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Saint Lucia

$497+ Cheap flights from Seattle (SEA) 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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — UVF
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
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Cheap flight deals from Seattle to Saint Lucia

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

Round-trip from

$497
(American Airlines)
From Seattle/Tacoma Intl to Saint Lucia
Search Deals

Find flight deals from Seattle to Saint Lucia

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

This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/510:16 pm
SEA
-
UVF
1 stop12h 32m
American Airlines
Mon 3/163:58 pm
UVF
-
SEA
2 stops22h 29m
American Airlines
Deal found 1/11$497
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/218:10 am
SEA
-
UVF
1 stop28h 15m
Air Canada
Sun 3/294:20 pm
UVF
-
SEA
1 stop32h 31m
Air Canada
Deal found 1/12$592
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/28:00 pm
SEA
-
UVF
2 stops40h 20m
Air Canada
Fri 2/65:15 pm
UVF
-
SEA
2 stops32h 51m
Air Canada
Deal found 1/11$603
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 1/307:52 pm
SEA
-
UVF
2 stops14h 18m
American Airlines
Fri 2/62:46 pm
UVF
-
SEA
2 stops22h 44m
American Airlines
Deal found 1/12$628
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/510:05 am
SEA
-
UVF
2 stops26h 20m
Air Canada
Mon 3/164:15 pm
UVF
-
SEA
2 stops25h 46m
Air Canada
Deal found 1/12$630
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/188:10 am
SEA
-
UVF
1 stop28h 15m
Air Canada
Thu 1/295:15 pm
UVF
-
SEA
1 stop33h 01m
Air Canada
Deal found 1/12$686
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/128:10 am
SEA
-
SLU
2 stops27h 05m
Multiple Airlines
Sat 2/216:20 pm
SLU
-
SEA
2 stops31h 56m
Multiple Airlines
Deal found 1/11$2,254
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/258:10 am
SEA
-
SLU
2 stops51h 05m
Multiple Airlines
Sat 3/76:20 pm
SLU
-
SEA
2 stops30h 56m
Multiple Airlines
Deal found 1/11$3,715

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle 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 Seattle to Saint Lucia that are best for you.

Fly from

Seattle

Fly to

Saint Lucia

Route

Depart

Return

Price

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Thu 3/5

10:16 pm-2:48 pm

1 stop12h 32m

Castries Hewanorra

Mon 3/16

3:58 pm-11:27 am

2 stops22h 29m

$497

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Sat 3/21

8:10 am-3:25 pm

1 stop28h 15m

Castries Hewanorra

Sun 3/29

4:20 pm-9:51 pm

1 stop32h 31m

$592

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Mon 2/2

8:00 pm-4:20 pm

2 stops40h 20m

Castries Hewanorra

Fri 2/6

5:15 pm-10:06 pm

2 stops32h 51m

$603

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Fri 1/30

7:52 pm-2:10 pm

2 stops14h 18m

Castries Hewanorra

Fri 2/6

2:46 pm-9:30 am

2 stops22h 44m

$628

SeattleCastries

SEA - SLU

SEASLU

Seattle/Tacoma Intl

Thu 2/12

8:10 am-3:15 pm

2 stops27h 05m

Castries George F. L. Charle

Sat 2/21

6:20 pm-10:16 pm

2 stops31h 56m

$2,254

SeattleCastries

SEA - SLU

SEASLU

Seattle/Tacoma Intl

Wed 2/25

8:10 am-3:15 pm

2 stops51h 05m

Castries George F. L. Charle

Sat 3/7

6:20 pm-9:16 pm

2 stops30h 56m

$3,715

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/11

Best time to book a flight from Seattle to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from Seattle 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 Seattle to Saint Lucia
No data available for this route at this time. Please check back soon.

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.
See what other customers who have flown with American Airlines from Seattle to Saint Lucia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,119 reviews

Entertainment

6.9

Comfort

7.2

Food

6.4

Boarding

7.5

Overall

7.2

Crew

8.0

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.
American Airlines
7.2
Good
11,119 reviews
American Airlines
7.2
Good
11,119 reviews

Entertainment

6.9

Comfort

7.2

Food

6.4

Boarding

7.5

Overall

7.2

Crew

8.0

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Saint Lucia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Saint Lucia?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl (SEA) is the airport most travelers will use when flying to Saint Lucia from Seattle.

  • How long is the flight from Seattle to Saint Lucia?

    There are many flights that can get you from Seattle to Saint Lucia in 12h 32m. Fly via American Airlines or Air Canada to get the fastest option. There are 4189 mi between Seattle and Saint Lucia. 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 Seattle to Saint Lucia that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle 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 Seattle to Saint Lucia

Discover the top airline that operate flights from Seattle 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$613Average$839FlexibilityNo cancel feeOn-time71%

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