HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Saint Lucia

$123+ Cheap flights from Reagan-National (DCA) 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — UVF
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National 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 Reagan-National to Saint Lucia

Cheapest flights from Reagan-National to Saint Lucia
Explore the most affordable flight options available from Reagan-National to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This American Airlines deal was found by Cheapflights users on 12/17. 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.
Tue 12/307:50 pmDCA - UVF
2 stops16h 14mAmerican Airlines
Mon 1/53:53 pmUVF - DCA
1 stop8h 06mAmerican Airlines
Deal found 12/17$905
This Expedia deal was found by Cheapflights users on 12/17. 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.
Wed 12/248:54 pmDCA - UVF
2 stops17h 53mJetBlue
Wed 12/315:10 pmUVF - DCA
2 stops21h 50mJetBlue
Deal found 12/17$1,089
This Expedia deal was found by Cheapflights users on 12/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/289:10 amDCA - UVF
2 stops29h 37mJetBlue
Wed 12/315:10 pmUVF - DCA
2 stops20h 36mJetBlue
Deal found 12/15$1,107
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Tue 12/235:00 amDCA - UVF
1 stop9h 53mAmerican Airlines
Tue 12/303:53 pmUVF - DCA
1 stop18h 27mAmerican Airlines
Deal found 12/17$1,119
This American Airlines deal was found by Cheapflights users on 12/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:46 amDCA - UVF
1 stop7h 06mAmerican Airlines
Wed 12/312:04 pmUVF - DCA
1 stop10h 41mAmerican Airlines
Deal found 12/15$1,194
This American Airlines deal was found by Cheapflights users on 12/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/198:45 pmDCA - UVF
1 stop18h 08mAmerican Airlines
Sun 12/214:54 pmUVF - DCA
1 stop17h 06mAmerican Airlines
Deal found 12/15$1,289
This Expedia deal was found by Cheapflights users on 12/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:00 amDCA - UVF
2 stops32h 06mMultiple Airlines
Sun 12/215:15 pmUVF - DCA
2 stops20h 04mMultiple Airlines
Deal found 12/15$1,340
This Mytrip deal was found by Cheapflights users on 12/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:00 amDCA - SLU
2 stops12h 00mMultiple Airlines
Sun 1/45:00 amSLU - DCA
2 stops28h 55mMultiple Airlines
Deal found 12/15$1,661
This Mytrip deal was found by Cheapflights users on 12/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/276:00 amDCA - SLU
2 stops12h 00mMultiple Airlines
Fri 1/212:35 pmSLU - DCA
2 stops21h 20mMultiple Airlines
Deal found 12/16$2,534
This Mytrip deal was found by Cheapflights users on 12/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:59 amDCA - SLU
3 stops33h 36mMultiple Airlines
Fri 1/21:55 pmSLU - DCA
2 stops20h 00mMultiple Airlines
Deal found 12/15$2,564
This Expedia deal was found by Cheapflights users on 12/14. 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 12/306:50 pmDCA - SLU
2 stops13h 40mMultiple Airlines
Sat 1/36:20 pmSLU - DCA
2 stops53h 15mMultiple Airlines
Deal found 12/14$3,490
This Expedia deal was found by Cheapflights users on 12/17. 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 12/306:50 pmDCA - SLU
2 stops13h 40mMultiple Airlines
Mon 1/54:20 pmSLU - DCA
2 stops50h 45mMultiple Airlines
Deal found 12/17$3,498

Find flight deals from Reagan-National to Saint Lucia

Keep the following information in mind while searching for Reagan-National to Saint Lucia flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$339
(Delta)

One-way from

$123
(American Airlines)

Popular in

November

Cheapest in

October

Average price

$1,080
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. Reagan-National to Saint Lucia
Search Deals
One-way flight from Washington, D.C. Reagan-National to Saint Lucia
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($268 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease ($88 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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 December 18, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Saint Lucia that are best for you.

Fly from

Reagan-National

Fly to

Saint Lucia

Route

Depart

Return

Price

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Thu 1/8

8:35 pm-3:05 pm

1 stop17h 30m

Castries Hewanorra

Thu 1/15

4:25 pm-9:10 am

1 stop17h 45m

$339

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Thu 1/22

7:59 pm-1:46 pm

1 stop16h 47m

Castries Hewanorra

Mon 1/26

5:02 pm-9:00 am

1 stop16h 58m

$347

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Sun 2/8

5:55 am-4:02 pm

1 stop9h 07m

Castries Hewanorra

Thu 2/12

5:00 pm-9:09 am

1 stop17h 09m

$347

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Sun 1/11

6:59 am-3:03 pm

1 stop7h 04m

Castries Hewanorra

Thu 1/15

5:02 pm-9:00 am

1 stop16h 58m

$347

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Tue 3/3

7:59 pm-2:50 pm

1 stop17h 51m

Castries Hewanorra

Wed 3/11

2:57 pm-12:38 am

1 stop9h 41m

$347

Washington, D.C.Castries

DCA - SLU

DCASLU

Washington, D.C. Reagan-National

Mon 2/23

12:55 pm-7:00 pm

3 stops29h 05m

Castries George F. L. Charle

Sun 3/1

7:10 pm-3:33 pm

3 stops21h 23m

$918

Washington, D.C.Castries

DCA - SLU

DCASLU

Washington, D.C. Reagan-National

Wed 12/31

6:00 am-7:00 pm

2 stops12h 00m

Castries George F. L. Charle

Sun 1/4

5:00 am-8:55 am

2 stops28h 55m

$1,661

Washington, D.C.Castries

DCA - SLU

DCASLU

Washington, D.C. Reagan-National

Sat 12/27

6:00 am-7:00 pm

2 stops12h 00m

Castries George F. L. Charle

Fri 1/2

12:35 pm-8:55 am

2 stops21h 20m

$2,534

Washington, D.C.Castries

DCA - SLU

DCASLU

Washington, D.C. Reagan-National

Wed 12/24

6:59 am-5:35 pm

3 stops33h 36m

Castries George F. L. Charle

Fri 1/2

1:55 pm-8:55 am

2 stops20h 00m

$2,564

Washington, D.C.Castries

DCA - SLU

DCASLU

Washington, D.C. Reagan-National

Sun 3/1

9:40 am-3:35 pm

2 stops28h 55m

Castries George F. L. Charle

Thu 3/5

6:20 pm-7:45 pm

2 stops50h 25m

$3,365

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from Reagan-National to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Reagan-National 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. Reagan-National Airport to Saint Lucia

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Saint Lucia (average of $179). Flying from Washington, D.C. Reagan-National Airport to Saint Lucia in August is currently the most expensive (average of $632). 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.

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 December 18, 2025.
See what other customers who have flown with Delta, American Airlines, and JetBlue from Washington, D.C. Reagan-National Airport to Saint Lucia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,008 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,055 reviews
Delta
7.9
Good
8,008 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
JetBlue
7.2
Good
2,897 reviews
Delta
7.9
Good
8,008 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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. Reagan-National Airport to Saint Lucia?

    There are many flights that can get you from Washington, D.C. Reagan-National Airport to Saint Lucia in 16h 47m. Fly via Delta or American Airlines to get the fastest option. The distance between Washington, D.C. Reagan-National Airport and Saint Lucia is about 1993 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Reagan-National to Saint Lucia that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Saint Lucia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Saint Lucia?

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

  • Can I find deals for business class flights from Reagan-National to Saint Lucia?

    Yes. Cheapflights offers flight deals from Reagan-National 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. Reagan-National Airport to Saint Lucia?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Saint Lucia (average of $179). Flying from Washington, D.C. Reagan-National Airport to Saint Lucia in August is currently the most expensive (average of $632). 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 Reagan-National 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
Baltimore 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
Baltimore to Punta Cana flights
Dulles Intl to Saint Thomas Island flights
Reagan-National to Punta Cana flights
Dulles Intl to Montego Bay flights
Baltimore to Oranjestad flights
Baltimore to Montego Bay flights
Reagan-National to Saint Thomas Island flights
Dulles Intl to Providenciales flights
Dulles Intl to Nassau flights
Reagan-National to Oranjestad flights
Baltimore to Saint Thomas Island flights
Reagan-National to Nassau flights
Dulles Intl to Simpson Bay flights
Reagan-National to Montego Bay flights
Baltimore to Nassau flights
Dulles Intl to Santo Domingo flights
Dulles Intl to George Town flights
Reagan-National to Providenciales flights
Baltimore to Providenciales flights
Dulles Intl to Castries flights
Reagan-National to Simpson Bay flights
Dulles Intl to Ponce flights
Baltimore to Simpson Bay flights
Baltimore to Santo Domingo flights
Reagan-National to Santo Domingo flights
Dulles Intl to Willemstad flights
Baltimore to George Town flights
Reagan-National to Castries flights
Baltimore to Castries flights
Dulles Intl to Port of Spain flights
Reagan-National to George Town flights
Reagan-National to Port of Spain flights
Dulles Intl to Bridgetown flights
Dulles Intl to Christiansted flights
Reagan-National to Kingston flights
Baltimore to Willemstad flights
Baltimore to Kingston flights
Dulles Intl to Kingston flights
Reagan-National to Christiansted flights
Reagan-National to Willemstad flights
Baltimore to Bridgetown flights
Dulles Intl to St. John's flights
Reagan-National to Bridgetown flights
Baltimore to Port of Spain flights
Baltimore to Christiansted flights

Top 3 airlines flying from Reagan-National to Saint Lucia

Discover the top 3 airlines that operate flights from Reagan-National 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$225Average$402FlexibilityNo cancel feeOn-time62%
DeltaCheapest$385Average$672FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$567Average$753FlexibilityNo 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.