Cheap flights from Boston to Saint Lucia from $141
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 Saint Lucia departing on 9/8. 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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How to get the cheapest flight ticket from Boston to Saint Lucia
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
What is the cheapest month to fly to Saint Lucia?
The month of September is, on average, the cheapest month to fly to Saint Lucia from Boston, with most prices found around $484. If you aren’t able to travel to Saint Lucia during the month of September, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $551.
What is the cheapest day to depart on your flight to Saint Lucia?
Our data shows that Wednesday is the least expensive day to fly to Saint Lucia. Tickets to fly out on this day can be as low as $530. On the other hand, Saturday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $772.
What is the cheapest time of day to depart on your flight to Saint Lucia?
Our data shows that the cheapest Boston to Saint Lucia flights are usually those with departure times in the afternoon. Our users have found flights to Saint Lucia in the afternoon for as low as $645. Flights in the morning are often more expensive with an average ticket price of $670.
What is the cheapest Boston Logan Intl to Saint Lucia flight route?
Fly from Boston Logan Intl to Castries Hewanorra for the best Boston Logan Intl - Saint Lucia flight prices
How far in advance should I book a flight to Saint Lucia?
You are more likely to see cheaper flights to Saint Lucia from Boston when booking 16 weeks ahead of your departure date. In general, you can expect to find flights to Saint Lucia for around $646 when searching 16 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Saint Lucia from Boston for as low as $492 on momondo.
What cabin class options are available on Boston Logan Intl to Saint Lucia flights?
There are 1 cabin classes available to choose from on Boston Logan Intl to Saint Lucia 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 Saint Lucia?
Air Canada, American Airlines, and United Airlines are the most popular carriers operating from Boston Logan Intl to Saint Lucia
What airlines fly to Saint Lucia?
JetBlue, American Airlines and Delta are the top three most popular airlines that fly to Saint Lucia from Boston according to our data. JetBlue is the first choice among our users, with 64% of people opting to fly with this airline when traveling to Saint Lucia. Keep in mind that there are 5 different airlines that fly to Saint Lucia on a routine basis, so you have a few additional options to choose from.
Cheap Boston to Saint Lucia flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Boston to Saint Lucia
When did momondo last update prices for flights from Boston Logan Intl Airport to Saint Lucia?
Prices for flights from Boston Logan Intl Airport to Saint Lucia were last updated today.
How many operators does momondo search for flights from Boston Logan Intl Airport to Saint Lucia?
The number of operators available for flights from Boston Logan Intl Airport to Saint Lucia is 5 as of June 2025.
How old do you have to be to fly from Boston Logan Intl Airport to Saint Lucia?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Saint Lucia.
What documentation or ID do you need to fly to Saint Lucia?
The required travel and health documents for your Saint Lucia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Saint Lucia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Boston to Saint Lucia?
Based on momondo bookings for flights between Boston and Saint Lucia, the leading plane model is Airbus A318/A319/A320/A321, making up 73.68% of the total bookings. Other popular models include Airbus A320-100/200 with 14.47%, Airbus A321-100/200 with 6.58%, and Boeing 737-800 with 5.26%.
Best airlines flying from Boston to Saint Lucia
Compare and see reviews for airlines that fly from Boston to Saint Lucia with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $361 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $365 | Free Cancellation | Rating 7.3 2,925 reviews | |||
| PriceFrom $386 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $387 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $491 | Free Cancellation | Rating 7.1 9,537 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Boston to Saint Lucia?
Finding the right flight to Saint Lucia from Boston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Saint Lucia quick and easy, saving you time and money.
Can I find flights from Boston to Saint Lucia with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Saint Lucia from Boston with this policy.
How can momondo help me find flights from Boston to Saint Lucia?
Once you have performed a search for Boston to Saint Lucia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Boston to Saint Lucia right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Boston to Saint Lucia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.