Cheap Flights from Boston (BOS) to San Juan (SIG)

Popular airlines from Logan International Airport (BOS) to San Juan (SIG-Fernando Luis Ribas Dominicci)

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Alternative airports near San Juan

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Luis Munoz Marin Intl. SJU. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $281
SJU
Luis Munoz Marin Intl.
Cheapest
Average driving time to city center16 min
Flights from $281

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Fernando Luis Ribas Dominicci Airport (SIG) cost?
Get a cheap one-way flight or cheap return flight from Logan Intl. Airport (BOS) to Fernando Luis Ribas Dominicci Airport (SIG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Logan Intl. Airport (BOS) to Fernando Luis Ribas Dominicci Airport (SIG)?
Flying in is a good way to save, as it's the cheapest month for flights between BOS and SIG. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Logan Intl. Airport (BOS) to Fernando Luis Ribas Dominicci Airport (SIG)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll take you from BOS to SIG. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Logan Intl. Airport (BOS) to Fernando Luis Ribas Dominicci Airport (SIG)?
Nonstop flights from Logan Intl. Airport (BOS) to Fernando Luis Ribas Dominicci Airport (SIG) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BOS to SIG?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can change depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Logan Intl. Airport (BOS) to Fernando Luis Ribas Dominicci Airport (SIG)?
Book a flight from Logan Intl. Airport (BOS) to Fernando Luis Ribas Dominicci Airport (SIG) that leaves before 3 PM to reduce the risk of cancellations. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Logan Intl. Airport (BOS) to Fernando Luis Ribas Dominicci Airport (SIG) last-minute?
Waiting until just before your departure to book a flight from BOS to SIG often results in higher prices. While you might find some last-minute offers, they aren't always guaranteed. Allow some flexibility in your schedule for the best chance of getting a bargain.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Fernando Luis Ribas Dominicci Airport (SIG)?
In most cases, you're able to cancel or reschedule your BOS to SIG flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you want more information, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Logan Intl.
Destination airport
Fernando Luis Ribas Dominicci
Distance
1676 mi

Book with confidence

Book with confidence

Boston to San Juan Flights

The cheapest times to fly from Boston to San Juan

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boston to San Juan are during the month of . You can find some of the cheapest flights from Boston to San Juan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boston to San Juan

Sunday is one of the best days to book for cheap flights from Boston to San Juan: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boston to San Juan

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boston to San Juan in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boston to San Juan flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boston to San Juan airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Boston to San Juan Flights

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*Available to One Key members.