$307+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — UVF
Aug 31 — Sep 71
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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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 1, 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 1, 2026.
This Air Canada deal was found by Cheapflights users on 7/31. 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.
Sat 12/127:05 pm
SEA
- UVF
2 stops17h 35m
Air Canada
Fri 12/185:40 pm
UVF
- SEA
2 stops24h 57m
Air Canada
Deal found 7/31![Air Canada logo]()
$762
This Justfly.com deal was found by Cheapflights users on 7/30. 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 11/247:05 pm
SEA
- UVF
2 stops41h 35m
Air Canada
Sun 11/295:40 pm
UVF
- SEA
2 stops43h 47m
Air Canada
Deal found 7/30![Air Canada logo]()
$802
This Expedia deal was found by Cheapflights users on 7/29. 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.
Sat 9/129:40 pm
SEA
- UVF
1 stop14h 54m
JetBlue
Sat 9/194:25 pm
UVF
- SEA
1 stop31h 19m
JetBlue
Deal found 7/29![JetBlue logo]()
$935
This American Airlines deal was found by Cheapflights users on 7/30. 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 8/318:21 pm
SEA
- UVF
1 stop14h 28m
American Airlines
Wed 9/93:02 pm
UVF
- SEA
2 stops22h 07m
American Airlines
Deal found 7/30![American Airlines logo]()
$939
This American Airlines deal was found by Cheapflights users on 7/30. 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 8/218:21 pm
SEA
- UVF
1 stop14h 28m
American Airlines
Tue 9/12:49 pm
UVF
- SEA
1 stop12h 31m
American Airlines
Deal found 7/30![American Airlines logo]()
$991
This American Airlines deal was found by Cheapflights users on 7/30. 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 8/229:42 pm
SEA
- UVF
1 stop13h 47m
American Airlines
Sat 8/293:19 pm
UVF
- SEA
1 stop21h 26m
American Airlines
Deal found 7/30![American Airlines logo]()
$999
This Delta deal was found by Cheapflights users on 7/30. 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 8/3111:59 pm
SEA
- UVF
1 stop11h 15m
Delta
Wed 9/93:32 pm
UVF
- SEA
1 stop21h 18m
Delta
Deal found 7/30![Delta logo]()
$1,008
This American Airlines deal was found by Cheapflights users on 7/29. 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
SEA
- UVF
1 stop14h 12m
American Airlines
Sat 9/193:02 pm
UVF
- SEA
2 stops22h 07m
American Airlines
Deal found 7/29![American Airlines logo]()
$1,026
This oojo deal was found by Cheapflights users on 7/30. 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 8/317:59 am
SEA
- SLU
2 stops21h 11m
Multiple Airlines
Wed 9/910:15 am
SLU
- SEA
2 stops38h 39m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,407
This oojo deal was found by Cheapflights users on 7/30. 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.
Fri 8/218:13 am
SEA
- SLU
2 stops34h 57m
Multiple Airlines
Tue 9/111:45 am
SLU
- SEA
2 stops25h 49m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,413
This Orbitz deal was found by Cheapflights users on 7/30. 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.
Sat 8/298:00 am
SEA
- SLU
2 stops32h 00m
Multiple Airlines
Sat 9/512:35 pm
SLU
- SEA
2 stops35h 32m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,499
This oojo deal was found by Cheapflights users on 7/30. 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 8/317:59 am
SEA
- SLU
2 stops21h 11m
Multiple Airlines
Tue 9/111:45 am
SLU
- SEA
2 stops37h 15m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,530
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 1, 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 1, 2026.
This Orbitz deal was found by Cheapflights users on 7/29. 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.
Sun 1/107:45 am
SEA
- UVF
1 stop28h 55m
Air Canada
Sun 1/175:40 pm
UVF
- SEA
1 stop31h 19m
Air Canada
Deal found 7/29![Air Canada logo]()
$645
This American Airlines deal was found by Cheapflights users on 7/31. 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 1/259:45 pm
SEA
- UVF
1 stop13h 18m
American Airlines
Thu 1/282:56 pm
UVF
- SEA
1 stop12h 46m
American Airlines
Deal found 7/31![American Airlines logo]()
$874
This Expedia deal was found by Cheapflights users on 7/29. 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.
Sat 9/129:40 pm
SEA
- UVF
1 stop14h 54m
JetBlue
Sat 9/194:25 pm
UVF
- SEA
1 stop31h 19m
JetBlue
Deal found 7/29![JetBlue logo]()
$935
This Delta deal was found by Cheapflights users on 7/30. 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 8/3111:59 pm
SEA
- UVF
1 stop11h 15m
Delta
Wed 9/93:32 pm
UVF
- SEA
1 stop21h 18m
Delta
Deal found 7/30![Delta logo]()
$1,008
This oojo deal was found by Cheapflights users on 7/29. 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 1/108:21 am
SEA
- SLU
2 stops27h 44m
Multiple Airlines
Sun 1/176:55 pm
SLU
- SEA
2 stops19h 20m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$1,235
This Air Canada deal was found by Cheapflights users on 7/29. 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 1/253:15 pm
SEA
- UVF
2 stops45h 25m
Air Canada
Thu 1/285:40 pm
UVF
- SEA
2 stops28h 42m
Air Canada
Deal found 7/29![Air Canada logo]()
$723
This American Airlines deal was found by Cheapflights users on 7/30. 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 8/218:21 pm
SEA
- UVF
1 stop14h 28m
American Airlines
Tue 9/12:49 pm
UVF
- SEA
1 stop12h 31m
American Airlines
Deal found 7/30![American Airlines logo]()
$991
This American Airlines deal was found by Cheapflights users on 7/29. 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 9/125:34 pm
SEA
- UVF
2 stops17h 28m
American Airlines
Sat 9/193:02 pm
UVF
- SEA
2 stops22h 07m
American Airlines
Deal found 7/29![American Airlines logo]()
$996
This oojo deal was found by Cheapflights users on 7/31. 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 1/258:21 am
SEA
- SLU
2 stops19h 49m
Multiple Airlines
Thu 1/285:50 pm
SLU
- SEA
2 stops20h 25m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$1,401
This oojo deal was found by Cheapflights users on 7/30. 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 8/317:59 am
SEA
- SLU
2 stops21h 11m
Multiple Airlines
Wed 9/910:15 am
SLU
- SEA
3 stops27h 19m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,430
This oojo deal was found by Cheapflights users on 7/30. 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.
Fri 8/218:13 am
SEA
- SLU
2 stops34h 57m
Multiple Airlines
Tue 9/111:45 am
SLU
- SEA
3 stops25h 49m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,453
This oojo deal was found by Cheapflights users on 7/30. 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 8/317:59 am
SEA
- SLU
2 stops21h 11m
Multiple Airlines
Tue 9/111:45 am
SLU
- SEA
3 stops25h 49m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,575
This oojo deal was found by Cheapflights users on 7/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:59 am
SEA
- SLU
2 stops21h 11m
Multiple Airlines
Thu 8/275:50 pm
SLU
- SEA
2 stops31h 10m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$1,678
This Mytrip deal was found by Cheapflights users on 7/30. 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.
Sat 8/298:00 am
SEA
- SLU
2 stops27h 30m
Multiple Airlines
Sat 9/512:35 pm
SLU
- SEA
3 stops32h 57m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,742
Last-minute flights from Seattle to Saint LuciaDiscover last-minute flight deals from Seattle to Saint Lucia. Data last updated August 1, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Saint Lucia. Data last updated August 1, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/31. 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 8/311:59 pm
SEA
- UVF
1 stop11h 15m
Delta
Tue 8/113:34 pm
UVF
- SEA
1 stop21h 15m
Delta
Deal found 7/31![Delta logo]()
$1,048
This American Airlines deal was found by Cheapflights users on 7/30. 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 8/39:35 pm
SEA
- UVF
2 stops13h 15m
American Airlines
Tue 8/112:49 pm
UVF
- SEA
1 stop12h 31m
American Airlines
Deal found 7/30![American Airlines logo]()
$1,053
This Delta deal was found by Cheapflights users on 7/31. 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.
Tue 8/43:50 pm
SEA
- UVF
1 stop19h 24m
Delta
Wed 8/123:34 pm
UVF
- SEA
1 stop21h 15m
Delta
Deal found 7/31![Delta logo]()
$1,181
This Justfly.com deal was found by Cheapflights users on 7/28. 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 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 8/131:59 pm
UVF
- SEA
1 stop34h 09m
JetBlue
Deal found 7/28![JetBlue logo]()
$1,198
This American Airlines deal was found by Cheapflights users on 7/31. 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 8/411:56 pm
SEA
- UVF
2 stops35h 23m
American Airlines
Wed 8/122:49 pm
UVF
- SEA
1 stop12h 31m
American Airlines
Deal found 7/31![American Airlines logo]()
$1,204
This American Airlines deal was found by Cheapflights users on 7/30. 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 8/218:21 pm
SEA
- UVF
1 stop14h 28m
American Airlines
Tue 9/12:49 pm
UVF
- SEA
1 stop12h 31m
American Airlines
Deal found 7/30![American Airlines logo]()
$991
This oojo deal was found by Cheapflights users on 7/30. 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.
Fri 8/218:13 am
SEA
- SLU
2 stops34h 57m
Multiple Airlines
Tue 9/111:45 am
SLU
- SEA
2 stops25h 49m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,413
This American Airlines deal was found by Cheapflights users on 7/30. 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 8/229:42 pm
SEA
- UVF
1 stop13h 47m
American Airlines
Sat 8/293:19 pm
UVF
- SEA
1 stop21h 26m
American Airlines
Deal found 7/30![American Airlines logo]()
$999
This Orbitz deal was found by Cheapflights users on 7/30. 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.
Sat 8/298:00 am
SEA
- SLU
2 stops32h 00m
Multiple Airlines
Sat 9/512:35 pm
SLU
- SEA
2 stops35h 32m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,499
This American Airlines deal was found by Cheapflights users on 7/30. 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 8/318:21 pm
SEA
- UVF
1 stop14h 28m
American Airlines
Wed 9/93:02 pm
UVF
- SEA
2 stops22h 07m
American Airlines
Deal found 7/30![American Airlines logo]()
$939
This Delta deal was found by Cheapflights users on 7/30. 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 8/3111:59 pm
SEA
- UVF
1 stop11h 15m
Delta
Wed 9/93:32 pm
UVF
- SEA
1 stop21h 18m
Delta
Deal found 7/30![Delta logo]()
$1,008
This oojo deal was found by Cheapflights users on 7/30. 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 8/317:59 am
SEA
- SLU
2 stops21h 11m
Multiple Airlines
Wed 9/910:15 am
SLU
- SEA
2 stops38h 39m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,407
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 1, 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 1, 2026.
This Booking.com deal was found by Cheapflights users on 7/30. 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.
Wed 10/73:00 pm
SEA
- UVF
2 stops44h 15m
Air Canada
Deal found 7/30![Air Canada logo]()
$307
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Thu 8/206:15 pm
SEA
- UVF
2 stops40h 16m
United Airlines
Deal found 7/30![United Airlines logo]()
$319
This Expedia deal was found by Cheapflights users on 7/31. 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.
Mon 1/1810:10 am
SEA
- UVF
2 stops50h 30m
Air Canada
Deal found 7/31![Air Canada logo]()
$333
This Orbitz deal was found by Cheapflights users on 7/30. 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.
Mon 8/318:00 am
SEA
- UVF
1 stop27h 20m
Air Canada
Deal found 7/30![Air Canada logo]()
$343
This American Airlines deal was found by Cheapflights users on 7/30. 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 8/228:47 pm
SEA
- UVF
2 stops14h 42m
American Airlines
Deal found 7/30![American Airlines logo]()
$474
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Mon 1/183:10 pm
SEA
- UVF
3 stops19h 40m
WestJet
Deal found 7/31![WestJet logo]()
$548
This Mytrip deal was found by Cheapflights users on 7/30. 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.
Mon 8/247:00 am
SEA
- UVF
3 stops28h 20m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$701
This Mytrip deal was found by Cheapflights users on 7/30. 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.
Sat 8/2210:40 am
SEA
- UVF
3 stops24h 00m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$786
This American Airlines deal was found by Cheapflights users on 7/31. 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 1/189:45 pm
SEA
- UVF
2 stops14h 17m
American Airlines
Deal found 7/31![American Airlines logo]()
$1,064
This oojo deal was found by Cheapflights users on 7/31. 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 1/188:21 am
SEA
- SLU
2 stops19h 49m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$1,744
This oojo deal was found by Cheapflights users on 7/30. 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.
Sat 8/2210:45 pm
SEA
- SLU
2 stops38h 20m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,815
This oojo deal was found by Cheapflights users on 7/30. 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 8/317:59 am
SEA
- SLU
2 stops21h 11m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$1,937
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 1, 2026.
Round-trip from | $645 (Orbitz) |
|---|---|
One-way from | $307 (Booking.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 1, 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 1/10
7:45 am-4:40 pm
1 stop28h 55m
Castries Hewanorra
Sun 1/17
5:40 pm-8:59 pm
1 stop31h 19m
$645
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Mon 1/25
3:15 pm-4:40 pm
2 stops45h 25m
Castries Hewanorra
Thu 1/28
5:40 pm-6:22 pm
2 stops28h 42m
$723
Quickest round-trip
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Mon 1/25
9:45 pm-3:03 pm
1 stop13h 18m
Castries Hewanorra
Thu 1/28
2:56 pm-11:42 pm
1 stop12h 46m
$874
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Sat 9/12
9:40 pm-3:34 pm
1 stop14h 54m
Castries Hewanorra
Sat 9/19
4:25 pm-8:44 pm
1 stop31h 19m
$935
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Fri 8/21
8:21 pm-1:49 pm
1 stop14h 28m
Castries Hewanorra
Tue 9/1
2:49 pm-12:20 am
1 stop12h 31m
$991
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Sat 9/12
5:34 pm-2:02 pm
2 stops17h 28m
Castries Hewanorra
Sat 9/19
3:02 pm-10:09 am
2 stops22h 07m
$996
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Mon 8/31
11:59 pm-2:14 pm
1 stop11h 15m
Castries Hewanorra
Wed 9/9
3:32 pm-9:50 am
1 stop21h 18m
$1,008
SeattleCastries
SEA - SLU
SEASLU
Seattle/Tacoma Intl
Sun 1/10
8:21 am-4:05 pm
2 stops27h 44m
Castries George F. L. Charle
Sun 1/17
6:55 pm-10:15 am
2 stops19h 20m
$1,235
SeattleCastries
SEA - SLU
SEASLU
Seattle/Tacoma Intl
Mon 1/25
8:21 am-8:10 am
2 stops19h 49m
Castries George F. L. Charle
Thu 1/28
5:50 pm-10:15 am
2 stops20h 25m
$1,401
SeattleCastries
SEA - SLU
SEASLU
Seattle/Tacoma Intl
Mon 8/31
7:59 am-8:10 am
2 stops21h 11m
Castries George F. L. Charle
Wed 9/9
10:15 am-10:34 am
3 stops27h 19m
$1,430
Showing 1-10 of 29 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 1, 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.
Food
6.4
Boarding
7.5
Crew
7.9
Entertainment
6.8
Comfort
7.2
Overall
7.1
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
Food
6.4
Boarding
7.5
Crew
7.9
Entertainment
6.8
Comfort
7.2
Overall
7.1
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
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Seattle and Saint Lucia flights
Browse other Seattle and Saint Lucia flight options. Last updated on August 1, 2026.
Popular flight searches
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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 August 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$668 | Average$1,077 | FlexibilityNo cancel fee | On-time71% |