$318+ 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — UVF
Oct 16 — Oct 231
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 September 16, 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 September 16, 2026.
This Justfly.com deal was found by Cheapflights users on 9/12. 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.
Thu 10/297:45 am -
1 stop28h 55m
Mon 11/25:35 pm -
2 stops43h 57m
Deal found 9/12![Air Canada logo]()
$689
This Air Canada deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/68:40 am -
2 stops28h 00m
Wed 12/95:35 pm -
1 stop31h 24m
Deal found 9/14![Air Canada logo]()
$714
This FlightHub deal was found by Cheapflights users on 9/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:05 pm -
2 stops17h 35m
Thu 11/265:35 pm -
2 stops28h 47m
Deal found 9/12![Air Canada logo]()
$731
This Justfly.com deal was found by Cheapflights users on 9/11. 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.
Thu 11/58:40 am -
2 stops28h 00m
Mon 11/95:35 pm -
2 stops25h 02m
Deal found 9/11![Air Canada logo]()
$744
This Booking.com deal was found by Cheapflights users on 9/15. 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 10/307:05 pm -
2 stops42h 35m
Fri 11/65:35 pm -
2 stops25h 02m
Deal found 9/15![Air Canada logo]()
$769
This Mytrip deal was found by Cheapflights users on 9/12. 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 10/293:30 pm -
3 stops21h 10m
Mon 11/25:35 pm -
2 stops28h 47m
Deal found 9/12![Multiple Airlines logo]()
$787
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:39 pm -
1 stop15h 29m
Fri 11/62:32 pm -
1 stop13h 27m
Deal found 9/15![American Airlines logo]()
$826
This Justfly.com deal was found by Cheapflights users on 9/14. 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.
Fri 10/307:05 pm -
2 stops42h 35m
Tue 11/33:55 pm -
2 stops25h 45m
Deal found 9/14![Multiple Airlines logo]()
$829
This Mytrip deal was found by Cheapflights users on 9/12. 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 11/197:05 pm -
2 stops17h 35m
Thu 11/265:35 pm -
3 stops28h 47m
Deal found 9/12![Multiple Airlines logo]()
$830
This Booking.com deal was found by Cheapflights users on 9/15. 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 10/25:50 am -
3 stops37h 20m
Tue 10/612:35 pm -
3 stops33h 10m
Deal found 9/15![Multiple Airlines logo]()
$1,402
This Mytrip deal was found by Cheapflights users on 9/15. 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 12/247:45 am -
3 stops31h 15m
Mon 12/2812:35 pm -
3 stops33h 47m
Deal found 9/15![Multiple Airlines logo]()
$1,664
This Travelocity deal was found by Cheapflights users on 9/13. 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.
Sun 12/67:45 am -
2 stops28h 20m
Mon 12/147:40 pm -
2 stops53h 19m
Deal found 9/13![Multiple Airlines logo]()
$4,477
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 September 16, 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 September 16, 2026.
This Justfly.com deal was found by Cheapflights users on 9/12. 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.
Thu 11/197:45 am -
1 stop28h 55m
Thu 11/265:35 pm -
1 stop31h 24m
Deal found 9/12![Air Canada logo]()
$689
This American Airlines deal was found by Cheapflights users on 9/12. 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 1/49:28 pm -
1 stop11h 30m
Mon 1/113:30 pm -
1 stop13h 24m
Deal found 9/12![American Airlines logo]()
$826
This Expedia deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/77:45 am -
2 stops31h 15m
Tue 1/1212:35 pm -
2 stops36h 24m
Deal found 9/13![Multiple Airlines logo]()
$840
This Justfly.com deal was found by Cheapflights users on 9/15. 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.
Thu 10/297:45 am -
1 stop28h 55m
Mon 11/25:35 pm -
2 stops43h 57m
Deal found 9/15![Air Canada logo]()
$713
This Air Canada deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/610:10 am -
2 stops26h 30m
Wed 12/95:35 pm -
2 stops32h 22m
Deal found 9/13![Air Canada logo]()
$714
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:39 pm -
1 stop15h 29m
Fri 11/62:32 pm -
1 stop13h 27m
Deal found 9/15![American Airlines logo]()
$826
This Justfly.com deal was found by Cheapflights users on 9/11. 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.
Thu 11/58:40 am -
2 stops28h 00m
Mon 11/95:35 pm -
1 stop31h 24m
Deal found 9/11![Air Canada logo]()
$744
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:39 pm -
1 stop14h 03m
Tue 11/32:32 pm -
1 stop13h 27m
Deal found 9/14![American Airlines logo]()
$826
This Booking.com deal was found by Cheapflights users on 9/15. 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 10/307:05 pm -
2 stops42h 35m
Fri 11/65:35 pm -
2 stops25h 02m
Deal found 9/15![Air Canada logo]()
$769
This Booking.com deal was found by Cheapflights users on 9/15. 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 10/25:50 am -
3 stops37h 20m
Tue 10/612:35 pm -
3 stops33h 10m
Deal found 9/15![Multiple Airlines logo]()
$1,402
This Mytrip deal was found by Cheapflights users on 9/15. 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 12/247:45 am -
3 stops31h 15m
Mon 12/2812:35 pm -
3 stops33h 47m
Deal found 9/15![Multiple Airlines logo]()
$1,664
This Mytrip deal was found by Cheapflights users on 9/15. 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 2/138:40 am -
3 stops25h 50m
Sat 2/2012:35 pm -
3 stops29h 05m
Deal found 9/15![Multiple Airlines logo]()
$2,018
This Travelocity deal was found by Cheapflights users on 9/13. 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.
Sun 12/67:45 am -
2 stops28h 20m
Mon 12/147:40 pm -
2 stops53h 19m
Deal found 9/13![Multiple Airlines logo]()
$4,477
This Expedia deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:45 am -
2 stops27h 50m
Mon 11/27:40 pm -
2 stops53h 19m
Deal found 9/12![Multiple Airlines logo]()
$4,539
This Travelocity deal was found by Cheapflights users on 9/14. 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 1/237:45 am -
2 stops31h 15m
Sat 3/209:10 am -
2 stops38h 49m
Deal found 9/14![Multiple Airlines logo]()
$6,235
Last-minute flights from Seattle to Saint LuciaDiscover last-minute flight deals from Seattle to Saint Lucia. Data last updated September 16, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Saint Lucia. Data last updated September 16, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 9/15. 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 10/25:50 am -
3 stops37h 20m
Tue 10/612:35 pm -
3 stops33h 10m
Deal found 9/15![Multiple Airlines logo]()
$1,402
This American Airlines deal was found by Cheapflights users on 9/11. 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 10/219:42 pm -
1 stop13h 38m
Wed 10/282:42 pm -
1 stop12h 17m
Deal found 9/11![American Airlines logo]()
$831
This Justfly.com deal was found by Cheapflights users on 9/12. 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.
Thu 10/297:45 am -
1 stop28h 55m
Mon 11/25:35 pm -
2 stops43h 57m
Deal found 9/12![Air Canada logo]()
$689
This Mytrip deal was found by Cheapflights users on 9/12. 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 10/293:30 pm -
3 stops21h 10m
Mon 11/25:35 pm -
2 stops28h 47m
Deal found 9/12![Multiple Airlines logo]()
$787
This Expedia deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:45 am -
2 stops27h 50m
Mon 11/27:40 pm -
2 stops53h 19m
Deal found 9/12![Multiple Airlines logo]()
$4,539
This Mytrip deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:05 pm -
2 stops42h 35m
Fri 11/65:35 pm -
1 stop31h 24m
Deal found 9/15![Air Canada logo]()
$744
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:39 pm -
1 stop15h 29m
Fri 11/62:32 pm -
1 stop13h 27m
Deal found 9/15![American Airlines logo]()
$826
This Justfly.com deal was found by Cheapflights users on 9/14. 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.
Fri 10/307:05 pm -
2 stops42h 35m
Tue 11/33:55 pm -
2 stops25h 45m
Deal found 9/14![Multiple Airlines logo]()
$829
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 September 16, 2026.
Search for one-way flight options from Seattle to Saint Lucia. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
This Air Canada deal was found by Cheapflights users on 9/14. 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 10/293:15 pm -
2 stops21h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Air Canada logo]()
$318
This American Airlines deal was found by Cheapflights users on 9/14. 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 10/299:42 pm -
1 stop13h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![American Airlines logo]()
$444
This American Airlines deal was found by Cheapflights users on 9/13. 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 3/1010:08 pm -
1 stop13h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![American Airlines logo]()
$451
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Wed 3/1010:03 am -
3 stops24h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$800
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/294:39 pm -
3 stops40h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![United Airlines logo]()
$1,939
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 September 16, 2026.
Round-trip from | $689 (Justfly.com) |
|---|---|
One-way from | $318 (Air Canada) |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Saint Lucia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 16, 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
Thu 10/29
3:15 pm-3:40 pm
2 stops21h 25m
Castries Hewanorra
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$318
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Thu 10/29
9:42 pm-2:20 pm
1 stop13h 38m
Castries Hewanorra
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$444
Quickest round-trip
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Wed 3/10
10:08 pm-3:18 pm
1 stop13h 10m
Castries Hewanorra
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$451
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Thu 11/19
7:45 am-4:40 pm
1 stop28h 55m
Castries Hewanorra
Thu 11/26
5:35 pm-8:59 pm
1 stop31h 24m
$689
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Thu 10/29
7:45 am-3:40 pm
1 stop28h 55m
Castries Hewanorra
Mon 11/2
5:35 pm-9:32 am
2 stops43h 57m
$713
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Sun 12/6
10:10 am-4:40 pm
2 stops26h 30m
Castries Hewanorra
Wed 12/9
5:35 pm-9:57 pm
2 stops32h 22m
$714
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Thu 11/5
8:40 am-4:40 pm
2 stops28h 00m
Castries Hewanorra
Mon 11/9
5:35 pm-8:59 pm
1 stop31h 24m
$744
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Fri 10/30
7:05 pm-4:40 pm
2 stops42h 35m
Castries Hewanorra
Fri 11/6
5:35 pm-2:37 pm
2 stops25h 02m
$769
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Wed 3/10
10:03 am-2:55 pm
3 stops24h 52m
Castries Hewanorra
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$800
SeattleCastries
SEA Seattle/Tacoma Intl - UVF Castries Hewanorra
SEAUVF
Seattle/Tacoma Intl
Mon 1/4
9:28 pm-12:58 pm
1 stop11h 30m
Castries Hewanorra
Mon 1/11
3:30 pm-12:54 am
1 stop13h 24m
$826
Showing 1-10 of 20 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 September 16, 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
Food
6.4
Boarding
7.4
Crew
7.9
Entertainment
6.8
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
Comfort
7.2
Overall
7.1
Food
6.4
Boarding
7.4
Crew
7.9
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.
Browse thousands of different options on Cheapflights for your next trip
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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 September 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Seattle to Saint Lucia
Discover the top airline that operate flights from Seattle to Saint Lucia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$752 | Average$1,122 | FlexibilityNo cancel fee | On-time71% |