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Saint Lucia

$659+ 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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — UVF
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 junio 12, 2025.

Round-trip from

$659
(FlightHub)
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 junio 12, 2025.

This FlightHub deal was found by Cheapflights users on 6/10. 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.
vie. 8/87:35 pmSEA - UVF
2 stops39h 10mMultiple Airlines
mar. 8/123:10 pmUVF - SEA
2 stops21h 11mMultiple Airlines
Deal found 6/10$659
This Booking.com deal was found by Cheapflights users on 6/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/17:30 amSEA - UVF
1 stop28h 30mAir Canada
mié. 12/105:05 pmUVF - SEA
1 stop32h 51mAir Canada
Deal found 6/11$662
This American Airlines deal was found by Cheapflights users on 6/11. 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.
lun. 12/111:10 pmSEA - UVF
1 stop11h 50mAmerican Airlines
mié. 12/103:05 pmUVF - SEA
1 stop12h 17mAmerican Airlines
Deal found 6/11$743
This Mytrip deal was found by Cheapflights users on 6/10. 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. 7/2511:59 pmSEA - SLU
3 stops19h 11mMultiple Airlines
vie. 8/19:10 amSLU - SEA
3 stops37h 04mMultiple Airlines
Deal found 6/10$1,315
This WestJet deal was found by Cheapflights users on 6/12. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/213:20 pmSEA - UVF
2 stops43h 28mWestJet
mar. 1/63:40 pmUVF - SEA
2 stops26h 58mWestJet
Deal found 6/12$1,656
This Delta deal was found by Cheapflights users on 6/10. 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.
lun. 12/226:15 amSEA - UVF
1 stop28h 52mDelta
dom. 12/284:32 pmUVF - SEA
1 stop22h 02mDelta
Deal found 6/10$1,801

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 junio 12, 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

vie. 8/8

7:35 pm-1:45 pm

2 stops39h 10m

Castries Hewanorra

mar. 8/12

3:10 pm-9:21 am

2 stops21h 11m

$659

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

lun. 12/1

7:30 am-4:00 pm

1 stop28h 30m

Castries Hewanorra

mié. 12/10

5:05 pm-9:56 pm

1 stop32h 51m

$662

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

lun. 12/1

11:10 pm-3:00 pm

1 stop11h 50m

Castries Hewanorra

mié. 12/10

3:05 pm-11:22 pm

1 stop12h 17m

$743

SeattleCastries

SEA - SLU

SEASLU

Seattle/Tacoma Intl

vie. 7/25

11:59 pm-10:10 pm

3 stops19h 11m

Castries George F. L. Charle

vie. 8/1

9:10 am-7:14 pm

3 stops37h 04m

$1,315

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 junio 12, 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 junio 12, 2025.
American Airlines
7.2
Good
10,000 reviews

Food

6.5

Overall

7.2

Comfort

7.2

Entertainment

6.9

Boarding

7.5

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Food

6.5

Overall

7.2

Comfort

7.2

Entertainment

6.9

Boarding

7.5

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.
Air Canada
7.1
Good
9,531 reviews
American Airlines
7.2
Good
10,000 reviews

Food

6.5

Overall

7.2

Comfort

7.2

Entertainment

6.9

Boarding

7.5

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.

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.

  • 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$541Average$799FlexibilityNo cancel feeOn-time71%

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