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Saint Lucia

$506+ Cheap flights from Washington to Saint Lucia

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — UVF
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Find flight deals from Washington to Saint Lucia

Cheapest flights from Washington to Saint Lucia
Explore the most affordable flight options available from Washington to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2025.

This Air Canada deal was found by Cheapflights users on 10/19. 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 12/15:45 amSEA - UVF
2 stops54h 40mAir Canada
Wed 12/105:15 pmUVF - SEA
1 stop33h 01mAir Canada
Deal found 10/19$637
This Booking.com deal was found by Cheapflights users on 10/18. 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.
Wed 12/38:00 pmSEA - UVF
2 stops40h 25mAir Canada
Wed 12/105:15 pmUVF - SEA
1 stop33h 01mAir Canada
Deal found 10/18$835
This American Airlines deal was found by Cheapflights users on 10/19. 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 10/303:19 pmPDX - UVF
2 stops19h 37mAmerican Airlines
Tue 11/44:52 pmUVF - PDX
2 stops22h 17mAmerican Airlines
Deal found 10/19$972
This Mytrip deal was found by Cheapflights users on 10/18. 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 12/310:05 amSEA - UVF
3 stops24h 45mMultiple Airlines
Wed 12/105:15 pmUVF - SEA
2 stops25h 05mMultiple Airlines
Deal found 10/18$992
This Delta deal was found by Cheapflights users on 10/19. 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 11/710:10 pmPDX - UVF
1 stop13h 11mDelta
Sat 11/154:59 pmUVF - PDX
2 stops20h 41mDelta
Deal found 10/19$1,047
This Delta deal was found by Cheapflights users on 10/18. 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 12/33:47 pmSEA - UVF
1 stop19h 49mDelta
Wed 12/104:56 pmUVF - SEA
1 stop21h 23mDelta
Deal found 10/18$1,063
This American Airlines deal was found by Cheapflights users on 10/19. 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 12/125:59 pmPDX - UVF
2 stops15h 20mAmerican Airlines
Thu 12/184:54 pmUVF - PDX
2 stops21h 47mAmerican Airlines
Deal found 10/19$1,082
This Delta deal was found by Cheapflights users on 10/18. 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 12/28:10 pmPDX - UVF
2 stops15h 26mDelta
Tue 12/94:56 pmUVF - PDX
1 stop21h 48mDelta
Deal found 10/18$1,117
This United Airlines deal was found by Cheapflights users on 10/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/711:59 pmPDX - UVF
1 stop12h 26mUnited Airlines
Sat 11/151:52 pmUVF - PDX
1 stop12h 41mUnited Airlines
Deal found 10/19$1,134
This Delta deal was found by Cheapflights users on 10/18. 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.
Thu 11/610:10 pmPDX - UVF
1 stop13h 16mDelta
Mon 11/104:59 pmUVF - PDX
1 stop21h 44mDelta
Deal found 10/18$1,137
This American Airlines deal was found by Cheapflights users on 10/20. 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 11/610:15 pmPDX - UVF
1 stop12h 49mAmerican Airlines
Mon 11/104:52 pmUVF - PDX
2 stops22h 17mAmerican Airlines
Deal found 10/20$1,140
This Delta deal was found by Cheapflights users on 10/19. 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 12/13:42 pmSEA - UVF
1 stop19h 54mDelta
Wed 12/104:56 pmUVF - SEA
1 stop21h 23mDelta
Deal found 10/19$1,153

Cheap flight deals from Washington to Saint Lucia

Keep the following information in mind while searching for Washington to Saint Lucia flight deals. Data was last updated October 20, 2025.

Round-trip from

$501
(American Airlines)
From Washington to Saint Lucia
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 20, 2025.
Use the filters below to find and compare flights from Washington to Saint Lucia that are best for you.

Fly from

Washington

Fly to

Saint Lucia

Route

Depart

Return

Price

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Sun 1/18

9:45 pm-4:02 pm

2 stops14h 17m

Castries Hewanorra

Thu 1/29

2:56 pm-11:42 pm

1 stop12h 46m

$506

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Sun 1/4

10:06 pm-3:54 pm

1 stop13h 48m

Castries Hewanorra

Fri 1/9

2:56 pm-11:42 pm

1 stop12h 46m

$622

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Mon 12/1

8:00 pm-4:25 pm

2 stops40h 25m

Castries Hewanorra

Wed 12/10

5:15 pm-10:16 pm

1 stop33h 01m

$637

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Tue 3/31

11:31 am-1:30 pm

2 stops22h 59m

Castries Hewanorra

Thu 4/2

3:50 pm-10:59 pm

2 stops34h 09m

$637

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Mon 1/5

3:20 pm-3:04 pm

1 stop19h 44m

Castries Hewanorra

Thu 1/8

4:24 pm-10:29 am

1 stop22h 05m

$642

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Mon 1/5

3:20 pm-3:04 pm

1 stop19h 44m

Castries Hewanorra

Mon 1/12

4:24 pm-10:29 am

1 stop22h 05m

$648

SpokaneCastries

GEG - UVF

GEGUVF

Spokane

Sun 3/1

6:30 am-3:04 pm

2 stops28h 34m

Castries Hewanorra

Wed 3/4

4:24 pm-1:00 pm

2 stops24h 36m

$724

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Sun 1/4

3:47 pm-3:07 pm

1 stop19h 20m

Castries Hewanorra

Thu 1/8

4:24 pm-10:29 am

1 stop22h 05m

$753

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Sun 1/4

3:47 pm-3:07 pm

1 stop19h 20m

Castries Hewanorra

Mon 1/12

4:24 pm-10:29 am

1 stop22h 05m

$756

PortlandCastries

PDX - UVF

PDXUVF

Portland

Tue 3/10

6:42 pm-1:30 pm

2 stops15h 48m

Castries Hewanorra

Thu 3/12

2:20 pm-12:07 pm

2 stops24h 47m

$812

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/19

Showing 1-10 of 17 results
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Best time to book a flight from Washington to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Washington 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 to Saint Lucia

What is the cheapest month to book a flight from State of Washington to Saint Lucia?

Currently, January is the cheapest month in which you can book a flight from State of Washington to Saint Lucia (average of $434). Flying from State of Washington to Saint Lucia in June is currently the most expensive (average of $1,408). 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 WA to LC?

Find hourly flight availability from Washington 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 20, 2025.

One of the essential ways to save on airfare from State of Washington to Saint Lucia is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 54% on airfare.

Related info for your journey

Find useful and relevant information for your journey from Washington 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 State of Washington to Saint Lucia?

    Departing from State of Washington to Saint Lucia will take you 14h 17m. The distance between State of Washington and Saint Lucia is about 4189 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

  • How can I find direct flights from Washington 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 to Saint Lucia.

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Saint Lucia?

    Currently, January is the cheapest month in which you can book a flight from State of Washington to Saint Lucia (average of $434). Flying from State of Washington to Saint Lucia in June is currently the most expensive (average of $1,408). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington to Saint Lucia

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Washington to Saint Lucia

Discover the top airline that operate flights from Washington 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 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$668Average$901FlexibilityNo cancel feeOn-time71%

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