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Flights from Boston to San Juan
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Flights from Boston to San Juan Starting at €37

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

  • One way
  • Round-trip
      • Cheapest nonstop
        BOS11:18
        3h 57m
        Nonstop
        SJU16:15
        Wed, Mar 5|Boston - San Juan|Frontier Airlines
        €37€57
        35% OFF
        35% OFF
        €57€37

        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, Mar 5, arriving at Luis Muñoz Marín International Airport. One-way Prices start from €37 including taxes and charges.

      • BOS11:22
        3h 52m
        Nonstop
        SJU15:14
        Mon, Mar 24|Boston - San Juan|Frontier Airlines
        €46€57
        19% OFF
        19% OFF
        €57€46

        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, Mar 24, arriving at Luis Muñoz Marín International Airport. One-way Prices start from €46 including taxes and charges.

      • BOS10:18
        3h 57m
        Nonstop
        SJU15:15
        Mon, Feb 24|Boston - San Juan|Frontier Airlines
        €46€57
        19% OFF
        19% OFF
        €57€46

        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, Feb 24, arriving at Luis Muñoz Marín International Airport. One-way Prices start from €46 including taxes and charges.

      • BOS11:28
        4h 4m
        Nonstop
        SJU16:32
        Wed, Feb 26|Boston - San Juan|Frontier Airlines
        €47
        €47

        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, Feb 26, arriving at Luis Muñoz Marín International Airport. One-way Prices start from €47 including taxes and charges.

      • BOS11:26
        3h 56m
        Nonstop
        SJU15:22
        Sun, Apr 27|Boston - San Juan|Frontier Airlines
        €47
        €47

        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, Apr 27, arriving at Luis Muñoz Marín International Airport. One-way Prices start from €47 including taxes and charges.

      • BOS11:43
        4h 1m
        Nonstop
        SJU15:44
        Sun, May 4|Boston - San Juan|Frontier Airlines
        €47
        €47

        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, May 4, arriving at Luis Muñoz Marín International Airport. One-way Prices start from €47 including taxes and charges.

      • BOS11:43
        4h 1m
        Nonstop
        SJU15:44
        Sun, May 11|Boston - San Juan|Frontier Airlines
        €47
        €47

        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, May 11, arriving at Luis Muñoz Marín International Airport. One-way Prices start from €47 including taxes and charges.

      • BOS11:16
        3h 56m
        Nonstop
        SJU15:12
        Wed, Apr 2|Boston - San Juan|Frontier Airlines
        €47
        €47

        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, Apr 2, arriving at Luis Muñoz Marín International Airport. One-way Prices start from €47 including taxes and charges.

      • BOS11:16
        3h 56m
        Nonstop
        SJU15:12
        Wed, Apr 9|Boston - San Juan|Frontier Airlines
        €47
        €47

        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, Apr 9, arriving at Luis Muñoz Marín International Airport. One-way Prices start from €47 including taxes and charges.

      • BOS11:22
        3h 52m
        Nonstop
        SJU15:14
        Mon, Mar 31|Boston - San Juan|Frontier Airlines
        €47
        €47

        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, Mar 31, arriving at Luis Muñoz Marín International Airport. One-way Prices start from €47 including taxes and charges.

      • BOS01:00 pm
        3h 5m
        Nonstop
        SJU02:00 pm
        Tue, Feb 18|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.

Boston to San Juan flight time & flight schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. UA1734

    United Airlines

    05:35

    BOS

    1.7h

    07:19

    IAD

    SMTWTFS
    Search

  2. UA2021

    United Airlines

    08:40

    IAD

    3.9h

    12:34

    SJU

    SMTWTFS

  3. B6861

    Jetblue Airways

    08:00

    BOS

    4.1h

    Nonstop

    12:04

    SJU

    SMTWTFS
    Search

  4. F92167

    Frontier Airlines

    09:38

    BOS

    1.7h

    11:20

    PHL

    ---W---
    Search

  5. F91166

    Frontier Airlines

    16:57

    PHL

    3.7h

    21:41

    SJU

    S--WTF-

  6. F91435

    Frontier Airlines

    10:34

    BOS

    3.8h

    14:22

    MIA

    -M-W-FS
    Search

  7. F93378

    Frontier Airlines

    15:56

    MIA

    2.8h

    18:45

    SJU

    S--WTF-

  8. F93001

    Frontier Airlines

    11:18

    BOS

    4.0h

    Nonstop

    16:15

    SJU

    S-TWTFS
    Search

  9. F93511

    Frontier Airlines

    12:48

    BOS

    3.0h

    15:45

    ATL

    S-TWT-S
    Search

  10. F92082

    Frontier Airlines

    16:01

    ATL

    3.7h

    19:44

    SJU

    SMTWT-S

  11. F93011

    Frontier Airlines

    12:59

    BOS

    1.8h

    14:44

    PHL

    SM-WT-S
    Search

  12. F94462

    Frontier Airlines

    16:32

    PHL

    3.7h

    21:16

    SJU

    SMTWTFS

  13. F93011

    Frontier Airlines

    12:59

    BOS

    1.8h

    14:44

    PHL

    SM-WT-S
    Search

  14. F91166

    Frontier Airlines

    16:57

    PHL

    3.7h

    21:41

    SJU

    S--WTF-

  15. AA3102

    American Airlines

    16:27

    BOS

    4.6h

    20:04

    DFW

    SMTWTFS
    Search

  16. AA3074

    American Airlines

    22:30

    DFW

    4.4h

    03:55

    SJU

    SMTWTFS

  17. B6161

    Jetblue Airways

    22:15

    BOS

    4.0h

    Nonstop

    03:17

    SJU

    SMTWTFS
    Search
Find more flights and airlines

Find the best 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.

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 logoFrontier AirlinesJetblue Airways logoJetblue AirwaysDelta Air Lines logoDelta Air Lines

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 departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

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

    According to Trip.com's data, the lowest price is around €237.

  • How long does it take to fly from Boston (BOS) to San Juan (SJU) and what is the distance?

    It takes around 4 hours 2 minutes 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 11 km. It takes about 30 minutes by taxi.

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

Cheapest nonstop flight price€37
Cheapest round-trip ticket price€93
Off-season for travelMarch
Peak season for travelNovember
Flight distance2,701.02 km
Average flight time4 hours 2 minutes
Popular airlineJetblue Airways

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