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

$161 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and JetBlue, with prices starting from $188 and $213, 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 $435, our data indicates the cheapest price to be $123. The most popular route (Boston Logan Intl - Castries Hewanorra), is priced around $457.

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 34 days in advance, which can save you up to 49% on flights from Boston to Saint Lucia compared to booking the week you need them. Waiting 34 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 $517. 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 $674 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 42% 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.

$490+ Flights from Boston to Saint Lucia

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Cheap flight deals from Boston to Saint Lucia

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$453 (Air Canada)
One-way from	$161 (Air Canada)
Popular in	December
Cheapest in	September
Average price	$695
Good round-trip deal	$642 or less
Good one-way deal	$153 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. 2% potential increase in price ($19 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($27 potential savings vs. average RT price).

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Average for round-trip flights in April 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 April 15, 2025.

Mon 6/164:45 pmBOS - UVF

1 stop21h 30mAir Canada

Fri 6/203:10 pmUVF - BOS

1 stop20h 18mAir Canada

Deal found 4/15

$453

Mon 4/288:59 pmBOS - UVF

2 stops17h 29mAmerican Airlines

Thu 5/13:28 pmUVF - BOS

1 stop9h 02mAmerican Airlines

Deal found 4/14

$462

Tue 5/65:12 amBOS - UVF

1 stop8h 37mJetBlue

Wed 5/73:09 pmUVF - BOS

1 stop9h 08mJetBlue

Deal found 4/14

$527

Sat 6/710:40 amBOS - UVF

1 stop27h 05mMultiple Airlines

Fri 6/133:10 pmUVF - BOS

2 stops18h 25mMultiple Airlines

Deal found 4/13

$577

Thu 4/175:40 amBOS - UVF

1 stop8h 19mDelta

Wed 4/233:19 pmUVF - BOS

1 stop9h 48mDelta

Deal found 4/14

$627

Fri 5/235:50 amBOS - SLU

3 stops31h 20mMultiple Airlines

Mon 5/264:35 pmSLU - BOS

2 stops18h 53mMultiple Airlines

Deal found 4/14

$827

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 April 15, 2025.

Mon 6/94:45 pmBOS - UVF

1 stop21h 30mAir Canada

Fri 6/133:10 pmUVF - BOS

1 stop20h 13mAir Canada

Deal found 4/14

$453

Mon 4/288:30 pmBOS - UVF

2 stops17h 58mAmerican Airlines

Fri 5/23:28 pmUVF - BOS

1 stop18h 03mAmerican Airlines

Deal found 4/14

$462

Wed 5/285:12 amBOS - UVF

1 stop8h 37mJetBlue

Wed 6/43:09 pmUVF - BOS

1 stop9h 08mJetBlue

Deal found 4/15

$524

Sat 6/712:15 pmBOS - UVF

1 stop25h 30mMultiple Airlines

Fri 6/133:10 pmUVF - BOS

1 stop20h 13mMultiple Airlines

Deal found 4/13

$577

Sat 7/266:00 amBOS - UVF

1 stop8h 16mDelta

Wed 7/303:35 pmUVF - BOS

1 stop9h 31mDelta

Deal found 4/14

$658

Fri 5/235:50 amBOS - SLU

3 stops31h 20mMultiple Airlines

Mon 5/264:35 pmSLU - BOS

2 stops18h 53mMultiple Airlines

Deal found 4/14

$827

Last-minute flights from Boston to Saint Lucia
Discover last-minute flight deals from Boston to Saint Lucia. Data last updated April 15, 2025 and is based on user searches.

Sun 4/205:35 pmBOS - UVF

2 stops21h 10mAir Canada

Wed 4/233:45 pmUVF - BOS

2 stops23h 12mAir Canada

Deal found 4/14

$470

Sun 4/206:35 amBOS - UVF

2 stops32h 10mMultiple Airlines

Fri 4/253:45 pmUVF - BOS

2 stops24h 59mMultiple Airlines

Deal found 4/14

$613

Sun 4/205:40 amBOS - UVF

1 stop8h 19mDelta

Tue 4/223:19 pmUVF - BOS

1 stop9h 48mDelta

Deal found 4/14

$627

Sun 4/206:35 amBOS - SLU

2 stops12h 25mMultiple Airlines

Thu 4/249:25 amSLU - BOS

2 stops24h 10mMultiple Airlines

Deal found 4/14

$986

Tue 4/225:15 amBOS - UVF

1 stop9h 13mAmerican Airlines

Tue 4/293:28 pmUVF - BOS

1 stop17h 48mAmerican Airlines

Deal found 4/14

$487

Wed 4/237:40 amBOS - UVF

Nonstop4h 45mJetBlue

Wed 4/303:10 pmUVF - BOS

1 stop9h 09mJetBlue

Deal found 4/15

$588

Sun 4/275:40 amBOS - UVF

1 stop8h 19mDelta

Wed 4/303:19 pmUVF - BOS

1 stop9h 48mDelta

Deal found 4/13

$457

Sun 4/276:00 amBOS - UVF

1 stop8h 28mAmerican Airlines

Wed 4/303:28 pmUVF - BOS

2 stops16h 03mAmerican Airlines

Deal found 4/13

$462

Tue 5/65:12 amBOS - UVF

1 stop8h 37mJetBlue

Fri 5/93:09 pmUVF - BOS

1 stop9h 08mJetBlue

Deal found 4/14

$522

Fri 5/2310:40 amBOS - SLU

2 stops26h 30mMultiple Airlines

Mon 5/264:35 pmSLU - BOS

2 stops18h 53mMultiple Airlines

Deal found 4/14

$827

Sat 5/246:00 amBOS - UVF

1 stop9h 30mUnited Airlines

Sat 5/314:22 pmUVF - BOS

1 stop30h 02mUnited Airlines

Deal found 4/12

$900

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 April 15, 2025.

Sat 4/2612:55 pmBOS - UVF

1 stop25h 50mAir Canada

Deal found 4/14

$161

Sat 5/176:00 amBOS - UVF

1 stop9h 30mUnited Airlines

Deal found 4/14

$188

Sun 6/157:10 amBOS - UVF

1 stop7h 38mJetBlue

Deal found 4/15

$213

Fri 5/27:23 pmBOS - UVF

1 stop17h 57mAmerican Airlines

Deal found 4/14

$218

Sun 10/126:00 amBOS - UVF

1 stop8h 17mDelta

Deal found 4/14

$248

Sat 5/316:10 amBOS - UVF

2 stops31h 35mMultiple Airlines

Deal found 4/14

$264

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Mon 6/16

4:45 pm-2:15 pm

1 stop21h 30m

Castries Hewanorra

Fri 6/20

3:10 pm-11:28 am

1 stop20h 18m

$453

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Mon 4/28

8:59 pm-2:28 pm

2 stops17h 29m

Castries Hewanorra

Thu 5/1

3:28 pm-12:30 am

1 stop9h 02m

$462

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Tue 5/6

5:12 am-1:49 pm

1 stop8h 37m

Castries Hewanorra

Thu 5/8

3:09 pm-12:17 am

1 stop9h 08m

$527

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Sat 6/7

12:15 pm-1:45 pm

1 stop25h 30m

Castries Hewanorra

Fri 6/13

3:10 pm-11:23 am

1 stop20h 13m

$577

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Sat 7/26

6:00 am-2:16 pm

1 stop8h 16m

Castries Hewanorra

Wed 7/30

3:35 pm-1:06 am

1 stop9h 31m

$658

BostonCastries

BOS - SLU

BOSSLU

Boston Logan Intl

Fri 5/23

5:50 am-1:10 pm

3 stops31h 20m

Castries George F. L. Charle

Mon 5/26

4:35 pm-11:28 am

2 stops18h 53m

$827

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Sat 4/26

12:55 pm-2:45 pm

1 stop25h 50m

$161

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Sat 5/17

6:00 am-3:30 pm

1 stop9h 30m

$188

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Sun 6/15

7:10 am-2:48 pm

1 stop7h 38m

$213

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Fri 5/2

7:23 pm-1:20 pm

1 stop17h 57m

$218

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 12 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.

Cheapflights Insights

Everything you need to know about your flight from Boston to Saint Lucia

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

7,916 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

7,916 reviews

Delta

8.0

Very good

7,916 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

8,656 reviews

Delta

8.0

Very good

7,916 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

2,927 reviews

Delta

8.0

Very good

7,916 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

7,916 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

9,118 reviews

Delta

8.0

Very good

7,916 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?
$161 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and JetBlue, with prices starting from $188 and $213, 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 $435, our data indicates the cheapest price to be $123. The most popular route (Boston Logan Intl - Castries Hewanorra), is priced around $457.
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

Boston to Luis Munoz Marin Intl flights

Hartford to Luis Munoz Marin Intl flights

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Boston to Bridgetown flights

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Boston to St. George's flights

Hartford to Oranjestad flights

Boston to George Town flights

Boston to Christiansted flights

Boston to St. John's flights

Hartford to Montego Bay flights

Hartford to Saint Thomas Island flights

Boston to Kingston flights

Boston to Puerto Plata flights

Albany to Luis Munoz Marin Intl flights

Hartford to Punta Cana flights

Boston to Basseterre flights

Albany to Oranjestad flights

Hartford to Providenciales flights

Hartford to Kingston flights

Hartford to Ponce flights

Hartford to Santo Domingo flights

Hartford to Nassau flights

Hartford to Simpson Bay flights

Hartford to Georgetown flights

Boston to Freeport flights

Boston to Road Town flights

Boston to Port of Spain flights

Hartford to Castries flights

Hartford to Aguadilla flights

Albany to Montego Bay flights

Hartford to Santiago de los Caballeros flights

Boston to The Valley flights

Boston to Aguadilla flights

Boston to Marsh Harbour flights

Worcester to Luis Munoz Marin Intl flights

Boston to Kralendijk flights

Boston to Castries flights

Boston to Cap Haitien flights

Albany to Nassau flights

Hartford to Puerto Plata flights

Top 4 airlines flying from Boston to Saint Lucia

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$361	Average$587	FlexibilityNo cancel fee	On-time69%
JetBlue	Cheapest$366	Average$633	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$387	Average$597	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$388	Average$652	FlexibilityNo cancel fee	On-time71%

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$161+ 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

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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 April 15, 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 April 15, 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 April 15, 2025.

Cheapflights Fare Finder

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

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.

Cheapflights Insights

Everything you need to know about your flight from Boston to Saint Lucia

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 April 15, 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 4 airlines flying from Boston to Saint Lucia

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Travel Smart

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 April 15, 2025.