$290+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — UVF
Sep 6 — Sep 131
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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Saint Lucia
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Last-minute
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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 7, 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 7, 2026.
This Orbitz deal was found by Cheapflights users on 8/5. 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.
Thu 12/37:45 am -
1 stop28h 55m
Mon 12/75:40 pm -
1 stop31h 19m
Deal found 8/5![Air Canada logo]()
$762
This Mytrip deal was found by Cheapflights users on 8/2. 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 10/2810:10 am -
2 stops26h 30m
Tue 11/103:40 pm -
3 stops25h 40m
Deal found 8/2![Multiple Airlines logo]()
$764
This Mytrip deal was found by Cheapflights users on 8/2. 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.
Thu 11/1210:10 am -
2 stops26h 30m
Tue 11/173:40 pm -
2 stops25h 40m
Deal found 8/2![Multiple Airlines logo]()
$880
This American Airlines deal was found by Cheapflights users on 8/5. 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 10/178:39 pm -
1 stop14h 03m
Sat 10/242:42 pm -
1 stop12h 17m
Deal found 8/5![American Airlines logo]()
$909
This oojo deal was found by Cheapflights users on 8/2. 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.
Thu 11/128:18 am -
2 stops26h 17m
Tue 11/1711:45 am -
2 stops38h 09m
Deal found 8/2![Multiple Airlines logo]()
$1,181
This oojo deal was found by Cheapflights users on 8/2. 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.
Wed 10/288:20 am -
2 stops25h 50m
Tue 11/1011:45 am -
2 stops26h 30m
Deal found 8/2![Multiple Airlines logo]()
$1,202
This oojo deal was found by Cheapflights users on 8/5. 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.
Thu 12/38:21 am -
2 stops26h 14m
Mon 12/77:40 pm -
2 stops18h 35m
Deal found 8/5![Multiple Airlines logo]()
$1,234
This oojo deal was found by Cheapflights users on 8/2. 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 12/279:26 pm -
2 stops30h 44m
Sun 1/35:00 am -
2 stops33h 15m
Deal found 8/2![Multiple Airlines logo]()
$1,604
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 7, 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 7, 2026.
This Orbitz deal was found by Cheapflights users on 8/3. 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.
Wed 1/208:15 am -
2 stops28h 25m
Mon 1/255:40 pm -
2 stops24h 57m
Deal found 8/3![Air Canada logo]()
$732
This Mytrip deal was found by Cheapflights users on 8/2. 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 10/287:45 am -
1 stop28h 55m
Tue 11/103:40 pm -
2 stops25h 40m
Deal found 8/2![Multiple Airlines logo]()
$792
This American Airlines deal was found by Cheapflights users on 8/6. 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 1/412:43 pm -
1 stop20h 21m
Fri 1/82:56 pm -
1 stop12h 46m
Deal found 8/6![American Airlines logo]()
$802
This Orbitz deal was found by Cheapflights users on 8/5. 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.
Thu 12/37:45 am -
1 stop28h 55m
Mon 12/75:40 pm -
2 stops28h 42m
Deal found 8/5![Air Canada logo]()
$762
This Air Canada deal was found by Cheapflights users on 8/4. 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.
Tue 1/267:45 am -
1 stop28h 55m
Fri 1/295:40 pm -
1 stop31h 19m
Deal found 8/4![Air Canada logo]()
$772
This Mytrip deal was found by Cheapflights users on 8/2. 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.
Thu 11/1210:10 am -
2 stops26h 30m
Tue 11/173:40 pm -
2 stops25h 40m
Deal found 8/2![Multiple Airlines logo]()
$880
This oojo deal was found by Cheapflights users on 8/2. 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.
Thu 11/128:18 am -
2 stops26h 17m
Tue 11/1711:45 am -
2 stops38h 09m
Deal found 8/2![Multiple Airlines logo]()
$1,181
This oojo deal was found by Cheapflights users on 8/2. 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.
Wed 10/288:20 am -
2 stops25h 50m
Tue 11/1011:45 am -
2 stops26h 30m
Deal found 8/2![Multiple Airlines logo]()
$1,202
This oojo deal was found by Cheapflights users on 8/5. 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.
Thu 12/38:21 am -
2 stops26h 14m
Mon 12/77:40 pm -
2 stops18h 35m
Deal found 8/5![Multiple Airlines logo]()
$1,234
This oojo deal was found by Cheapflights users on 8/3. 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.
Wed 1/208:21 am -
2 stops24h 49m
Mon 1/257:40 pm -
2 stops18h 35m
Deal found 8/3![Multiple Airlines logo]()
$1,244
This oojo deal was found by Cheapflights users on 8/6. 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.
Tue 1/2611:05 pm -
2 stops34h 05m
Fri 1/296:00 pm -
2 stops20h 15m
Deal found 8/6![Multiple Airlines logo]()
$1,272
This oojo deal was found by Cheapflights users on 8/2. 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 12/279:26 pm -
2 stops30h 44m
Sun 1/35:00 am -
3 stops33h 15m
Deal found 8/2![Multiple Airlines logo]()
$1,880
Last-minute flights from Seattle to Saint LuciaDiscover last-minute flight deals from Seattle to Saint Lucia. Data last updated August 7, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Saint Lucia. Data last updated August 7, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/5. 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 8/149:42 pm -
2 stops13h 07m
Fri 8/213:19 pm -
2 stops21h 06m
Deal found 8/5![American Airlines logo]()
$1,040
This American Airlines deal was found by Cheapflights users on 8/4. 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.
Thu 9/38:21 pm -
1 stop14h 28m
Thu 9/103:02 pm -
2 stops22h 07m
Deal found 8/4![American Airlines logo]()
$974
This Delta deal was found by Cheapflights users on 8/4. 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.
Thu 9/311:59 pm -
1 stop11h 15m
Thu 9/103:32 pm -
1 stop21h 18m
Deal found 8/4![Delta logo]()
$1,146
This American Airlines deal was found by Cheapflights users on 8/2. 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 9/128:50 pm -
1 stop14h 12m
Sat 9/193:02 pm -
2 stops22h 07m
Deal found 8/2![American Airlines logo]()
$1,223
This Delta deal was found by Cheapflights users on 8/5. 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.
Sat 9/1210:59 pm -
1 stop12h 13m
Sat 9/193:32 pm -
1 stop21h 18m
Deal found 8/5![Delta logo]()
$1,566
This American Airlines deal was found by Cheapflights users on 8/2. 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.
Thu 9/173:42 pm -
2 stops19h 20m
Thu 9/243:02 pm -
2 stops23h 23m
Deal found 8/2![American Airlines logo]()
$944
This Delta deal was found by Cheapflights users on 8/2. 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.
Thu 9/1710:59 pm -
1 stop12h 13m
Thu 9/243:32 pm -
1 stop21h 18m
Deal found 8/2![Delta logo]()
$1,166
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 7, 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 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 10/310:30 am -
3 stops24h 10m
Deal found 8/2![WestJet logo]()
$290
This Trip.com deal was found by Cheapflights users on 8/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:00 am -
1 stop26h 40m
Deal found 8/2![Multiple Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 8/2. 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.
Wed 9/1610:59 pm -
1 stop12h 13m
Deal found 8/2![Delta logo]()
$474
This American Airlines deal was found by Cheapflights users on 8/2. 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 9/165:02 pm -
2 stops18h 00m
Deal found 8/2![American Airlines logo]()
$479
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 7, 2026.
Round-trip from | $730 (American Airlines) |
|---|---|
One-way from | $290 (Kiwi.com) |
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 August 7, 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
Wed 1/20
8:15 am-4:40 pm
2 stops28h 25m
Castries Hewanorra
Mon 1/25
5:40 pm-2:37 pm
2 stops24h 57m
$732
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Thu 12/3
7:45 am-4:40 pm
1 stop28h 55m
Castries Hewanorra
Mon 12/7
5:40 pm-6:22 pm
2 stops28h 42m
$762
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Tue 1/26
7:45 am-4:40 pm
1 stop28h 55m
Castries Hewanorra
Fri 1/29
5:40 pm-8:59 pm
1 stop31h 19m
$772
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Wed 10/28
7:45 am-3:40 pm
1 stop28h 55m
Castries Hewanorra
Tue 11/10
3:40 pm-1:20 pm
2 stops25h 40m
$792
Quickest round-trip
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Mon 1/4
12:43 pm-1:04 pm
1 stop20h 21m
Castries Hewanorra
Fri 1/8
2:56 pm-11:42 pm
1 stop12h 46m
$802
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Thu 11/12
10:10 am-4:40 pm
2 stops26h 30m
Castries Hewanorra
Tue 11/17
3:40 pm-1:20 pm
2 stops25h 40m
$880
SeattleCastries
SEA Seattle/Tacoma Intl - SLU Castries George F. L. Charle
SEASLU
Seattle/Tacoma Intl
Thu 11/12
8:18 am-2:35 pm
2 stops26h 17m
Castries George F. L. Charle
Tue 11/17
11:45 am-9:54 pm
2 stops38h 09m
$1,181
SeattleCastries
SEA Seattle/Tacoma Intl - SLU Castries George F. L. Charle
SEASLU
Seattle/Tacoma Intl
Wed 10/28
8:20 am-1:10 pm
2 stops25h 50m
Castries George F. L. Charle
Tue 11/10
11:45 am-10:15 am
2 stops26h 30m
$1,202
SeattleCastries
SEA Seattle/Tacoma Intl - SLU Castries George F. L. Charle
SEASLU
Seattle/Tacoma Intl
Thu 12/3
8:21 am-2:35 pm
2 stops26h 14m
Castries George F. L. Charle
Mon 12/7
7:40 pm-10:15 am
2 stops18h 35m
$1,234
SeattleCastries
SEA Seattle/Tacoma Intl - SLU Castries George F. L. Charle
SEASLU
Seattle/Tacoma Intl
Wed 1/20
8:21 am-1:10 pm
2 stops24h 49m
Castries George F. L. Charle
Mon 1/25
7:40 pm-10:15 am
2 stops18h 35m
$1,244
Showing 1-10 of 16 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 7, 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.
Comfort
7.2
Overall
7.1
Crew
7.9
Food
6.4
Boarding
7.5
Entertainment
6.8
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
Comfort
7.2
Overall
7.1
Crew
7.9
Food
6.4
Boarding
7.5
Entertainment
6.8
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
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Saint Lucia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Saint Lucia by cabin class
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 7, 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 2,558,603 searches. Data last updated August 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$668 | Average$1,077 | FlexibilityNo cancel fee | On-time71% |