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Flights from Boston to San Juan
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Find Boston to San Juan flights starting at CAD 48.

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip
      • Cheapest nonstop
        BOS10:16
        4h 5m
        Nonstop
        SJU15:21
        Sat, Jan 11|Boston - San Juan|Frontier Airlines
        CAD 48CAD 74
        35% OFF
        35% OFF
        CAD 74CAD 48

        Choose Frontier Airlines flights from Boston to San Juan. The one-way direct flight with Frontier Airlines departs from General Edward Lawrence Logan International Airport on Sat, Jan 11, arriving at Luis Muñoz Marín International Airport. One-way Prices start from CAD 48 including taxes and charges.

      • BOS10:03
        4h 4m
        Nonstop
        SJU15:07
        Sun, Jan 19|Boston - San Juan|Frontier Airlines
        CAD 63CAD 74
        15% OFF
        15% OFF
        CAD 74CAD 63

        Choose Frontier Airlines flights from Boston to San Juan. The one-way direct flight with Frontier Airlines departs from General Edward Lawrence Logan International Airport on Sun, Jan 19, arriving at Luis Muñoz Marín International Airport. One-way Prices start from CAD 63 including taxes and charges.

      • BOS10:26
        4h 5m
        Nonstop
        SJU15:31
        Tue, Jan 7|Boston - San Juan|Frontier Airlines
        CAD 64CAD 74
        14% OFF
        14% OFF
        CAD 74CAD 64

        Choose Frontier Airlines flights from Boston to San Juan. The one-way direct flight with Frontier Airlines departs from General Edward Lawrence Logan International Airport on Tue, Jan 7, arriving at Luis Muñoz Marín International Airport. One-way Prices start from CAD 64 including taxes and charges.

      • BOS10:26
        4h 5m
        Nonstop
        SJU15:31
        Tue, Jan 14|Boston - San Juan|Frontier Airlines
        CAD 64
        CAD 64

        Choose Frontier Airlines flights from Boston to San Juan. The one-way direct flight with Frontier Airlines departs from General Edward Lawrence Logan International Airport on Tue, Jan 14, arriving at Luis Muñoz Marín International Airport. One-way Prices start from CAD 64 including taxes and charges.

      • BOS10:26
        4h 5m
        Nonstop
        SJU15:31
        Mon, Jan 6|Boston - San Juan|Frontier Airlines
        CAD 64
        CAD 64

        Choose Frontier Airlines flights from Boston to San Juan. The one-way direct flight with Frontier Airlines departs from General Edward Lawrence Logan International Airport on Mon, Jan 6, arriving at Luis Muñoz Marín International Airport. One-way Prices start from CAD 64 including taxes and charges.

      • BOS10:03
        4h 4m
        Nonstop
        SJU15:07
        Wed, Jan 22|Boston - San Juan|Frontier Airlines
        CAD 65
        CAD 65

        Choose Frontier Airlines flights from Boston to San Juan. The one-way direct flight with Frontier Airlines departs from General Edward Lawrence Logan International Airport on Wed, Jan 22, arriving at Luis Muñoz Marín International Airport. One-way Prices start from CAD 65 including taxes and charges.

      • BOS09:51
        3h 58m
        Nonstop
        SJU14:49
        Mon, Jan 13|Boston - San Juan|Frontier Airlines
        CAD 65
        CAD 65

        Choose Frontier Airlines flights from Boston to San Juan. The one-way direct flight with Frontier Airlines departs from General Edward Lawrence Logan International Airport on Mon, Jan 13, arriving at Luis Muñoz Marín International Airport. One-way Prices start from CAD 65 including taxes and charges.

      • BOS10:03
        4h 4m
        Nonstop
        SJU15:07
        Tue, Jan 28|Boston - San Juan|Frontier Airlines
        CAD 65
        CAD 65

        Choose Frontier Airlines flights from Boston to San Juan. The one-way direct flight with Frontier Airlines departs from General Edward Lawrence Logan International Airport on Tue, Jan 28, arriving at Luis Muñoz Marín International Airport. One-way Prices start from CAD 65 including taxes and charges.

      • BOS10:06
        4h 5m
        Nonstop
        SJU15:11
        Sun, Jan 12|Boston - San Juan|Frontier Airlines
        CAD 66
        CAD 66

        Choose Frontier Airlines flights from Boston to San Juan. The one-way direct flight with Frontier Airlines departs from General Edward Lawrence Logan International Airport on Sun, Jan 12, arriving at Luis Muñoz Marín International Airport. One-way Prices start from CAD 66 including taxes and charges.

      • BOS10:03
        4h 4m
        Nonstop
        SJU15:07
        Tue, Feb 4|Boston - San Juan|Frontier Airlines
        CAD 66
        CAD 66

        Choose Frontier Airlines flights from Boston to San Juan. The one-way direct flight with Frontier Airlines departs from General Edward Lawrence Logan International Airport on Tue, Feb 4, arriving at Luis Muñoz Marín International Airport. One-way Prices start from CAD 66 including taxes and charges.

      • BOS01:00 pm
        3h 5m
        Nonstop
        SJU02:00 pm
        Mon, Dec 23|Boston - San Juan|Frontier Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to fly from Boston to San Juan?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Find Cheapest Airlines Flying from Boston to San Juan

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines
From CAD 48
Delta Air Lines
From CAD 91
Jetblue Airways
From CAD 116
American Airlines
From CAD 128
United Airlines
From CAD 153
Spirit Airlines
From CAD 169
Southwest Airlines
From CAD 278
Allegiant Air
From CAD 350

Find more flights and airlines

Alternative Routes for Boston to San Juan Flights

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Boston to San Juan.

  • Cheapest
    Frontier Airlines
    BOS
    10:16
    4h 5m
    Nonstop
    SJU
    15:21
    General Edward Lawrence Logan International Airport - Luis Muñoz Marín International Airport
    Sat, Jan 11Frontier Airlines
    CAD 48
  • Allegiant Air
    PSM
    10:30
    15h 19m
    1 transfer
    SJU
    02:49
    Portsmouth International Airport - Luis Muñoz Marín International Airport
    Tue, Dec 24Allegiant Air
    CAD 350
  • Allegiant Air
    PSM
    10:30
    15h 19m
    1 transfer
    SJU
    02:49
    Portsmouth International Airport - Luis Muñoz Marín International Airport
    Tue, Dec 24Allegiant Air
    CAD 350
    Find More Flights

FAQ

  • When are flight tickets from Boston (BOS) to San Juan (SJU) the cheapest?

    Airlines adjust prices for flights from Boston to San Juan based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much are flights from Boston (BOS) to San Juan (SJU) cost?

    According to Trip.com's data, the lowest price is around CAD 348.

  • How long is the flight from Boston (BOS) to San Juan (SJU)?

    It takes about 4 hours to fly from Boston (BOS) to San Juan (SJU).

  • What is the transportation method from the main airport to downtown in San Juan?

    • The distance from Luis Muñoz Marín International Airport to downtown is about 11km, by taxi about 30 minutes.

  • What are the most popular airlines that fly from Boston (BOS) to San Juan (SJU)?

  • What's the most popular airline for direct flights from Boston (BOS) to San Juan (SJU)?

    Spirit Airlines operates 1 direct flights from Boston (BOS) to San Juan (SJU).

  • How many airports in San Juan (SJU)?

How to find a cheap flight from Boston to San Juan

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Boston to San Juan. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information for Boston to San Juan Flights

Cheapest direct flight priceCAD 48
Cheapest return ticket priceCAD 124
Off-season travel monthNovember
Peak season for travelMarch
Flight distance2,701.02km
Average flight time4 hours
Popular airlineJetblue Airways

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