HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Saint Lucia

$161+ 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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — UVF
4月 5 — 4月 121
週六 4/5
週六 4/12
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 3月 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$491
(Delta)

One-way from

$161
(Air Canada)

Popular in

December

Cheapest in

January

Average price

$697
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. 11% potential increase in price ($99 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 March 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 3月 31, 2025.

This Air Canada deal was found by Cheapflights users on 3/29. 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.
週一 6/168:40 pmDCA - UVF
1 stop17h 35mAir Canada
週五 6/203:10 pmUVF - DCA
1 stop17h 42mAir Canada
Deal found 3/29$481
This Delta deal was found by Cheapflights users on 3/30. 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.
週三 5/147:00 amBWI - UVF
1 stop7h 06mDelta
週三 5/213:26 pmUVF - BWI
1 stop9h 22mDelta
Deal found 3/30$491
This American Airlines deal was found by Cheapflights users on 3/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週五 5/96:30 amBWI - UVF
1 stop7h 41mAmerican Airlines
週四 5/153:14 pmUVF - BWI
2 stops18h 45mAmerican Airlines
Deal found 3/31$496
This Air Canada deal was found by Cheapflights users on 3/31. 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.
週四 5/810:30 amIAD - UVF
1 stop27h 45mAir Canada
週二 5/133:10 pmUVF - IAD
1 stop18h 29mAir Canada
Deal found 3/31$516
This Delta deal was found by Cheapflights users on 3/31. 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.
週二 5/136:00 amDCA - UVF
1 stop8h 06mDelta
週二 5/203:26 pmUVF - DCA
1 stop8h 17mDelta
Deal found 3/31$567
This Delta deal was found by Cheapflights users on 3/31. 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.
週三 5/76:00 amIAD - UVF
1 stop8h 06mDelta
週三 5/143:26 pmUVF - IAD
1 stop8h 09mDelta
Deal found 3/31$567
This American Airlines deal was found by Cheapflights users on 3/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週三 5/286:40 amDCA - UVF
1 stop7h 31mAmerican Airlines
週三 6/43:14 pmUVF - DCA
2 stops15h 45mAmerican Airlines
Deal found 3/30$572
This American Airlines deal was found by Cheapflights users on 3/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週六 5/105:26 pmIAD - UVF
2 stops20h 08mAmerican Airlines
週三 5/142:34 pmUVF - IAD
2 stops18h 04mAmerican Airlines
Deal found 3/31$572
This JetBlue Airways deal was found by Cheapflights users on 3/31. 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 Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週二 5/66:09 amDCA - UVF
1 stop7h 40mJetBlue
週六 5/1012:25 pmUVF - DCA
1 stop10h 33mJetBlue
Deal found 3/31$573
This Mytrip deal was found by Cheapflights users on 3/31. 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.
週四 6/1211:52 amIAD - UVF
2 stops26h 23mMultiple Airlines
週日 6/222:35 pmUVF - IAD
1 stop19h 41mMultiple Airlines
Deal found 3/31$712
This Mytrip deal was found by Cheapflights users on 3/31. 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.
週三 7/912:55 pmDCA - UVF
2 stops49h 20mMultiple Airlines
週日 7/132:35 pmUVF - DCA
2 stops31h 13mMultiple Airlines
Deal found 3/31$813
This WestJet deal was found by Cheapflights users on 3/31. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週三 7/236:45 pmIAD - UVF
2 stops19h 00mWestJet
週日 7/272:35 pmUVF - IAD
2 stops27h 19mWestJet
Deal found 3/31$825

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 3月 31, 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

週一 6/16

8:40 pm-2:15 pm

1 stop17h 35m

Castries Hewanorra

週五 6/20

3:10 pm-10:18 am

2 stops19h 08m

$481

BaltimoreCastries

BWI - UVF

BWIUVF

Baltimore/Washington

週三 5/14

7:00 am-2:06 pm

1 stop7h 06m

Castries Hewanorra

週三 5/21

3:26 pm-12:48 am

1 stop9h 22m

$491

BaltimoreCastries

BWI - UVF

BWIUVF

Baltimore/Washington

週五 5/9

5:00 am-2:11 pm

1 stop9h 11m

Castries Hewanorra

週四 5/15

2:34 pm-9:56 am

2 stops19h 22m

$496

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

週四 5/8

10:30 am-2:15 pm

1 stop27h 45m

Castries Hewanorra

週二 5/13

3:10 pm-9:39 am

1 stop18h 29m

$516

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

週二 5/13

6:00 am-2:06 pm

1 stop8h 06m

Castries Hewanorra

週二 5/20

3:26 pm-11:43 pm

1 stop8h 17m

$567

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

週三 5/7

6:00 am-2:06 pm

1 stop8h 06m

Castries Hewanorra

週三 5/14

3:26 pm-11:35 pm

1 stop8h 09m

$567

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

週三 5/28

6:40 am-2:11 pm

1 stop7h 31m

Castries Hewanorra

週三 6/4

3:14 pm-6:59 am

2 stops15h 45m

$572

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

週六 5/10

5:26 pm-1:34 pm

2 stops20h 08m

Castries Hewanorra

週三 5/14

2:34 pm-8:38 am

2 stops18h 04m

$572

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

週二 5/6

6:09 am-1:49 pm

1 stop7h 40m

Castries Hewanorra

週六 5/10

12:25 pm-10:58 pm

1 stop10h 33m

$573

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

週四 6/12

11:52 am-2:15 pm

2 stops26h 23m

Castries Hewanorra

週日 6/22

2:35 pm-10:16 am

1 stop19h 41m

$712

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 29 results
1
2
3

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?

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 3月 31, 2025.

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

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 3月 31, 2025.
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
7,899 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

8.0

Entertainment

7.9

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
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

8.0

Entertainment

7.9

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
8,614 reviews
Delta
8.0
Very good
7,899 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

8.0

Entertainment

7.9

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
2,924 reviews
Delta
8.0
Very good
7,899 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

8.0

Entertainment

7.9

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
7,899 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

8.0

Entertainment

7.9

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
2,789 reviews
Delta
8.0
Very good
7,899 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

8.0

Entertainment

7.9

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

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?

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $161. Users have also found prices from $318 and $447 on American Airlines and Delta, 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

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

Top 2 airlines flying from Washington, D.C. to Saint Lucia

Discover the top 2 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 3月 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$535Average$762FlexibilityNo cancel feeOn-time71%
DeltaCheapest$550Average$750FlexibilityNo cancel feeOn-timeN/A
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.