HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Saint Lucia

$136+ 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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — UVF
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$395
(Priceline)

One-way from

$136
(Travelocity)

Popular in

December

Cheapest in

October

Average price

$601
Provider with most accurate pricing for Washington, D.C. (WAS)-Castries George F. L. Charle flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Castries George F. L. Charle flights.
Search Deals
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. 5% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 16, 2025.

This Mytrip deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/254:35 pmDCA - UVF
2 stops22h 50mAir Canada
Fri 10/314:15 pmUVF - DCA
1 stop30h 20mAir Canada
Deal found 10/14$328
This Air Canada deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/28:40 pmDCA - UVF
1 stop18h 45mAir Canada
Wed 12/105:15 pmUVF - DCA
1 stop16h 40mAir Canada
Deal found 10/14$358
This JetBlue deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:24 amDCA - UVF
1 stop7h 33mJetBlue
Sat 11/151:56 pmUVF - DCA
1 stop10h 03mJetBlue
Deal found 10/16$387
This Priceline deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/186:24 amDCA - UVF
1 stop7h 33mJetBlue
Fri 11/215:01 pmUVF - DCA
1 stop23h 16mJetBlue
Deal found 10/15$395
This JetBlue deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/296:05 amDCA - UVF
1 stop10h 34mJetBlue
Sat 12/62:00 pmUVF - DCA
1 stop9h 58mJetBlue
Deal found 10/14$411
This Expedia deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/186:24 amDCA - UVF
1 stop7h 33mJetBlue
Thu 11/275:01 pmUVF - DCA
1 stop22h 58mJetBlue
Deal found 10/14$416
This Priceline deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:00 amDCA - UVF
1 stop8h 42mJetBlue
Sat 12/62:00 pmUVF - DCA
1 stop9h 58mJetBlue
Deal found 10/14$427
This Air Canada deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/28:40 pmDCA - UVF
1 stop18h 45mAir Canada
Fri 12/55:15 pmUVF - DCA
2 stops18h 11mAir Canada
Deal found 10/16$428
This Air Canada deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/24:30 pmIAD - UVF
1 stop22h 55mAir Canada
Wed 12/105:15 pmUVF - IAD
1 stop23h 31mAir Canada
Deal found 10/15$428
This Priceline deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:42 pmIAD - UVF
2 stops26h 43mAir Canada
Fri 12/55:15 pmUVF - IAD
2 stops28h 44mAir Canada
Deal found 10/16$449
This Priceline deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/110:12 pmIAD - UVF
2 stops41h 13mAir Canada
Fri 12/55:15 pmUVF - IAD
2 stops28h 44mAir Canada
Deal found 10/16$459
This Delta deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/187:00 amBWI - UVF
1 stop7h 39mDelta
Thu 11/274:59 pmUVF - BWI
1 stop8h 27mDelta
Deal found 10/16$463

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Saint Lucia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 16, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Saint Lucia that are best for you.

Fly from

Washington, D.C.

Fly to

Saint Lucia

Route

Depart

Return

Price

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Tue 12/2

12:55 pm-4:25 pm

2 stops26h 30m

Castries Hewanorra

Wed 12/10

5:15 pm-6:05 pm

1 stop25h 50m

$358

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Tue 11/18

6:24 am-2:57 pm

1 stop7h 33m

Castries Hewanorra

Fri 11/21

5:01 pm-3:17 pm

1 stop23h 16m

$395

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Tue 11/18

6:24 am-2:57 pm

1 stop7h 33m

Castries Hewanorra

Thu 11/27

5:01 pm-2:59 pm

1 stop22h 58m

$416

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Tue 12/2

8:40 pm-4:25 pm

1 stop18h 45m

Castries Hewanorra

Fri 12/5

5:15 pm-8:55 am

1 stop16h 40m

$428

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Sat 12/6

8:40 pm-4:25 pm

1 stop18h 45m

Castries Hewanorra

Wed 12/10

5:15 pm-3:31 pm

2 stops23h 16m

$428

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Tue 12/2

5:50 pm-4:25 pm

2 stops21h 35m

Castries Hewanorra

Wed 12/10

5:15 pm-3:46 pm

1 stop23h 31m

$433

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Mon 12/1

12:55 pm-4:25 pm

2 stops50h 30m

Castries Hewanorra

Fri 12/5

5:15 pm-6:05 pm

1 stop25h 50m

$438

BaltimoreCastries

BWI - UVF

BWIUVF

Baltimore/Washington

Tue 1/13

6:00 am-3:04 pm

1 stop8h 04m

Castries Hewanorra

Wed 1/14

4:24 pm-12:11 am

1 stop8h 47m

$463

BaltimoreCastries

BWI - UVF

BWIUVF

Baltimore/Washington

Sun 2/1

6:36 pm-1:47 pm

1 stop18h 11m

Castries Hewanorra

Thu 2/5

2:56 pm-11:59 pm

1 stop10h 03m

$463

BaltimoreCastries

BWI - UVF

BWIUVF

Baltimore/Washington

Tue 1/20

6:00 am-3:04 pm

1 stop8h 04m

Castries Hewanorra

Thu 1/22

4:24 pm-12:11 am

1 stop8h 47m

$463

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

Showing 1-10 of 60 results
1
2
3
...
6

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, November is the cheapest month in which you can book a flight from Washington, D.C. to Saint Lucia (average of $179). Flying from Washington, D.C. to Saint Lucia in June is currently the most expensive (average of $649). 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?

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 October 16, 2025.

It’s typically best to fly out from Washington, D.C. to Saint Lucia at noon. Doing so could potentially save you 10% on the flight price compared to flying in the morning, which is usually more expensive.

Reviews of airlines servicing Saint Lucia

Get insights into the airlines that provide service to Saint Lucia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Saint Lucia. Reviews last updated October 16, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Saint Lucia, such as Delta, American Airlines, and JetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,984 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
8.0
Very good
7,984 reviews
Delta
8.0
Very good
7,984 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,043 reviews
Delta
8.0
Very good
7,984 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
JetBlue
7.2
Good
2,908 reviews
Delta
8.0
Very good
7,984 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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.

  • How long is the flight from Washington, D.C. to Saint Lucia?

    Airlines like Air Canada, JetBlue, and Delta fly from Washington, D.C. to Saint Lucia in about 7h 33m. The time it takes to get you to your destination can typically vary by up to 18h 57m. The distance from Washington, D.C. to Saint Lucia is about 1993 mi. This flight may include one or multiple stops.

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

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $136. Users have also found prices from $158 and $181 on JetBlue 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, November is the cheapest month in which you can book a flight from Washington, D.C. to Saint Lucia (average of $179). Flying from Washington, D.C. to Saint Lucia in June is currently the most expensive (average of $649). 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

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.
Dulles Intl to Luis Munoz Marin Intl flights
Reagan-National to Luis Munoz Marin Intl flights
Dulles Intl to Punta Cana flights
Dulles Intl to Oranjestad flights
Dulles Intl to Montego Bay flights
Dulles Intl to Saint Thomas Island flights
Reagan-National to Punta Cana flights
Reagan-National to Montego Bay flights
Reagan-National to Oranjestad flights
Dulles Intl to Providenciales flights
Dulles Intl to Nassau flights
Reagan-National to Saint Thomas Island flights
Dulles Intl to Santo Domingo flights
Reagan-National to Nassau flights
Dulles Intl to Simpson Bay flights
Reagan-National to Santo Domingo flights
Reagan-National to Providenciales flights
Reagan-National to Simpson Bay flights
Dulles Intl to Willemstad flights
Dulles Intl to Castries flights
Dulles Intl to Ponce flights
Dulles Intl to George Town flights
Reagan-National to George Town flights
Dulles Intl to Bridgetown flights
Reagan-National to Castries flights
Dulles Intl to Kingston flights
Dulles Intl to Port of Spain flights
Reagan-National to Bridgetown flights
Reagan-National to Kingston flights
Reagan-National to Willemstad flights
Dulles Intl to St. John's flights
Dulles Intl to Christiansted flights
Reagan-National to St. John's flights
Reagan-National to Christiansted flights
Reagan-National to Port of Spain flights
Dulles Intl to Puerto Plata flights
Dulles Intl to Road Town flights
Reagan-National to Puerto Plata flights
Dulles Intl to Santiago de los Caballeros flights
Reagan-National to Santiago de los Caballeros flights
Dulles Intl to The Valley flights
Dulles Intl to Georgetown flights
Dulles Intl to Kralendijk flights
Reagan-National to Aguadilla flights
Reagan-National to Road Town flights
Dulles Intl to St. George's flights
Reagan-National to Georgetown flights
Reagan-National to Marsh Harbour flights
Reagan-National to Basseterre flights
Reagan-National to St. George's flights

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

Discover the top 3 airlines that operate flights from Washington, D.C. to Saint Lucia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$179Average$656FlexibilityNo cancel feeOn-time62%
DeltaCheapest$385Average$792FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$461Average$781FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.