HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Saint Lucia

$178+ 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 6/15. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — UVF
Jun 13 — Jun 201
Sat 6/13
Sat 6/20
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

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 May 14, 2026.

This FlightHub deal was found by Cheapflights users on 5/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1710:10 pm
IAD
-
UVF
2 stops40h 10m
Air Canada
Tue 6/233:15 pm
UVF
-
IAD
2 stops29h 58m
Air Canada
Deal found 5/13$450
This Air Canada deal was found by Cheapflights users on 5/12. 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.
Mon 6/1512:45 pm
DCA
-
UVF
2 stops25h 25m
Air Canada
Fri 6/193:15 pm
UVF
-
DCA
1 stop17h 37m
Air Canada
Deal found 5/12$456
This Air Canada deal was found by Cheapflights users on 5/13. 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.
Mon 6/112:45 pm
DCA
-
UVF
2 stops25h 25m
Air Canada
Fri 6/53:05 pm
UVF
-
DCA
2 stops24h 34m
Air Canada
Deal found 5/13$460
This Orbitz deal was found by Cheapflights users on 5/12. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/83:45 pm
IAD
-
UVF
2 stops22h 25m
Air Canada
Fri 6/123:05 pm
UVF
-
IAD
1 stop24h 24m
Air Canada
Deal found 5/12$460
This Air Canada deal was found by Cheapflights users on 5/13. 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.
Mon 6/110:10 pm
IAD
-
UVF
2 stops16h 00m
Air Canada
Fri 6/53:05 pm
UVF
-
IAD
1 stop24h 24m
Air Canada
Deal found 5/13$461
This Justfly.com deal was found by Cheapflights users on 5/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/812:45 pm
DCA
-
UVF
2 stops25h 25m
Air Canada
Fri 6/123:05 pm
UVF
-
DCA
2 stops20h 56m
Air Canada
Deal found 5/12$466
This FlightHub deal was found by Cheapflights users on 5/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1510:10 pm
IAD
-
UVF
2 stops16h 00m
Air Canada
Fri 6/193:15 pm
UVF
-
IAD
2 stops16h 29m
Air Canada
Deal found 5/12$466
This Justfly.com deal was found by Cheapflights users on 5/14. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2710:10 pm
IAD
-
UVF
2 stops39h 55m
Air Canada
Tue 6/23:05 pm
UVF
-
IAD
1 stop25h 08m
Air Canada
Deal found 5/14$468
This FlightHub deal was found by Cheapflights users on 5/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:45 pm
DCA
-
UVF
2 stops49h 20m
Air Canada
Tue 6/23:05 pm
UVF
-
DCA
1 stop28h 53m
Air Canada
Deal found 5/14$477
This Mytrip deal was found by Cheapflights users on 5/11. 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.
Mon 6/2210:10 pm
IAD
-
UVF
2 stops16h 10m
Air Canada
Fri 6/263:15 pm
UVF
-
IAD
2 stops16h 29m
Air Canada
Deal found 5/11$477
This Gotogate deal was found by Cheapflights users on 5/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/226:00 am
DCA
-
UVF
2 stops32h 20m
Air Canada
Fri 6/263:15 pm
UVF
-
DCA
2 stops20h 45m
Air Canada
Deal found 5/11$480
This Air Canada deal was found by Cheapflights users on 5/10. 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.
Thu 6/410:10 pm
IAD
-
UVF
2 stops16h 00m
Air Canada
Tue 6/93:05 pm
UVF
-
IAD
1 stop24h 24m
Air Canada
Deal found 5/10$483

Find 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 May 14, 2026.

Round-trip from

$450
(FlightHub)

One-way from

$178
(Air Canada)

Popular in

November

Cheapest in

December

Average price

$905
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. 6% potential increase in price ($62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease ($89 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 May 14, 2026.
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

Cheapest round-trip

BaltimoreCastries

BWI - UVF

BWIUVF

Baltimore/Washington

Wed 5/27

6:00 am-2:05 pm

1 stop8h 05m

Castries Hewanorra

Tue 6/2

3:25 pm-12:47 am

1 stop9h 22m

$518

BaltimoreCastries

BWI - UVF

BWIUVF

Baltimore/Washington

Thu 5/28

7:00 am-2:05 pm

1 stop7h 05m

Castries Hewanorra

Wed 6/3

3:25 pm-12:47 am

1 stop9h 22m

$518

BaltimoreCastries

BWI - UVF

BWIUVF

Baltimore/Washington

Mon 5/25

7:41 pm-2:05 pm

1 stop18h 24m

Castries Hewanorra

Mon 6/1

3:25 pm-9:23 am

1 stop17h 58m

$518

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Thu 8/6

12:40 pm-2:20 pm

2 stops25h 40m

Castries Hewanorra

Tue 8/11

3:05 pm-10:18 am

2 stops19h 13m

$562

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Mon 5/25

12:45 pm-2:05 pm

2 stops25h 20m

Castries Hewanorra

Fri 5/29

3:05 pm-9:55 pm

2 stops30h 50m

$598

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Mon 6/22

8:40 pm-2:20 pm

1 stop17h 40m

Castries Hewanorra

Mon 6/29

4:32 pm-9:54 pm

2 stops29h 22m

$636

BaltimoreCastries

BWI - UVF

BWIUVF

Baltimore/Washington

Thu 10/1

7:06 pm-1:50 pm

1 stop18h 44m

Castries Hewanorra

Wed 10/7

2:20 pm-11:59 pm

1 stop9h 39m

$640

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Mon 7/6

5:40 pm-12:08 pm

1 stop18h 28m

Castries Hewanorra

Sat 7/11

3:32 pm-11:53 pm

1 stop8h 21m

$691

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Sun 7/19

5:06 pm-2:20 pm

2 stops45h 14m

Castries Hewanorra

Fri 7/24

3:05 pm-3:01 pm

2 stops23h 56m

$703

BaltimoreCastries

BWI - UVF

BWIUVF

Baltimore/Washington

Sat 7/4

6:00 am-2:13 pm

1 stop8h 13m

Castries Hewanorra

Wed 7/8

3:33 pm-12:39 am

1 stop9h 06m

$724

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/13

Showing 1-10 of 60 resultsSorted by cheapest first
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

How far ahead should I book a flight from Washington, D.C. to Saint Lucia?

Booking 35 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to Saint Lucia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, April is the cheapest month in which you can book a flight from Washington, D.C. to Saint Lucia (average of $70). Flying from Washington, D.C. to Saint Lucia in October is currently the most expensive (average of $413). 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 May 14, 2026.
Read through reviews of airlines operating flights from Washington, D.C. to Saint Lucia, such as Delta,JetBlue, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,453 reviews

Boarding

8.1

Entertainment

7.8

Overall

7.9

Food

7.2

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,453 reviews
Delta
7.9
Good
8,453 reviews

Boarding

8.1

Entertainment

7.8

Overall

7.9

Food

7.2

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
JetBlue
7.2
Good
2,975 reviews
Delta
7.9
Good
8,453 reviews

Boarding

8.1

Entertainment

7.8

Overall

7.9

Food

7.2

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,663 reviews
Delta
7.9
Good
8,453 reviews

Boarding

8.1

Entertainment

7.8

Overall

7.9

Food

7.2

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Air Canada
7.1
Good
11,042 reviews
Delta
7.9
Good
8,453 reviews

Boarding

8.1

Entertainment

7.8

Overall

7.9

Food

7.2

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 Delta, Air Canada, and American Airlines fly from Washington, D.C. to Saint Lucia in about 8h 05m. The time it takes to get you to your destination can typically vary by up to 17h 35m. The distance from Washington, D.C. to Saint Lucia is about 2000 mi. This flight may include one or multiple stops.

  • 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 Washington, D.C. Reagan-National - Castries Hewanorra or Baltimore/Washington - 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, April is the cheapest month in which you can book a flight from Washington, D.C. to Saint Lucia (average of $70). Flying from Washington, D.C. to Saint Lucia in October is currently the most expensive (average of $413). 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.

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 May 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$179Average$582FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$351Average$834FlexibilityNo cancel feeOn-time71%
DeltaCheapest$452Average$841FlexibilityNo 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.