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San Juan

Cheap flights from Boston (BOS) to San Juan

BOS — SJU
Oct 23 — Oct 301
Fri 10/23
Fri 10/30
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to San Juan are usually found in January or March, booked 47 days in advance, depart on a Sunday or Monday and return on a Friday

Find flight deals from Boston to San Juan

Popular in

July

Cheapest in

January

Average price

$321
Highest demand for flights based on searches. 16% potential increase in price ($69 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Best time to book a flight from Boston to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Boston with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Boston to San Juan

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

The best time to book flights from Boston to San Juan is 46 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Boston to San Juan?

Currently, January is the cheapest month in which you can book a flight from Boston to San Juan (average of $277). Flying from Boston to San Juan in July is currently the most expensive (average of $463). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to SJU?

A simple way to save on the total cost of your ticket is to fly from Boston to San Juan at noon. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight in the morning.

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

Travelers seeking maximum savings on their Boston to San Juan flight should consider departing on Tuesday at noon when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing San Juan

Get a feel of what it's like to fly with Delta,United Airlines, andJetBlue from Boston to San Juan by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,591 reviews

Boarding

8.1

Entertainment

7.8

Overall

7.8

Comfort

7.8

Crew

8.5

Food

7.2

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

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
7.8
Good
8,591 reviews
Delta
7.8
Good
8,591 reviews

Boarding

8.1

Entertainment

7.8

Overall

7.8

Comfort

7.8

Crew

8.5

Food

7.2

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

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
10,226 reviews
Delta
7.8
Good
8,591 reviews

Boarding

8.1

Entertainment

7.8

Overall

7.8

Comfort

7.8

Crew

8.5

Food

7.2

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

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
7.1
Good
3,038 reviews
Delta
7.8
Good
8,591 reviews

Boarding

8.1

Entertainment

7.8

Overall

7.8

Comfort

7.8

Crew

8.5

Food

7.2

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

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
7.0
Good
12,075 reviews
Delta
7.8
Good
8,591 reviews

Boarding

8.1

Entertainment

7.8

Overall

7.8

Comfort

7.8

Crew

8.5

Food

7.2

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
Frontier
5.6
Fair
2,579 reviews
Delta
7.8
Good
8,591 reviews

Boarding

8.1

Entertainment

7.8

Overall

7.8

Comfort

7.8

Crew

8.5

Food

7.2

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

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

  • 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 4 flights from Logan Intl to San Juan per day from 6 different airlines.

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

    According to our current data, Frontier ($86), Delta ($161), and JetBlue ($176) offers the cheapest pricing from Boston to San Juan. You may be able to fly from Boston to San Juan for 76% 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 $61. However, be on the lookout for offers from JetBlue and Delta, as they are both options that can get you from Boston to San Juan for a low price.

  • 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 EL AL (94%), Delta (85%) and TAP AIR PORTUGAL (70%).

  • What are the cheapest flights from Boston to San Juan?

    The cheapest flight price from Boston to San Juan is $174. On average you can expect to pay $628. The most popular route, (Boston Logan Intl - San Juan Luis Munoz Marin Intl), can usually be booked for $283.

  • Can I find deals for flights from Boston to San Juan that include hotel bookings?

    Yes. In addition to deals on Boston to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to San Juan.

  • Can I find deals for business class flights from Boston to San Juan?

    Yes. Cheapflights offers flight deals from Boston to San Juan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to San Juan?

    Currently, January is the cheapest month in which you can book a flight from Boston to San Juan (average of $277). Flying from Boston to San Juan in July is currently the most expensive (average of $463). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from Boston to San Juan

AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$86Average$292FlexibilityNo cancel feeOn-time62%
DeltaCheapest$161Average$393FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$176Average$580FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$212Average$392FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$259Average$459FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$313Average$541FlexibilityNo cancel feeOn-time63%

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