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Cheap flights from San Juan to Boston from $89

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Juan to Boston departing on 12/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from San Juan to Boston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:15 pm - 6:39 pm
SJU
-
BOS
4h 24mnonstop
Multiple Airlines Logo
12:31 pm - 5:30 pm
BOS
-
SJU
3h 59mnonstop
$122Multiple Airlines
Mon, Dec 22 - Tue, Jan 6
Spirit Airlines Logo
3:15 pm - 6:39 pm
SJU
-
BOS
4h 24mnonstop
Spirit Airlines Logo
7:34 pm - 12:41 am
BOS
-
SJU
4h 07mnonstop
$123Spirit Airlines
Wed, Dec 24 - Mon, Jan 5
Frontier Logo
8:00 am - 11:23 am
SJU
-
BOS
4h 23mnonstop
Frontier Logo
6:00 am - 3:19 pm
BOS
-
SJU
8h 19m1 stop
$124Frontier
Tue, Dec 23 - Tue, Jan 6
Multiple Airlines Logo
4:35 pm - 1:13 am
SJU
-
BOS
9h 38m1 stop
Multiple Airlines Logo
3:18 pm - 8:24 pm
BOS
-
SJU
4h 06mnonstop
$126Multiple Airlines
Thu, Jan 15 - Mon, Jan 19
Multiple Airlines Logo
6:00 am - 9:23 am
SJU
-
BOS
4h 23mnonstop
Multiple Airlines Logo
5:34 am - 3:35 pm
BOS
-
SJU
9h 01m1 stop
$128Multiple Airlines
Sun, Dec 21 - Sun, Jan 11
Multiple Airlines Logo
8:00 am - 11:23 am
SJU
-
BOS
4h 23mnonstop
Multiple Airlines Logo
5:45 am - 10:05 pm
BOS
-
SJU
15h 20m1 stop
$129Multiple Airlines
Tue, Dec 23 - Sun, Jan 4
Frontier Logo
8:00 am - 11:23 am
SJU
-
BOS
4h 23mnonstop
Frontier Logo
8:08 am - 1:24 am
BOS
-
SJU
16h 16m1 stop
$130Frontier
Tue, Dec 23 - Mon, Jan 5
Multiple Airlines Logo
8:00 am - 11:23 am
SJU
-
BOS
4h 23mnonstop
Multiple Airlines Logo
5:45 am - 10:05 pm
BOS
-
SJU
15h 20m1 stop
$131Multiple Airlines
Thu, Dec 25 - Sun, Jan 4
Multiple Airlines Logo
2:59 am - 11:34 am
SJU
-
BOS
9h 35m1 stop
Multiple Airlines Logo
12:31 pm - 5:30 pm
BOS
-
SJU
3h 59mnonstop
$132Multiple Airlines
Wed, Dec 24 - Tue, Jan 6
Multiple Airlines Logo
10:52 am - 2:12 pm
SJU
-
BOS
4h 20mnonstop
Multiple Airlines Logo
12:25 pm - 1:59 pm
BOS
-
SJU
24h 34m1 stop
$133Multiple Airlines
Thu, Feb 12 - Sat, Feb 21

Frontier flights from San Juan to Boston

Our best Frontier deals on San Juan to Boston flight tickets
Frontier
Dec 23
SJU8:00 amSan Juan Luis Munoz Marin Intl
4h 23m
BOS11:23 amBoston Logan Intl
Jan 6
BOS6:00 amBoston Logan Intl
8h 19m
1 stop
SJU3:19 pmSan Juan Luis Munoz Marin Intl
$124
Find similar
Frontier
Dec 25
SJU8:00 amSan Juan Luis Munoz Marin Intl
4h 23m
BOS11:23 amBoston Logan Intl
Jan 12
BOS11:41 amBoston Logan Intl
14h 09m
1 stop
SJU2:50 amSan Juan Luis Munoz Marin Intl
$126
Find similar
Frontier
Dec 25
SJU2:44 pmSan Juan Luis Munoz Marin Intl
17h 39m
1 stop
BOS7:23 amBoston Logan Intl
Jan 6
BOS12:31 pmBoston Logan Intl
3h 59m
SJU5:30 pmSan Juan Luis Munoz Marin Intl
$140
Find similar

Spirit Airlines flights from San Juan to Boston

Our best Spirit Airlines deals on San Juan to Boston flight tickets
Spirit Airlines
Dec 25
SJU3:15 pmSan Juan Luis Munoz Marin Intl
4h 24m
BOS6:39 pmBoston Logan Intl
Jan 1
BOS7:34 pmBoston Logan Intl
4h 07m
SJU12:41 amSan Juan Luis Munoz Marin Intl
$123
Find similar
Spirit Airlines
Jan 23
SJU10:52 amSan Juan Luis Munoz Marin Intl
4h 20m
BOS2:12 pmBoston Logan Intl
Jan 25
BOS3:18 pmBoston Logan Intl
4h 06m
SJU8:24 pmSan Juan Luis Munoz Marin Intl
$135
Find similar
Spirit Airlines
Jan 30
SJU10:52 amSan Juan Luis Munoz Marin Intl
4h 20m
BOS2:12 pmBoston Logan Intl
Feb 11
BOS3:18 pmBoston Logan Intl
4h 06m
SJU8:24 pmSan Juan Luis Munoz Marin Intl
$136
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Juan to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 15, 2025.
Use the filters below to find and compare flights from San Juan to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Mon 12/22

3:15 pm-6:39 pm

Nonstop4h 24m

Boston Logan Intl

Tue 1/6

12:31 pm-5:30 pm

Nonstop3h 59m

$122

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Wed 12/24

3:15 pm-6:39 pm

Nonstop4h 24m

Boston Logan Intl

Mon 1/5

7:34 pm-12:41 am

Nonstop4h 07m

$123

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Tue 12/23

8:00 am-11:23 am

Nonstop4h 23m

Boston Logan Intl

Tue 1/6

6:00 am-3:19 pm

1 stop8h 19m

$124

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 1/15

4:35 pm-1:13 am

1 stop9h 38m

Boston Logan Intl

Mon 1/19

3:18 pm-8:24 pm

Nonstop4h 06m

$126

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Sun 12/21

6:00 am-9:23 am

Nonstop4h 23m

Boston Logan Intl

Sun 1/11

5:34 am-3:35 pm

1 stop9h 01m

$128

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Tue 12/23

8:00 am-11:23 am

Nonstop4h 23m

Boston Logan Intl

Sun 1/4

5:45 am-10:05 pm

1 stop15h 20m

$129

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Tue 12/23

8:00 am-11:23 am

Nonstop4h 23m

Boston Logan Intl

Mon 1/5

8:08 am-1:24 am

1 stop16h 16m

$130

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 12/25

8:00 am-11:23 am

Nonstop4h 23m

Boston Logan Intl

Sun 1/4

5:45 am-10:05 pm

1 stop15h 20m

$131

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Wed 12/24

2:59 am-11:34 am

1 stop9h 35m

Boston Logan Intl

Tue 1/6

12:31 pm-5:30 pm

Nonstop3h 59m

$132

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 2/12

10:52 am-2:12 pm

Nonstop4h 20m

Boston Logan Intl

Sat 2/21

12:25 pm-1:59 pm

1 stop24h 34m

$133

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Boston from

How to get the cheapest flight ticket from San Juan to Boston

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 typical price of a round-trip flight between San Juan and Boston?

What is the cheapest month to fly to Boston?

In general, February is the cheapest month to fly from San Juan to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $167. If you aren’t able to travel during the month of February, then book flights to Boston from San Juan during January instead. Flights to Boston in January, while not as cheap as those in February, still average around $196.

What is the cheapest day to depart on your flight to Boston?

The cheapest day to depart from San Juan to Boston is on a Saturday when prices can be found for as low as $250. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Monday is $347.

What is the cheapest time of day to depart on your flight to Boston?

According to our data, the cheapest time of day to fly to Boston is in the afternoon. momondo users have found flights departing from San Juan to Boston in the afternoon for as low as $240. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Boston, so prices are often more expensive at around $298 per ticket.

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

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

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

You are more likely to see cheaper flights to Boston from San Juan when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $254 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from San Juan for as low as $232 on momondo.

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

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

Cheap San Juan to Boston flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Juan to Boston

Fastest flight time

4h 05m

Direct flights

Every day

Airports in Boston

1 airport
The fastest flight from San Juan to Boston takes 4h 05m
Direct flights go from San Juan to Boston every day.
There is 1 airport in Boston. From San Juan there are direct flights to Boston Logan Intl (BOS).
Search flight deals

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

    San Juan and Boston Logan Intl are 1675.2 mi apart from one another. Typically, this will take 4h 05m by plane in normal conditions.

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

    Prices for flights from San Juan to Boston Logan Intl Airport are refreshed on a daily basis.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Juan to Boston Logan Intl Airport.

  • What documentation or ID do you need to fly to Boston Logan Intl Airport?

    The travel and health documents you'll need for your trip to Boston Logan Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Boston Logan Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from San Juan to Boston

Compare and see reviews for airlines that fly from San Juan to Boston with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $86Free CancellationRating
6.3
8,188 reviews
Search Spirit Airlines flights
FrontierPriceFrom $95Free CancellationRating
5.8
3,079 reviews
Search Frontier flights
DeltaPriceFrom $136Free CancellationRating
7.9
8,008 reviews
Search Delta flights
JetBluePriceFrom $180Free CancellationRating
7.2
2,895 reviews
Search JetBlue flights

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Hampton Beach
Salem
Ogunquit
Old Orchard Beach
Hampton
York Beach
Plymouth
Kennebunkport
South Yarmouth
Cambridge
Narragansett
Gloucester
Nashua
Falmouth
Laconia
Brockton
Concord
Sturbridge
Everett
Chatham

Why use momondo?

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

Finding the right flight to Boston from San Juan is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Boston quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for San Juan to Boston flights to just show those with flexible booking policies.

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

Once you have performed a search for San Juan to Boston flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of San Juan to Boston flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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