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Saint Lucia

$168+ 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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — UVF
may. 27 — jun. 31
mié. 5/27
mié. 6/3
1 adult, Economy
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Cheap 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 abril 27, 2026.

This Orbitz deal was found by Cheapflights users on 4/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/43:45 pm
IAD
-
UVF
2 stops22h 25m
Air Canada
mar. 6/93:05 pm
UVF
-
IAD
1 stop29h 24m
Air Canada
Deal found 4/27$426
This Air Canada deal was found by Cheapflights users on 4/23. 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.
mié. 5/2710:10 pm
IAD
-
UVF
2 stops39h 55m
Air Canada
mar. 6/23:05 pm
UVF
-
IAD
2 stops30h 08m
Air Canada
Deal found 4/23$457
This Air Canada deal was found by Cheapflights users on 4/23. 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.
lun. 8/319:55 am
IAD
-
UVF
1 stop28h 25m
Air Canada
mar. 9/83:15 pm
UVF
-
IAD
2 stops16h 28m
Air Canada
Deal found 4/23$496
This Air Canada deal was found by Cheapflights users on 4/27. 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.
lun. 8/244:20 pm
IAD
-
UVF
1 stop22h 00m
Air Canada
vie. 8/283:15 pm
UVF
-
IAD
1 stop24h 09m
Air Canada
Deal found 4/27$513
This FlightHub deal was found by Cheapflights users on 4/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/89:55 am
IAD
-
UVF
1 stop28h 20m
Air Canada
mar. 10/133:15 pm
UVF
-
IAD
1 stop29h 10m
Air Canada
Deal found 4/23$514
This Gotogate deal was found by Cheapflights users on 4/23. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/24:00 pm
IAD
-
SLU
2 stops27h 00m
Multiple Airlines
dom. 10/412:35 pm
SLU
-
IAD
2 stops31h 50m
Multiple Airlines
Deal found 4/23$999
This Mytrip deal was found by Cheapflights users on 4/27. 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.
sáb. 6/69:55 am
IAD
-
SLU
2 stops33h 05m
Multiple Airlines
lun. 6/87:10 pm
SLU
-
IAD
2 stops20h 19m
Multiple Airlines
Deal found 4/27$1,007
This Mytrip deal was found by Cheapflights users on 4/27. 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.
mar. 5/199:45 am
IAD
-
SLU
3 stops33h 15m
Multiple Airlines
mar. 5/2612:35 pm
SLU
-
IAD
2 stops31h 54m
Multiple Airlines
Deal found 4/27$1,021
This Gotogate deal was found by Cheapflights users on 4/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/234:05 pm
IAD
-
SLU
2 stops26h 55m
Multiple Airlines
lun. 5/2512:35 pm
SLU
-
IAD
2 stops31h 54m
Multiple Airlines
Deal found 4/26$1,028
This Mytrip deal was found by Cheapflights users on 4/24. 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.
dom. 5/249:55 am
IAD
-
SLU
2 stops32h 30m
Multiple Airlines
jue. 5/289:50 am
SLU
-
IAD
2 stops34h 39m
Multiple Airlines
Deal found 4/24$1,032
This Gotogate deal was found by Cheapflights users on 4/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/234:05 pm
IAD
-
SLU
2 stops26h 55m
Multiple Airlines
mié. 5/2712:35 pm
SLU
-
IAD
2 stops31h 54m
Multiple Airlines
Deal found 4/27$1,037
This Gotogate deal was found by Cheapflights users on 4/25. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/129:55 am
IAD
-
SLU
2 stops33h 05m
Multiple Airlines
sáb. 5/163:45 pm
SLU
-
IAD
2 stops47h 44m
Multiple Airlines
Deal found 4/25$1,044

Find 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 abril 27, 2026.

Round-trip from

$427
(Air Canada)

One-way from

$168
(Air Canada)

Popular in

November

Cheapest in

December

Average price

$736
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. 8% potential increase in price ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease ($90 potential savings vs. average RT price).
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Average for round-trip flights in April 2026
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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 abril 27, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

jue. 8/27

6:00 am-2:08 pm

1 stop8h 08m

Castries Hewanorra

mié. 9/2

3:28 pm-12:10 am

1 stop8h 42m

$661

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

jue. 7/16

3:45 pm-2:20 pm

2 stops22h 35m

Castries Hewanorra

mar. 7/21

3:05 pm-11:43 am

2 stops20h 38m

$707
Quickest round-trip

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

mar. 9/22

7:00 am-2:23 pm

1 stop7h 23m

Castries Hewanorra

mar. 9/29

3:38 pm-12:10 am

1 stop8h 32m

$736

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

mar. 6/16

6:00 am-2:13 pm

1 stop8h 13m

Castries Hewanorra

mié. 7/8

3:33 pm-12:41 am

1 stop9h 08m

$836

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

mié. 5/27

6:08 am-2:05 pm

1 stop7h 57m

Castries Hewanorra

mar. 6/2

3:25 pm-12:51 am

1 stop9h 26m

$866

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

jue. 9/10

6:00 am-2:23 pm

1 stop8h 23m

Castries Hewanorra

lun. 9/14

3:38 pm-9:10 am

1 stop17h 32m

$967

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

sáb. 6/20

6:10 am-3:31 pm

1 stop9h 21m

Castries Hewanorra

sáb. 6/27

12:55 pm-12:45 am

1 stop11h 50m

$982

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

mié. 9/9

6:00 am-2:08 pm

1 stop8h 08m

Castries Hewanorra

lun. 9/14

3:38 pm-12:10 am

1 stop8h 32m

$982

Washington, D.C.Castries

IAD - UVF

IADUVF

Washington, D.C. Dulles Intl

mié. 7/29

6:00 am-2:12 pm

1 stop8h 12m

Castries Hewanorra

mié. 8/5

3:33 pm-12:41 am

1 stop9h 08m

$996

Washington, D.C.Castries

IAD - SLU

IADSLU

Washington, D.C. Dulles Intl

vie. 10/2

4:00 pm-7:00 pm

2 stops27h 00m

Castries George F. L. Charle

dom. 10/4

12:35 pm-8:25 pm

2 stops31h 50m

$1,007

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 25 resultsSorted by cheapest first
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3

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, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Saint Lucia (average of $342). Flying from Washington, D.C. Dulles Intl Airport to Saint Lucia in June is currently the most expensive (average of $1,475). 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 abril 27, 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
8,463 reviews

Overall

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Comfort

7.9

Food

7.2

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
8,463 reviews
Delta
7.9
Good
8,463 reviews

Overall

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Comfort

7.9

Food

7.2

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
7.1
Good
11,668 reviews
Delta
7.9
Good
8,463 reviews

Overall

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Comfort

7.9

Food

7.2

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 18m. The time it takes to get you to your destination can typically vary by up to 1h 47m. 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, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Saint Lucia (average of $342). Flying from Washington, D.C. Dulles Intl Airport to Saint Lucia in June is currently the most expensive (average of $1,475). 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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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 abril 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$351Average$776FlexibilityNo cancel feeOn-time71%
DeltaCheapest$452Average$920FlexibilityNo cancel feeOn-timeN/A

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