$402+ 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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — UVF
Sep 27 — Oct 41
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Saint Lucia with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Seattle to Saint LuciaExplore 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 August 28, 2026.
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 August 28, 2026.
This Air Canada deal was found by Cheapflights users on 8/26. 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.
Sun 12/67:05 pm -
2 stops17h 35m
Wed 12/95:40 pm -
2 stops28h 42m
Deal found 8/26![Air Canada logo]()
$734
This Mytrip deal was found by Cheapflights users on 8/26. 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 10/97:35 pm -
3 stops39h 05m
Fri 10/163:10 pm -
2 stops26h 12m
Deal found 8/26![Multiple Airlines logo]()
$888
This American Airlines deal was found by Cheapflights users on 8/24. 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 10/68:39 pm -
1 stop14h 03m
Tue 10/132:42 pm -
1 stop12h 17m
Deal found 8/24![American Airlines logo]()
$904
This American Airlines deal was found by Cheapflights users on 8/24. 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.
Mon 9/216:15 pm -
2 stops16h 47m
Wed 9/303:02 pm -
2 stops25h 17m
Deal found 8/24![American Airlines logo]()
$939
This American Airlines deal was found by Cheapflights users on 8/26. 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.
Fri 10/99:42 pm -
1 stop13h 28m
Fri 10/164:04 pm -
2 stops22h 10m
Deal found 8/26![American Airlines logo]()
$944
This Delta deal was found by Cheapflights users on 8/24. 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.
Mon 9/2111:59 pm -
1 stop11h 13m
Thu 10/13:32 pm -
1 stop21h 18m
Deal found 8/24![Delta logo]()
$1,008
This oojo deal was found by Cheapflights users on 8/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/118:00 am -
2 stops29h 05m
Sun 10/185:00 am -
2 stops32h 35m
Deal found 8/27![Multiple Airlines logo]()
$1,240
This Mytrip deal was found by Cheapflights users on 8/26. 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 12/257:45 am -
3 stops24h 20m
Fri 1/16:45 pm -
2 stops30h 14m
Deal found 8/26![Multiple Airlines logo]()
$2,138
This Expedia deal was found by Cheapflights users on 8/26. 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 12/177:45 am -
2 stops27h 50m
Tue 12/2212:35 pm -
2 stops36h 24m
Deal found 8/26![Multiple Airlines logo]()
$3,283
Best flights from Seattle to Saint LuciaDiscover carefully curated flight deals from Seattle to Saint Lucia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 28, 2026.
Discover carefully curated flight deals from Seattle to Saint Lucia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 28, 2026.
This Air Canada deal was found by Cheapflights users on 8/25. 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.
Sun 12/610:10 am -
2 stops26h 30m
Wed 12/95:40 pm -
1 stop31h 19m
Deal found 8/25![Air Canada logo]()
$734
This American Airlines deal was found by Cheapflights users on 8/28. 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 1/51:02 pm -
1 stop20h 45m
Tue 1/122:56 pm -
1 stop12h 46m
Deal found 8/28![American Airlines logo]()
$874
This Delta deal was found by Cheapflights users on 8/24. 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.
Mon 9/2111:59 pm -
1 stop11h 13m
Fri 10/23:32 pm -
1 stop21h 18m
Deal found 8/24![Delta logo]()
$1,008
This Expedia deal was found by Cheapflights users on 8/24. 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.
Fri 1/157:45 am -
2 stops31h 15m
Tue 1/1912:35 pm -
2 stops36h 24m
Deal found 8/24![Multiple Airlines logo]()
$1,145
This American Airlines deal was found by Cheapflights users on 8/26. 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.
Fri 10/98:39 pm -
1 stop14h 01m
Fri 10/162:42 pm -
1 stop12h 17m
Deal found 8/26![American Airlines logo]()
$939
This Delta deal was found by Cheapflights users on 8/24. 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.
Mon 9/2111:59 pm -
1 stop11h 13m
Tue 9/293:32 pm -
1 stop21h 18m
Deal found 8/24![Delta logo]()
$1,008
This American Airlines deal was found by Cheapflights users on 8/27. 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 10/68:39 pm -
1 stop15h 25m
Tue 10/132:42 pm -
2 stops21h 49m
Deal found 8/27![American Airlines logo]()
$939
This American Airlines deal was found by Cheapflights users on 8/24. 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.
Mon 9/216:15 pm -
2 stops16h 47m
Wed 9/303:02 pm -
2 stops25h 17m
Deal found 8/24![American Airlines logo]()
$939
This oojo deal was found by Cheapflights users on 8/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/118:00 am -
2 stops29h 05m
Sun 10/185:00 am -
2 stops32h 35m
Deal found 8/27![Multiple Airlines logo]()
$1,240
This Mytrip deal was found by Cheapflights users on 8/26. 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 12/257:45 am -
3 stops24h 20m
Fri 1/16:45 pm -
2 stops30h 14m
Deal found 8/26![Multiple Airlines logo]()
$2,138
This Expedia deal was found by Cheapflights users on 8/26. 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 12/177:45 am -
2 stops27h 50m
Tue 12/2212:35 pm -
2 stops36h 24m
Deal found 8/26![Multiple Airlines logo]()
$3,283
This Expedia deal was found by Cheapflights users on 8/28. 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.
Tue 1/57:45 am -
2 stops21h 45m
Tue 1/1212:35 pm -
2 stops36h 24m
Deal found 8/28![Multiple Airlines logo]()
$3,702
Last-minute flights from Seattle to Saint LuciaDiscover last-minute flight deals from Seattle to Saint Lucia. Data last updated August 28, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Saint Lucia. Data last updated August 28, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/24. 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.
Mon 9/216:15 pm -
2 stops16h 47m
Wed 9/303:02 pm -
2 stops25h 17m
Deal found 8/24![American Airlines logo]()
$939
This Delta deal was found by Cheapflights users on 8/24. 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.
Mon 9/2111:59 pm -
1 stop11h 13m
Thu 10/13:32 pm -
1 stop21h 18m
Deal found 8/24![Delta logo]()
$1,008
This Delta deal was found by Cheapflights users on 8/24. 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.
Mon 9/2110:59 pm -
1 stop12h 13m
Wed 9/303:32 pm -
1 stop21h 18m
Deal found 8/24![Delta logo]()
$1,038
This KAYAK deal was found by Cheapflights users on 8/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:10 pm -
2 stops64h 50m
Mon 9/2810:00 pm -
2 stops46h 10m
Deal found 8/24![British Airways logo]()
$10,321
This KAYAK deal was found by Cheapflights users on 8/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:10 pm -
2 stops64h 50m
Thu 10/110:05 pm -
1 stop40h 30m
Deal found 8/24![British Airways logo]()
$10,402
One-way flights from Seattle to Saint LuciaSearch for one-way flight options from Seattle to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated August 28, 2026.
Search for one-way flight options from Seattle to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated August 28, 2026.
This JetBlue deal was found by Cheapflights users on 8/27. 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.
Sun 10/1110:15 pm -
1 stop14h 19m
Deal found 8/27![JetBlue logo]()
$402
This American Airlines deal was found by Cheapflights users on 8/27. 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.
Sun 10/116:20 pm -
2 stops17h 44m
Deal found 8/27![American Airlines logo]()
$480
This American Airlines deal was found by Cheapflights users on 8/24. 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 9/55:32 pm -
2 stops17h 17m
Deal found 8/24![American Airlines logo]()
$484
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:30 am -
3 stops29h 10m
Deal found 8/24![WestJet logo]()
$765
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 August 28, 2026.
Round-trip from | $734 (Air Canada) |
|---|---|
One-way from | $402 (JetBlue) |
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 7,457,451 searches. Data last updated August 28, 2026.
Use the filters below to find and compare flights from Seattle to Saint Lucia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Sun 12/6
10:10 am-4:40 pm
2 stops26h 30m
Castries Hewanorra
Wed 12/9
5:40 pm-8:59 pm
1 stop31h 19m
$734
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Tue 1/5
1:02 pm-1:47 pm
1 stop20h 45m
Castries Hewanorra
Tue 1/12
2:56 pm-11:42 pm
1 stop12h 46m
$874
Quickest round-trip
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Fri 10/9
8:39 pm-1:40 pm
1 stop14h 01m
Castries Hewanorra
Fri 10/16
2:42 pm-11:59 pm
1 stop12h 17m
$939
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Tue 10/6
8:39 pm-3:04 pm
1 stop15h 25m
Castries Hewanorra
Tue 10/13
2:42 pm-9:31 am
2 stops21h 49m
$939
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Mon 9/21
6:15 pm-2:02 pm
2 stops16h 47m
Castries Hewanorra
Wed 9/30
3:02 pm-1:19 pm
2 stops25h 17m
$939
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Mon 9/21
11:59 pm-2:12 pm
1 stop11h 13m
Castries Hewanorra
Fri 10/2
3:32 pm-9:50 am
1 stop21h 18m
$1,008
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Mon 9/21
11:59 pm-2:12 pm
1 stop11h 13m
Castries Hewanorra
Tue 9/29
3:32 pm-9:50 am
1 stop21h 18m
$1,008
SeattleCastries
SEA Seattle/Tacoma Intl - SLU Castries George F. L. Charle
SEASLU
Seattle/Tacoma Intl
Fri 1/15
7:45 am-7:00 pm
2 stops31h 15m
Castries George F. L. Charle
Tue 1/19
12:35 pm-8:59 pm
2 stops36h 24m
$1,145
SeattleCastries
SEA Seattle/Tacoma Intl - SLU Castries George F. L. Charle
SEASLU
Seattle/Tacoma Intl
Sun 10/11
8:00 am-4:05 pm
2 stops29h 05m
Castries George F. L. Charle
Sun 10/18
5:00 am-10:35 am
2 stops32h 35m
$1,240
SeattleCastries
SEA Seattle/Tacoma Intl - SLU Castries George F. L. Charle
SEASLU
Seattle/Tacoma Intl
Fri 12/25
7:45 am-12:05 pm
3 stops24h 20m
Castries George F. L. Charle
Fri 1/1
6:45 pm-8:59 pm
2 stops30h 14m
$2,138
Showing 1-10 of 15 resultsSorted by cheapest first
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.
SEA-UVF
SEA-SLU
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
SEA-LC0
SEA-UVF
SEA-SLU
No data available for this route at this time. Please check back soon.
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 August 28, 2026.
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.
Boarding
7.5
Entertainment
6.8
Overall
7.1
Comfort
7.2
Crew
7.9
Food
6.4
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
Boarding
7.5
Entertainment
6.8
Overall
7.1
Comfort
7.2
Crew
7.9
Food
6.4
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
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.
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Alternative routes for Seattle to Saint Lucia
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Complete your trip
Complete your trip to Saint Lucia by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Seattle to Saint Lucia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Saint Lucia flights
Browse other Seattle and Saint Lucia flight options. Last updated on August 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated August 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$668 | Average$1,077 | FlexibilityNo cancel fee | On-time71% |