Cheap flights from Boston to San Juan

Flights overview

Useful information for finding cheap flights from Boston to San Juan and booking your next trip
Cheapest round-trip flights$136
SpiritNonstop5 hrSun, Jan 25 — Sat, Jan 31
The cheapest round-trip flight from Boston to San Juan is currently $136
Cheapest one-way flight$38
FrontierNonstop4 hrTue, Jan 6
The cheapest one-way flight from Boston to San Juan is currently $38
Cheapest nonstop flights$136
SpiritNonstop5 hrSat, Feb 7 — Fri, Feb 13
The cheapest nonstop round-trip flight from Boston to San Juan is currently $136
Last-minute weekend getaway$304
DeltaNonstop5 hrSat, Dec 20 — Sun, Dec 21
The cheapest last-minute weekend getaway from Boston to San Juan is currently $304
Cheapest business class flights$653
United1 stop7 hrSat, Jan 24 — Fri, Jan 30
The cheapest business class round-trip flight from Boston to San Juan is currently $653
Fastest flight3 hr 56 minThe fastest nonstop flight from Boston to San Juan takes 3 hr 56 min
Nonstop flightsEvery dayThere are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from Boston to San Juan is typically February. The most expensive month to fly is typically November.
February
Cheapest
Typical prices: $120–335
November
Most expensive
Typical prices: $250–455

Popular airlines from Boston to San Juan

  • JetBlue
    Nonstop
    from $202
    Typical price: $255–450
    28 weekly nonstop flights
    BOS - SJUEvery day
    547 weekly connecting flights
    BOS - SJUEvery day
  • Delta
    Nonstop
    from $202
    Typical price: $280–680
    14 weekly nonstop flights
    BOS - SJUEvery day
    198 weekly connecting flights
    BOS - SJUEvery day
  • Spirit
    Nonstop
    from $136
    Typical price: $195–470
    7 weekly nonstop flights
    BOS - SJUEvery day
    27 weekly connecting flights
    BOS - SJUEvery day
  • American
    from $195
    Typical price: $290–600
    346 weekly connecting flights
    BOS - SJUEvery day
  • Frontier
    Nonstop
    from $159
    Typical price: $215–560
    3 weekly nonstop flights
    BOS - SJUEvery Tue, Thu, Sun
    36 weekly connecting flights
    BOS - SJUEvery day
  • United
    from $211
    Typical price: $305–620
    157 weekly connecting flights
    BOS - SJUEvery day

Popular airports near Boston

  • Boston Logan International Airport (BOS)
    BostonUnited States12 min4 km
  • John F. Kennedy International Airport (JFK)
    New YorkUnited States3 hr 40 min296 km
  • LaGuardia Airport (LGA)
    New YorkUnited States3 hr 28 min292 km
  • Rhode Island T.F. Green International Airport (PVD)
    ProvidenceUnited States1 hr 9 min76 km

Popular airports near San Juan

  • Luis Munoz Marin International Airport (SJU)
    San JuanPuerto Rico15 min6 km
  • Antonio Rivera Rodríguez Airport (VQS)
    ViequesPuerto Rico2 hr 37 min67 km
  • Benjamín Rivera Noriega Airport (CPX)
    CulebraPuerto Rico3 hr 4 min80 km
  • Aeropuerto Eugenio María de Hostos (MAZ)
    MayagüezPuerto Rico2 hr 10 min116 km

Frequently asked questions about flying from Boston to San Juan

The cheapest flights from Boston to San Juan are usually in February. Typical ticket prices in February range from $120 to $335.
The cheapest round-trip flight from Boston to San Juan recently found on Google Flights was with Spirit from $136. The cheapest one-way flight was with Frontier from $38.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest JetBlue flight from Boston to San Juan is $202, flying from Jan 31 to Feb 6.
  • The cheapest Delta flight from Boston to San Juan is $202, flying from Jan 24 to Jan 31.
  • The cheapest Spirit flight from Boston to San Juan is $136, flying from Jan 25 to Jan 31.
  • The cheapest American flight from Boston to San Juan is $195, flying from Jan 22 to Jan 28.
  • The cheapest Frontier flight from Boston to San Juan is $159, flying from Feb 19 to Feb 26.
  • The cheapest United flight from Boston to San Juan is $211, flying from Jan 24 to Jan 30.
The cheapest round-trip flight from Boston to San Juan starts at $136 from Sun, Jan 25 to Sat, Jan 31. The cheapest one-way flight starts at $38 and departs on Tue, Jan 6.
3 hr 56 min is the shortest flight time from Boston to San Juan.
Peak travel is Dec–Jul. A tropical climate ensures warm temperatures and frequent rainfall year-round. The San Sebastián Street Festival (Jan) is a huge open-air party, with music, food and rum cocktails, plus local artists displaying their paintings around Old San Juan. Festival Casals (varies Feb/Mar) is a classical music festival staged in honor of cellist Pablo Casals, who founded the Puerto Rico Symphony Orchestra. Hurricane season is Jun–Nov.
It's easy to use Google Flights to find the cheapest days to fly from Boston to San Juan.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.
What counts as the best airline for your flights from Boston to San Juan really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Boston to San Juan.

In terms of nonstop flights, JetBlue is the most popular. JetBlue offers 28 nonstop flights and 547 connecting flights per week. JetBlue flies from Boston Logan International Airport (BOS) to Luis Munoz Marin International Airport (SJU).

Other popular airlines flying from Boston to San Juan are:
  • Delta offers 14 nonstop flights and 198 connecting flights per week. Delta flies from Boston Logan International Airport (BOS) to Luis Munoz Marin International Airport (SJU).
  • Spirit offers 7 nonstop flights and 27 connecting flights per week. Spirit flies from Boston Logan International Airport (BOS) to Luis Munoz Marin International Airport (SJU).
  • American offers 346 connecting flights per week. American flies from Boston Logan International Airport (BOS) to Luis Munoz Marin International Airport (SJU).
  • Frontier offers 3 nonstop flights and 36 connecting flights per week. Frontier flies from Boston Logan International Airport (BOS) to Luis Munoz Marin International Airport (SJU).
  • United offers 157 connecting flights per week. United flies from Boston Logan International Airport (BOS) to Luis Munoz Marin International Airport (SJU).
The number of connecting flights refers to distinct flights with at least one stop between Boston and San Juan.
The cheapest round-trip flight from Boston to San Juan recently found on Google Flights was with Spirit from $136. The cheapest one-way flight was with Frontier from $38.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest JetBlue flight from Boston to San Juan is $202, flying from Jan 31 to Feb 6.
  • The cheapest Delta flight from Boston to San Juan is $202, flying from Jan 24 to Jan 31.
  • The cheapest Spirit flight from Boston to San Juan is $136, flying from Jan 25 to Jan 31.
  • The cheapest American flight from Boston to San Juan is $195, flying from Jan 22 to Jan 28.
  • The cheapest Frontier flight from Boston to San Juan is $159, flying from Feb 19 to Feb 26.
  • The cheapest United flight from Boston to San Juan is $211, flying from Jan 24 to Jan 30.
JetBlue, Delta, Spirit and Frontier fly direct from Boston to San Juan.
  • There are 28 JetBlue direct flights from Boston to San Juan per week. Flights are available every day.
  • There are 14 Delta direct flights from Boston to San Juan per week. Flights are available every day.
  • There are 7 Spirit direct flights from Boston to San Juan per week. Flights are available every day.
  • There are 3 Frontier direct flights from Boston to San Juan per week. Flights are available on Tuesday, Thursday and Sunday.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
The cheapest last-minute deal between Boston and San Juan at price $304 is offered by Delta from Sat, Dec 20 to Sun, Dec 21.
JetBlue, Delta, Spirit and Frontier fly direct from Boston to San Juan.
  • There are 28 JetBlue direct flights from Boston to San Juan per week. Flights are available every day.
  • There are 14 Delta direct flights from Boston to San Juan per week. Flights are available every day.
  • There are 7 Spirit direct flights from Boston to San Juan per week. Flights are available every day.
  • There are 3 Frontier direct flights from Boston to San Juan per week. Flights are available on Tuesday, Thursday and Sunday.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
There are direct flights from Boston to San Juan on a daily basis.
The cheapest direct (nonstop) round-trip flights between Boston and San Juan start at $136 from Sat, Feb 7 to Fri, Feb 13 with Spirit.
It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Boston to San Juan, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.
The cheapest business class round-trip flights between Boston and San Juan start at $653 from Sat, Jan 24 to Fri, Jan 30 with United.
The cheapest economy class round-trip flights between Boston and San Juan start at $136 from Sun, Jan 25 to Sat, Jan 31.
To book business class trips from Boston to San Juan, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.
The best last-minute getaway deal for the next weekend between Boston and San Juan starts at $304 from Sat, Dec 20 to Sun, Dec 21 with Delta.
The cheapest last-minute deal between Boston and San Juan at price $304 is offered by Delta from Sat, Dec 20 to Sun, Dec 21.
To find last-minute flight deals from Boston to San Juan, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.

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