Cheap flights from Boston to San Juan from $59
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 4/7. 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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1 adult
Economy
0 bags
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Cheap round-trip flights
KAYAK's recommended round-trip deals from the most popular airlines that fly from Boston to San Juan.
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.
United Airlines flights from Boston to San Juan
Our best United Airlines deals on Boston to San Juan flight tickets
United Airlines![United Airlines]()
May 3![United Airlines]()
May 6
BOS12:15 pmBoston Logan Intl
11h 39m
1 stop
SJU11:54 pmSan Juan Luis Munoz Marin Intl
SJU1:05 amSan Juan Luis Munoz Marin Intl
9h 02m
1 stop
BOS10:07 amBoston Logan Intl
United Airlines![United Airlines]()
Apr 2![United Airlines]()
Apr 8
BOS12:45 pmBoston Logan Intl
11h 12m
2 stops
SJU11:57 pmSan Juan Luis Munoz Marin Intl
SJU1:05 amSan Juan Luis Munoz Marin Intl
11h 43m
2 stops
BOS12:48 pmBoston Logan Intl
Frontier flights from Boston to San Juan
Our best Frontier deals on Boston to San Juan flight tickets
Frontier![Frontier]()
Mar 31![Frontier]()
Apr 5
BOS11:22 amBoston Logan Intl
3h 52m
SJU3:14 pmSan Juan Luis Munoz Marin Intl
SJU6:00 amSan Juan Luis Munoz Marin Intl
4h 16m
BOS10:16 amBoston Logan Intl
Frontier![Frontier]()
Apr 4![Frontier]()
Apr 7
BOS11:16 amBoston Logan Intl
3h 56m
SJU3:12 pmSan Juan Luis Munoz Marin Intl
SJU6:00 amSan Juan Luis Munoz Marin Intl
4h 16m
BOS10:16 amBoston 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
Prices
Airlines
Other information
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 $260. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $310.
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 afternoon when flights can be purchased for as low as $281. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $299 on average. Flights to San Juan from Boston at noon 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?
You are more likely to see cheaper flights to San Juan from Boston when booking 4 weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $261 when searching 4 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Boston for as low as $214 on momondo.
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.
What is the cheapest airline that flies from Boston Logan Intl to San Juan?
Spirit Airlines, JetBlue, and American Airlines are the most popular carriers operating from Boston Logan Intl to San Juan
What airlines fly to San Juan?
JetBlue, Delta and Frontier are the top three most popular airlines that fly to San Juan from Boston according to our data. JetBlue is the first choice among our users, with 42% of people opting to fly with this airline when traveling to San Juan. Keep in mind that there are 7 different airlines that fly to San Juan on a routine basis, so you have a few additional options to choose from.
How many flights depart from Boston to San Juan on average per day?
The number of flights available between Boston and San Juan is 11 per day as of March 2025. The most frequent departure time is 7:00PM, with 50% of daily flights leaving at noon.
How many flights depart from Boston to San Juan on average per week?
As of March 2025, there are 80 flights per week flying from Boston to San Juan. The most common day of the week flights depart is Thu, with 20% of flights taking off on this day.
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
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 52m.
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?
There are 7 operators available for flights from Boston Logan Intl Airport to San Juan as of March 2025.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $76 | Free Cancellation | Rating 6.0 3,274 reviews | |||
| PriceFrom $89 | Free Cancellation | Rating 6.3 7,877 reviews | |||
| PriceFrom $141 | Free Cancellation | Rating 8.0 7,895 reviews | |||
| PriceFrom $142 | Free Cancellation | Rating 7.3 2,937 reviews | |||
| PriceFrom $204 | Free Cancellation | Rating 7.4 8,605 reviews | |||
| PriceFrom $282 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $427 | Free Cancellation | Rating 8.0 4,282 reviews |
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.