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Cheap flights from Boston (BOS) to San Juan (SJU)

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

What is the cheapest day to fly round-trip from Boston to San Juan?

Friday flights are found to be more expensive to fly from Boston to San Juan. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Juan.

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

Travelers have found it’s best to book a flight 41 days in advance to save up to 11% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 41 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Boston to San Juan 1-2 weeks in advance for as low as $380, or $415 for flights within the next 24 hours.

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

Flights from Boston to San Juan lean towards being more expensive in December. Prices are generally better when you fly from Boston to San Juan in September, with the cheapest ticket starting at $194.

Cheap flights from Boston to San Juan in July, August 2020

The best prices found for BOS to SJU flights for July, August
22 Jul - 28 Jul
$89pp
BOS
Boston Logan Intl
Spirit Airlines
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Spirit Airlines
 
1 STOP
BOS
Boston Logan Intl
22 Jul - 4 Aug
$109pp
BOS
Boston Logan Intl
Spirit Airlines
Non-Stop
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Spirit Airlines
 
1 STOP
BOS
Boston Logan Intl
7 Jul - 14 Jul
$110pp
BOS
Boston Logan Intl
Spirit Airlines
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Spirit Airlines
 
1 STOP
BOS
Boston Logan Intl

Boston to San Juan 2020 flight deals

Cheap flights to San Juan from Boston found for this year
22 Jul - 28 Jul
$89pp
BOS
Boston Logan Intl
Spirit Airlines
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Spirit Airlines
 
1 STOP
BOS
Boston Logan Intl
4 Aug - 11 Aug
$96pp
BOS
Boston Logan Intl
Spirit Airlines
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Spirit Airlines
 
1 STOP
BOS
Boston Logan Intl
22 Jul - 4 Aug
$109pp
BOS
Boston Logan Intl
Spirit Airlines
Non-Stop
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Spirit Airlines
 
1 STOP
BOS
Boston Logan Intl

Non-stop flights to San Juan from Boston

Save time with Boston to San Juan direct flight deals
22 Jul - 28 Jul
$122pp
BOS
Boston Logan Intl
Spirit Airlines
Non-Stop
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Spirit Airlines
Non-Stop
BOS
Boston Logan Intl
18 Aug - 22 Aug
$128pp
BOS
Boston Logan Intl
Spirit Airlines
Non-Stop
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Spirit Airlines
Non-Stop
BOS
Boston Logan Intl
5 Aug - 12 Aug
$129pp
BOS
Boston Logan Intl
Spirit Airlines
Non-Stop
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Spirit Airlines
Non-Stop
BOS
Boston Logan Intl

Last minute flights from Boston to San Juan

Late deals on round-trip flights to San Juan from Boston, departing today and this week
28 Jun - 15 Jul
$230pp
BOS
Boston Logan Intl
Multiple Airlines
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Spirit Airlines
Non-Stop
BOS
Boston Logan Intl
28 Jun - 14 Jul
$258pp
BOS
Boston Logan Intl
Multiple Airlines
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Spirit Airlines
 
1 STOP
BOS
Boston Logan Intl
28 Jun - 3 Jul
$266pp
BOS
Boston Logan Intl
Multiple Airlines
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Spirit Airlines
Non-Stop
BOS
Boston Logan Intl

One-way flights to San Juan from Boston

The cheapest one-way flights from Boston to San Juan
6:25 am - 10:47 am
Spirit Airlines
Nonstop
4h 22m
BOS - SJU
Spirit Airlines
$61
FlyFar
6:25 am - 10:47 am
Spirit Airlines
Nonstop
4h 22m
BOS - SJU
Spirit Airlines
$66
SmartFares
6:25 am - 10:47 am
Spirit Airlines
Nonstop
4h 22m
BOS - SJU
Spirit Airlines
$67
FlyFar

Related info for your journey

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

Flight FAQs

From Boston to San Juan

Are flight prices decreasing from Boston to San Juan due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Boston and San Juan for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Boston to San Juan for under $100 on Cheapflights?

Yes, there are multiple flights from Boston to San Juan for under $100. The cheapest flight booked recently is on Spirit Airlines for just $89, but on average you can expect to pay $121.

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 $144.

Are there last-minute flights available from Boston to San Juan for under $300?

There are currently 20+ open flights from Boston to San Juan within the next 7 days for less than $300.

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

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

How popular is this flight route?

This flight path from Boston Logan Intl to San Juan was viewed by 1,553 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What is the cheapest airline for this route?

When searching, try setting your filters to view flights for JetBlue Airways, as currently they have the cheapest options available from Boston to San Juan. On average you can find 108 flights for this flight path daily.

How long does the flight from Boston to San Juan take?

A nonstop flight takes up to 4 hours, covering a distance of 1,049 miles.

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

On average, you can expect to see 4 flights from Boston Logan Intl to San Juan a day.
Morning (6am - Noon) - 25% of flight departures
Evening (6pm - Midnight) - 75% of flight departures

Is Boston weather warmer or cooler than San Juan?

Our data indicates that the weather will be 90 °F on average in the month of June. The temperature in San Juan is typically hotter than in Boston. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

Alternative routes for Boston to San Juan

Destination information for San Juan

Things to know before you go. Useful info for your trip from Boston to San Juan
Today's exchange rate
$1 = $1.00
Flight duration
4h 26m
Average temperature for July in San Juan
89.6 °F
Avg rainfall for July in San Juan
4.7 ″

Airports servicing Boston

Airports servicing San Juan

San Juan Isla Grande (SIG)

Hourly flight availability from Boston to San Juan

Morning 6 AM to noon 57% of BOS to SJU departures
Afternoon Noon to 6 PM 21% of BOS to SJU departures
Evening 6 PM to midnight 21% of BOS to SJU departures
Early morning Midnight to 6 AM 1% of BOS to SJU departures
Midnight
6 AM
Noon
6 PM