What is the cheapest airline that flies from Boston Logan Intl to Saint Lucia?

United Airlines, American Airlines, and Delta 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 58% of people opting to fly with this airline when traveling to Saint Lucia. Keep in mind that there are 3 different airlines that fly to Saint Lucia on a routine basis, so you have a few additional options to choose from.

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 3 as of November 2026.

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.

$124 Cheap Flights from Boston to Saint Lucia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Saint Lucia

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 am - 3:46 pmBOS Boston Logan Intl-UVF Castries Hewanorra

8h 16m1 stop New York John F Kennedy Intl

12:51 pm - 7:52 pmUVF Castries Hewanorra-BOS Boston Logan Intl

8h 01m1 stop New York John F Kennedy Intl

$353JetBlue

Thu, Dec 31 - Sat, Jan 16

7:30 am - 3:46 pmBOS Boston Logan Intl-UVF Castries Hewanorra

7h 16m1 stop New York John F Kennedy Intl

12:51 pm - 7:52 pmUVF Castries Hewanorra-BOS Boston Logan Intl

8h 01m1 stop New York John F Kennedy Intl

$354JetBlue

Sun, Jan 3 - Sat, Jan 30

7:40 pm - 2:15 pmBOS Boston Logan Intl-UVF Castries Hewanorra

17h 35m1 stop Newark

5:17 pm - 7:44 amUVF Castries Hewanorra-BOS Boston Logan Intl

15h 27m1 stop Newark

$366United Airlines

Sun, Jan 3 - Sat, Jan 30

7:40 pm - 2:15 pmBOS Boston Logan Intl-UVF Castries Hewanorra

17h 35m1 stop Newark

5:17 pm - 12:42 pmUVF Castries Hewanorra-BOS Boston Logan Intl

20h 25m2 stops Newark Chicago O'Hare Intl

$370United Airlines

Sun, Jan 3 - Sat, Jan 30

5:20 am - 3:46 pmBOS Boston Logan Intl-UVF Castries Hewanorra

9h 26m1 stop New York John F Kennedy Intl

12:51 pm - 7:52 pmUVF Castries Hewanorra-BOS Boston Logan Intl

8h 01m1 stop New York John F Kennedy Intl

$377JetBlue

Sun, Jan 3 - Sat, Jan 30

5:00 am - 3:38 pmBOS Boston Logan Intl-UVF Castries Hewanorra

9h 38m1 stop Miami

4:08 pm - 9:21 amUVF Castries Hewanorra-BOS Boston Logan Intl

18h 13m1 stop Charlotte Douglas

$419American Airlines

Mon, Feb 8 - Thu, Feb 11

5:00 am - 3:38 pmBOS Boston Logan Intl-UVF Castries Hewanorra

9h 38m1 stop Miami

3:46 pm - 12:59 amUVF Castries Hewanorra-BOS Boston Logan Intl

10h 13m1 stop Miami

$419American Airlines

Mon, Jan 11 - Fri, Jan 15

8:10 pm - 3:05 pmBOS Boston Logan Intl-UVF Castries Hewanorra

17h 55m1 stop Atlanta Hartsfield-Jackson

4:25 pm - 9:39 amUVF Castries Hewanorra-BOS Boston Logan Intl

18h 14m1 stop Atlanta Hartsfield-Jackson

$419Delta

Mon, Feb 15 - Thu, Feb 18

8:10 pm - 3:06 pmBOS Boston Logan Intl-UVF Castries Hewanorra

17h 56m1 stop Atlanta Hartsfield-Jackson

4:25 pm - 9:39 amUVF Castries Hewanorra-BOS Boston Logan Intl

18h 14m1 stop Atlanta Hartsfield-Jackson

$419Delta

Mon, Feb 8 - Wed, Feb 17

7:49 pm - 2:15 pmBOS Boston Logan Intl-UVF Castries Hewanorra

17h 26m2 stops Washington, D.C. Dulles Intl Newark

5:17 pm - 10:05 amUVF Castries Hewanorra-BOS Boston Logan Intl

17h 48m2 stops Newark Washington, D.C. Dulles Intl

$507United Airlines

Sun, Jan 3 - Sat, Jan 30

Cheap last minute flights

Enter your travel dates to find the best prices.

6:04 pm - 1:30 pmBOS Boston Logan Intl-UVF Castries Hewanorra

18h 26m1 stop Miami

3:56 pm - 1:02 amUVF Castries Hewanorra-BOS Boston Logan Intl

10h 06m1 stop Miami

$563American Airlines

Mon, Nov 16 - Fri, Nov 20

6:04 pm - 1:30 pmBOS Boston Logan Intl-UVF Castries Hewanorra

18h 26m1 stop Miami

3:56 pm - 11:59 pmUVF Castries Hewanorra-BOS Boston Logan Intl

9h 03m1 stop Miami

$563American Airlines

Mon, Nov 16 - Thu, Nov 19

9:15 pm - 3:04 pmBOS Boston Logan Intl-UVF Castries Hewanorra

16h 49m2 stops Washington, D.C. Reagan-National Charlotte Douglas

3:56 pm - 1:02 amUVF Castries Hewanorra-BOS Boston Logan Intl

10h 06m1 stop Miami

$567American Airlines

Mon, Nov 16 - Thu, Nov 19

9:15 pm - 3:41 pmBOS Boston Logan Intl-UVF Castries Hewanorra

17h 26m2 stops Washington, D.C. Reagan-National Miami

3:56 pm - 7:05 amUVF Castries Hewanorra-BOS Boston Logan Intl

16h 09m2 stops Miami New York LaGuardia

$567American Airlines

Mon, Nov 16 - Thu, Nov 19

9:15 pm - 3:04 pmBOS Boston Logan Intl-UVF Castries Hewanorra

16h 49m2 stops Washington, D.C. Reagan-National Charlotte Douglas

4:28 pm - 8:50 amUVF Castries Hewanorra-BOS Boston Logan Intl

17h 22m2 stops Charlotte Douglas Washington, D.C. Reagan-National

$567American Airlines

Mon, Nov 16 - Fri, Nov 20

6:00 am - 3:41 pmBOS Boston Logan Intl-UVF Castries Hewanorra

8h 41m1 stop Miami

3:56 pm - 9:01 amUVF Castries Hewanorra-BOS Boston Logan Intl

18h 05m2 stops Miami Philadelphia

$567American Airlines

Mon, Nov 16 - Fri, Nov 20

5:45 am - 4:40 pmBOS Boston Logan Intl-UVF Castries Hewanorra

9h 55m1 stop Toronto Pearson Intl

5:35 pm - 5:58 pmUVF Castries Hewanorra-BOS Boston Logan Intl

25h 23m1 stop Toronto Pearson Intl

$568Air Canada

Mon, Nov 16 - Fri, Nov 20

5:45 am - 4:40 pmBOS Boston Logan Intl-UVF Castries Hewanorra

9h 55m1 stop Toronto Pearson Intl

5:35 pm - 2:53 pmUVF Castries Hewanorra-BOS Boston Logan Intl

22h 18m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$572Air Canada

Mon, Nov 16 - Fri, Nov 20

5:45 am - 4:40 pmBOS Boston Logan Intl-UVF Castries Hewanorra

9h 55m1 stop Toronto Pearson Intl

5:35 pm - 10:37 pmUVF Castries Hewanorra-BOS Boston Logan Intl

30h 02m1 stop Toronto Pearson Intl

$578Air Canada

Mon, Nov 16 - Thu, Nov 19

6:04 pm - 1:30 pmBOS Boston Logan Intl-UVF Castries Hewanorra

18h 26m1 stop Miami

3:56 pm - 11:59 pmUVF Castries Hewanorra-BOS Boston Logan Intl

9h 03m1 stop Miami

$580American Airlines

Sun, Nov 15 - Fri, Nov 20

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United Airlines flights from Boston to Saint Lucia

Our best United Airlines deals on Boston to Saint Lucia flight tickets

United Airlines

Jan 3

BOS7:40 pmBoston Logan Intl

17h 35m

1 stop

UVF2:15 pmCastries Hewanorra

Jan 30

UVF5:17 pmCastries Hewanorra

15h 27m

1 stop

BOS7:44 amBoston Logan Intl

$366

United Airlines

Jan 3

BOS7:40 pmBoston Logan Intl

17h 35m

1 stop

UVF2:15 pmCastries Hewanorra

Jan 30

UVF5:17 pmCastries Hewanorra

20h 25m

2 stops

BOS12:42 pmBoston Logan Intl

$370

United Airlines

Jan 3

BOS7:49 pmBoston Logan Intl

17h 26m

2 stops

UVF2:15 pmCastries Hewanorra

Jan 30

UVF5:17 pmCastries Hewanorra

17h 48m

2 stops

BOS10:05 amBoston Logan Intl

$507

American Airlines flights from Boston to Saint Lucia

Our best American Airlines deals on Boston to Saint Lucia flight tickets

American Airlines

Feb 27

BOS7:21 pmBoston Logan Intl

18h 47m

1 stop

UVF3:08 pmCastries Hewanorra

Mar 3

UVF3:58 pmCastries Hewanorra

18h 23m

1 stop

BOS9:21 amBoston Logan Intl

$419

American Airlines

Feb 27

BOS8:22 pmBoston Logan Intl

18h 35m

2 stops

UVF3:57 pmCastries Hewanorra

Mar 2

UVF3:01 pmCastries Hewanorra

7h 58m

1 stop

BOS9:59 pmBoston Logan Intl

$423

American Airlines

Feb 24

BOS6:03 amBoston Logan Intl

8h 54m

1 stop

UVF3:57 pmCastries Hewanorra

Mar 3

UVF3:58 pmCastries Hewanorra

18h 23m

1 stop

BOS9:21 amBoston Logan Intl

$424

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonCastries

BOS Boston Logan Intl - UVF Castries Hewanorra

BOSUVF

Boston Logan Intl

Thu 12/31

6:30 am-3:46 pm

1 stop8h 16m

Castries Hewanorra

Sat 1/16

12:51 pm-7:52 pm

1 stop8h 01m

$353

Quickest round-trip

BostonCastries

BOS Boston Logan Intl - UVF Castries Hewanorra

BOSUVF

Boston Logan Intl

Sun 1/3

7:30 am-3:46 pm

1 stop7h 16m

Castries Hewanorra

Sat 1/30

12:51 pm-7:52 pm

1 stop8h 01m

$354

BostonCastries

BOS Boston Logan Intl - UVF Castries Hewanorra

BOSUVF

Boston Logan Intl

Sun 1/3

7:40 pm-2:15 pm

1 stop17h 35m

Castries Hewanorra

Sat 1/30

5:17 pm-7:44 am

1 stop15h 27m

$366

BostonCastries

BOS Boston Logan Intl - UVF Castries Hewanorra

BOSUVF

Boston Logan Intl

Sun 1/3

7:40 pm-2:15 pm

1 stop17h 35m

Castries Hewanorra

Sat 1/30

5:17 pm-12:42 pm

2 stops20h 25m

$370

BostonCastries

BOS Boston Logan Intl - UVF Castries Hewanorra

BOSUVF

Boston Logan Intl

Sun 1/3

5:20 am-3:46 pm

1 stop9h 26m

Castries Hewanorra

Sat 1/30

12:51 pm-7:52 pm

1 stop8h 01m

$377

BostonCastries

BOS Boston Logan Intl - UVF Castries Hewanorra

BOSUVF

Boston Logan Intl

Mon 2/8

5:00 am-3:38 pm

1 stop9h 38m

Castries Hewanorra

Thu 2/11

4:08 pm-9:21 am

1 stop18h 13m

$419

BostonCastries

BOS Boston Logan Intl - UVF Castries Hewanorra

BOSUVF

Boston Logan Intl

Mon 1/11

5:00 am-3:38 pm

1 stop9h 38m

Castries Hewanorra

Fri 1/15

3:46 pm-12:59 am

1 stop10h 13m

$419

BostonCastries

BOS Boston Logan Intl - UVF Castries Hewanorra

BOSUVF

Boston Logan Intl

Mon 2/15

8:10 pm-3:05 pm

1 stop17h 55m

Castries Hewanorra

Thu 2/18

4:25 pm-9:39 am

1 stop18h 14m

$419

BostonCastries

BOS Boston Logan Intl - UVF Castries Hewanorra

BOSUVF

Boston Logan Intl

Mon 2/8

8:10 pm-3:06 pm

1 stop17h 56m

Castries Hewanorra

Wed 2/17

4:25 pm-9:39 am

1 stop18h 14m

$419

BostonCastries

BOS Boston Logan Intl - UVF Castries Hewanorra

BOSUVF

Boston Logan Intl

Sun 1/3

7:49 pm-2:15 pm

2 stops17h 26m

Castries Hewanorra

Sat 1/30

5:17 pm-10:05 am

2 stops17h 48m

$507

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Saint Lucia?

The month of January is, on average, the cheapest month to fly to Saint Lucia from Boston, with most prices found around $530. If you aren’t able to travel to Saint Lucia during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $538.

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

What cabin class options are available on Boston to Saint Lucia flights?

There are 3 cabin classes available to choose from on Boston to Saint Lucia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to Saint Lucia flights?

You could potentially save up to 34% on your flight if you consider stops on a Boston to Saint Lucia flight.

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

Best Price Found	$124
Fastest flight time	4h 42m
Direct flights	Mon and Sun
Airports in Saint Lucia	7 airports

The best one-way flight to Saint Lucia from Boston in the past 72 hours is $124. The best round-trip flight deal from Boston to Saint Lucia found on momondo in the last 72 hours is $353.

The fastest flight from Boston to Saint Lucia takes 4h 42m

Direct flights go from Boston to Saint Lucia on Monday and Sunday. The only airline offering direct flights is JetBlue.

There are 7 airports in Saint Lucia. From Boston there are direct flights to Castries Hewanorra (UVF).

Search flight deals

Frequently asked questions about flying 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 3 as of November 2026.
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 86.21% of the total bookings. Other popular models include Airbus A321-100/200 with 3.45%, Airbus A321neo with 3.45%, and Boeing 737-700 with 3.45%.

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
Delta	PriceFrom $134	Free Cancellation	Rating 7.8 8,701 reviews	Search Delta flights
JetBlue	PriceFrom $177	Free Cancellation	Rating 7.1 3,067 reviews	Search JetBlue flights
American Airlines	PriceFrom $292	Free Cancellation	Rating 7.0 12,224 reviews	Search American Airlines flights

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.

An easier way to manage your Saint Lucia trip

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Popular cities in Saint Lucia

Flights to Castriesfrom $629

Cheap flights from Boston to Saint Lucia from $124

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 1/3. 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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United Airlines flights from Boston to Saint Lucia

Our best United Airlines deals on Boston to Saint Lucia flight tickets

American Airlines flights from Boston to Saint Lucia

Our best American Airlines deals on Boston to Saint Lucia flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Boston to Saint Lucia that are best for you.

See travel insights to Saint Lucia from

How to get the cheapest flight ticket from Boston to Saint Lucia

What is the cheapest month to fly to Saint Lucia?

What is the cheapest Boston Logan Intl to Saint Lucia flight route?

What cabin class options are available on Boston to Saint Lucia flights?

Can stopping save me money on Boston to Saint Lucia flights?

What is the cheapest airline that flies from Boston Logan Intl to Saint Lucia?

What airlines fly to Saint Lucia?

Cheap Boston to Saint Lucia flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Saint Lucia

Frequently asked questions about flying from Boston to Saint Lucia

Best airlines flying from Boston to Saint Lucia

Compare and see reviews for airlines that fly from Boston to Saint Lucia with momondo

Why use momondo?

An easier way to manage your Saint Lucia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Saint Lucia

Popular cities in Saint Lucia

Popular flights according to clicks in the last 7 days on momondo

Boston flight routes

According to popular flight searches on momondo this year

Saint Lucia flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Saint Lucia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Saint Lucia

List of cabin classes available on flights landing in Saint Lucia. Availability may vary depending on flight origin and airline.

Complete your trip to Saint Lucia

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According to popular flight searches on momondo this year