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$163+ 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — UVF
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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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 August 20, 2025.

Round-trip from

$367
(Trip.com)

One-way from

$163
(JetBlue)

Popular in

July

Cheapest in

January

Average price

$723
From Washington, D.C. (WAS) to Saint Lucia
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One-way flight from Washington, D.C. (WAS) to Saint Lucia
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Highest demand for flights based on searches. 6% potential increase in price ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 20, 2025.

This Trip.com deal was found by Cheapflights users on 8/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/811:00 amDCA - UVF
1 stop27h 15mAir Canada
Tue 9/163:10 pmUVF - DCA
1 stop26h 54mAir Canada
Deal found 8/18$367
This Trip.com deal was found by Cheapflights users on 8/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/82:25 pmIAD - UVF
1 stop23h 50mAir Canada
Tue 9/163:10 pmUVF - IAD
1 stop22h 28mAir Canada
Deal found 8/18$367
This Air Canada deal was found by Cheapflights users on 8/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/295:37 pmIAD - UVF
2 stops20h 38mAir Canada
Fri 10/33:10 pmUVF - IAD
2 stops25h 18mAir Canada
Deal found 8/17$404
This Air Canada deal was found by Cheapflights users on 8/18. 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 9/84:35 pmDCA - UVF
2 stops21h 40mAir Canada
Fri 9/193:10 pmUVF - DCA
2 stops20h 58mAir Canada
Deal found 8/18$408
This Air Canada deal was found by Cheapflights users on 8/18. 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 9/82:25 pmIAD - UVF
1 stop23h 50mAir Canada
Fri 9/193:10 pmUVF - IAD
1 stop18h 28mAir Canada
Deal found 8/18$408
This Priceline deal was found by Cheapflights users on 8/20. 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.
Sun 10/126:25 amDCA - UVF
1 stop7h 20mJetBlue
Thu 10/163:05 pmUVF - DCA
1 stop7h 51mJetBlue
Deal found 8/20$413
This Air Canada deal was found by Cheapflights users on 8/19. 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 12/24:10 pmDCA - UVF
2 stops23h 15mAir Canada
Wed 12/105:15 pmUVF - DCA
1 stop25h 50mAir Canada
Deal found 8/19$418
This Air Canada deal was found by Cheapflights users on 8/18. 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
Fri 12/55:15 pmUVF - IAD
1 stop23h 39mAir Canada
Deal found 8/18$418
This Air Canada deal was found by Cheapflights users on 8/19. 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
2 stops19h 24mAir Canada
Deal found 8/19$423
This Mytrip deal was found by Cheapflights users on 8/20. 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.
Thu 9/258:16 amIAD - UVF
2 stops29h 59mAir Canada
Tue 9/303:10 pmUVF - IAD
1 stop22h 28mAir Canada
Deal found 8/20$426
This Booking.com deal was found by Cheapflights users on 8/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:55 pmDCA - UVF
2 stops26h 30mAir Canada
Mon 11/35:15 pmUVF - DCA
2 stops18h 11mAir Canada
Deal found 8/19$427
This Priceline deal was found by Cheapflights users on 8/19. 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.
Thu 10/309:00 amIAD - UVF
1 stop30h 25mAir Canada
Mon 11/35:15 pmUVF - IAD
1 stop23h 39mAir Canada
Deal found 8/19$427

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 August 20, 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

Mon 9/8

11:00 am-2:15 pm

1 stop27h 15m

Castries Hewanorra

Tue 9/16

3:10 pm-6:04 pm

1 stop26h 54m

$367

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 9/8

2:25 pm-2:15 pm

1 stop23h 50m

Castries Hewanorra

Tue 9/16

3:10 pm-1:38 pm

1 stop22h 28m

$367

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 9/29

5:37 pm-2:15 pm

2 stops20h 38m

Castries Hewanorra

Fri 10/3

3:10 pm-4:28 pm

2 stops25h 18m

$404

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Mon 9/8

4:35 pm-2:15 pm

2 stops21h 40m

Castries Hewanorra

Fri 9/19

3:10 pm-8:59 am

1 stop17h 49m

$408

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 9/8

2:25 pm-2:15 pm

1 stop23h 50m

Castries Hewanorra

Fri 9/19

3:10 pm-9:38 am

1 stop18h 28m

$408

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Sun 10/12

6:25 am-1:45 pm

1 stop7h 20m

Castries Hewanorra

Thu 10/16

3:05 pm-10:56 pm

1 stop7h 51m

$413

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Mon 12/1

6:59 am-4:25 pm

1 stop8h 26m

Castries Hewanorra

Wed 12/10

5:15 pm-3:31 pm

2 stops23h 16m

$418

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Tue 12/2

4:10 pm-4:25 pm

2 stops23h 15m

Castries Hewanorra

Wed 12/10

5:15 pm-6:05 pm

1 stop25h 50m

$418

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Tue 12/2

4:30 pm-4:25 pm

1 stop22h 55m

Castries Hewanorra

Wed 12/10

5:15 pm-3:54 pm

1 stop23h 39m

$418

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Tue 12/2

4:30 pm-4:25 pm

1 stop22h 55m

Castries Hewanorra

Fri 12/5

5:15 pm-3:54 pm

1 stop23h 39m

$418

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 54 results
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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 August 20, 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 August 20, 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
7,982 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
JetBlue
7.2
Good
2,916 reviews
Delta
8.0
Very good
7,982 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 and Delta fly from Washington, D.C. to Saint Lucia in about 8h 04m. The time it takes to get you to your destination can typically vary by up to 19h 11m. The distance from Washington, D.C. to Saint Lucia is about 2000 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 JetBlue. According to our data, you can fly for as low as $163. Users have also found prices from $166 and $197 on Air Canada 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

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Alternative routes for Washington, D.C. to Saint Lucia

See prices for flight routes from nearby airports that may be better suited for you.
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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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$179Average$658FlexibilityNo cancel feeOn-time62%
DeltaCheapest$385Average$739FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$555Average$790FlexibilityNo cancel feeOn-time71%

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