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Saint Lucia

$332+ Cheap flights from Seattle (SEA) 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — UVF
Jan 30 — Feb 61
Fri 1/30
Fri 2/6
1 adult, Economy
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Cheap 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 December 31, 2025.

This Mytrip deal was found by Cheapflights users on 12/30. 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 12/3110:05 amSEA - SLU
3 stops28h 55mMultiple Airlines
Wed 1/712:35 pmSLU - SEA
3 stops37h 41mMultiple Airlines
Deal found 12/30$1,267
This American Airlines deal was found by Cheapflights users on 12/30. 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.
Wed 12/3110:13 pmSEA - UVF
2 stops13h 41mAmerican Airlines
Wed 1/75:02 pmUVF - SEA
2 stops20h 35mAmerican Airlines
Deal found 12/30$1,302
This American Airlines deal was found by Cheapflights users on 12/29. 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.
Tue 12/3010:06 pmSEA - UVF
1 stop10h 58mAmerican Airlines
Thu 1/84:06 pmUVF - SEA
2 stops22h 55mAmerican Airlines
Deal found 12/29$2,125
This American Airlines deal was found by Cheapflights users on 12/29. 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.
Tue 12/3010:06 pmSEA - UVF
1 stop10h 58mAmerican Airlines
Wed 1/75:02 pmUVF - SEA
2 stops21h 59mAmerican Airlines
Deal found 12/29$2,340
This Orbitz deal was found by Cheapflights users on 12/29. 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.
Tue 12/308:10 amSEA - UVF
1 stop28h 10mAir Canada
Wed 1/75:15 pmUVF - SEA
1 stop33h 01mAir Canada
Deal found 12/29$6,094

Find 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 December 31, 2025.

Round-trip from

$491
(Delta)

One-way from

$332
(Kiwi.com)
From Seattle/Tacoma Intl to Saint Lucia
Search Deals
One-way flight from Seattle/Tacoma Intl to Saint Lucia
Search Deals

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 December 31, 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

Thu 2/5

4:05 pm-3:05 pm

1 stop19h 00m

Castries Hewanorra

Thu 2/12

4:25 pm-10:07 am

1 stop21h 42m

$491

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Thu 3/5

10:08 pm-3:18 pm

1 stop13h 10m

Castries Hewanorra

Mon 3/16

3:18 pm-11:27 am

1 stop23h 09m

$491

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Wed 2/4

4:05 pm-3:05 pm

1 stop19h 00m

Castries Hewanorra

Mon 2/9

4:25 pm-10:07 am

1 stop21h 42m

$491

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Thu 2/5

4:05 pm-3:05 pm

1 stop19h 00m

Castries Hewanorra

Mon 2/9

4:25 pm-10:07 am

1 stop21h 42m

$491

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Thu 1/29

9:45 pm-3:03 pm

1 stop13h 18m

Castries Hewanorra

Thu 2/5

4:06 pm-9:37 am

2 stops21h 31m

$496

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Sun 1/18

8:00 pm-4:25 pm

2 stops16h 25m

Castries Hewanorra

Thu 1/29

5:15 pm-2:31 pm

2 stops25h 16m

$592

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Wed 2/4

4:05 pm-3:05 pm

1 stop19h 00m

Castries Hewanorra

Sun 2/8

4:25 pm-10:07 am

1 stop21h 42m

$602

SeattleCastries

SEA - SLU

SEASLU

Seattle/Tacoma Intl

Fri 5/8

11:15 am-1:10 pm

2 stops22h 55m

Castries George F. L. Charle

Wed 5/13

10:15 am-10:20 am

2 stops27h 05m

$4,011

SeattleCastries

SEA - SLU

SEASLU

Seattle/Tacoma Intl

Sun 6/28

11:59 pm-6:35 pm

3 stops15h 36m

Castries George F. L. Charle

Fri 7/10

12:15 pm-10:32 am

2 stops25h 17m

$4,522

SeattleCastries

SEA - SLU

SEASLU

Seattle/Tacoma Intl

Sat 2/28

10:53 am-3:15 pm

2 stops24h 22m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

Showing 1-10 of 25 results
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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 $530). Flying from Seattle to Saint Lucia in June is currently the most expensive (average of $1,489). 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 December 31, 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
11,074 reviews

Entertainment

6.9

Crew

8.0

Overall

7.2

Boarding

7.5

Food

6.4

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
American Airlines
7.2
Good
11,074 reviews
American Airlines
7.2
Good
11,074 reviews

Entertainment

6.9

Crew

8.0

Overall

7.2

Boarding

7.5

Food

6.4

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

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 13h 10m. Fly via Delta or American Airlines 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.

  • 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 $530). Flying from Seattle to Saint Lucia in June is currently the most expensive (average of $1,489). 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 December 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$613Average$839FlexibilityNo cancel feeOn-time71%

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