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Cheap flights from Boston to San Juan from $42

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 1/7. 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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Find the cheapest flights from Boston to San Juan

Cheap round-trip flights

These are some of the best round-trip flight deals from Boston to San Juan that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Boston to San Juan.

Cheap last minute flights

Planning a quick getaway from Boston to San Juan? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to San Juan, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Boston to San Juan

Find recent round-trip train or bus tickets from Boston to San Juan.

All round-trip flight deals to San Juan

The cheapest plane tickets to San Juan found on KAYAK recently.
10:26 am - 3:31 pmBOS-SJU
4h 05mnonstop
6:00 am - 9:26 amSJU-BOS
4h 26mnonstop
$92Frontier
Find Deal
Tue, Jan 7 - Wed, Jan 15
10:03 am - 3:03 pmBOS-SJU
4h 00mnonstop
3:58 pm - 7:32 pmSJU-BOS
4h 34mnonstop
$93Spirit Airlines
Find Deal
Sat, Feb 22 - Tue, Feb 25
10:03 am - 3:07 pmBOS-SJU
4h 04mnonstop
7:00 am - 10:18 amSJU-BOS
4h 18mnonstop
$94Frontier
Find Deal
Tue, Feb 11 - Wed, Feb 19
12:43 pm - 5:53 pmBOS-SJU
4h 10mnonstop
6:14 am - 3:27 pmSJU-BOS
10h 13m1 stop
$95Spirit Airlines
Find Deal
Tue, Jan 7 - Wed, Jan 15
10:03 am - 3:03 pmBOS-SJU
4h 00mnonstop
6:00 am - 9:18 amSJU-BOS
4h 18mnonstop
Sun, Feb 23 - Fri, Feb 28
10:03 am - 3:03 pmBOS-SJU
4h 00mnonstop
7:00 am - 10:18 amSJU-BOS
4h 18mnonstop
Tue, Feb 25 - Thu, Feb 27
10:03 am - 3:07 pmBOS-SJU
4h 04mnonstop
7:00 am - 10:18 amSJU-BOS
4h 18mnonstop
$99Frontier
Find Deal
Mon, Feb 3 - Wed, Feb 12
10:30 pm - 3:25 amBOS-SJU
3h 55mnonstop
6:01 am - 1:12 pmSJU-BOS
8h 11m1 stop
$223JetBlue
Find Deal
Fri, Jan 10 - Sun, Jan 12
10:57 am - 12:36 amBOS-SJU
12h 39m2 stops
2:05 am - 8:13 amSJU-BOS
7h 08m1 stop
$232United Airlines
Find Deal
Mon, Jan 13 - Thu, Jan 16
11:25 am - 4:39 pmBOS-SJU
4h 14mnonstop
8:00 am - 11:14 amSJU-BOS
4h 14mnonstop
$243JetBlue
Find Deal
Fri, Jan 17 - Thu, Jan 23
12:43 pm - 5:53 pmBOS-SJU
4h 10mnonstop
$42Spirit Airlines
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Tue, Jan 7
12:43 pm - 5:53 pmBOS-SJU
4h 10mnonstop
$46Spirit Airlines
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Tue, Jan 7
10:26 am - 3:31 pmBOS-SJU
4h 05mnonstop
$48Frontier
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Tue, Jan 7
10:06 am - 3:11 pmBOS-SJU
4h 05mnonstop
$50Frontier
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Sun, Jan 12
3:00 pm - 7:56 pmBOS-SJU
3h 56mnonstop
$122JetBlue
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Tue, Jan 21
8:00 am - 11:10 pmBOS-SJU
14h 10m1 stop
$126American Airlines
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Tue, Dec 31
8:10 am - 12:13 pmBOS-SJU
4h 03mnonstop
$142Delta
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Tue, Mar 18
10:40 am - 7:15 pmBOS-SJU
8h 35m1 stop
$181JetBlue
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Wed, Mar 19
8:00 am - 11:55 pmBOS-SJU
14h 55m1 stop
$186American Airlines
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Sun, Dec 29
8:10 am - 1:18 pmBOS-SJU
4h 08mnonstop
$192Delta
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Fri, Jan 24
6:00 am - 4:25 pmBOS-SJU
9h 25m1 stop
6:00 am - 9:26 amSJU-BOS
4h 26mnonstop
$309Frontier
Find Deal
Thu, Dec 19 - Wed, Jan 15
6:00 am - 4:25 pmBOS-SJU
9h 25m1 stop
5:10 pm - 12:30 amSJU-BOS
8h 20m1 stop
$313Frontier
Find Deal
Thu, Dec 19 - Wed, Jan 15
12:43 pm - 5:53 pmBOS-SJU
4h 10mnonstop
11:25 pm - 9:58 amSJU-BOS
11h 33m1 stop
$323Spirit Airlines
Find Deal
Thu, Dec 19 - Sun, Dec 22
6:30 am - 5:40 pmBOS-SJU
10h 10m1 stop
11:25 pm - 9:58 amSJU-BOS
11h 33m1 stop
$335Spirit Airlines
Find Deal
Thu, Dec 19 - Sun, Dec 22
12:43 pm - 5:53 pmBOS-SJU
4h 10mnonstop
5:35 am - 9:03 amSJU-BOS
4h 28mnonstop
Thu, Dec 19 - Fri, Jan 24
8:00 am - 1:05 pmBOS-SJU
4h 05mnonstop
5:40 pm - 9:03 pmSJU-BOS
4h 23mnonstop
$433Delta
Find Deal
Fri, Dec 20 - Sun, Dec 22
8:00 am - 1:05 pmBOS-SJU
4h 05mnonstop
3:33 pm - 11:51 pmSJU-BOS
9h 18m1 stop
$438Delta
Find Deal
Fri, Dec 20 - Mon, Dec 23
5:00 am - 5:30 pmBOS-SJU
11h 30m1 stop
6:20 am - 4:36 pmSJU-BOS
11h 16m1 stop
$487American Airlines
Find Deal
Sun, Dec 22 - Thu, Dec 26
10:50 pm - 3:48 amBOS-SJU
3h 58mnonstop
7:00 am - 10:14 amSJU-BOS
4h 14mnonstop
$492JetBlue
Find Deal
Sun, Dec 22 - Thu, Dec 26
8:55 am - 8:18 pmBOS-SJU
10h 23m1 stop
9:10 pm - 12:24 amSJU-BOS
4h 14mnonstop
$505JetBlue
Find Deal
Mon, Dec 23 - Sat, Dec 28
10:26 am - 3:31 pmBOS-SJU
4h 05mnonstop
6:00 am - 9:26 amSJU-BOS
4h 26mnonstop
$92Frontier
Find Deal
Tue, Jan 7 - Wed, Jan 15
10:03 am - 3:03 pmBOS-SJU
4h 00mnonstop
3:58 pm - 7:32 pmSJU-BOS
4h 34mnonstop
$93Spirit Airlines
Find Deal
Sat, Feb 22 - Tue, Feb 25
10:18 am - 3:15 pmBOS-SJU
3h 57mnonstop
7:00 am - 10:18 amSJU-BOS
4h 18mnonstop
$94Frontier
Find Deal
Mon, Feb 24 - Thu, Feb 27
10:03 am - 3:03 pmBOS-SJU
4h 00mnonstop
3:58 pm - 7:32 pmSJU-BOS
4h 34mnonstop
$95Spirit Airlines
Find Deal
Fri, Feb 21 - Tue, Feb 25
10:03 am - 3:03 pmBOS-SJU
4h 00mnonstop
6:00 am - 9:18 amSJU-BOS
4h 18mnonstop
Sun, Feb 23 - Fri, Feb 28
10:03 am - 3:03 pmBOS-SJU
4h 00mnonstop
7:00 am - 10:18 amSJU-BOS
4h 18mnonstop
Tue, Feb 25 - Thu, Feb 27
10:03 am - 3:07 pmBOS-SJU
4h 04mnonstop
7:00 am - 10:18 amSJU-BOS
4h 18mnonstop
$99Frontier
Find Deal
Mon, Feb 3 - Wed, Feb 12
10:26 am - 3:31 pmBOS-SJU
4h 05mnonstop
6:00 am - 9:26 amSJU-BOS
4h 26mnonstop
$101Frontier
Find Deal
Tue, Jan 7 - Wed, Jan 15
10:50 pm - 3:48 amBOS-SJU
3h 58mnonstop
7:30 am - 10:44 amSJU-BOS
4h 14mnonstop
$224JetBlue
Find Deal
Mon, Jan 6 - Wed, Jan 15
11:25 am - 4:39 pmBOS-SJU
4h 14mnonstop
5:00 am - 8:17 amSJU-BOS
4h 17mnonstop
$243JetBlue
Find Deal
Fri, Jan 17 - Fri, Jan 24

Frontier flights from Boston to San Juan

Our best Frontier deals on Boston to San Juan flight tickets
Frontier
Jan 7
BOS10:26 amBoston Logan Intl
4h 05m
SJU3:31 pmSan Juan Luis Munoz Marin Intl
Jan 15
SJU6:00 amSan Juan Luis Munoz Marin Intl
4h 26m
BOS9:26 amBoston Logan Intl
Frontier
Feb 11
BOS10:03 amBoston Logan Intl
4h 04m
SJU3:07 pmSan Juan Luis Munoz Marin Intl
Feb 19
SJU7:00 amSan Juan Luis Munoz Marin Intl
4h 18m
BOS10:18 amBoston Logan Intl
Frontier
Feb 3
BOS10:03 amBoston Logan Intl
4h 04m
SJU3:07 pmSan Juan Luis Munoz Marin Intl
Feb 12
SJU7:00 amSan Juan Luis Munoz Marin Intl
4h 18m
BOS10:18 amBoston Logan Intl

Spirit Airlines flights from Boston to San Juan

Our best Spirit Airlines deals on Boston to San Juan flight tickets
Spirit Airlines
Feb 22
BOS10:03 amBoston Logan Intl
4h 00m
SJU3:03 pmSan Juan Luis Munoz Marin Intl
Feb 25
SJU3:58 pmSan Juan Luis Munoz Marin Intl
4h 34m
BOS7:32 pmBoston Logan Intl
Spirit Airlines
Jan 7
BOS12:43 pmBoston Logan Intl
4h 10m
SJU5:53 pmSan Juan Luis Munoz Marin Intl
Jan 15
SJU6:14 amSan Juan Luis Munoz Marin Intl
10h 13m
1 stop
BOS3:27 pmBoston Logan Intl
Spirit Airlines
Jan 7
BOS12:43 pmBoston Logan Intl
4h 10m
SJU5:53 pmSan Juan Luis Munoz Marin Intl
Jan 15
SJU6:14 amSan Juan Luis Munoz Marin Intl
10h 13m
1 stop
BOS3:27 pmBoston Logan Intl

See travel insights to San Juan from

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

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 Boston and San Juan?

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in September, then August is your next best option. Flight prices from Boston to San Juan during August average around $213.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart from Boston to San Juan is on a Tuesday when prices can be found for as low as $252. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $303.

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

The cheapest time of day to fly to San Juan is in the morning when flights can be purchased for as low as $283. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $283 on average. Flights to San Juan from Boston in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

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

We recommend purchasing flights from Boston to San Juan 27 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to San Juan for $275. However, in the past 72 hours, people saw flights from Boston for as low as $214.

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

There are 4 cabin classes available to choose from on Boston Logan Intl to San Juan 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 flights?

You could potentially save up to 26% on your flight if you consider stops on a Boston to San Juan flight.

Cheap Boston to San Juan flight deals and tips

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

Best Price Found

$42

Fastest flight time

3h 55m

Direct flights

Every day

Airports in San Juan

1 airport
The best one-way flight to San Juan from Boston in the past 72 hours is $42. The best round-trip flight deal from Boston to San Juan found on momondo in the last 72 hours is $92.
The fastest flight from Boston to San Juan takes 3h 55m
Direct flights go from Boston to San Juan every day.
There is 1 airport near San Juan: San Juan Luis Munoz Marin Intl (SJU)

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

    San Juan is 1675.2 mi away from Boston Logan Intl. By plane, this route typically takes 3h 55m.

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

    Prices for flights from Boston Logan Intl Airport to San Juan were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to San Juan.

  • What documentation or ID do you need to fly to San Juan?

    The travel and health documents required for your trip to San Juan can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Juan. We always recommend checking with your airline or a trusted third party such as IATA to get advice.


Best airlines flying from Boston to San Juan

Compare and see reviews for airlines that fly from Boston to San Juan with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $73Free CancellationRating
6.1
3,479 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $99Free CancellationRating
6.3
8,119 reviews
Search Spirit Airlines flights
DeltaPriceFrom $142Free CancellationRating
8.0
8,604 reviews
Search Delta flights
JetBluePriceFrom $143Free CancellationRating
7.4
3,279 reviews
Search JetBlue flights
American AirlinesPriceFrom $244Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $312Free CancellationRating
7.4
9,059 reviews
Search United Airlines flights
SouthwestPriceFrom $427Free CancellationRating
8.1
4,848 reviews
Search Southwest flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to San Juan. momondo saves you time and could save you money on your trip.

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

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

Price alerts on flights to San Juan from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 7.1 mi from San Juan