonstop flight from San Juan (SJU) to Boston (BOS) takes about 3h 55m gate to gate, covering 1,679 miles. Connecting itineraries add the layover, typically 1 to 3 hours more in total.
Which airlines fly nonstop from SJU to BOS?
American Airlines, Delta Air Lines, JetBlue, Spirit Airlines and Frontier Airlines operate nonstop flights from San Juan (SJU) to Boston (BOS), with 23 nonstop departures a day between them. One-stop options connect through EWR, IAD and BWI.
What is the cheapest month to fly from San Juan to Boston?
Over the next six months, January 2027 has the lowest round-trip fares from San Juan (SJU) to Boston (BOS), starting at $117 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book San Juan to Boston flights?
Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between San Juan and Boston?
Boston is in the same time zone as San Juan, so there is no clock change. SJU is on America/Puerto Rico time and BOS on America/New York time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
Other popular city pairs from the same departure city and to the same destination, with the lowest round-trip fares we found.