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

$188 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 JetBlue and American Airlines, with prices starting from $213 and $218, 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 $533, our data indicates the cheapest price to be $153. The most popular route (Boston Logan Intl - Castries Hewanorra), is priced around $470.

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

Consider American Airlines, Air Canada or JetBlue 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 35 days in advance, which can save you up to 301% on flights from Boston to Saint Lucia compared to booking the week you need them. Waiting 35 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 $666 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 43% 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.

$520+ 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	$418 (Air Canada)
One-way from	$188 (Air Canada)
Popular in	December
Cheapest in	September
Average price	$695
Good round-trip deal	$642 or less
Good one-way deal	$156 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. 3% potential increase in price ($27 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 29, 2025.

Thu 5/2912:15 pmBOS - UVF

1 stop26h 00mAir Canada

Fri 6/63:10 pmUVF - BOS

2 stops23h 22mAir Canada

Deal found 4/29

$418

Sat 8/95:54 amBOS - UVF

1 stop7h 11mAmerican Airlines

Sat 8/163:15 pmUVF - BOS

1 stop18h 37mAmerican Airlines

Deal found 4/29

$517

Fri 6/65:12 amBOS - UVF

1 stop8h 37mJetBlue

Wed 6/113:09 pmUVF - BOS

1 stop9h 08mJetBlue

Deal found 4/28

$524

Wed 9/246:30 pmBOS - UVF

2 stops43h 45mMultiple Airlines

Sun 9/282:35 pmUVF - BOS

3 stops27h 05mMultiple Airlines

Deal found 4/29

$530

Wed 10/86:00 amBOS - UVF

1 stop8h 17mDelta

Tue 10/143:32 pmUVF - BOS

1 stop9h 28mDelta

Deal found 4/28

$541

Sun 6/86:10 amBOS - SLU

2 stops33h 40mMultiple Airlines

Fri 6/139:10 amSLU - BOS

2 stops24h 45mMultiple Airlines

Deal found 4/29

$817

Fri 6/66:25 pmBOS - UVF

2 stops43h 20mWestJet

Sun 6/152:35 pmUVF - BOS

2 stops51h 05mWestJet

Deal found 4/28

$848

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 29, 2025.

Thu 5/2912:15 pmBOS - UVF

1 stop26h 00mAir Canada

Fri 6/63:10 pmUVF - BOS

2 stops23h 22mAir Canada

Deal found 4/29

$418

Tue 7/295:35 amBOS - UVF

1 stop8h 45mDelta

Wed 8/63:40 pmUVF - BOS

1 stop9h 59mDelta

Deal found 4/29

$517

Sat 8/95:54 amBOS - UVF

1 stop8h 21mAmerican Airlines

Wed 8/133:25 pmUVF - BOS

2 stops15h 51mAmerican Airlines

Deal found 4/29

$522

Wed 5/285:12 amBOS - UVF

1 stop8h 37mJetBlue

Sun 6/13:09 pmUVF - BOS

1 stop9h 08mJetBlue

Deal found 4/29

$524

Wed 9/246:30 pmBOS - UVF

2 stops43h 45mMultiple Airlines

Sun 9/282:35 pmUVF - BOS

3 stops27h 05mMultiple Airlines

Deal found 4/29

$530

Sun 6/86:10 amBOS - SLU

2 stops33h 40mMultiple Airlines

Fri 6/139:10 amSLU - BOS

2 stops24h 45mMultiple Airlines

Deal found 4/29

$817

Last-minute flights from Boston to Saint Lucia
Discover last-minute flight deals from Boston to Saint Lucia. Data last updated April 29, 2025 and is based on user searches.

Tue 5/67:15 pmBOS - UVF

2 stops18h 56mAmerican Airlines

Tue 5/133:14 pmUVF - BOS

2 stops20h 10mAmerican Airlines

Deal found 4/29

$562

Tue 5/65:40 amBOS - UVF

1 stop8h 19mDelta

Fri 5/93:26 pmUVF - BOS

1 stop9h 51mDelta

Deal found 4/28

$577

Tue 5/65:12 amBOS - UVF

1 stop8h 37mJetBlue

Tue 5/133:09 pmUVF - BOS

1 stop9h 08mJetBlue

Deal found 4/29

$703

Tue 5/65:40 amBOS - UVF

1 stop8h 19mDelta

Fri 5/93:26 pmUVF - BOS

1 stop9h 51mDelta

Deal found 4/29

$577

Thu 5/155:00 amBOS - UVF

1 stop9h 11mAmerican Airlines

Sat 5/172:00 pmUVF - BOS

1 stop18h 26mAmerican Airlines

Deal found 4/29

$517

Wed 5/285:12 amBOS - UVF

1 stop8h 37mJetBlue

Sun 6/13:09 pmUVF - BOS

1 stop9h 08mJetBlue

Deal found 4/29

$524

Wed 5/286:00 amBOS - SLU

2 stops32h 35mMultiple Airlines

Wed 6/410:15 amSLU - BOS

3 stops31h 58mMultiple Airlines

Deal found 4/28

$888

Thu 5/2912:15 pmBOS - UVF

1 stop26h 00mAir Canada

Fri 6/63:10 pmUVF - BOS

2 stops23h 22mAir Canada

Deal found 4/29

$418

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 29, 2025.

Mon 7/285:50 amBOS - UVF

2 stops32h 25mAir Canada

Deal found 4/29

$188

Fri 6/135:25 amBOS - UVF

1 stop9h 02mJetBlue

Deal found 4/29

$213

Thu 5/155:00 amBOS - UVF

1 stop9h 11mAmerican Airlines

Deal found 4/29

$218

Fri 6/135:36 pmBOS - UVF

2 stops44h 09mMultiple Airlines

Deal found 4/29

$293

Thu 7/172:46 pmBOS - UVF

2 stops48h 44mUnited Airlines

Deal found 4/29

$366

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

Thu 5/29

12:15 pm-2:15 pm

1 stop26h 00m

Castries Hewanorra

Fri 6/6

3:10 pm-2:32 pm

2 stops23h 22m

$418

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Thu 5/15

5:00 am-2:11 pm

1 stop9h 11m

Castries Hewanorra

Sat 5/17

2:00 pm-8:26 am

1 stop18h 26m

$517

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Fri 6/6

5:12 am-1:49 pm

1 stop8h 37m

Castries Hewanorra

Wed 6/11

3:09 pm-12:17 am

1 stop9h 08m

$524

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Tue 5/6

5:40 am-1:59 pm

1 stop8h 19m

Castries Hewanorra

Fri 5/9

3:26 pm-1:17 am

1 stop9h 51m

$577

BostonCastries

BOS - SLU

BOSSLU

Boston Logan Intl

Sun 6/8

6:10 am-3:50 pm

2 stops33h 40m

Castries George F. L. Charle

Fri 6/13

9:10 am-9:55 am

2 stops24h 45m

$817

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Fri 6/6

6:25 pm-1:45 pm

2 stops43h 20m

Castries Hewanorra

Sun 6/15

2:35 pm-5:40 pm

2 stops51h 05m

$848

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Sat 6/21

6:00 am-3:30 pm

1 stop9h 30m

Castries Hewanorra

Sat 6/28

4:22 pm-5:48 pm

1 stop25h 26m

$1,060

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Thu 7/10

10:40 am-2:15 pm

1 stop27h 35m

Castries Hewanorra

Thu 7/24

2:35 pm-9:31 pm

1 stop30h 56m

$1,160

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Mon 5/26

10:20 am-2:15 pm

2 stops27h 55m

$166

BostonCastries

BOS - UVF

BOSUVF

Boston Logan Intl

Sun 5/25

5:12 am-1:49 pm

1 stop8h 37m

$213

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 14 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

7,929 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

7,929 reviews

Delta

8.0

Very good

7,929 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

8,696 reviews

Delta

8.0

Very good

7,929 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

2,922 reviews

Delta

8.0

Very good

7,929 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

7,929 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

9,244 reviews

Delta

8.0

Very good

7,929 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?
$188 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 JetBlue and American Airlines, with prices starting from $213 and $218, 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 $533, our data indicates the cheapest price to be $153. The most popular route (Boston Logan Intl - Castries Hewanorra), is priced around $470.
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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Top 5 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$627	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$387	Average$599	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$387	Average$654	FlexibilityNo cancel fee	On-time71%
Air Canada	Cheapest$491	Average$591	FlexibilityNo cancel fee	On-time67%

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$166+ 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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.

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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 29, 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 29, 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 29, 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 29, 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 5 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 April 29, 2025.