$212+ 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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — UVF
Aug 6 — Aug 131
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Saint Lucia with Cheapflights
1. Tell us where you want to go
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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Best
Last-minute
One-way
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 July 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 July 7, 2026.
This American Airlines deal was found by Cheapflights users on 7/2. 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 8/135:31 pm
SEA
- UVF
2 stops17h 18m
American Airlines
Sun 8/162:49 pm
UVF
- SEA
2 stops21h 40m
American Airlines
Deal found 7/2![American Airlines logo]()
$538
This Air Canada deal was found by Cheapflights users on 7/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:50 am
SEA
- UVF
2 stops24h 25m
Air Canada
Fri 10/23:15 pm
UVF
- SEA
2 stops26h 07m
Air Canada
Deal found 7/2![Air Canada logo]()
$650
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Sun 8/165:31 pm
SEA
- UVF
2 stops17h 48m
American Airlines
Sun 8/232:49 pm
UVF
- SEA
2 stops21h 40m
American Airlines
Deal found 7/2![American Airlines logo]()
$660
This American Airlines deal was found by Cheapflights users on 7/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/28:45 pm
SEA
- UVF
1 stop14h 05m
American Airlines
Sat 8/83:19 pm
UVF
- SEA
2 stops21h 10m
American Airlines
Deal found 7/3![American Airlines logo]()
$726
This Expedia deal was found by Cheapflights users on 7/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:10 am
SEA
- UVF
2 stops26h 30m
Air Canada
Fri 11/135:40 pm
UVF
- SEA
2 stops28h 42m
Air Canada
Deal found 7/6![Air Canada logo]()
$732
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Mon 8/38:45 pm
SEA
- UVF
1 stop14h 05m
American Airlines
Tue 8/112:49 pm
UVF
- SEA
1 stop12h 31m
American Airlines
Deal found 7/2![American Airlines logo]()
$821
This Mytrip deal was found by Cheapflights users on 7/2. 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 9/245:50 am
SEA
- UVF
3 stops29h 25m
Multiple Airlines
Fri 10/23:15 pm
UVF
- SEA
2 stops26h 07m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$829
This Expedia deal was found by Cheapflights users on 7/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/48:00 am
SEA
- SLU
2 stops32h 00m
Multiple Airlines
Sat 10/1712:35 pm
SLU
- SEA
2 stops35h 29m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$984
This oojo deal was found by Cheapflights users on 7/2. 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 9/247:52 am
SEA
- SLU
2 stops27h 43m
Multiple Airlines
Fri 10/26:00 pm
SLU
- SEA
2 stops19h 35m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,213
This oojo deal was found by Cheapflights users on 7/6. 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.
Sun 11/87:48 am
SEA
- SLU
2 stops28h 17m
Multiple Airlines
Fri 11/136:00 pm
SLU
- SEA
2 stops20h 15m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$1,215
This Expedia deal was found by Cheapflights users on 7/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/28:00 am
SEA
- SLU
2 stops32h 00m
Multiple Airlines
Sun 8/93:45 pm
SLU
- SEA
2 stops56h 22m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$1,558
This oojo deal was found by Cheapflights users on 7/2. 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 8/138:00 am
SEA
- SLU
2 stops27h 35m
Multiple Airlines
Sun 8/165:00 am
SLU
- SEA
2 stops32h 16m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,565
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 July 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 July 7, 2026.
This Expedia deal was found by Cheapflights users on 7/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:10 am
SEA
- UVF
2 stops26h 30m
Air Canada
Fri 11/135:40 pm
UVF
- SEA
2 stops28h 42m
Air Canada
Deal found 7/6![Air Canada logo]()
$732
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Mon 8/38:45 pm
SEA
- UVF
1 stop14h 05m
American Airlines
Tue 8/112:49 pm
UVF
- SEA
1 stop12h 31m
American Airlines
Deal found 7/2![American Airlines logo]()
$821
This Delta deal was found by Cheapflights users on 7/5. 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.
Sun 8/211:59 pm
SEA
- UVF
1 stop11h 15m
Delta
Sat 8/83:34 pm
UVF
- SEA
1 stop21h 15m
Delta
Deal found 7/5![Delta logo]()
$923
This Justfly.com deal was found by Cheapflights users on 7/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/410:19 pm
SEA
- UVF
1 stop14h 03m
JetBlue
Thu 8/134:17 pm
UVF
- SEA
1 stop31h 51m
JetBlue
Deal found 7/2![JetBlue logo]()
$950
This Expedia deal was found by Cheapflights users on 7/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/48:00 am
SEA
- SLU
2 stops32h 00m
Multiple Airlines
Sat 10/1712:35 pm
SLU
- SEA
2 stops35h 29m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$984
This American Airlines deal was found by Cheapflights users on 7/4. 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.
Tue 8/45:40 pm
SEA
- UVF
2 stops17h 09m
American Airlines
Thu 8/133:19 pm
UVF
- SEA
2 stops21h 06m
American Airlines
Deal found 7/4![American Airlines logo]()
$928
This oojo deal was found by Cheapflights users on 7/2. 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 9/247:52 am
SEA
- SLU
2 stops27h 43m
Multiple Airlines
Fri 10/26:00 pm
SLU
- SEA
2 stops19h 35m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,213
This oojo deal was found by Cheapflights users on 7/5. 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.
Sun 11/87:48 am
SEA
- SLU
2 stops28h 17m
Multiple Airlines
Fri 11/136:00 pm
SLU
- SEA
2 stops20h 15m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$1,215
This Orbitz deal was found by Cheapflights users on 7/3. 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.
Tue 8/48:00 am
SEA
- SLU
2 stops32h 00m
Multiple Airlines
Wed 8/1212:35 pm
SLU
- SEA
2 stops35h 32m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$1,570
This oojo deal was found by Cheapflights users on 7/2. 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 8/138:00 am
SEA
- SLU
2 stops27h 35m
Multiple Airlines
Sun 8/165:00 am
SLU
- SEA
3 stops32h 16m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,650
This oojo deal was found by Cheapflights users on 7/2. 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 8/58:00 am
SEA
- SLU
2 stops26h 10m
Multiple Airlines
Tue 8/1111:45 am
SLU
- SEA
2 stops37h 15m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,795
Last-minute flights from Seattle to Saint LuciaDiscover last-minute flight deals from Seattle to Saint Lucia. Data last updated July 7, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Saint Lucia. Data last updated July 7, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/48:55 pm
SEA
- UVF
1 stop13h 55m
American Airlines
Sat 7/112:50 pm
UVF
- SEA
1 stop12h 17m
American Airlines
Deal found 7/3![American Airlines logo]()
$868
This Travelocity deal was found by Cheapflights users on 7/3. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/48:00 am
SEA
- SLU
2 stops49h 05m
Multiple Airlines
Sat 7/113:45 pm
SLU
- SEA
2 stops56h 22m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$1,790
This oojo deal was found by Cheapflights users on 7/5. 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.
Mon 7/68:00 am
SEA
- SLU
2 stops21h 10m
Multiple Airlines
Mon 7/137:40 pm
SLU
- SEA
2 stops17h 36m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$1,809
This American Airlines deal was found by Cheapflights users on 7/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/28:45 pm
SEA
- UVF
1 stop14h 05m
American Airlines
Sat 8/83:19 pm
UVF
- SEA
2 stops21h 10m
American Airlines
Deal found 7/3![American Airlines logo]()
$726
This Expedia deal was found by Cheapflights users on 7/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/28:00 am
SEA
- SLU
2 stops32h 00m
Multiple Airlines
Sun 8/93:45 pm
SLU
- SEA
2 stops56h 22m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$1,558
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Mon 8/38:45 pm
SEA
- UVF
1 stop14h 05m
American Airlines
Tue 8/112:49 pm
UVF
- SEA
1 stop12h 31m
American Airlines
Deal found 7/2![American Airlines logo]()
$821
This Orbitz deal was found by Cheapflights users on 7/3. 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.
Tue 8/48:00 am
SEA
- SLU
2 stops32h 00m
Multiple Airlines
Wed 8/1212:35 pm
SLU
- SEA
2 stops35h 32m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$1,570
This oojo deal was found by Cheapflights users on 7/2. 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 8/58:00 am
SEA
- SLU
2 stops26h 10m
Multiple Airlines
Tue 8/1111:45 am
SLU
- SEA
2 stops37h 15m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,795
This Mytrip deal was found by Cheapflights users on 7/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:50 am
SEA
- SLU
3 stops29h 45m
Multiple Airlines
Thu 8/135:50 pm
SLU
- SEA
3 stops31h 52m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$1,745
This American Airlines deal was found by Cheapflights users on 7/2. 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 8/135:31 pm
SEA
- UVF
2 stops17h 18m
American Airlines
Sun 8/162:49 pm
UVF
- SEA
2 stops21h 40m
American Airlines
Deal found 7/2![American Airlines logo]()
$538
This oojo deal was found by Cheapflights users on 7/2. 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 8/138:00 am
SEA
- SLU
2 stops27h 35m
Multiple Airlines
Sun 8/165:00 am
SLU
- SEA
2 stops32h 16m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,565
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Sun 8/165:31 pm
SEA
- UVF
2 stops17h 48m
American Airlines
Sun 8/232:49 pm
UVF
- SEA
2 stops21h 40m
American Airlines
Deal found 7/2![American Airlines logo]()
$660
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 July 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 July 7, 2026.
This United Airlines deal was found by Cheapflights users on 7/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:15 pm
SEA
- UVF
1 stop19h 16m
United Airlines
Deal found 7/5![United Airlines logo]()
$212
This Delta deal was found by Cheapflights users on 7/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1511:59 pm
SEA
- UVF
1 stop11h 27m
Delta
Deal found 7/3![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 7/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2010:58 pm
SEA
- UVF
1 stop12h 14m
Delta
Deal found 7/6![Delta logo]()
$290
This Mytrip deal was found by Cheapflights users on 7/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/153:00 pm
SEA
- UVF
3 stops20h 15m
Air Canada
Deal found 7/3![Air Canada logo]()
$447
This Kiwi.com deal was found by Cheapflights users on 7/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/711:18 pm
SEA
- UVF
3 stops35h 22m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$642
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 July 7, 2026.
Round-trip from | $538 (American Airlines) |
|---|---|
One-way from | $212 (United Airlines) |
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 July 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 - UVF
SEAUVF
Seattle/Tacoma Intl
Sun 11/8
10:10 am-4:40 pm
2 stops26h 30m
Castries Hewanorra
Fri 11/13
5:40 pm-6:22 pm
2 stops28h 42m
$732
Quickest round-trip
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Mon 8/3
8:45 pm-1:50 pm
1 stop14h 05m
Castries Hewanorra
Tue 8/11
2:49 pm-12:20 am
1 stop12h 31m
$821
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Sun 8/2
11:59 pm-2:14 pm
1 stop11h 15m
Castries Hewanorra
Sat 8/8
3:34 pm-9:49 am
1 stop21h 15m
$923
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Tue 8/4
5:40 pm-1:49 pm
2 stops17h 09m
Castries Hewanorra
Thu 8/13
3:19 pm-9:25 am
2 stops21h 06m
$928
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Tue 8/4
10:19 pm-3:22 pm
1 stop14h 03m
Castries Hewanorra
Thu 8/13
4:17 pm-9:08 pm
1 stop31h 51m
$950
SeattleCastries
SEA - SLU
SEASLU
Seattle/Tacoma Intl
Sun 10/4
8:00 am-7:00 pm
2 stops32h 00m
Castries George F. L. Charle
Sat 10/17
12:35 pm-9:04 pm
2 stops35h 29m
$984
SeattleCastries
SEA - SLU
SEASLU
Seattle/Tacoma Intl
Thu 9/24
7:52 am-2:35 pm
2 stops27h 43m
Castries George F. L. Charle
Fri 10/2
6:00 pm-10:35 am
2 stops19h 35m
$1,213
SeattleCastries
SEA - SLU
SEASLU
Seattle/Tacoma Intl
Sun 11/8
7:48 am-4:05 pm
2 stops28h 17m
Castries George F. L. Charle
Fri 11/13
6:00 pm-10:15 am
2 stops20h 15m
$1,215
SeattleCastries
SEA - SLU
SEASLU
Seattle/Tacoma Intl
Tue 8/4
8:00 am-7:00 pm
2 stops32h 00m
Castries George F. L. Charle
Wed 8/12
12:35 pm-9:07 pm
2 stops35h 32m
$1,570
SeattleCastries
SEA - SLU
SEASLU
Seattle/Tacoma Intl
Thu 8/13
8:00 am-2:35 pm
2 stops27h 35m
Castries George F. L. Charle
Sun 8/16
5:00 am-10:16 am
3 stops32h 16m
$1,650
Showing 1-10 of 17 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 July 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.
Boarding
7.5
Comfort
7.2
Crew
7.9
Entertainment
6.8
Food
6.4
Overall
7.1
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
Boarding
7.5
Comfort
7.2
Crew
7.9
Entertainment
6.8
Food
6.4
Overall
7.1
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$668 | Average$1,077 | FlexibilityNo cancel fee | On-time71% |