$555+ Cheap flights from Seattle (SEA) to Saint Lucia
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — UVF
Apr 3 — Apr 101
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
Cheapest
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 March 4, 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 March 4, 2026.
This Orbitz deal was found by Cheapflights users on 3/1. 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 3/298:00 am
SEA
- UVF
1 stop28h 25m
Air Canada
Sun 4/54:20 pm
UVF
- SEA
1 stop32h 33m
Air Canada
Deal found 3/1![Air Canada logo]()
$555
This Orbitz deal was found by Cheapflights users on 3/2. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:00 am
SEA
- UVF
1 stop28h 20m
Air Canada
Thu 4/234:15 pm
UVF
- SEA
1 stop32h 38m
Air Canada
Deal found 3/2![Air Canada logo]()
$568
This Air Canada deal was found by Cheapflights users on 3/2. 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.
Tue 4/148:00 pm
SEA
- UVF
2 stops40h 25m
Air Canada
Sun 4/264:05 pm
UVF
- SEA
2 stops30h 15m
Air Canada
Deal found 3/2![Air Canada logo]()
$588
This Air Canada deal was found by Cheapflights users on 3/2. 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.
Tue 4/148:00 am
SEA
- UVF
1 stop28h 20m
Air Canada
Wed 4/224:20 pm
UVF
- SEA
2 stops25h 48m
Air Canada
Deal found 3/2![Air Canada logo]()
$589
This Air Canada deal was found by Cheapflights users on 3/2. 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.
Fri 4/178:00 pm
SEA
- UVF
2 stops40h 20m
Air Canada
Thu 4/234:15 pm
UVF
- SEA
2 stops25h 50m
Air Canada
Deal found 3/2![Air Canada logo]()
$650
This American Airlines deal was found by Cheapflights users on 2/28. 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 9/88:08 pm
SEA
- UVF
1 stop14h 42m
American Airlines
Tue 9/224:00 pm
UVF
- SEA
2 stops21h 30m
American Airlines
Deal found 2/28![American Airlines logo]()
$651
This American Airlines deal was found by Cheapflights users on 3/4. 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.
Sat 8/2211:55 pm
SEA
- UVF
1 stop11h 20m
American Airlines
Sun 8/303:15 pm
UVF
- SEA
2 stops21h 04m
American Airlines
Deal found 3/4![American Airlines logo]()
$676
This Travelocity deal was found by Cheapflights users on 3/2. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:00 am
SEA
- UVF
1 stop28h 20m
Air Canada
Fri 4/244:15 pm
UVF
- SEA
1 stop32h 38m
Air Canada
Deal found 3/2![Air Canada logo]()
$737
This Mytrip deal was found by Cheapflights users on 2/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:00 am
SEA
- UVF
1 stop28h 20m
Multiple Airlines
Tue 4/142:40 pm
UVF
- SEA
3 stops27h 25m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$740
This Mytrip deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/298:00 am
SEA
- SLU
2 stops31h 25m
Multiple Airlines
Sun 4/56:00 pm
SLU
- SEA
2 stops30h 53m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$1,119
This Mytrip deal was found by Cheapflights users on 3/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:00 am
SEA
- SLU
3 stops25h 05m
Multiple Airlines
Sat 4/252:05 pm
SLU
- SEA
3 stops34h 48m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$1,544
This Mytrip deal was found by Cheapflights users on 2/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/185:45 am
SEA
- SLU
3 stops27h 25m
Multiple Airlines
Sat 11/285:50 pm
SLU
- SEA
2 stops32h 26m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$1,949
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 March 4, 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 March 4, 2026.
This Orbitz deal was found by Cheapflights users on 3/1. 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 3/2910:20 am
SEA
- UVF
2 stops26h 05m
Air Canada
Sun 4/54:20 pm
UVF
- SEA
1 stop32h 33m
Air Canada
Deal found 3/1![Air Canada logo]()
$599
This American Airlines deal was found by Cheapflights users on 3/1. 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 8/2211:55 pm
SEA
- UVF
1 stop11h 20m
American Airlines
Sun 8/303:15 pm
UVF
- SEA
2 stops21h 04m
American Airlines
Deal found 3/1![American Airlines logo]()
$760
This Mytrip deal was found by Cheapflights users on 2/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:00 am
SEA
- UVF
1 stop28h 20m
Multiple Airlines
Tue 4/142:40 pm
UVF
- SEA
2 stops27h 25m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$760
This Delta deal was found by Cheapflights users on 2/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/911:30 pm
SEA
- UVF
1 stop11h 28m
Delta
Tue 4/143:22 pm
UVF
- SEA
1 stop21h 38m
Delta
Deal found 2/28![Delta logo]()
$806
This United Airlines deal was found by Cheapflights users on 3/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:05 pm
SEA
- UVF
2 stops14h 05m
United Airlines
Sat 4/2512:55 pm
UVF
- SEA
2 stops25h 42m
United Airlines
Deal found 3/2![United Airlines logo]()
$1,003
This Delta deal was found by Cheapflights users on 3/2. 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 4/154:05 pm
SEA
- UVF
1 stop18h 57m
Delta
Tue 4/213:22 pm
UVF
- SEA
1 stop21h 38m
Delta
Deal found 3/2![Delta logo]()
$828
This Booking.com deal was found by Cheapflights users on 3/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/178:00 pm
SEA
- UVF
2 stops40h 20m
Air Canada
Fri 4/244:15 pm
UVF
- SEA
1 stop32h 38m
Air Canada
Deal found 3/3![Air Canada logo]()
$884
This United Airlines deal was found by Cheapflights users on 3/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/167:54 pm
SEA
- UVF
2 stops40h 37m
United Airlines
Sat 7/2512:55 pm
UVF
- SEA
2 stops27h 27m
United Airlines
Deal found 3/4![United Airlines logo]()
$1,021
This Delta deal was found by Cheapflights users on 3/3. 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.
Sun 3/1511:30 pm
SEA
- UVF
1 stop11h 28m
Delta
Tue 3/243:18 pm
UVF
- SEA
1 stop21h 43m
Delta
Deal found 3/3![Delta logo]()
$1,011
This Mytrip deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/293:40 pm
SEA
- SLU
3 stops23h 45m
Multiple Airlines
Sun 4/56:00 pm
SLU
- SEA
2 stops30h 53m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$1,119
This United Airlines deal was found by Cheapflights users on 2/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/177:00 am
SEA
- UVF
2 stops29h 31m
United Airlines
Sat 7/2512:55 pm
UVF
- SEA
1 stop14h 04m
United Airlines
Deal found 2/27![United Airlines logo]()
$1,054
This Mytrip deal was found by Cheapflights users on 3/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:00 am
SEA
- SLU
3 stops25h 05m
Multiple Airlines
Sat 4/252:05 pm
SLU
- SEA
3 stops34h 48m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$1,544
This Mytrip deal was found by Cheapflights users on 3/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/238:00 am
SEA
- SLU
2 stops28h 35m
Multiple Airlines
Fri 8/286:00 pm
SLU
- SEA
2 stops30h 07m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$2,861
This Expedia deal was found by Cheapflights users on 3/1. 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 8/108:00 am
SEA
- SLU
2 stops28h 35m
Multiple Airlines
Mon 8/177:10 pm
SLU
- SEA
2 stops52h 57m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$4,197
This Expedia deal was found by Cheapflights users on 2/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/128:00 am
SEA
- SLU
2 stops26h 10m
Multiple Airlines
Fri 6/196:00 pm
SLU
- SEA
2 stops54h 07m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$4,215
Last-minute flights from Seattle to Saint LuciaDiscover last-minute flight deals from Seattle to Saint Lucia. Data last updated March 4, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Saint Lucia. Data last updated March 4, 2026 and is based on user searches.
This Orbitz deal was found by Cheapflights users on 3/1. 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 3/298:00 am
SEA
- UVF
1 stop28h 25m
Air Canada
Sun 4/54:20 pm
UVF
- SEA
1 stop32h 33m
Air Canada
Deal found 3/1![Air Canada logo]()
$555
This Mytrip deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/298:00 am
SEA
- SLU
2 stops31h 25m
Multiple Airlines
Sun 4/56:00 pm
SLU
- SEA
2 stops30h 53m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$1,119
This American Airlines deal was found by Cheapflights users on 3/3. 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.
Wed 4/110:16 pm
SEA
- UVF
1 stop12h 32m
American Airlines
Tue 4/142:45 pm
UVF
- SEA
2 stops22h 56m
American Airlines
Deal found 3/3![American Airlines logo]()
$775
This Mytrip deal was found by Cheapflights users on 2/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:00 am
SEA
- UVF
1 stop28h 20m
Multiple Airlines
Tue 4/142:40 pm
UVF
- SEA
3 stops27h 25m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$740
This Air Canada deal was found by Cheapflights users on 3/2. 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.
Tue 4/148:00 pm
SEA
- UVF
2 stops40h 25m
Air Canada
Sun 4/264:05 pm
UVF
- SEA
1 stop32h 48m
Air Canada
Deal found 3/2![Air Canada logo]()
$588
This Air Canada deal was found by Cheapflights users on 3/2. 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.
Tue 4/148:00 am
SEA
- UVF
1 stop28h 20m
Air Canada
Wed 4/224:20 pm
UVF
- SEA
2 stops25h 48m
Air Canada
Deal found 3/2![Air Canada logo]()
$589
This Orbitz deal was found by Cheapflights users on 3/2. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:00 am
SEA
- UVF
1 stop28h 20m
Air Canada
Thu 4/234:15 pm
UVF
- SEA
1 stop32h 38m
Air Canada
Deal found 3/2![Air Canada logo]()
$568
This Travelocity deal was found by Cheapflights users on 3/2. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:00 am
SEA
- UVF
1 stop28h 20m
Air Canada
Fri 4/244:15 pm
UVF
- SEA
1 stop32h 38m
Air Canada
Deal found 3/2![Air Canada logo]()
$737
This Air Canada deal was found by Cheapflights users on 3/2. 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.
Fri 4/178:00 pm
SEA
- UVF
2 stops40h 20m
Air Canada
Wed 4/224:20 pm
UVF
- SEA
2 stops25h 48m
Air Canada
Deal found 3/2![Air Canada logo]()
$650
This Mytrip deal was found by Cheapflights users on 3/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:00 am
SEA
- SLU
3 stops25h 05m
Multiple Airlines
Sat 4/252:05 pm
SLU
- SEA
3 stops34h 48m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$1,544
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 March 4, 2026.
Search for one-way flight options from Seattle to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated March 4, 2026.
This Booking.com deal was found by Cheapflights users on 2/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/128:00 am
SEA
- SLU
2 stops26h 10m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$1,164
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 March 4, 2026.
Round-trip from | $555 (Orbitz) |
|---|
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 March 4, 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
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Sun 3/29
10:20 am-3:25 pm
2 stops26h 05m
Castries Hewanorra
Sun 4/5
4:20 pm-9:53 pm
1 stop32h 33m
$599
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Sat 8/22
11:55 pm-2:15 pm
1 stop11h 20m
Castries Hewanorra
Sun 8/30
3:15 pm-9:19 am
2 stops21h 04m
$760
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Thu 4/9
8:00 am-3:20 pm
1 stop28h 20m
Castries Hewanorra
Tue 4/14
2:40 pm-3:05 pm
2 stops27h 25m
$760
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Thu 4/9
11:30 pm-1:58 pm
1 stop11h 28m
Castries Hewanorra
Tue 4/14
3:22 pm-10:00 am
1 stop21h 38m
$806
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Wed 4/15
4:05 pm-2:02 pm
1 stop18h 57m
Castries Hewanorra
Tue 4/21
3:22 pm-10:00 am
1 stop21h 38m
$828
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Fri 4/17
8:00 pm-3:20 pm
2 stops40h 20m
Castries Hewanorra
Fri 4/24
4:15 pm-9:53 pm
1 stop32h 38m
$884
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Fri 4/17
7:05 pm-12:10 pm
2 stops14h 05m
Castries Hewanorra
Sat 4/25
12:55 pm-11:37 am
2 stops25h 42m
$1,003
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Sun 3/15
11:30 pm-1:58 pm
1 stop11h 28m
Castries Hewanorra
Tue 3/24
3:18 pm-10:01 am
1 stop21h 43m
$1,011
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Thu 7/16
7:54 pm-3:31 pm
2 stops40h 37m
Castries Hewanorra
Sat 7/25
12:55 pm-1:22 pm
2 stops27h 27m
$1,021
SeattleCastries
SEA - UVF
SEAUVF
Seattle/Tacoma Intl
Fri 7/17
7:00 am-3:31 pm
2 stops29h 31m
Castries Hewanorra
Sat 7/25
12:55 pm-11:59 pm
1 stop14h 04m
$1,054
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 March 4, 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.
Crew
8.0
Boarding
7.5
Overall
7.1
Food
6.4
Comfort
7.2
Entertainment
6.9
Reviews
1 / 20
2.0
MediocreSusie,Jan 2026
CLT - TPA
Crew
8.0
Boarding
7.5
Overall
7.1
Food
6.4
Comfort
7.2
Entertainment
6.9
Reviews
1 / 20
2.0
MediocreSusie,Jan 2026
CLT - TPA
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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Seattle and Saint Lucia flights
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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 March 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$725 | Average$848 | FlexibilityNo cancel fee | On-time71% |