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Saint Lucia

$200+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — UVF
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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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 October 16, 2025.

This Air Canada deal was found by Cheapflights users on 10/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:00 pmSEA - UVF
2 stops40h 25mAir Canada
Wed 12/105:15 pmUVF - SEA
2 stops44h 16mAir Canada
Deal found 10/14$573
This Booking.com deal was found by Cheapflights users on 10/14. 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.
Tue 12/98:10 amSEA - UVF
1 stop28h 15mAir Canada
Mon 12/155:15 pmUVF - SEA
1 stop33h 01mAir Canada
Deal found 10/14$831
This Mytrip deal was found by Cheapflights users on 10/15. 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.
Wed 12/103:10 pmSEA - UVF
3 stops19h 40mMultiple Airlines
Wed 12/175:15 pmUVF - SEA
2 stops25h 16mMultiple Airlines
Deal found 10/15$884
This American Airlines deal was found by Cheapflights users on 10/15. 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.
Sat 11/2910:07 pmSEA - UVF
1 stop12h 53mAmerican Airlines
Sat 12/64:53 pmUVF - SEA
2 stops20h 49mAmerican Airlines
Deal found 10/15$895
This American Airlines deal was found by Cheapflights users on 10/15. 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.
Wed 12/1010:07 pmSEA - UVF
1 stop12h 55mAmerican Airlines
Wed 12/174:53 pmUVF - SEA
1 stop22h 37mAmerican Airlines
Deal found 10/15$992
This Mytrip deal was found by Cheapflights users on 10/14. 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.
Tue 12/95:50 amSEA - SLU
3 stops23h 40mMultiple Airlines
Mon 12/1512:35 pmSLU - SEA
3 stops29h 56mMultiple Airlines
Deal found 10/14$1,322
This Mytrip deal was found by Cheapflights users on 10/14. 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.
Fri 12/2611:59 pmSEA - SLU
3 stops18h 11mMultiple Airlines
Tue 1/67:30 amSLU - SEA
3 stops30h 01mMultiple Airlines
Deal found 10/14$1,541
This Expedia deal was found by Cheapflights users on 10/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:10 amSEA - SLU
2 stops27h 05mMultiple Airlines
Wed 12/3110:25 amSLU - SEA
2 stops39h 51mMultiple Airlines
Deal found 10/15$4,337

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 October 16, 2025.

Round-trip from

$501
(American Airlines)

One-way from

$200
(Delta)
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 October 16, 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

Sun 1/18

9:45 pm-3:03 pm

1 stop13h 18m

Castries Hewanorra

Thu 1/29

2:56 pm-11:42 pm

1 stop12h 46m

$501

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Tue 3/3

3:20 pm-3:04 pm

1 stop19h 44m

Castries Hewanorra

Wed 3/11

3:24 pm-10:29 am

1 stop22h 05m

$501

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Tue 3/3

3:20 pm-3:04 pm

1 stop19h 44m

Castries Hewanorra

Sat 3/7

4:24 pm-9:29 am

1 stop21h 05m

$501

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Mon 3/2

3:20 pm-3:04 pm

1 stop19h 44m

Castries Hewanorra

Sat 3/7

4:24 pm-9:29 am

1 stop21h 05m

$501

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Wed 3/4

3:20 pm-3:04 pm

1 stop19h 44m

Castries Hewanorra

Tue 3/10

3:24 pm-10:29 am

1 stop22h 05m

$501

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Wed 3/4

3:20 pm-3:04 pm

1 stop19h 44m

Castries Hewanorra

Sat 3/7

4:24 pm-9:29 am

1 stop21h 05m

$501

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Tue 3/3

3:20 pm-3:04 pm

1 stop19h 44m

Castries Hewanorra

Thu 3/12

3:24 pm-10:29 am

1 stop22h 05m

$557

SeattleCastries

SEA - SLU

SEASLU

Seattle/Tacoma Intl

Tue 12/9

5:50 am-9:30 am

3 stops23h 40m

Castries George F. L. Charle

Mon 12/15

12:35 pm-2:31 pm

3 stops29h 56m

$1,322

SeattleCastries

SEA - SLU

SEASLU

Seattle/Tacoma Intl

Fri 12/26

11:59 pm-10:10 pm

3 stops18h 11m

Castries George F. L. Charle

Tue 1/6

7:30 am-9:31 am

3 stops30h 01m

$1,541

SeattleCastries

SEA - SLU

SEASLU

Seattle/Tacoma Intl

Sun 2/15

5:50 am-5:30 pm

3 stops31h 40m

Castries George F. L. Charle

Sun 2/22

5:00 am-10:16 pm

2 stops21h 16m

$1,770

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

Showing 1-10 of 17 results
1
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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 $434). Flying from Seattle 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 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 October 16, 2025.

It’s optimal to fly from Seattle to Saint Lucia in the morning. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the evening.

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 October 16, 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
11,043 reviews

Food

6.4

Boarding

7.5

Entertainment

6.9

Overall

7.2

Comfort

7.2

Crew

8.0

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
11,043 reviews
American Airlines
7.2
Good
11,043 reviews

Food

6.4

Boarding

7.5

Entertainment

6.9

Overall

7.2

Comfort

7.2

Crew

8.0

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 13h 18m. Fly via American Airlines or Delta 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.

  • What are the cheapest airlines to fly from Seattle to Saint Lucia one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $200. However, be on the lookout for offers from WestJet and American Airlines, as they are both options that can get you from Seattle to Saint Lucia for a low price.

  • 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 $434). Flying from Seattle 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

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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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$668Average$897FlexibilityNo cancel feeOn-time71%

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