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Saint Lucia

$263+ 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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — UVF
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Round-trip from

$720
(Mytrip)

One-way from

$263
(JetBlue)

Popular in

June

Cheapest in

August

Average price

$780
From Seattle/Tacoma Intl to Saint Lucia
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One-way flight from Seattle/Tacoma Intl to Saint Lucia
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Highest demand for flights based on searches. 20% potential increase in price ($234 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($76 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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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 February 20, 2025.

This American Airlines deal was found by Cheapflights users on 2/20. 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 11/56:21 pmSEA - UVF
2 stops14h 39mAmerican Airlines
Mon 11/105:15 pmUVF - SEA
2 stops20h 21mAmerican Airlines
Deal found 2/20$635
This Mytrip deal was found by Cheapflights users on 2/19. 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.
Sun 4/65:45 amSEA - UVF
2 stops30h 00mAir Canada
Sun 4/133:45 pmUVF - SEA
1 stop32h 41mAir Canada
Deal found 2/19$720
This JetBlue deal was found by Cheapflights users on 2/20. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1411:48 pmSEA - UVF
1 stop13h 03mJetBlue
Mon 3/1711:53 amUVF - SEA
1 stop13h 45mJetBlue
Deal found 2/20$800
This Mytrip deal was found by Cheapflights users on 2/19. 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.
Sun 4/611:30 amSEA - UVF
3 stops24h 15mMultiple Airlines
Sun 4/132:40 pmUVF - SEA
2 stops26h 41mMultiple Airlines
Deal found 2/19$911
This WestJet deal was found by Cheapflights users on 2/20. 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.
Sun 4/63:15 pmSEA - UVF
2 stops43h 29mWestJet
Sun 4/132:40 pmUVF - SEA
2 stops50h 41mWestJet
Deal found 2/20$946
This Mytrip deal was found by Cheapflights users on 2/20. 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 3/1412:41 pmSEA - SLU
3 stops30h 29mMultiple Airlines
Mon 3/179:25 amSLU - SEA
3 stops27h 25mMultiple Airlines
Deal found 2/20$1,691
This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2111:59 pmSEA - UVF
1 stop12h 26mUnited Airlines
Sat 3/2912:52 pmUVF - SEA
1 stop33h 09mUnited Airlines
Deal found 2/20$4,217

Find flights from Seattle to Saint Lucia within your budget

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 February 20, 2025.

Fly from

Seattle

Fly to

Saint Lucia

Route

Depart

Return

Price

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Sun 4/6

5:45 am-2:45 pm

2 stops30h 00m

Castries Hewanorra

Sun 4/13

3:45 pm-9:26 pm

1 stop32h 41m

$720

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Fri 3/14

11:48 pm-3:51 pm

1 stop13h 03m

Castries Hewanorra

Mon 3/17

11:53 am-10:38 pm

1 stop13h 45m

$800

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Sun 4/6

11:30 am-2:45 pm

3 stops24h 15m

Castries Hewanorra

Sun 4/13

2:40 pm-2:21 pm

2 stops26h 41m

$911

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Sun 4/6

3:15 pm-1:44 pm

2 stops43h 29m

Castries Hewanorra

Sun 4/13

2:40 pm-2:21 pm

2 stops50h 41m

$946

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Thu 7/10

11:58 pm-1:45 pm

1 stop10h 47m

Castries Hewanorra

Mon 7/14

3:45 pm-10:40 am

2 stops21h 55m

$949

SeattleCastries

SEA - SLU

SEASLU

Seattle/Tacoma Intl

Fri 3/14

12:41 pm-10:10 pm

3 stops30h 29m

Castries George F. L. Charle

Mon 3/17

9:25 am-9:50 am

3 stops27h 25m

$1,691

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Fri 3/21

11:59 pm-3:25 pm

1 stop12h 26m

Castries Hewanorra

Sat 3/29

12:52 pm-7:01 pm

1 stop33h 09m

$4,217

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Fri 3/21

11:48 pm-3:51 pm

1 stop13h 03m

$263

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Fri 3/21

3:15 pm-1:44 pm

3 stops43h 29m

$301

SeattleCastries

SEA - UVF

SEAUVF

Seattle/Tacoma Intl

Fri 3/21

7:05 pm-2:45 pm

2 stops40h 40m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

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.

Travel insights for flights from Seattle to Saint Lucia

Get recent, data-driven insights about flights from Seattle to Saint Lucia including ideal travel times, pricing trends, and more.

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 February 20, 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 February 20, 2025.
JetBlue
7.4
Good
3,070 reviews

Entertainment

7.3

Boarding

7.6

Food

6.8

Comfort

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Feb 2025

BOS - SFO

Flight was delayed an hour due to a flight plan issue. Then additional fuel was needed. The crew did communicate well. Upon departure there was not food available for purchase, at least not by the time they got to row 23. Wifi didn't work consistently. Not the normal Jetblue experience. The Captain and crew were great though.

JetBlue
7.4
Good
3,070 reviews
JetBlue
7.4
Good
3,070 reviews

Entertainment

7.3

Boarding

7.6

Food

6.8

Comfort

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Feb 2025

BOS - SFO

Flight was delayed an hour due to a flight plan issue. Then additional fuel was needed. The crew did communicate well. Upon departure there was not food available for purchase, at least not by the time they got to row 23. Wifi didn't work consistently. Not the normal Jetblue experience. The Captain and crew were great though.

United Airlines
7.4
Good
8,766 reviews
JetBlue
7.4
Good
3,070 reviews

Entertainment

7.3

Boarding

7.6

Food

6.8

Comfort

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Feb 2025

BOS - SFO

Flight was delayed an hour due to a flight plan issue. Then additional fuel was needed. The crew did communicate well. Upon departure there was not food available for purchase, at least not by the time they got to row 23. Wifi didn't work consistently. Not the normal Jetblue experience. The Captain and crew were great though.

American Airlines
7.2
Good
10,000 reviews
JetBlue
7.4
Good
3,070 reviews

Entertainment

7.3

Boarding

7.6

Food

6.8

Comfort

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Feb 2025

BOS - SFO

Flight was delayed an hour due to a flight plan issue. Then additional fuel was needed. The crew did communicate well. Upon departure there was not food available for purchase, at least not by the time they got to row 23. Wifi didn't work consistently. Not the normal Jetblue experience. The Captain and crew were great though.

WestJet
7.2
Good
2,801 reviews
JetBlue
7.4
Good
3,070 reviews

Entertainment

7.3

Boarding

7.6

Food

6.8

Comfort

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Feb 2025

BOS - SFO

Flight was delayed an hour due to a flight plan issue. Then additional fuel was needed. The crew did communicate well. Upon departure there was not food available for purchase, at least not by the time they got to row 23. Wifi didn't work consistently. Not the normal Jetblue experience. The Captain and crew were great though.

Air Canada
7.0
Good
8,748 reviews
JetBlue
7.4
Good
3,070 reviews

Entertainment

7.3

Boarding

7.6

Food

6.8

Comfort

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20

4.0
Okay

Anonymous,Feb 2025

BOS - SFO

Flight was delayed an hour due to a flight plan issue. Then additional fuel was needed. The crew did communicate well. Upon departure there was not food available for purchase, at least not by the time they got to row 23. Wifi didn't work consistently. Not the normal Jetblue experience. The Captain and crew were great though.

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.

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

    The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as $263. However, be on the lookout for offers from WestJet and Air Canada, 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 $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 2 airlines flying from Seattle to Saint Lucia

Discover the top 2 airlines 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$270Average$885FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$529Average$804FlexibilityNo cancel feeOn-time71%
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