What are the cheapest airlines to fly from Washington, D.C. to Saint Lucia one-way?

For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $311. Users have also found prices from $351 and $363 on Delta and American Airlines, respectively.

What are the most popular routes from Washington, D.C. to Saint Lucia?

The most popular route from Washington, D.C. to Saint Lucia is Washington, D.C. Dulles Intl - Castries Hewanorra. You may also consider Baltimore/Washington - Castries Hewanorra or Washington, D.C. Reagan-National - Castries Hewanorra.

What is the cheapest month to fly from Washington, D.C. to Saint Lucia?

The best pricing can be found in the month of January. Prices to Saint Lucia from Washington, D.C. average $757. You can even find prices in January for less than $757, as users have found deals to Saint Lucia from as low as $571. The month of December appears to be one of the more expensive times to travel to Saint Lucia from Washington, D.C.. Flying in the targeted month can save you up to 53%.

Can I find deals for flights from Washington, D.C. to Saint Lucia that include hotel bookings?

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

How can I find direct flights from Washington, D.C. to Saint Lucia?

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

Can I find deals for business class flights from Washington, D.C. to Saint Lucia?

Yes. Cheapflights offers flight deals from Washington, D.C. 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.

$815+ Flights from Washington, D.C. to Saint Lucia - Compare & Save Big

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Cheap flight deals from Washington, D.C. to Saint Lucia

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$418 (Air Canada)
One-way from	$306 (Kiwi.com)
Popular in	December
Cheapest in	January
Average price	$779

Provider with most accurate pricing for Washington, D.C. (WAS)-Castries George F. L. Charle flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Castries George F. L. Charle flights.

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From Washington, D.C. (WAS) to Saint Lucia

Search Deals

One-way flight from Washington, D.C. (WAS) to Saint Lucia

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($100 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($38 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

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Find flight deals from Washington, D.C. to Saint Lucia

Cheapest flights from Washington, D.C. to Saint Lucia
Explore the most affordable flight options available from Washington, D.C. to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Wed 9/36:35 amBWI - UVF

1 stop7h 08mAmerican Airlines

Tue 9/93:34 pmUVF - BWI

1 stop8h 04mAmerican Airlines

Deal found 4/29

$427

Thu 5/298:40 pmDCA - UVF

1 stop17h 35mAir Canada

Tue 6/103:10 pmUVF - DCA

2 stops24h 39mAir Canada

Deal found 4/29

$428

Thu 5/2910:25 amIAD - UVF

1 stop27h 50mAir Canada

Tue 6/103:10 pmUVF - IAD

1 stop22h 31mAir Canada

Deal found 4/29

$428

Fri 9/56:30 amDCA - UVF

1 stop7h 29mJetBlue

Wed 9/103:05 pmUVF - DCA

1 stop7h 54mJetBlue

Deal found 4/29

$495

Thu 5/2912:55 pmIAD - UVF

3 stops25h 20mMultiple Airlines

Tue 6/103:10 pmUVF - IAD

1 stop18h 31mMultiple Airlines

Deal found 4/29

$546

Tue 12/95:05 amDCA - UVF

1 stop8h 15mAmerican Airlines

Tue 12/164:20 pmUVF - DCA

1 stop8h 39mAmerican Airlines

Deal found 4/29

$567

Wed 9/37:00 amIAD - UVF

1 stop7h 15mDelta

Tue 9/93:38 pmUVF - IAD

1 stop8h 29mDelta

Deal found 4/29

$567

Tue 9/305:08 amIAD - UVF

2 stops8h 35mAmerican Airlines

Tue 10/74:10 pmUVF - IAD

1 stop7h 52mAmerican Airlines

Deal found 4/29

$572

Sun 8/106:53 amBWI - UVF

1 stop7h 27mDelta

Mon 8/183:35 pmUVF - BWI

1 stop8h 42mDelta

Deal found 4/29

$627

Thu 6/192:08 pmBWI - UVF

3 stops24h 07mMultiple Airlines

Sun 6/222:35 pmUVF - BWI

2 stops25h 11mMultiple Airlines

Deal found 4/29

$691

Thu 6/198:40 pmDCA - UVF

1 stop17h 35mMultiple Airlines

Sun 6/222:35 pmUVF - DCA

1 stop18h 17mMultiple Airlines

Deal found 4/29

$710

Fri 5/308:26 amBWI - SLU

2 stops28h 44mMultiple Airlines

Thu 6/56:20 pmSLU - BWI

2 stops29h 13mMultiple Airlines

Deal found 4/29

$793

Best flights from Washington, D.C. to Saint Lucia
Discover carefully curated flight deals from Washington, D.C. to Saint Lucia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2025.

Mon 6/22:25 pmIAD - UVF

1 stop23h 50mAir Canada

Fri 6/63:10 pmUVF - IAD

1 stop18h 31mAir Canada

Deal found 4/28

$418

Fri 9/56:30 amDCA - UVF

1 stop7h 29mJetBlue

Wed 9/103:05 pmUVF - DCA

1 stop7h 54mJetBlue

Deal found 4/29

$495

Thu 9/46:00 amIAD - UVF

1 stop8h 15mDelta

Mon 9/83:38 pmUVF - IAD

1 stop8h 29mDelta

Deal found 4/28

$495

Wed 6/49:45 amIAD - UVF

2 stops52h 30mMultiple Airlines

Sun 6/82:35 pmUVF - IAD

1 stop24h 31mMultiple Airlines

Deal found 4/28

$519

Sat 8/28:05 pmDCA - UVF

1 stop17h 55mAmerican Airlines

Fri 8/83:15 pmUVF - DCA

1 stop18h 09mAmerican Airlines

Deal found 4/29

$567

Sat 10/186:15 amIAD - UVF

1 stop7h 16mUnited Airlines

Sat 10/252:35 pmUVF - IAD

1 stop7h 54mUnited Airlines

Deal found 4/28

$837

Thu 5/298:40 pmDCA - UVF

1 stop17h 35mAir Canada

Tue 6/103:10 pmUVF - DCA

2 stops24h 39mAir Canada

Deal found 4/29

$428

Sat 8/161:18 pmIAD - UVF

2 stops24h 51mAmerican Airlines

Wed 8/203:25 pmUVF - IAD

2 stops21h 23mAmerican Airlines

Deal found 4/28

$572

Mon 6/95:35 amBWI - UVF

2 stops32h 40mMultiple Airlines

Fri 6/133:10 pmUVF - BWI

3 stops31h 06mMultiple Airlines

Deal found 4/28

$601

Wed 5/285:00 amBWI - UVF

1 stop9h 11mAmerican Airlines

Wed 6/43:14 pmUVF - BWI

1 stop8h 39mAmerican Airlines

Deal found 4/29

$607

Mon 5/195:40 amBWI - UVF

1 stop8h 26mDelta

Fri 5/233:26 pmUVF - BWI

1 stop9h 22mDelta

Deal found 4/28

$686

Thu 6/198:40 pmDCA - UVF

1 stop17h 35mMultiple Airlines

Sun 6/222:35 pmUVF - DCA

1 stop18h 17mMultiple Airlines

Deal found 4/29

$710

Last-minute flights from Washington, D.C. to Saint Lucia
Discover last-minute flight deals from Washington, D.C. to Saint Lucia. Data last updated April 30, 2025 and is based on user searches.

Sun 5/49:40 amDCA - SLU

3 stops31h 50mMultiple Airlines

Fri 5/912:15 pmSLU - DCA

3 stops27h 34mMultiple Airlines

Deal found 4/29

$1,092

Tue 5/66:09 amDCA - UVF

1 stop7h 40mJetBlue

Sat 5/1012:25 pmUVF - DCA

1 stop10h 33mJetBlue

Deal found 4/29

$723

Tue 5/66:00 amIAD - UVF

1 stop7h 59mDelta

Mon 5/123:26 pmUVF - IAD

1 stop9h 02mDelta

Deal found 4/29

$1,495

Wed 5/76:30 amBWI - UVF

1 stop7h 41mAmerican Airlines

Wed 5/143:14 pmUVF - BWI

1 stop8h 39mAmerican Airlines

Deal found 4/29

$792

Wed 5/75:02 amIAD - UVF

1 stop9h 09mAmerican Airlines

Wed 5/143:14 pmUVF - IAD

1 stop17h 24mAmerican Airlines

Deal found 4/29

$792

Wed 5/76:00 amDCA - UVF

1 stop8h 06mDelta

Mon 5/123:26 pmUVF - DCA

1 stop8h 17mDelta

Deal found 4/29

$1,495

Fri 5/95:00 amDCA - UVF

1 stop9h 11mAmerican Airlines

Wed 5/143:14 pmUVF - DCA

1 stop17h 29mAmerican Airlines

Deal found 4/29

$817

Fri 5/95:40 amBWI - UVF

1 stop8h 26mDelta

Sun 5/183:26 pmUVF - BWI

1 stop9h 22mDelta

Deal found 4/29

$882

Fri 5/96:43 pmIAD - UVF

2 stops43h 02mWestJet

Sun 5/182:35 pmUVF - IAD

2 stops27h 19mWestJet

Deal found 4/29

$2,350

Fri 5/96:55 pmDCA - UVF

2 stops42h 50mWestJet

Sun 5/182:35 pmUVF - DCA

2 stops28h 24mWestJet

Deal found 4/29

$3,515

Fri 5/91:00 pmBWI - UVF

2 stops48h 45mWestJet

Sun 5/182:35 pmUVF - BWI

2 stops49h 48mWestJet

Deal found 4/29

$4,357

Sat 5/106:00 amDCA - UVF

1 stop8h 06mDelta

Thu 5/153:26 pmUVF - DCA

1 stop8h 17mDelta

Deal found 4/28

$796

One-way flights from Washington, D.C. to Saint Lucia
Search for one-way flight options from Washington, D.C. to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated April 30, 2025.

Mon 5/128:46 pmBWI - SLU

2 stops36h 44mMultiple Airlines

Deal found 4/28

$306

Fri 5/96:09 amDCA - UVF

1 stop7h 40mJetBlue

Deal found 4/29

$311

Sat 5/1012:51 pmBWI - UVF

2 stops24h 54mMultiple Airlines

Deal found 4/28

$350

Sat 5/106:59 amDCA - UVF

1 stop7h 07mDelta

Deal found 4/29

$351

Sat 5/106:00 amIAD - UVF

1 stop8h 06mDelta

Deal found 4/29

$351

Tue 6/35:02 amIAD - UVF

1 stop9h 09mAmerican Airlines

Deal found 4/29

$363

Sat 5/108:17 pmBWI - UVF

1 stop17h 54mAmerican Airlines

Deal found 4/29

$408

Sat 5/1010:15 pmDCA - UVF

2 stops15h 19mAmerican Airlines

Deal found 4/29

$414

Sat 5/105:40 amBWI - UVF

1 stop8h 26mDelta

Deal found 4/28

$433

Sun 5/112:21 amIAD - SLU

2 stops13h 34mMultiple Airlines

Deal found 4/28

$492

Fri 5/911:00 amDCA - UVF

3 stops50h 45mWestJet

Deal found 4/29

$700

Fri 6/610:18 pmIAD - UVF

1 stop17h 12mUnited Airlines

Deal found 4/29

$856

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Saint Lucia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreCastries

BWI - UVF

BWIUVF

Baltimore/Washington

Wed 9/3

6:35 am-1:43 pm

1 stop7h 08m

Castries Hewanorra

Tue 9/9

3:34 pm-11:38 pm

1 stop8h 04m

$427

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Thu 5/29

8:40 pm-2:15 pm

1 stop17h 35m

Castries Hewanorra

Tue 6/10

3:10 pm-3:49 pm

2 stops24h 39m

$428

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Thu 5/29

10:25 am-2:15 pm

1 stop27h 50m

Castries Hewanorra

Tue 6/10

3:10 pm-1:41 pm

1 stop22h 31m

$428

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Fri 9/5

6:30 am-1:59 pm

1 stop7h 29m

Castries Hewanorra

Wed 9/10

3:05 pm-10:59 pm

1 stop7h 54m

$495

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Thu 5/29

12:55 pm-2:15 pm

3 stops25h 20m

Castries Hewanorra

Tue 6/10

3:10 pm-9:41 am

1 stop18h 31m

$546

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Wed 9/3

7:00 am-2:15 pm

1 stop7h 15m

Castries Hewanorra

Tue 9/9

3:38 pm-12:07 am

1 stop8h 29m

$567

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Sat 8/2

8:05 pm-2:00 pm

1 stop17h 55m

Castries Hewanorra

Fri 8/8

3:15 pm-9:24 am

1 stop18h 09m

$567

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Tue 9/30

5:08 am-1:43 pm

2 stops8h 35m

Castries Hewanorra

Tue 10/7

4:10 pm-12:02 am

1 stop7h 52m

$572

BaltimoreCastries

BWI - UVF

BWIUVF

Baltimore/Washington

Sun 8/10

6:53 am-2:20 pm

1 stop7h 27m

Castries Hewanorra

Mon 8/18

3:35 pm-12:17 am

1 stop8h 42m

$627

BaltimoreCastries

BWI - UVF

BWIUVF

Baltimore/Washington

Thu 6/19

2:08 pm-2:15 pm

3 stops24h 07m

Castries Hewanorra

Sun 6/22

2:35 pm-3:46 pm

2 stops25h 11m

$691

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 37 results

Best time to book a flight from Washington, D.C. to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Washington, D.C. 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 Washington, D.C. to Saint Lucia

What is the cheapest month to book a flight from Washington, D.C. to Saint Lucia?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Saint Lucia (average of $556). Flying from Washington, D.C. 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 WAS to LC?

When flying from Washington, D.C. 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

See what other customers who have flown with Delta, United Airlines and JetBlue from Washington, D.C. to Saint Lucia have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,936 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

7,936 reviews

Delta

8.0

Very good

7,936 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

7,936 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

7,936 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

7,936 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.

WestJet

7.2

Good

2,826 reviews

Delta

8.0

Very good

7,936 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 are the cheapest airlines to fly from Washington, D.C. to Saint Lucia one-way?
For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $311. Users have also found prices from $351 and $363 on Delta and American Airlines, respectively.
What are the most popular routes from Washington, D.C. to Saint Lucia?
The most popular route from Washington, D.C. to Saint Lucia is Washington, D.C. Dulles Intl - Castries Hewanorra. You may also consider Baltimore/Washington - Castries Hewanorra or Washington, D.C. Reagan-National - Castries Hewanorra.
Can I find deals for flights from Washington, D.C. to Saint Lucia that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Saint Lucia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Saint Lucia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Saint Lucia.
Can I find deals for business class flights from Washington, D.C. to Saint Lucia?
Yes. Cheapflights offers flight deals from Washington, D.C. 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 Washington, D.C. to Saint Lucia?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Saint Lucia (average of $556). Flying from Washington, D.C. 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 Washington, D.C. to Saint Lucia

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Top 3 airlines flying from Washington, D.C. to Saint Lucia

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest$313	Average$709	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$391	Average$754	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$535	Average$757	FlexibilityNo cancel fee	On-time71%

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$218+ Cheap flights from Washington, D.C. (WAS) 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Saint Lucia with Cheapflights

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Cheap flight deals from Washington, D.C. to Saint Lucia

Keep the following information in mind while searching for Washington, D.C. to Saint Lucia flight deals. Data was last updated April 30, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Washington, D.C. to Saint Lucia

Cheapest flights from Washington, D.C. to Saint LuciaExplore the most affordable flight options available from Washington, D.C. to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Explore the most affordable flight options available from Washington, D.C. to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Saint Lucia that are best for you.

Best time to book a flight from Washington, D.C. to Saint Lucia

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

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Saint Lucia

What is the cheapest month to book a flight from Washington, D.C. to Saint Lucia?

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

Find hourly flight availability from Washington, D.C. 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 30, 2025.

Reviews of airlines servicing Saint Lucia

See what other customers who have flown with Delta, United Airlines and JetBlue from Washington, D.C. to Saint Lucia have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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 are the cheapest airlines to fly from Washington, D.C. to Saint Lucia one-way?

What are the most popular routes from Washington, D.C. to Saint Lucia?

Can I find deals for flights from Washington, D.C. to Saint Lucia that include hotel bookings?

How can I find direct flights from Washington, D.C. to Saint Lucia?

Can I find deals for business class flights from Washington, D.C. to Saint Lucia?

What is the cheapest month to book a flight from Washington, D.C. 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 Washington, D.C. to Saint Lucia

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

Top 3 airlines flying from Washington, D.C. to Saint Lucia

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Cheapest flights from Washington, D.C. to Saint Lucia
Explore the most affordable flight options available from Washington, D.C. to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.