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Saint Lucia

$336+ 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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — UVF
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 October 30, 2025.

This Air Canada deal was found by Cheapflights users on 10/27. 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.
Sun 11/910:12 pmIAD - UVF
2 stops17h 13mAir Canada
Fri 11/215:15 pmUVF - IAD
1 stop29h 05mAir Canada
Deal found 10/27$454
This Air Canada deal was found by Cheapflights users on 10/29. 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.
Sun 11/910:12 pmIAD - UVF
2 stops17h 13mAir Canada
Fri 11/145:15 pmUVF - IAD
1 stop23h 31mAir Canada
Deal found 10/29$457
This American Airlines deal was found by Cheapflights users on 10/29. 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 11/288:09 pmIAD - UVF
1 stop17h 45mAmerican Airlines
Fri 12/54:00 pmUVF - IAD
1 stop8h 08mAmerican Airlines
Deal found 10/29$463
This Priceline deal was found by Cheapflights users on 10/27. 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.
Sat 11/89:45 amIAD - UVF
2 stops29h 40mAir Canada
Fri 11/145:15 pmUVF - IAD
1 stop29h 05mAir Canada
Deal found 10/27$464
This American Airlines deal was found by Cheapflights users on 10/28. 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 11/276:34 amIAD - UVF
2 stops29h 45mAmerican Airlines
Thu 12/42:23 pmUVF - IAD
2 stops10h 38mAmerican Airlines
Deal found 10/28$468
This Air Canada deal was found by Cheapflights users on 10/29. 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 10/29$474
This Air Canada deal was found by Cheapflights users on 10/28. 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 12/305:10 pmIAD - UVF
2 stops22h 10mAir Canada
Fri 1/95:15 pmUVF - IAD
2 stops24h 09mAir Canada
Deal found 10/28$480
This Mytrip deal was found by Cheapflights users on 10/30. 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.
Sun 11/169:45 amIAD - SLU
3 stops30h 45mMultiple Airlines
Wed 11/199:10 amSLU - IAD
2 stops31h 36mMultiple Airlines
Deal found 10/30$836
This Mytrip deal was found by Cheapflights users on 10/29. 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 11/59:45 amIAD - SLU
3 stops32h 15mMultiple Airlines
Sun 11/912:10 pmSLU - IAD
3 stops28h 36mMultiple Airlines
Deal found 10/29$837
This Mytrip deal was found by Cheapflights users on 10/27. 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 11/109:45 amIAD - SLU
3 stops32h 15mMultiple Airlines
Mon 11/1712:35 pmSLU - IAD
2 stops28h 11mMultiple Airlines
Deal found 10/27$850
This Mytrip deal was found by Cheapflights users on 10/30. 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 11/179:45 amIAD - SLU
3 stops32h 15mMultiple Airlines
Wed 11/199:10 amSLU - IAD
2 stops31h 36mMultiple Airlines
Deal found 10/30$861
This Mytrip deal was found by Cheapflights users on 10/29. 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 11/284:30 pmIAD - SLU
3 stops28h 40mMultiple Airlines
Fri 12/51:55 pmSLU - IAD
3 stops32h 04mMultiple Airlines
Deal found 10/29$863

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$455
(Air Canada)

One-way from

$336
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$601
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. 5% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 30, 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

Fri 11/28

6:44 am-3:00 pm

1 stop7h 16m

Castries Hewanorra

Fri 12/5

4:00 pm-8:44 am

1 stop17h 44m

$463

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 2/2

6:00 am-3:05 pm

1 stop8h 05m

Castries Hewanorra

Tue 2/3

4:25 pm-12:24 am

1 stop8h 59m

$463

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 3/23

6:00 am-2:04 pm

1 stop8h 04m

Castries Hewanorra

Tue 3/31

3:24 pm-12:07 am

1 stop8h 43m

$463

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 3/2

7:50 pm-3:04 pm

1 stop18h 14m

Castries Hewanorra

Wed 3/4

4:24 pm-12:07 am

1 stop8h 43m

$463

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Sun 3/1

7:50 pm-3:04 pm

1 stop18h 14m

Castries Hewanorra

Tue 3/10

3:24 pm-12:07 am

1 stop8h 43m

$463

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Mon 3/23

5:43 pm-1:30 pm

2 stops19h 47m

Castries Hewanorra

Tue 3/31

2:20 pm-12:38 pm

2 stops22h 18m

$468

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

Thu 1/29

5:46 pm-1:46 pm

2 stops19h 00m

Castries Hewanorra

Sun 2/1

2:46 pm-10:58 am

2 stops21h 12m

$473

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

$474

Washington, D.C.Castries

IAD - SLU

IADSLU

Washington, D.C. Dulles Intl

Wed 11/5

9:45 am-7:00 pm

3 stops32h 15m

Castries George F. L. Charle

Sun 11/9

12:10 pm-3:46 pm

3 stops28h 36m

$836

Washington, D.C.Castries

IAD - SLU

IADSLU

Washington, D.C. Dulles Intl

Sun 11/16

9:00 am-5:30 pm

2 stops31h 30m

Castries George F. L. Charle

Wed 11/19

9:10 am-3:46 pm

2 stops31h 36m

$836

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 24 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 October 30, 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 October 30, 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
7,998 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,035 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 and Delta fly from Washington, D.C. Dulles Intl Airport to Saint Lucia in about 7h 16m. The time it takes to get you to your destination can typically vary by up to 49m. 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.

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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$461Average$847FlexibilityNo cancel feeOn-time71%
DeltaCheapest$495Average$985FlexibilityNo cancel feeOn-timeN/A

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