Cheap flights from Boston (BOS) to San Juan from $59

This is the cheapest one-way flight price, found on 9/27. Prices may vary by date and flight preferences.
BOS — SJU
Oct 3 — Oct 101

How to find the cheapest flight from Boston (BOS) to San Juan

All the information you need to plan the best BOS to PR1 flight in 2023: compare Boston to San Juan flight prices with the expected peak season, weather and rainfall in San Juan.

Popular in

December

Cheapest in

May

Round-trip from

$252

One-way from

$96
High demand for flights, 29% potential price rise
Best time to find cheap flights, 28% potential price drop
From Boston Logan Intl to San Juan
One-way flight from Boston Logan Intl to San Juan

BOS - SJU

Price

$252 - $584

SJU

Temperature

77 - 82.4 °F

SJU

Rainfall

2.2 - 6.1 inches

How far in advance should I book a flight from Boston to San Juan?

To save on the cost of your flight from Boston to San Juan, book at least 34 days before your planned departure. Booking around this time can save you about 26% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $361 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $419.

What is the cheapest month to fly from Boston to San Juan?

The best pricing can be found in the month of May. Prices to San Juan from Boston average $346. You can even find prices in May for less than $346, as users have found deals to San Juan from as low as $186. The month of December appears to be one of the more expensive times to travel to San Juan from Boston. Flying in the targeted month can save you up to 40%.

When is the cheapest time to fly from Boston to San Juan (BOS - SJU)?

When flying from Boston to San Juan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Frontier flights from Boston to San Juan

Take a peek at the cheapest Frontier flights we've detected traveling from Boston to San Juan. Make sure to check back often as deals are often changing.

Cheap Spirit Airlines flights from Boston to San Juan

Browse through some of the cheapest Spirit Airlines flights traveling from Boston to San Juan. Check back soon if you're not seeing flights that suit your needs.

Cheap Boston to San Juan flights in September & October 2023

The best prices found for BOS to San Juan flights for September, October
Listed are some of the best fares we've found on flights departing from Boston to San Juan in 2023. More deals are always being added, so be sure to check back regularly.

Boston to San Juan 2023 flight deals

Cheap flights to San Juan from Boston found for this year
Listed are some of the best fares we've found on flights departing from Boston to San Juan in 2023. More deals are always being added, so be sure to check back regularly.

Non-stop flights to San Juan from Boston

Save time with Boston to San Juan direct flight deals
For a shorter flight, select one of these non-stop flights from Boston to San Juan. If you're looking for other options for flights from Boston to San Juan, make sure to update the search form at the top of page.

Boston to San Juan flights leaving soon

Late deals on return flights to San Juan from Boston, departing today and this week
Have a look at some of the last-minute flights available departing from Boston to San Juan. Users should examine the flight details to ensure there are no surprises.

One-way flights to San Juan from Boston

The cheapest one-way flights from Boston to San Juan
If you're seeking multiple options on one-way flights from Boston to San Juan, be sure to check out these deals, which are updated often. For those needing a return trip from Boston, there is a search form available above.

Find flights from Boston to San Juan within your budget

Use the slider to find flights from Boston to San Juan that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$118 - $266

Route

Depart

Return

Price

Boston Logan IntlSan Juan Luis Munoz Marin Intl

BOS - SJU

BOSSJU

Boston Logan Intl

Sat 10/28

1 stop13h 00m

San Juan Luis Munoz Marin Intl

Mon 10/30

1 stop7h 11m

Boston Logan IntlSan Juan Luis Munoz Marin Intl

BOS - SJU

BOSSJU

Boston Logan Intl

Wed 10/18

1 stop6h 59m

San Juan Luis Munoz Marin Intl

Tue 10/31

1 stop8h 40m

Boston Logan IntlSan Juan Luis Munoz Marin Intl

BOS - SJU

BOSSJU

Boston Logan Intl

Wed 11/1

Nonstop4h 08m

San Juan Luis Munoz Marin Intl

Mon 11/6

1 stop7h 13m

Boston Logan IntlSan Juan Luis Munoz Marin Intl

BOS - SJU

BOSSJU

Boston Logan Intl

Mon 12/4

1 stop16h 47m

San Juan Luis Munoz Marin Intl

Tue 12/5

1 stop16h 15m

Boston Logan IntlSan Juan Luis Munoz Marin Intl

BOS - SJU

BOSSJU

Boston Logan Intl

Wed 11/8

1 stop7h 43m

San Juan Luis Munoz Marin Intl

Thu 11/9

1 stop6h 48m

Boston Logan IntlSan Juan Luis Munoz Marin Intl

BOS - SJU

BOSSJU

Boston Logan Intl

Tue 10/24

1 stop6h 59m

San Juan Luis Munoz Marin Intl

Mon 10/30

1 stop7h 11m

Boston Logan IntlSan Juan Luis Munoz Marin Intl

BOS - SJU

BOSSJU

Boston Logan Intl

Thu 11/30

Nonstop4h 01m

San Juan Luis Munoz Marin Intl

Sun 12/10

Nonstop4h 14m

Boston Logan IntlSan Juan Luis Munoz Marin Intl

BOS - SJU

BOSSJU

Boston Logan Intl

Mon 1/1

Nonstop4h 11m

San Juan Luis Munoz Marin Intl

Wed 2/7

Nonstop4h 26m

Boston Logan IntlSan Juan Luis Munoz Marin Intl

BOS - SJU

BOSSJU

Boston Logan Intl

Tue 1/16

1 stop7h 06m

San Juan Luis Munoz Marin Intl

Mon 1/22

1 stop6h 34m

Flights are sorted by cheapest first

Deals found on 9/27

Reviews of airlines servicing San Juan

Read reviews from past customers who have flown Frontier, Spirit Airlines and JetBlue from Boston to San Juan. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
3,023 reviews

Boarding

8.0

Entertainment

7.8

Food

7.2

Crew

8.5

Comfort

7.9

Overall

7.9

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

Delta
7.9
Good
3,023 reviews
Delta
7.9
Good
3,023 reviews

Boarding

8.0

Entertainment

7.8

Food

7.2

Crew

8.5

Comfort

7.9

Overall

7.9

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

United Airlines
7.4
Good
1,890 reviews
Delta
7.9
Good
3,023 reviews

Boarding

8.0

Entertainment

7.8

Food

7.2

Crew

8.5

Comfort

7.9

Overall

7.9

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

American Airlines
7.2
Good
2,635 reviews
Delta
7.9
Good
3,023 reviews

Boarding

8.0

Entertainment

7.8

Food

7.2

Crew

8.5

Comfort

7.9

Overall

7.9

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

JetBlue
7.2
Good
781 reviews
Delta
7.9
Good
3,023 reviews

Boarding

8.0

Entertainment

7.8

Food

7.2

Crew

8.5

Comfort

7.9

Overall

7.9

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

Spirit Airlines
6.3
Okay
1,483 reviews
Delta
7.9
Good
3,023 reviews

Boarding

8.0

Entertainment

7.8

Food

7.2

Crew

8.5

Comfort

7.9

Overall

7.9

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

Related info for your journey

Useful info, stats and facts about Boston to San Juan flights.

What airport do you fly from for flights from Boston to San Juan?

If you book a flight to San Juan from Boston, you will be flying from Logan Intl, which is the city’s only airport. Boston Logan Intl (BOS) is located 2.6 mi from the center of Boston. There are 13 flights from Logan Intl to San Juan per day from 9 different airlines.

Can I find flights from Boston to San Juan for under $200 on Cheapflights?

Yes, there are multiple flights from Boston to San Juan for under $200. The cheapest flight booked recently is on Frontier for just $118, but on average you can expect to pay $137.

Are there nonstop flights from Boston to San Juan for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from Boston to San Juan under $200. A good price for a nonstop flight from Boston to San Juan is less than $149.

Are there last-minute flights available from Boston to San Juan for under $200?

There are currently 20+ open flights from Boston to San Juan within the next 7 days for less than $200.

What days are nonstop flights available from Boston to San Juan?

Nonstop flights are available for this route on the following days: Sunday, Monday.

How many flights depart from Boston to San Juan on average per day?

3 flight departures from Boston to San Juan per day on average.
Morning (6am - Noon) - 67% of flight departures
Evening (6pm - Midnight) - 33% of flight departures

How long is the flight from Boston to San Juan?

Frontier and Spirit Airlines can get you from Boston to San Juan in just under 13h. Your travel time can differ by up to 3h 47m. Boston and San Juan are separated by a distance of 1688 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Boston to San Juan round-trip?

According to our current data, Frontier ($118), and Spirit Airlines ($131) offers the cheapest pricing from Boston to San Juan. You may be able to fly from Boston to San Juan for 65% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Boston to San Juan one-way?

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $59. However, be on the lookout for offers from Spirit Airlines and JetBlue, as they are both options that can get you from Boston to San Juan for a low price.

What are the most popular airlines that fly from Boston to San Juan?

What are the most reliable airlines from Boston to San Juan?

The top 3 most reliable airlines when flying from Boston to San Juan are Delta (77%), Icelandair (61%) and EL AL (60%).

What are the cheapest flights from Boston to San Juan?

The cheapest flight price from Boston to San Juan is $65. On average you can expect to pay $702. The most popular route, (Boston Logan Intl - San Juan Luis Munoz Marin Intl), can usually be booked for $132.

What does BOS to SJU mean?

These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Boston Logan Intl Airport to San Juan Luis Munoz Marin Intl Airport flight would often be abbreviated as a BOS to SJU flight. San Juan Isla Grande Airport (SIG), Ponce Mercedita Airport (PSE), Vieques Airport (VQS), Culebra Airport (CPX), Ceiba J. Aponte de la Torre Airport (NRR) are other airports near this flight route and their unique identifiers/IATA codes.

Other flights from Boston

Top 9 airlines flying from Boston to San Juan

The chart below displays the airlines Cheapflights users traveling from Boston to San Juan choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$107Average$313FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
FrontierCheapest$123Average$223FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapest$151Average$351FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
JetBlueCheapest$155Average$603FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Endeavor AirlinesCheapest$214Average$455FlexibilityNo cancel feeOn-timeN/A
Search Endeavor Airlines flights
United AirlinesCheapest$220Average$531FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$282Average$512FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Alaska AirlinesCheapest$479Average$584FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Linear Air TaxiCheapest$14,669Average$72,649FlexibilityNo cancel feeOn-timeN/A
Search Linear Air Taxi flights

Hourly flight availability from Boston to San Juan

See what time of day planes typically take off from Boston to San Juan
1%of flight departuresEarly morningMidnight to 6 am
12%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
87%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Boston to San Juan

See how many times per day planes take to the skies headed from Boston to San Juan
Sunday16daily flights
Monday15daily flights
Tuesday13daily flights
Wednesday16daily flights
Thursday15daily flights
Friday13daily flights
Saturday7daily flights

Fly with Cheapflights

What makes Cheapflights the go-to destination for all your flight needs

How does Cheapflights help users find flights from Boston to San Juan?

When you search for this flight from Boston to San Juan, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Boston to San Juan?

Cheapflights simply makes it quick and affordable to book flights from Boston to San Juan by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Boston to San Juan with no change fees?

Need flexible booking options for your flight to San Juan from Boston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Boston to San Juan become cheaper?

Yes, and it’s super simple to set up. Perform a flight search above and use a valid email address to enable the Price Alert feature. That’s it!

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