Cheap flights from Boston to Caribbean from $119

In general, September is the cheapest month to fly from Boston to Caribbean. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $403. If you don’t want to visit Caribbean in September, then you should wait until January to fly from Boston, when ticket prices are also cheap, with an average price of $423.

The cheapest day to depart from Boston to Caribbean is on a Monday when prices can be found for as low as $362. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $397. These prices are subject to change though, so be sure to set up a Price Alert for flights to Caribbean.

In the afternoon is the cheapest time of day to fly from Boston to Caribbean when you can find flight prices for as low as $348. Flying to Caribbean in the afternoon is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $387.

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

You are more likely to see cheaper flights to Caribbean from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Caribbean for around $342 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Caribbean from Boston for as low as $285 on momondo.

There are 4 cabin classes available to choose from on Boston to Caribbean flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

KLM, United Airlines, and Delta are the most popular carriers operating from Boston Logan Intl to Caribbean

JetBlue, Delta and American Airlines are the top three most popular airlines that fly to Caribbean from Boston according to our data. JetBlue is the first choice among our users, with 69% of people opting to fly with this airline when traveling to Caribbean. Keep in mind that there are 11 different airlines that fly to Caribbean on a routine basis, so you have a few additional options to choose from.

As of June 2026, 17 flights take off from Boston and land in Caribbean each day. The most common flight departure time for this route is 9:00PM, with 46% of daily flights taking off at noon.

As of June 2026, there are 119 flights per week flying from Boston to Caribbean. The most common day of the week flights depart is Sat, with 21% of flights taking off on this day.