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$169+ 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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — UVF
Apr 27 — May 41
Sun 4/27
Sun 5/4
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 April 22, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$440
(Air Canada)

One-way from

$169
(Booking.com)

Popular in

December

Cheapest in

January

Average price

$779
Provider with most accurate pricing for Washington, D.C. (WAS)-Castries George F. L. Charle flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Castries George F. L. Charle flights.
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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. 11% potential increase in price ($100 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 22, 2025.

This Air Canada deal was found by Cheapflights users on 4/21. 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 6/98:40 pmDCA - UVF
1 stop17h 35mAir Canada
Fri 6/133:10 pmUVF - DCA
1 stop17h 43mAir Canada
Deal found 4/21$446
This Justfly.com deal was found by Cheapflights users on 4/22. 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 9/39:45 amIAD - UVF
2 stops52h 30mAir Canada
Tue 9/93:10 pmUVF - IAD
1 stop18h 28mAir Canada
Deal found 4/22$459
This Delta deal was found by Cheapflights users on 4/22. 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 5/136:00 amDCA - UVF
1 stop8h 06mDelta
Sat 5/173:26 pmUVF - DCA
1 stop8h 17mDelta
Deal found 4/22$495
This Delta deal was found by Cheapflights users on 4/22. 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 5/137:05 amIAD - UVF
1 stop7h 01mDelta
Sat 5/173:26 pmUVF - IAD
1 stop8h 09mDelta
Deal found 4/22$495
This American Airlines deal was found by Cheapflights users on 4/22. 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.
Wed 5/285:00 amBWI - UVF
1 stop9h 11mAmerican Airlines
Wed 6/43:14 pmUVF - BWI
1 stop8h 39mAmerican Airlines
Deal found 4/22$529
This JetBlue deal was found by Cheapflights users on 4/22. 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.
Wed 6/116:09 amDCA - UVF
1 stop7h 40mJetBlue
Sat 6/142:03 pmUVF - DCA
1 stop8h 56mJetBlue
Deal found 4/22$557
This Delta deal was found by Cheapflights users on 4/22. 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.
Wed 9/37:00 amBWI - UVF
1 stop7h 15mDelta
Tue 9/93:38 pmUVF - BWI
1 stop8h 34mDelta
Deal found 4/22$567
This American Airlines deal was found by Cheapflights users on 4/22. 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 12/95:00 amDCA - UVF
1 stop7h 00mAmerican Airlines
Tue 12/164:20 pmUVF - DCA
1 stop8h 39mAmerican Airlines
Deal found 4/22$567
This American Airlines deal was found by Cheapflights users on 4/22. 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 12/95:00 amIAD - UVF
1 stop8h 20mAmerican Airlines
Tue 12/165:05 pmUVF - IAD
1 stop7h 50mAmerican Airlines
Deal found 4/22$567
This Booking.com deal was found by Cheapflights users on 4/22. 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.
Sun 9/79:45 amIAD - UVF
2 stops52h 30mMultiple Airlines
Sun 9/142:35 pmUVF - IAD
2 stops27h 15mMultiple Airlines
Deal found 4/22$588
This Mytrip deal was found by Cheapflights users on 4/22. 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.
Fri 6/66:35 pmBWI - UVF
3 stops43h 10mMultiple Airlines
Fri 6/133:10 pmUVF - BWI
3 stops31h 06mMultiple Airlines
Deal found 4/22$731
This Mytrip deal was found by Cheapflights users on 4/22. 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.
Fri 6/64:35 pmDCA - UVF
3 stops45h 10mMultiple Airlines
Fri 6/133:10 pmUVF - DCA
2 stops19h 09mMultiple Airlines
Deal found 4/22$736

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 April 22, 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 6/9

12:55 pm-2:15 pm

2 stops25h 20m

Castries Hewanorra

Fri 6/13

3:10 pm-3:49 pm

2 stops24h 39m

$446

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Tue 5/13

6:00 am-2:06 pm

1 stop8h 06m

Castries Hewanorra

Sat 5/17

3:26 pm-11:43 pm

1 stop8h 17m

$495

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Tue 5/13

7:05 am-2:06 pm

1 stop7h 01m

Castries Hewanorra

Sat 5/17

3:26 pm-11:35 pm

1 stop8h 09m

$495

BaltimoreCastries

BWI - UVF

BWIUVF

Baltimore/Washington

Wed 5/28

5:00 am-2:11 pm

1 stop9h 11m

Castries Hewanorra

Wed 6/4

3:14 pm-11:53 pm

1 stop8h 39m

$529

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 6/16

8:18 am-2:15 pm

2 stops29h 57m

Castries Hewanorra

Fri 6/27

3:10 pm-1:42 pm

1 stop22h 32m

$543

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Wed 6/11

6:09 am-1:49 pm

1 stop7h 40m

Castries Hewanorra

Sat 6/14

2:03 pm-10:59 pm

1 stop8h 56m

$557

Washington, D.C.Castries

DCA - UVF

DCAUVF

Washington, D.C. Reagan-National

Wed 5/28

5:00 am-2:11 pm

1 stop9h 11m

Castries Hewanorra

Wed 6/4

3:14 pm-11:59 pm

1 stop8h 45m

$567

BaltimoreCastries

BWI - UVF

BWIUVF

Baltimore/Washington

Wed 9/3

7:00 am-2:15 pm

1 stop7h 15m

Castries Hewanorra

Tue 9/9

3:38 pm-12:12 am

1 stop8h 34m

$567

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Wed 5/28

5:02 am-2:11 pm

1 stop9h 09m

Castries Hewanorra

Wed 6/4

3:14 pm-8:38 am

1 stop17h 24m

$567

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Fri 6/6

3:13 pm-1:45 pm

3 stops46h 32m

Castries Hewanorra

Fri 6/13

3:10 pm-9:41 am

1 stop18h 31m

$708

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 25 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 April 22, 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 April 22, 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
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

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
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

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
8,683 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

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
2,923 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

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
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

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
2,813 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

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 $169. Users have also found prices from $447 and $512 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

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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 April 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$313Average$709FlexibilityNo cancel feeOn-time62%
DeltaCheapest$391Average$755FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$535Average$747FlexibilityNo cancel feeOn-time71%

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