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Saint Lucia

$124+ Cheap flights from Dulles Intl (IAD) 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — UVF
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
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Cheap flight deals from Dulles Intl to Saint Lucia

Keep the following information in mind while searching for Dulles Intl to Saint Lucia flight deals. Data was last updated January 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$348
(Delta)

One-way from

$124
(American Airlines)

Popular in

November

Cheapest in

December

Average price

$647
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. Dulles Intl to Saint Lucia
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One-way flight from Washington, D.C. Dulles Intl to Saint Lucia
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Highest demand for flights based on searches. 12% potential increase in price ($112 potential increase over avg. RT price).
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Cheapest flight prices on average. 12% potential price decrease ($94 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Dulles Intl to Saint Lucia

Cheapest flights from Dulles Intl to Saint Lucia
Explore the most affordable flight options available from Dulles Intl to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.

This Delta deal was found by Cheapflights users on 1/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:35 pm
IAD
-
UVF
1 stop18h 30m
Delta
Wed 3/113:18 pm
UVF
-
IAD
1 stop9h 13m
Delta
Deal found 1/11$348
This American Airlines deal was found by Cheapflights users on 1/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/297:01 am
IAD
-
UVF
1 stop7h 02m
American Airlines
Thu 2/55:02 pm
UVF
-
IAD
2 stops20h 34m
American Airlines
Deal found 1/12$353
This American Airlines deal was found by Cheapflights users on 1/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/215:46 pm
IAD
-
UVF
1 stop20h 17m
American Airlines
Wed 1/284:06 pm
UVF
-
IAD
1 stop8h 06m
American Airlines
Deal found 1/12$355
This Delta deal was found by Cheapflights users on 1/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/256:00 am
IAD
-
UVF
1 stop8h 05m
Delta
Thu 2/54:25 pm
UVF
-
IAD
1 stop8h 59m
Delta
Deal found 1/12$358
This American Airlines deal was found by Cheapflights users on 1/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/51:08 pm
IAD
-
UVF
1 stop24h 55m
American Airlines
Mon 2/95:02 pm
UVF
-
IAD
2 stops18h 56m
American Airlines
Deal found 1/12$359
This American Airlines deal was found by Cheapflights users on 1/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:11 pm
IAD
-
UVF
2 stops17h 24m
American Airlines
Thu 5/72:35 pm
UVF
-
IAD
2 stops33h 24m
American Airlines
Deal found 1/12$366
This Delta deal was found by Cheapflights users on 1/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/86:00 am
IAD
-
UVF
1 stop8h 05m
Delta
Wed 2/114:25 pm
UVF
-
IAD
1 stop8h 59m
Delta
Deal found 1/12$368
This American Airlines deal was found by Cheapflights users on 1/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/22:03 pm
IAD
-
UVF
2 stops24h 55m
American Airlines
Thu 3/122:48 pm
UVF
-
IAD
2 stops18h 00m
American Airlines
Deal found 1/12$373
This American Airlines deal was found by Cheapflights users on 1/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/108:11 pm
IAD
-
UVF
2 stops17h 24m
American Airlines
Tue 4/142:35 pm
UVF
-
IAD
2 stops33h 24m
American Airlines
Deal found 1/12$386
This American Airlines deal was found by Cheapflights users on 1/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:11 pm
IAD
-
UVF
2 stops17h 24m
American Airlines
Wed 4/293:28 pm
UVF
-
IAD
1 stop8h 31m
American Airlines
Deal found 1/12$413
This Mytrip deal was found by Cheapflights users on 1/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/304:30 pm
IAD
-
SLU
2 stops26h 30m
Multiple Airlines
Fri 4/36:00 pm
SLU
-
IAD
2 stops21h 39m
Multiple Airlines
Deal found 1/12$870
This Mytrip deal was found by Cheapflights users on 1/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/139:00 am
IAD
-
SLU
2 stops23h 30m
Multiple Airlines
Tue 1/207:30 am
SLU
-
IAD
3 stops33h 16m
Multiple Airlines
Deal found 1/12$942

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 January 14, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Saint Lucia that are best for you.

Fly from

Dulles Intl

Fly to

Saint Lucia

Route

Depart

Return

Price

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 3/2

7:35 pm-3:05 pm

1 stop18h 30m

Castries Hewanorra

Thu 3/12

3:18 pm-12:31 am

1 stop9h 13m

$348

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Tue 3/3

6:00 am-3:05 pm

1 stop8h 05m

Castries Hewanorra

Thu 3/12

3:18 pm-9:10 am

1 stop17h 52m

$348

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Thu 1/29

11:34 am-1:46 pm

2 stops25h 12m

Castries Hewanorra

Thu 2/5

2:46 pm-10:58 am

2 stops21h 12m

$353

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 1/26

7:01 am-3:03 pm

1 stop7h 02m

Castries Hewanorra

Fri 1/30

4:06 pm-11:12 pm

1 stop8h 06m

$368

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Sun 2/8

6:00 am-3:05 pm

1 stop8h 05m

Castries Hewanorra

Wed 2/11

4:25 pm-12:24 am

1 stop8h 59m

$368

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 2/9

6:00 am-3:05 pm

1 stop8h 05m

Castries Hewanorra

Thu 2/12

4:25 pm-12:21 am

1 stop8h 56m

$368

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Tue 3/3

6:00 am-3:05 pm

1 stop8h 05m

Castries Hewanorra

Wed 3/11

3:18 pm-12:31 am

1 stop9h 13m

$368

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Sun 1/25

6:00 am-3:05 pm

1 stop8h 05m

Castries Hewanorra

Thu 2/5

4:25 pm-12:24 am

1 stop8h 59m

$368

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Sun 2/8

5:46 pm-4:02 pm

2 stops21h 16m

Castries Hewanorra

Wed 2/11

5:02 pm-8:30 pm

2 stops28h 28m

$373

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 3/2

4:46 pm-2:48 pm

2 stops21h 02m

Castries Hewanorra

Thu 3/5

4:58 pm-8:30 pm

2 stops28h 32m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Showing 1-10 of 34 results
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Best time to book a flight from Dulles Intl to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Dulles Intl 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. Dulles Intl Airport to Saint Lucia

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Saint Lucia (average of $347). Flying from Washington, D.C. Dulles Intl Airport to Saint Lucia in June is currently the most expensive (average of $1,194). 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 January 14, 2026.
Read reviews from past customers who have flown Delta and American Airlines from Washington, D.C. Dulles Intl Airport to Saint Lucia. 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
7.9
Good
8,040 reviews

Food

7.2

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

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
8,040 reviews
Delta
7.9
Good
8,040 reviews

Food

7.2

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

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
11,118 reviews
Delta
7.9
Good
8,040 reviews

Food

7.2

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

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 Dulles Intl 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. Dulles Intl Airport to Saint Lucia?

    Airlines like Delta and American Airlines fly from Washington, D.C. Dulles Intl Airport to Saint Lucia in about 18h 30m. The time it takes to get you to your destination can typically vary by up to 6h 42m. Airlines will cover a distance of 2011 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Dulles Intl to Saint Lucia that include hotel bookings?

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

  • How can I find direct flights from Dulles Intl to Saint Lucia?

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

  • Can I find deals for business class flights from Dulles Intl to Saint Lucia?

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Saint Lucia?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Saint Lucia (average of $347). Flying from Washington, D.C. Dulles Intl Airport to Saint Lucia in June is currently the most expensive (average of $1,194). 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 Dulles Intl to Saint Lucia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Dulles Intl to Saint Lucia

Discover the top 2 airlines that operate flights from Dulles Intl 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 January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$351Average$772FlexibilityNo cancel feeOn-time71%
DeltaCheapest$452Average$920FlexibilityNo cancel feeOn-timeN/A

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