Cheap flights from Boston to San Juan Luis Munoz Marin Intl Airport
BOS — SJU
17 Mar — 24 Mar1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Boston Logan Intl to San Juan Luis Munoz Marin Intl are usually found in March or January, booked 47 days in advance, depart on a Thursday or Tuesday and return on a Monday
Find flight deals from Boston to Luis Munoz Marin Intl
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 February 2026.
Popular in
December
Cheapest in
March
Average price
£219
Good round-trip deal
£148 or less
Highest demand for flights based on searches. 8% potential increase in price (£16 potential increase over avg. return price).
Best time to book a flight from Boston to Luis Munoz Marin Intl
Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Boston with our price prediction graph.
BOS-SJU
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Boston to San Juan Luis Munoz Marin Intl Airport
Prices
Airlines
Delays
How far ahead should I book a flight from Boston to San Juan Luis Munoz Marin Intl Airport?
Use this chart to determine the optimal time to book a return flight from Boston to Luis Munoz Marin Intl. Price data was last updated on 13 February 2026.
To ensure you get the cheapest price possible for a flight from Boston to San Juan Luis Munoz Marin Intl Airport, you should look to book at least 47 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Boston to San Juan Luis Munoz Marin Intl Airport?
Currently, January is the cheapest month in which you can book a flight from Boston to San Juan Luis Munoz Marin Intl Airport (average of £68). Flying from Boston to San Juan Luis Munoz Marin Intl Airport in November is currently the most expensive (average of £130). 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?
Find hourly flight availability from Boston to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 February 2026.
It’s optimal to fly from Boston to San Juan Luis Munoz Marin Intl Airport in the afternoon. By choosing this option you can save up to 53% on the cost of your flight, compared to a flight at midday.
Weekly flight availability from Boston to San Juan Luis Munoz Marin Intl Airport
Explore weekly flight availability from Boston to Luis Munoz Marin Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 February 2026.
The most flights from BOS to SJU are scheduled on a Sunday (24 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (16 on average).
How often are flights from Boston to San Juan delayed?
About 24% of weekly flights between Boston and San Juan have experienced delays in the past year, with the average delay time being 150 minutes.
What is the most punctual flight time for Boston to San Juan flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Boston to San Juan flights?
Over the past year, Delta have had the lowest number of delays on this route, with just 18% of flights being delayed.
Reviews of airlines servicing Luis Munoz Marin Intl
Get insights into the airlines that provide service to Luis Munoz Marin Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Luis Munoz Marin Intl. Reviews last updated 15 February 2026.
Get a feel of what it's like to fly with JetBlue from Boston to San Juan Luis Munoz Marin Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
We boarded an hour and a half late and the crew was very salty when asked why. Still got no reason other than someone took the intended plane? Won't fly with them again.
We boarded an hour and a half late and the crew was very salty when asked why. Still got no reason other than someone took the intended plane? Won't fly with them again.
Related info for your journey
Find useful and relevant information for your journey from Boston to Luis Munoz Marin Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly from for flights from Boston to San Juan Luis Munoz Marin Intl?
Most people fly from Boston Logan Intl (BOS) if they book a flight from Boston to San Juan Luis Munoz Marin Intl. On average, Logan Intl has 20 outbound flights to San Juan Luis Munoz Marin Intl per day from 1 airline. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.
What is the cheapest airline to fly from Boston to San Juan Luis Munoz Marin Intl Airport round-trip?
JetBlue, at £72, was found to be the cheapest airline from Boston to San Juan Luis Munoz Marin Intl Airport.. JetBlue is currently priced 67% below the average price you’ll pay for this route.
What are the most reliable airlines from Boston to San Juan Luis Munoz Marin Intl Airport?
The top 3 most reliable airlines when flying from Boston to San Juan Luis Munoz Marin Intl Airport are Delta (73%), Turkish Airlines (60%) and EL AL (56%).
Can I find deals for flights from Boston to Luis Munoz Marin Intl that include hotel bookings?
Yes. In addition to deals on Boston to Luis Munoz Marin Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Boston to Luis Munoz Marin Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Luis Munoz Marin Intl.
Can I find deals for business class flights from Boston to Luis Munoz Marin Intl?
Yes. Cheapflights offers flight deals from Boston to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport?
Currently, January is the cheapest month in which you can book a flight from Boston to San Juan Luis Munoz Marin Intl Airport (average of £68). Flying from Boston to San Juan Luis Munoz Marin Intl Airport in November is currently the most expensive (average of £130). 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.
Explore flights to Luis Munoz Marin Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 15 February 2026.
Top airline flying from Boston to Luis Munoz Marin Intl
Discover the top airline that operate flights from Boston to Luis Munoz Marin Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 February 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Boston to Luis Munoz Marin Intl?
When you search for this flight from Boston to Luis Munoz Marin Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Boston to Luis Munoz Marin Intl?
Cheapflights simply makes it quick and affordable to book flights from Boston to Luis Munoz Marin Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from Boston to Luis Munoz Marin Intl with no change fees?
Yes! Cheapflights helps users easily find flights from Boston to Luis Munoz Marin Intl with no change fees.
Can Cheapflights notify me if prices for flights from Boston to Luis Munoz Marin Intl become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Luis Munoz Marin Intl from Boston today and book when prices fit your budget.
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyse navigation, to offer and measure personalised advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review your choices and withdraw your consent at any time by clicking the ’Privacy Preferences’ link in the page side navigation.