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Saint Lucia

$372+ 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 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — UVF
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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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 November 13, 2025.

This American Airlines deal was found by Cheapflights users on 11/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/298:17 pmIAD - UVF
2 stops18h 35mAmerican Airlines
Sat 12/63:16 pmUVF - IAD
2 stops23h 04mAmerican Airlines
Deal found 11/13$452
This Delta deal was found by Cheapflights users on 11/11. 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.
Fri 11/146:00 amIAD - UVF
1 stop8h 39mDelta
Mon 11/174:59 pmUVF - IAD
1 stop8h 17mDelta
Deal found 11/11$485
This Air Canada deal was found by Cheapflights users on 11/12. 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.
Tue 12/24:30 pmIAD - UVF
1 stop22h 50mAir Canada
Wed 12/105:15 pmUVF - IAD
1 stop23h 31mAir Canada
Deal found 11/12$494
This American Airlines deal was found by Cheapflights users on 11/12. 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 12/294:29 pmIAD - UVF
2 stops19h 35mAmerican Airlines
Thu 1/84:06 pmUVF - IAD
1 stop8h 06mAmerican Airlines
Deal found 11/12$584
This Delta deal was found by Cheapflights users on 11/11. 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.
Tue 11/186:00 amIAD - UVF
1 stop8h 39mDelta
Fri 11/214:59 pmUVF - IAD
1 stop8h 17mDelta
Deal found 11/11$591
This American Airlines deal was found by Cheapflights users on 11/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/185:29 pmIAD - UVF
2 stops21h 23mAmerican Airlines
Fri 11/214:04 pmUVF - IAD
1 stop8h 55mAmerican Airlines
Deal found 11/11$596
This Mytrip deal was found by Cheapflights users on 11/12. 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.
Sat 12/139:45 amIAD - SLU
2 stops32h 15mMultiple Airlines
Sat 12/2012:35 pmSLU - IAD
3 stops28h 11mMultiple Airlines
Deal found 11/12$1,015
This Mytrip deal was found by Cheapflights users on 11/11. 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.
Thu 12/119:45 amIAD - SLU
3 stops32h 15mMultiple Airlines
Thu 12/1812:35 pmSLU - IAD
2 stops28h 11mMultiple Airlines
Deal found 11/11$1,127
This Mytrip deal was found by Cheapflights users on 11/12. 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.
Thu 11/279:45 amIAD - SLU
3 stops28h 30mMultiple Airlines
Wed 12/310:15 amSLU - IAD
2 stops35h 11mMultiple Airlines
Deal found 11/12$1,140
This Mytrip deal was found by Cheapflights users on 11/11. 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.
Wed 11/2612:42 pmIAD - SLU
3 stops23h 28mMultiple Airlines
Sun 11/305:00 amSLU - IAD
2 stops17h 05mMultiple Airlines
Deal found 11/11$1,358
This Mytrip deal was found by Cheapflights users on 11/11. 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.
Sat 12/275:10 pmIAD - SLU
3 stops24h 50mMultiple Airlines
Sat 1/33:45 pmSLU - IAD
3 stops22h 30mMultiple Airlines
Deal found 11/11$2,683

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 November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$407
(American Airlines)

One-way from

$372
(American Airlines)

Popular in

November

Cheapest in

October

Average price

$1,756
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. Dulles Intl to Saint Lucia
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Saint Lucia
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($356 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($84 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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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 November 13, 2025.
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

Sun 2/8

7:04 am-3:03 pm

1 stop6h 59m

Castries Hewanorra

Thu 2/12

4:24 pm-11:59 pm

1 stop8h 35m

$407

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Fri 1/30

7:01 am-3:03 pm

1 stop7h 02m

Castries Hewanorra

Sun 2/8

5:02 pm-10:58 am

2 stops18h 56m

$473

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Wed 1/28

1:08 pm-1:46 pm

2 stops23h 38m

Castries Hewanorra

Sun 2/1

4:06 pm-11:12 pm

1 stop8h 06m

$473

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Thu 1/15

11:34 am-1:46 pm

2 stops25h 12m

Castries Hewanorra

Tue 1/20

5:02 pm-10:58 am

2 stops18h 56m

$490

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Tue 12/2

4:30 pm-4:20 pm

1 stop22h 50m

Castries Hewanorra

Wed 12/10

5:15 pm-3:46 pm

1 stop23h 31m

$494

Washington, D.C.Castries

IAD - SLU

IADSLU

Washington, D.C. Dulles Intl

Sat 12/13

9:45 am-7:00 pm

2 stops32h 15m

Castries George F. L. Charle

Sat 12/20

12:35 pm-3:46 pm

3 stops28h 11m

$1,015

Washington, D.C.Castries

IAD - SLU

IADSLU

Washington, D.C. Dulles Intl

Thu 12/11

9:45 am-7:00 pm

3 stops32h 15m

Castries George F. L. Charle

Thu 12/18

12:35 pm-3:46 pm

2 stops28h 11m

$1,127

Washington, D.C.Castries

IAD - SLU

IADSLU

Washington, D.C. Dulles Intl

Thu 11/27

9:45 am-3:15 pm

3 stops28h 30m

Castries George F. L. Charle

Wed 12/3

10:15 am-8:26 pm

2 stops35h 11m

$1,140

Washington, D.C.Castries

IAD - SLU

IADSLU

Washington, D.C. Dulles Intl

Wed 11/26

12:42 pm-1:10 pm

3 stops23h 28m

Castries George F. L. Charle

Sun 11/30

5:00 am-9:05 pm

2 stops17h 05m

$1,358

Washington, D.C.Castries

IAD - SLU

IADSLU

Washington, D.C. Dulles Intl

Fri 1/9

4:30 pm-12:05 pm

3 stops18h 35m

Castries George F. L. Charle

Tue 1/13

12:35 pm-11:35 am

3 stops24h 00m

$1,559

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 28 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 time of day to fly from IAD to LC?

Find hourly flight availability from Dulles Intl 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 November 13, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Saint Lucia, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 39% versus a flight in the evening.

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 November 13, 2025.
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
8,007 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

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
8,007 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

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
11,051 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

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 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 American Airlines fly from Washington, D.C. Dulles Intl Airport to Saint Lucia in about 6h 59m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 2011 mi.

  • 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.

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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$461Average$847FlexibilityNo cancel feeOn-time71%
DeltaCheapest$495Average$985FlexibilityNo cancel feeOn-timeN/A

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