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Saint Lucia

$501+ 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — UVF
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
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 septiembre 15, 2025.

Round-trip from

$501
(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 septiembre 15, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. 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.
jue. 10/308:49 pmSEA - UVF
1 stop15h 11mAmerican Airlines
jue. 11/62:19 pmUVF - SEA
1 stop13h 07mAmerican Airlines
Deal found 9/15$501
This FlightHub deal was found by Cheapflights users on 9/14. 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.
lun. 12/18:00 pmSEA - UVF
2 stops40h 25mAir Canada
mié. 12/105:15 pmUVF - SEA
1 stop33h 01mAir Canada
Deal found 9/14$616
This American Airlines deal was found by Cheapflights users on 9/14. 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.
vie. 10/318:49 pmSEA - UVF
1 stop15h 11mAmerican Airlines
mié. 11/54:52 pmUVF - SEA
2 stops24h 01mAmerican Airlines
Deal found 9/14$638
This Booking.com deal was found by Cheapflights users on 9/14. 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.
vie. 11/148:00 pmSEA - UVF
2 stops40h 25mMultiple Airlines
mar. 11/183:40 pmUVF - SEA
2 stops26h 40mMultiple Airlines
Deal found 9/14$659
This American Airlines deal was found by Cheapflights users on 9/14. 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.
vie. 11/1410:08 pmSEA - UVF
1 stop13h 44mAmerican Airlines
mar. 11/184:52 pmUVF - SEA
2 stops20h 57mAmerican Airlines
Deal found 9/14$759
This Delta deal was found by Cheapflights users on 9/14. 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.
vie. 11/143:40 pmSEA - UVF
1 stop19h 59mDelta
mar. 11/184:59 pmUVF - SEA
1 stop21h 16mDelta
Deal found 9/14$795
This Mytrip deal was found by Cheapflights users on 9/15. 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.
jue. 10/303:10 pmSEA - UVF
3 stops21h 15mMultiple Airlines
jue. 11/63:40 pmUVF - SEA
2 stops21h 51mMultiple Airlines
Deal found 9/15$836
This WestJet deal was found by Cheapflights users on 9/14. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/143:10 pmSEA - UVF
2 stops43h 40mWestJet
mar. 11/183:40 pmUVF - SEA
2 stops50h 40mWestJet
Deal found 9/14$1,070
This Mytrip deal was found by Cheapflights users on 9/14. 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.
vie. 10/318:15 amSEA - SLU
2 stops34h 55mMultiple Airlines
mié. 11/512:35 pmSLU - SEA
3 stops24h 56mMultiple Airlines
Deal found 9/14$1,429

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 septiembre 15, 2025.
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

dom. 1/18

10:57 pm-3:50 pm

1 stop12h 53m

Castries Hewanorra

jue. 1/29

5:10 pm-11:56 am

1 stop22h 46m

$501

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

jue. 10/30

8:49 pm-3:00 pm

1 stop15h 11m

Castries Hewanorra

jue. 11/6

2:19 pm-11:26 pm

1 stop13h 07m

$501

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

dom. 2/1

1:56 pm-2:25 pm

1 stop20h 29m

Castries Hewanorra

sáb. 2/7

4:50 pm-10:41 am

2 stops21h 51m

$506

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

sáb. 2/7

11:35 pm-3:04 pm

1 stop11h 29m

Castries Hewanorra

sáb. 2/14

4:24 pm-10:29 am

1 stop22h 05m

$606

SeattleCastries

SEA - SLU

SEASLU

Seattle/Tacoma Intl

dom. 2/1

1:45 pm-3:50 pm

2 stops22h 05m

Castries George F. L. Charle

sáb. 2/7

6:20 pm-10:19 am

2 stops19h 59m

$924

SeattleCastries

SEA - SLU

SEASLU

Seattle/Tacoma Intl

vie. 10/31

8:15 am-10:10 pm

2 stops34h 55m

Castries George F. L. Charle

mié. 11/5

12:35 pm-9:31 am

3 stops24h 56m

$1,429

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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

What is the cheapest month to book a flight from Seattle to Saint Lucia?

Currently, January is the cheapest month in which you can book a flight from Seattle to Saint Lucia (average of $556). Flying from Seattle to Saint Lucia in December is currently the most expensive (average of $730). 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 SEA to LC?

Find hourly flight availability from Seattle 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 septiembre 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Saint Lucia as you normally would.

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 septiembre 15, 2025.
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
10,000 reviews

Crew

8.0

Overall

7.2

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Crew

8.0

Overall

7.2

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

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 53m. Fly via American Airlines to get the fastest option. There are 4189 mi between Seattle and Saint Lucia.

  • 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.

  • What is the cheapest month to book a flight from Seattle to Saint Lucia?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Saint Lucia (average of $556). Flying from Seattle to Saint Lucia in December is currently the most expensive (average of $730). 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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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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$675Average$855FlexibilityNo cancel feeOn-time71%

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