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Cheap flights from Boston to San Juan from $69

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to San Juan departing on 7/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Spirit Airlines Logo
10:03 am - 2:08 pmBOS-SJU
4h 05mnonstop
Spirit Airlines Logo
3:13 pm - 7:30 pmSJU-BOS
4h 17mnonstop
$149Spirit Airlines
Find Deal
Sun, Jul 27 - Thu, Aug 7
Spirit Airlines Logo
10:03 am - 2:08 pmBOS-SJU
4h 05mnonstop
Spirit Airlines Logo
1:21 am - 8:37 amSJU-BOS
7h 16m1 stop
$169Spirit Airlines
Find Deal
Sun, Jul 27 - Wed, Aug 6
Spirit Airlines Logo
7:26 pm - 12:02 pmBOS-SJU
16h 36m1 stop
Spirit Airlines Logo
3:13 pm - 7:30 pmSJU-BOS
4h 17mnonstop
$173Spirit Airlines
Find Deal
Sat, Aug 2 - Thu, Aug 7
Spirit Airlines Logo
7:26 pm - 12:02 pmBOS-SJU
16h 36m1 stop
Spirit Airlines Logo
3:13 pm - 7:30 pmSJU-BOS
4h 17mnonstop
$174Spirit Airlines
Find Deal
Sat, Aug 2 - Thu, Aug 7
Spirit Airlines Logo
6:10 am - 9:09 pmBOS-SJU
14h 59m1 stop
Spirit Airlines Logo
3:13 pm - 7:30 pmSJU-BOS
4h 17mnonstop
$175Spirit Airlines
Find Deal
Sun, Aug 3 - Thu, Aug 7
Spirit Airlines Logo
10:03 am - 2:08 pmBOS-SJU
4h 05mnonstop
Spirit Airlines Logo
3:13 pm - 7:30 pmSJU-BOS
4h 17mnonstop
$180Spirit Airlines
Find Deal
Sun, Jul 20 - Sun, Jul 27
Spirit Airlines Logo
10:03 am - 2:08 pmBOS-SJU
4h 05mnonstop
Spirit Airlines Logo
3:13 pm - 7:30 pmSJU-BOS
4h 17mnonstop
$181Spirit Airlines
Find Deal
Sun, Jul 20 - Sun, Jul 27
Spirit Airlines Logo
10:03 am - 2:08 pmBOS-SJU
4h 05mnonstop
Spirit Airlines Logo
3:13 pm - 7:30 pmSJU-BOS
4h 17mnonstop
$186Spirit Airlines
Find Deal
Sun, Jul 27 - Thu, Aug 7
Logo
6:00 am - 12:27 amBOS-SJU
18h 27m1 stop
Logo
9:01 pm - 8:58 amSJU-BOS
11h 57m1 stop
$207
Find Deal
Sat, Jul 26 - Sat, Aug 2
Frontier Logo
9:01 am - 11:59 pmBOS-SJU
14h 58m1 stop
Frontier Logo
9:30 pm - 8:35 amSJU-BOS
11h 05m1 stop
$227Frontier
Find Deal
Thu, Aug 7 - Thu, Aug 14

Spirit Airlines flights from Boston to San Juan Luis Munoz Marin Intl Airport

Our best Spirit Airlines deals on Boston to San Juan Luis Munoz Marin Intl Airport flight tickets
Spirit Airlines
Jul 27
BOS10:03 amBoston Logan Intl
4h 05m
SJU2:08 pmSan Juan Luis Munoz Marin Intl
Aug 7
SJU3:13 pmSan Juan Luis Munoz Marin Intl
4h 17m
BOS7:30 pmBoston Logan Intl
$149
Find similar
Spirit Airlines
Jul 19
BOS7:26 pmBoston Logan Intl
16h 36m
1 stop
SJU12:02 pmSan Juan Luis Munoz Marin Intl
Jul 27
SJU3:13 pmSan Juan Luis Munoz Marin Intl
4h 17m
BOS7:30 pmBoston Logan Intl
$165
Find similar
Spirit Airlines
Jul 27
BOS10:03 amBoston Logan Intl
4h 05m
SJU2:08 pmSan Juan Luis Munoz Marin Intl
Aug 6
SJU1:21 amSan Juan Luis Munoz Marin Intl
7h 16m
1 stop
BOS8:37 amBoston Logan Intl
$169
Find similar

Frontier flights from Boston to San Juan Luis Munoz Marin Intl Airport

Our best Frontier deals on Boston to San Juan Luis Munoz Marin Intl Airport flight tickets
Frontier
Aug 7
BOS9:01 amBoston Logan Intl
14h 58m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Aug 14
SJU9:30 pmSan Juan Luis Munoz Marin Intl
11h 05m
1 stop
BOS8:35 amBoston Logan Intl
$227
Find similar
Frontier
Jul 18
BOS6:00 amBoston Logan Intl
10h 00m
1 stop
SJU4:00 pmSan Juan Luis Munoz Marin Intl
Jul 23
SJU1:43 pmSan Juan Luis Munoz Marin Intl
18h 09m
1 stop
BOS7:52 amBoston Logan Intl
$250
Find similar

See travel insights to San Juan from

How to get the cheapest flight ticket from Boston to San Juan Luis Munoz Marin Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport?

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $213.

What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from Boston is on a Monday. momondo users have found tickets for Monday departures for as low as $282. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $321.

What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is in the morning when flights can be purchased for as low as $290. Flights in the evening are often more expensive with an average ticket price of $333.

What is the cheapest Boston Logan Intl to San Juan Luis Munoz Marin Intl flight route?

Fly from Boston Logan Intl to San Juan Luis Munoz Marin Intl for the best Boston Logan Intl - San Juan Luis Munoz Marin Intl flight prices

How far in advance should I book a flight to San Juan Luis Munoz Marin Intl Airport?

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $268 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Boston for as low as $219 on momondo.

What cabin class options are available on Boston Logan Intl to San Juan Luis Munoz Marin Intl flights?

There are 4 cabin classes available to choose from on Boston Logan Intl to San Juan Luis Munoz Marin Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to San Juan Luis Munoz Marin Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Boston to San Juan Luis Munoz Marin Intl Airport.

How have Boston to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of July 2025, prices for Boston to San Juan Luis Munoz Marin Intl Airport flights are approximately 46% cheaper when compared to flights at the same time last year.

When to book flights from Boston to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to San Juan Luis Munoz Marin Intl Airport (BOS to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to San Juan Luis Munoz Marin Intl Airport

Best Price Found

$69

Fastest flight time

4h 00m

Direct flights

Every day
The best one-way flight to San Juan Luis Munoz Marin Intl Airport from Boston in the past 72 hours is $69. The best round-trip flight deal from Boston to San Juan Luis Munoz Marin Intl Airport found on momondo in the last 72 hours is $149.
The fastest flight from Boston to San Juan Luis Munoz Marin Intl Airport takes 4h 00m
Direct flights go from Boston to San Juan Luis Munoz Marin Intl Airport every day.
Search flight deals

  • How far is Boston Logan Intl to San Juan Luis Munoz Marin Intl by plane?

    The distance between Boston Logan Intl and San Juan Luis Munoz Marin Intl is about 1678.1 mi. Flights usually cover this in 4h 05m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Boston Logan Intl Airport to San Juan Luis Munoz Marin Intl Airport are updated daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The necessary travel and health documents for your San Juan Luis Munoz Marin Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Boston to San Juan Luis Munoz Marin Intl Airport?

  • What is the most popular airline from Boston to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Boston to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Boston to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $76Free CancellationRating
5.9
3,271 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $96Free CancellationRating
6.3
8,055 reviews
Search Spirit Airlines flights
DeltaPriceFrom $141Free CancellationRating
8.0
7,951 reviews
Search Delta flights
JetBluePriceFrom $148Free CancellationRating
7.3
2,913 reviews
Search JetBlue flights
United AirlinesPriceFrom $204Free CancellationRating
7.4
8,846 reviews
Search United Airlines flights
American AirlinesPriceFrom $288Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $427Free CancellationRating
8.0
4,249 reviews
Search Southwest flights

  • Delta Flights From Boston to San Juan Luis Munoz Marin Intl Airport

    The lowest priced Delta flight from Boston to San Juan Luis Munoz Marin Intl Airport from the last 72 hours was $141. Generally, Delta has 3 flights on this route every week with an average price of $327. Delta is rated 8.0/10 by our users.

  • JetBlue Flights From Boston to San Juan Luis Munoz Marin Intl Airport

    The best JetBlue deal for Boston to San Juan Luis Munoz Marin Intl Airport flight tickets found on momondo in the last 72 hours was $148, round-trip. It should be noted that an average JetBlue flight deal for this route in this time was higher, at $341 round-trip. JetBlue operates 16 flights out of Boston into San Juan Luis Munoz Marin Intl Airport in an average week, so prices vary by time and availability. 2,910 JetBlue reviews by users on momondo have scored the airline at 7.3/10.

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Luquillo
Caguas
Humacao
Rio Grande
Bayamón

Why use momondo?

Why should I use momondo to find a flight deal from Boston to San Juan?

It is quick and easy to find Boston to San Juan flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Juan that suits you.

Can I find flights from Boston to San Juan with flexible booking policies on momondo?

All flight searches from Boston to San Juan on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Boston to San Juan?

Once all potential Boston to San Juan flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Boston to San Juan right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Juan, momondo offers a useful price alert feature which will track prices for flights to San Juan from Boston and alert you when they change.

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