What are the cheapest airlines to fly from Boston to Saint Lucia one-way?

$163 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Delta and JetBlue, with prices starting from $168 and $179, respectively.

What is the cheapest day to fly from Boston to Saint Lucia?

Travelers seeking maximum savings on their Boston to Saint Lucia flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the cheapest flights from Boston to Saint Lucia?

Looking for the cheapest flight from Boston to Saint Lucia? While on average our users pay $378, our data indicates the cheapest price to be $138. The most popular route (Boston Logan Intl - Castries Hewanorra), is priced around $383.

What are the most popular airlines that fly from Boston to Saint Lucia?

Consider American Airlines, JetBlue or Delta when booking your flight. These represent the most popular airlines when flying from Boston to Saint Lucia.

What is the cheapest day to fly round-trip from Boston to Saint Lucia?

Flying to your destination on a Friday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Saint Lucia. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from Boston to Saint Lucia?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 9 days in advance, which can save you up to 50% on flights from Boston to Saint Lucia compared to booking the week you need them. Waiting 9 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $430. For sooner than that we have options available in the next 3 days from $647.

What is the cheapest month to fly from Boston to Saint Lucia?

September is one of the best times of the year to fly to Saint Lucia from Boston. Prices for September average $661 per person but you can even find prices for as low as $423. The most expensive prices can be found in the month of December. Opting for a September flight can save you 46% on your journey compared to booking in December

What airport do you fly from for flights from Boston to Saint Lucia?

Boston Logan Intl (BOS) is the airport you will fly out of if you book a flight from Boston to Saint Lucia. It is only a 2.6 mi journey to Logan Intl (BOS) from Boston’s city center.

Can I find deals for flights from Boston to Saint Lucia that include hotel bookings?

Yes. In addition to deals on Boston to Saint Lucia flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Boston to Saint Lucia?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Saint Lucia.

Can I find deals for business class flights from Boston to Saint Lucia?

Yes. Cheapflights offers flight deals from Boston to Saint Lucia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$438+ Flights from Boston to Saint Lucia

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Cheap flight deals from Boston to Saint Lucia

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$383 (JetBlue Airways)
One-way from	$163 (American Airlines)
Popular in	December
Cheapest in	September
Average price	$561
Good round-trip deal	$442 or less
Good one-way deal	$143 or less

Provider with most accurate pricing for Boston Logan Intl-Castries George F. L. Charle flight deals.

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Provider most trusted by Cheapflights users for Boston Logan Intl-Castries George F. L. Charle flights.

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From Boston Logan Intl to Saint Lucia

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One-way flight from Boston Logan Intl to Saint Lucia

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Highest demand for flights based on searches. 5% potential increase in price ($38 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($29 potential savings vs. average RT price).

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Average for round-trip flights in March 2025

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Price to beat on a round-trip flight from Boston Logan Intl to Saint Lucia.

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Price to beat on a one-way flight from Boston Logan Intl to Saint Lucia.

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Find flight deals from Boston to Saint Lucia

Cheapest flights from Boston to Saint Lucia
Explore the most affordable flight options available from Boston to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 14, 2025.

Wed 4/29:00 amBOS - UVF

Nonstop4h 45mJetBlue

Wed 4/161:40 pmUVF - BOS

Nonstop5h 15mJetBlue

Deal found 3/12

$383

Sat 3/297:40 pmBOS - UVF

2 stops18h 00mAmerican Airlines

Wed 4/23:10 pmUVF - BOS

2 stops16h 30mAmerican Airlines

Deal found 3/13

$389

Wed 4/25:40 amBOS - UVF

1 stop8h 20mDelta

Wed 4/93:25 pmUVF - BOS

1 stop9h 42mDelta

Deal found 3/13

$397

Sat 3/296:40 pmBOS - UVF

2 stops20h 10mBritish Airways

Wed 4/23:10 pmUVF - BOS

1 stop18h 11mBritish Airways

Deal found 3/13

$454

Mon 3/1712:55 pmBOS - UVF

1 stop25h 50mAir Canada

Wed 3/263:45 pmUVF - BOS

1 stop24h 07mAir Canada

Deal found 3/12

$511

Sat 5/36:00 amBOS - UVF

1 stop9h 30mUnited Airlines

Sat 5/1012:55 pmUVF - BOS

2 stops25h 24mUnited Airlines

Deal found 3/12

$587

Fri 4/45:20 pmBOS - SLU

2 stops28h 50mMultiple Airlines

Sun 4/612:30 pmSLU - BOS

2 stops34h 20mMultiple Airlines

Deal found 3/13

$803

Best flights from Boston to Saint Lucia
Discover carefully curated flight deals from Boston to Saint Lucia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 14, 2025.

Wed 4/29:00 amBOS - UVF

Nonstop4h 45mJetBlue

Wed 4/161:40 pmUVF - BOS

Nonstop5h 15mJetBlue

Deal found 3/12

$383

Sat 3/297:40 pmBOS - UVF

2 stops18h 00mAmerican Airlines

Wed 4/23:10 pmUVF - BOS

2 stops16h 30mAmerican Airlines

Deal found 3/13

$389

Wed 4/25:40 amBOS - UVF

1 stop8h 20mDelta

Wed 4/93:25 pmUVF - BOS

1 stop9h 42mDelta

Deal found 3/13

$397

Sat 3/296:40 pmBOS - UVF

2 stops20h 10mBritish Airways

Wed 4/23:10 pmUVF - BOS

1 stop18h 11mBritish Airways

Deal found 3/13

$454

Sun 4/205:35 pmBOS - UVF

2 stops21h 10mAir Canada

Wed 4/233:45 pmUVF - BOS

2 stops18h 22mAir Canada

Deal found 3/12

$516

Sat 5/36:00 amBOS - UVF

1 stop9h 30mUnited Airlines

Sat 5/1012:55 pmUVF - BOS

2 stops25h 24mUnited Airlines

Deal found 3/12

$587

Sun 6/13:20 pmBOS - UVF

2 stops46h 55mMultiple Airlines

Sun 6/82:35 pmUVF - BOS

3 stops27h 33mMultiple Airlines

Deal found 3/12

$700

Fri 4/45:20 pmBOS - SLU

2 stops28h 50mMultiple Airlines

Sun 4/612:30 pmSLU - BOS

2 stops34h 20mMultiple Airlines

Deal found 3/13

$803

Last-minute flights from Boston to Saint Lucia
Discover last-minute flight deals from Boston to Saint Lucia. Data last updated March 14, 2025 and is based on user searches.

Mon 3/1712:55 pmBOS - UVF

1 stop25h 50mAir Canada

Wed 3/263:45 pmUVF - BOS

1 stop24h 07mAir Canada

Deal found 3/12

$511

Tue 3/186:10 amBOS - UVF

1 stop8h 35mAir Canada

Mon 3/243:45 pmUVF - BOS

2 stops18h 18mAir Canada

Deal found 3/12

$671

Wed 3/195:40 amBOS - UVF

1 stop8h 20mDelta

Fri 3/283:20 pmUVF - BOS

1 stop9h 45mDelta

Deal found 3/12

$451

Thu 3/206:15 amBOS - UVF

1 stop8h 35mAmerican Airlines

Thu 3/273:50 pmUVF - BOS

1 stop8h 57mAmerican Airlines

Deal found 3/12

$407

Sat 3/2211:05 amBOS - UVF

Nonstop4h 46mJetBlue

Wed 3/261:27 pmUVF - BOS

Nonstop5h 16mJetBlue

Deal found 3/12

$393

Sat 3/225:35 pmBOS - UVF

2 stops21h 10mMultiple Airlines

Wed 3/263:45 pmUVF - BOS

3 stops25h 43mMultiple Airlines

Deal found 3/13

$833

Sat 3/297:40 pmBOS - UVF

2 stops18h 00mAmerican Airlines

Wed 4/23:10 pmUVF - BOS

2 stops16h 30mAmerican Airlines

Deal found 3/13

$389

Sat 3/296:40 pmBOS - UVF

2 stops20h 10mBritish Airways

Wed 4/23:10 pmUVF - BOS

1 stop18h 11mBritish Airways

Deal found 3/13

$454

Wed 4/29:00 amBOS - UVF

Nonstop4h 45mJetBlue

Wed 4/161:40 pmUVF - BOS

Nonstop5h 15mJetBlue

Deal found 3/12

$383

Wed 4/25:40 amBOS - UVF

1 stop8h 20mDelta

Wed 4/93:25 pmUVF - BOS

1 stop9h 42mDelta

Deal found 3/13

$397

Fri 4/45:20 pmBOS - SLU

2 stops28h 50mMultiple Airlines

Sun 4/612:30 pmSLU - BOS

2 stops34h 20mMultiple Airlines

Deal found 3/13

$803

Thu 4/241:31 pmBOS - UVF

3 stops25h 14mMultiple Airlines

Sun 4/273:45 pmUVF - BOS

2 stops42h 22mMultiple Airlines

Deal found 3/11

$706

One-way flights from Boston to Saint Lucia
Search for one-way flight options from Boston to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated March 14, 2025.

Sat 4/265:59 amBOS - UVF

1 stop7h 21mAmerican Airlines

Deal found 3/12

$163

Tue 4/15:40 amBOS - UVF

1 stop8h 20mDelta

Deal found 3/13

$168

Wed 4/167:50 amBOS - UVF

Nonstop4h 45mJetBlue

Deal found 3/13

$179

Fri 5/27:14 pmBOS - UVF

2 stops20h 16mUnited Airlines

Deal found 3/13

$189

Tue 4/13:40 pmBOS - UVF

2 stops23h 05mAir Canada

Deal found 3/13

$208

Sat 4/266:35 amBOS - UVF

3 stops31h 10mMultiple Airlines

Deal found 3/12

$283

Tue 4/13:36 pmBOS - SLU

2 stops24h 19mMultiple Airlines

Deal found 3/13

$336

Find flights from Boston to Saint Lucia within your budget

Fly from

Fly to

Route

Depart

Return

Price

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Wed 4/2

9:00 am-1:45 pm

Nonstop4h 45m

Castries Hewanorra

Wed 4/16

1:40 pm-6:55 pm

Nonstop5h 15m

$383

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Sat 3/29

7:40 pm-1:40 pm

2 stops18h 00m

Castries Hewanorra

Wed 4/2

3:10 pm-7:40 am

2 stops16h 30m

$389

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Wed 4/2

5:40 am-2:00 pm

1 stop8h 20m

Castries Hewanorra

Wed 4/9

3:25 pm-1:07 am

1 stop9h 42m

$397

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Sat 3/29

6:40 pm-2:50 pm

2 stops20h 10m

Castries Hewanorra

Wed 4/2

3:10 pm-9:21 am

1 stop18h 11m

$454

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Mon 3/17

12:55 pm-2:45 pm

1 stop25h 50m

Castries Hewanorra

Wed 3/26

3:45 pm-3:52 pm

1 stop24h 07m

$511

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Sat 5/3

6:00 am-3:30 pm

1 stop9h 30m

Castries Hewanorra

Sat 5/10

12:55 pm-2:19 pm

2 stops25h 24m

$587

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Sun 6/1

3:20 pm-2:15 pm

2 stops46h 55m

Castries Hewanorra

Sun 6/8

2:35 pm-6:08 pm

3 stops27h 33m

$700

BostonCastries

BOS - SLU

BOSSLU

Boston Logan Intl

Fri 4/4

5:20 pm-10:10 pm

2 stops28h 50m

Castries George F. L. Charle

Sun 4/6

12:30 pm-10:50 pm

2 stops34h 20m

$803

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Sat 4/26

5:59 am-1:20 pm

1 stop7h 21m

$163

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Tue 4/1

5:40 am-2:00 pm

1 stop8h 20m

$168

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/12

Showing 1-10 of 15 results

Best time to book a flight from Boston to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Boston with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Boston to Saint Lucia

Get recent, data-driven insights about flights from Boston to Saint Lucia including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Boston to Saint Lucia?

Currently, January is the cheapest month in which you can book a flight from Boston to Saint Lucia (average of $556). Flying from Boston to Saint Lucia in December is currently the most expensive (average of $730). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to LC?

When flying from Boston to Saint Lucia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Saint Lucia

Read reviews from past customers who have flown Delta, United Airlines and JetBlue from Boston to Saint Lucia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,944 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,944 reviews

Delta

8.0

Very good

7,944 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,623 reviews

Delta

8.0

Very good

7,944 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

JetBlue

7.3

Good

2,953 reviews

Delta

8.0

Very good

7,944 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,944 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.0

Good

8,878 reviews

Delta

8.0

Very good

7,944 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly from for flights from Boston to Saint Lucia?
Boston Logan Intl (BOS) is the airport you will fly out of if you book a flight from Boston to Saint Lucia. It is only a 2.6 mi journey to Logan Intl (BOS) from Boston’s city center.
What are the cheapest airlines to fly from Boston to Saint Lucia one-way?
$163 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Delta and JetBlue, with prices starting from $168 and $179, respectively.
What are the cheapest flights from Boston to Saint Lucia?
Looking for the cheapest flight from Boston to Saint Lucia? While on average our users pay $378, our data indicates the cheapest price to be $138. The most popular route (Boston Logan Intl - Castries Hewanorra), is priced around $383.
Can I find deals for flights from Boston to Saint Lucia that include hotel bookings?
Yes. In addition to deals on Boston to Saint Lucia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Boston to Saint Lucia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Saint Lucia.
Can I find deals for business class flights from Boston to Saint Lucia?
Yes. Cheapflights offers flight deals from Boston to Saint Lucia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Boston to Saint Lucia?
Currently, January is the cheapest month in which you can book a flight from Boston to Saint Lucia (average of $556). Flying from Boston to Saint Lucia in December is currently the most expensive (average of $730). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Boston to Saint Lucia

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Hartford to Luis Munoz Marin Intl flights

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Albany to Luis Munoz Marin Intl flights

Hartford to Montego Bay flights

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Boston to Puerto Plata flights

Hartford to Nassau flights

Boston to Kingston flights

Boston to Basseterre flights

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Hartford to Saint Thomas Island flights

Albany to Oranjestad flights

Boston to Kralendijk flights

Boston to Aguadilla flights

Hartford to St. John's flights

Boston to Port of Spain flights

Hartford to Santo Domingo flights

Hartford to Kingston flights

Boston to Freeport flights

Albany to Nassau flights

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Hartford to Providenciales flights

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Boston to The Valley flights

Albany to Saint Thomas Island flights

Boston to Kingstown flights

Hartford to Georgetown flights

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Top 3 airlines flying from Boston to Saint Lucia

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest$366	Average$639	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$387	Average$597	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$389	Average$660	FlexibilityNo cancel fee	On-time71%

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$163+ Cheap flights from Boston (BOS) to Saint Lucia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boston to Saint Lucia with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Boston to Saint Lucia

Keep the following information in mind while searching for Boston to Saint Lucia flight deals. Data was last updated March 14, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Boston to Saint Lucia

Cheapest flights from Boston to Saint LuciaExplore the most affordable flight options available from Boston to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 14, 2025.

Explore the most affordable flight options available from Boston to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 14, 2025.

Find flights from Boston to Saint Lucia within your budget

Best time to book a flight from Boston to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Boston with our price prediction graph.

Travel insights for flights from Boston to Saint Lucia

Get recent, data-driven insights about flights from Boston to Saint Lucia including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Boston to Saint Lucia?

What is the cheapest time of day to fly from BOS to LC?

Find hourly flight availability from Boston to Saint Lucia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 14, 2025.

Reviews of airlines servicing Saint Lucia

Read reviews from past customers who have flown Delta, United Airlines and JetBlue from Boston to Saint Lucia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Boston to Saint Lucia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Boston to Saint Lucia?

What are the cheapest airlines to fly from Boston to Saint Lucia one-way?

What are the cheapest flights from Boston to Saint Lucia?

Can I find deals for flights from Boston to Saint Lucia that include hotel bookings?

How can I find direct flights from Boston to Saint Lucia?

Can I find deals for business class flights from Boston to Saint Lucia?

What is the cheapest month to book a flight from Boston to Saint Lucia?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boston to Saint Lucia

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Boston to Saint Lucia

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Cheapest flights from Boston to Saint Lucia
Explore the most affordable flight options available from Boston to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 14, 2025.