$252+ Cheap flights from Seattle (SEA) to Saint Thomas Island (STT)
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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — STT
Jun 21 — Jun 281
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Saint Thomas Island 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 Thomas Island
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Best
Last-minute
One-way
Cheapest flights from Seattle to Saint Thomas IslandExplore the most affordable flight options available from Seattle to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 22, 2026.
Explore the most affordable flight options available from Seattle to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 22, 2026.
This United Airlines deal was found by Cheapflights users on 5/17. 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.
Mon 11/94:30 pm
SEA
- STT
2 stops16h 42m
United Airlines
Wed 11/181:02 pm
STT
- SEA
2 stops13h 57m
United Airlines
Deal found 5/17![United Airlines logo]()
$534
This American Airlines deal was found by Cheapflights users on 5/20. 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 12/110:08 pm
SEA
- STT
1 stop13h 17m
American Airlines
Tue 12/152:49 pm
STT
- SEA
2 stops14h 06m
American Airlines
Deal found 5/20![American Airlines logo]()
$584
This United Airlines deal was found by Cheapflights users on 5/19. 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.
Sat 10/3111:59 pm
SEA
- STT
1 stop11h 31m
United Airlines
Fri 11/61:02 pm
STT
- SEA
1 stop11h 08m
United Airlines
Deal found 5/19![United Airlines logo]()
$602
This United Airlines deal was found by Cheapflights users on 5/17. 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.
Sun 11/155:30 pm
SEA
- STT
2 stops15h 42m
United Airlines
Sun 11/221:02 pm
STT
- SEA
2 stops13h 57m
United Airlines
Deal found 5/17![United Airlines logo]()
$611
This American Airlines deal was found by Cheapflights users on 5/20. 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 11/132:46 pm
SEA
- STT
1 stop19h 54m
American Airlines
Sun 11/226:17 pm
STT
- SEA
2 stops19h 28m
American Airlines
Deal found 5/20![American Airlines logo]()
$624
This American Airlines deal was found by Cheapflights users on 5/22. 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 10/1411:10 pm
SEA
- STT
1 stop10h 30m
American Airlines
Wed 10/215:40 pm
STT
- SEA
2 stops18h 48m
American Airlines
Deal found 5/22![American Airlines logo]()
$629
This FlightHub deal was found by Cheapflights users on 5/20. 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 7/911:46 pm
SEA
- STT
1 stop11h 13m
JetBlue
Tue 7/212:53 pm
STT
- SEA
2 stops22h 40m
JetBlue
Deal found 5/20![JetBlue logo]()
$658
This FlightHub deal was found by Cheapflights users on 5/19. 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.
Mon 7/611:44 pm
SEA
- STT
1 stop11h 19m
JetBlue
Tue 7/212:58 pm
STT
- SEA
2 stops22h 35m
JetBlue
Deal found 5/19![JetBlue logo]()
$666
This FlightHub deal was found by Cheapflights users on 5/21. 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.
Mon 6/1511:44 pm
SEA
- STT
1 stop11h 19m
JetBlue
Tue 6/232:58 pm
STT
- SEA
2 stops22h 37m
JetBlue
Deal found 5/21![JetBlue logo]()
$668
This United Airlines deal was found by Cheapflights users on 5/19. 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.
Wed 7/87:05 pm
SEA
- STT
2 stops17h 38m
United Airlines
Wed 7/221:22 pm
STT
- SEA
1 stop10h 56m
United Airlines
Deal found 5/19![United Airlines logo]()
$674
This American Airlines deal was found by Cheapflights users on 5/18. 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 10/126:22 pm
SEA
- STT
2 stops15h 18m
American Airlines
Thu 10/225:40 pm
STT
- SEA
2 stops18h 39m
American Airlines
Deal found 5/18![American Airlines logo]()
$677
Best flights from Seattle to Saint Thomas IslandDiscover carefully curated flight deals from Seattle to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 22, 2026.
Discover carefully curated flight deals from Seattle to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 22, 2026.
This United Airlines deal was found by Cheapflights users on 5/17. 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.
Mon 11/94:30 pm
SEA
- STT
2 stops16h 42m
United Airlines
Wed 11/181:02 pm
STT
- SEA
1 stop11h 08m
United Airlines
Deal found 5/17![United Airlines logo]()
$534
This American Airlines deal was found by Cheapflights users on 5/17. 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 11/910:08 pm
SEA
- STT
1 stop14h 47m
American Airlines
Wed 11/184:18 pm
STT
- SEA
1 stop11h 22m
American Airlines
Deal found 5/17![American Airlines logo]()
$584
This Delta deal was found by Cheapflights users on 5/20. 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 7/75:59 pm
SEA
- STT
2 stops15h 12m
Delta
Fri 7/171:21 pm
STT
- SEA
1 stop13h 38m
Delta
Deal found 5/20![Delta logo]()
$832
This United Airlines deal was found by Cheapflights users on 5/19. 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.
Sat 10/3111:59 pm
SEA
- STT
1 stop11h 31m
United Airlines
Fri 11/61:02 pm
STT
- SEA
1 stop11h 08m
United Airlines
Deal found 5/19![United Airlines logo]()
$602
This United Airlines deal was found by Cheapflights users on 5/17. 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.
Sun 11/155:30 pm
SEA
- STT
2 stops15h 42m
United Airlines
Sun 11/223:05 pm
STT
- SEA
1 stop13h 09m
United Airlines
Deal found 5/17![United Airlines logo]()
$611
This American Airlines deal was found by Cheapflights users on 5/17. 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 11/1212:59 am
SEA
- STT
2 stops11h 56m
American Airlines
Sun 11/226:17 pm
STT
- SEA
2 stops19h 28m
American Airlines
Deal found 5/17![American Airlines logo]()
$717
This United Airlines deal was found by Cheapflights users on 5/19. 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.
Tue 7/71:30 pm
SEA
- STT
2 stops19h 50m
United Airlines
Wed 7/221:22 pm
STT
- SEA
1 stop10h 56m
United Airlines
Deal found 5/19![United Airlines logo]()
$864
This United Airlines deal was found by Cheapflights users on 5/21. 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 6/1211:57 pm
SEA
- STT
1 stop12h 46m
United Airlines
Sat 6/206:05 pm
STT
- SEA
1 stop32h 39m
United Airlines
Deal found 5/21![United Airlines logo]()
$877
This United Airlines deal was found by Cheapflights users on 5/19. 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 11/1311:50 pm
SEA
- STT
2 stops32h 10m
United Airlines
Sun 11/223:05 pm
STT
- SEA
3 stops36h 16m
United Airlines
Deal found 5/19![United Airlines logo]()
$914
Last-minute flights from Seattle to Saint Thomas IslandDiscover last-minute flight deals from Seattle to Saint Thomas Island. Data last updated May 22, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Saint Thomas Island. Data last updated May 22, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 5/21. 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.
Fri 6/511:52 pm
SEA
- STT
2 stops35h 50m
JetBlue
Fri 6/123:30 pm
STT
- SEA
2 stops23h 57m
JetBlue
Deal found 5/21![JetBlue logo]()
$761
This American Airlines deal was found by Cheapflights users on 5/18. 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 6/89:35 pm
SEA
- STT
1 stop10h 28m
American Airlines
Mon 6/151:35 pm
STT
- SEA
1 stop13h 33m
American Airlines
Deal found 5/18![American Airlines logo]()
$717
This United Airlines deal was found by Cheapflights users on 5/20. 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.
Mon 6/811:49 pm
SEA
- STT
1 stop12h 54m
United Airlines
Mon 6/151:22 pm
STT
- SEA
1 stop10h 31m
United Airlines
Deal found 5/20![United Airlines logo]()
$771
This FlightHub deal was found by Cheapflights users on 5/19. 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 6/1111:44 pm
SEA
- STT
1 stop11h 51m
JetBlue
Fri 6/193:18 pm
STT
- SEA
2 stops24h 09m
JetBlue
Deal found 5/19![JetBlue logo]()
$687
This FlightHub deal was found by Cheapflights users on 5/21. 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.
Mon 6/1511:44 pm
SEA
- STT
1 stop11h 19m
JetBlue
Tue 6/232:58 pm
STT
- SEA
2 stops22h 37m
JetBlue
Deal found 5/21![JetBlue logo]()
$668
This American Airlines deal was found by Cheapflights users on 5/20. 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 6/171:00 pm
SEA
- STT
1 stop20h 44m
American Airlines
Wed 6/241:35 pm
STT
- SEA
1 stop13h 33m
American Airlines
Deal found 5/20![American Airlines logo]()
$775
This American Airlines deal was found by Cheapflights users on 5/21. 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 6/1711:03 am
SEA
- STT
2 stops22h 41m
American Airlines
Tue 6/231:35 pm
STT
- SEA
2 stops28h 18m
American Airlines
Deal found 5/21![American Airlines logo]()
$842
One-way flights from Seattle to Saint Thomas IslandSearch for one-way flight options from Seattle to Saint Thomas Island. Find affordable one-way fares based on user searches. Data last updated May 22, 2026.
Search for one-way flight options from Seattle to Saint Thomas Island. Find affordable one-way fares based on user searches. Data last updated May 22, 2026.
This United Airlines deal was found by Cheapflights users on 5/20. 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 7/1011:20 pm
SEA
- STT
1 stop10h 38m
United Airlines
Deal found 5/20![United Airlines logo]()
$252
This United Airlines deal was found by Cheapflights users on 5/20. 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 7/3011:49 pm
SEA
- STT
1 stop12h 54m
United Airlines
Deal found 5/20![United Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 5/20. 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 7/287:50 pm
SEA
- STT
2 stops13h 21m
Delta
Deal found 5/20![Delta logo]()
$290
This Delta deal was found by Cheapflights users on 5/19. 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.
Fri 7/106:05 pm
SEA
- STT
2 stops18h 15m
Delta
Deal found 5/19![Delta logo]()
$296
This Southwest deal was found by Cheapflights users on 5/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/107:30 pm
SEA
- STT
2 stops14h 25m
Southwest
Deal found 5/19![Southwest logo]()
$314
This Southwest deal was found by Cheapflights users on 5/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:40 pm
SEA
- STT
2 stops15h 20m
Southwest
Deal found 5/18![Southwest logo]()
$330
This American Airlines deal was found by Cheapflights users on 5/20. 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 10/1411:10 pm
SEA
- STT
1 stop10h 30m
American Airlines
Deal found 5/20![American Airlines logo]()
$335
This American Airlines deal was found by Cheapflights users on 5/20. 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 10/1211:10 pm
SEA
- STT
1 stop12h 25m
American Airlines
Deal found 5/20![American Airlines logo]()
$350
This American Airlines deal was found by Cheapflights users on 5/20. 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 10/1511:58 am
SEA
- STT
2 stops23h 37m
American Airlines
Deal found 5/20![American Airlines logo]()
$356
This United Airlines deal was found by Cheapflights users on 5/20. 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 10/1611:59 pm
SEA
- STT
1 stop12h 44m
United Airlines
Deal found 5/20![United Airlines logo]()
$375
This American Airlines deal was found by Cheapflights users on 5/20. 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 8/17:00 am
SEA
- STT
2 stops30h 00m
American Airlines
Deal found 5/20![American Airlines logo]()
$396
Find flight deals from Seattle to Saint Thomas Island
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Saint Thomas Island (STT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $534 (United Airlines) |
One-way from | $252 (United Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $777 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Saint Thomas Island 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 May 22, 2026.
Use the filters below to find and compare flights from Seattle to Saint Thomas Island that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleSaint Thomas Island
SEA - STT
SEASTT
Seattle/Tacoma Intl
Mon 11/9
4:30 pm-1:12 pm
2 stops16h 42m
Saint Thomas Island Cyril E King
Wed 11/18
1:02 pm-8:10 pm
1 stop11h 08m
$534
SeattleSaint Thomas Island
SEA - STT
SEASTT
Seattle/Tacoma Intl
Mon 11/9
10:08 pm-4:55 pm
1 stop14h 47m
Saint Thomas Island Cyril E King
Wed 11/18
4:18 pm-11:40 pm
1 stop11h 22m
$584
Quickest round-trip
SeattleSaint Thomas Island
SEA - STT
SEASTT
Seattle/Tacoma Intl
Sat 10/31
11:59 pm-2:30 pm
1 stop11h 31m
Saint Thomas Island Cyril E King
Fri 11/6
1:02 pm-8:10 pm
1 stop11h 08m
$602
SeattleSaint Thomas Island
SEA - STT
SEASTT
Seattle/Tacoma Intl
Sun 11/15
5:30 pm-1:12 pm
2 stops15h 42m
Saint Thomas Island Cyril E King
Sun 11/22
3:05 pm-12:14 am
1 stop13h 09m
$611
SeattleSaint Thomas Island
SEA - STT
SEASTT
Seattle/Tacoma Intl
Thu 11/12
12:59 am-4:55 pm
2 stops11h 56m
Saint Thomas Island Cyril E King
Sun 11/22
6:17 pm-9:45 am
2 stops19h 28m
$717
SeattleSaint Thomas Island
SEA - STT
SEASTT
Seattle/Tacoma Intl
Tue 7/7
5:59 pm-12:11 pm
2 stops15h 12m
Saint Thomas Island Cyril E King
Fri 7/17
1:21 pm-11:59 pm
1 stop13h 38m
$832
SeattleSaint Thomas Island
SEA - STT
SEASTT
Seattle/Tacoma Intl
Tue 7/7
1:30 pm-12:20 pm
2 stops19h 50m
Saint Thomas Island Cyril E King
Wed 7/22
1:22 pm-9:18 pm
1 stop10h 56m
$864
SeattleSaint Thomas Island
SEA - STT
SEASTT
Seattle/Tacoma Intl
Fri 6/12
11:57 pm-3:43 pm
1 stop12h 46m
Saint Thomas Island Cyril E King
Sat 6/20
6:05 pm-11:44 pm
1 stop32h 39m
$877
SeattleSaint Thomas Island
SEA - STT
SEASTT
Seattle/Tacoma Intl
Fri 11/13
11:50 pm-12:00 pm
2 stops32h 10m
Saint Thomas Island Cyril E King
Sun 11/22
3:05 pm-11:21 pm
3 stops36h 16m
$914
Cheapest one-way
SeattleSaint Thomas Island
SEA - STT
SEASTT
Seattle/Tacoma Intl
Fri 7/10
11:20 pm-12:58 pm
1 stop10h 38m
$252
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from Seattle to Saint Thomas Island
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Saint Thomas Island in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Saint Thomas Island flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Saint Thomas Island flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Saint Thomas Island flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Saint Thomas Island flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Saint Thomas Island flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Saint Thomas Island
Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from Seattle with our price prediction graph.
SEA-STT
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 Thomas Island
How far ahead should I book a flight from Seattle to Saint Thomas Island?
Booking 21 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Saint Thomas Island. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Seattle to Saint Thomas Island?
Currently, January is the cheapest month in which you can book a flight from Seattle to Saint Thomas Island (average of $538). Flying from Seattle to Saint Thomas Island in December is currently the most expensive (average of $822). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Seattle to Saint Thomas Island?
Reviews of airlines servicing Saint Thomas Island
Get insights into the airlines that provide service to Saint Thomas Island. 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 Thomas Island. Reviews last updated May 22, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Seattle to Saint Thomas Island have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.9
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.9
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.9
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$315 | Average$812 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$438 | Average$563 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$473 | Average$691 | FlexibilityNo cancel fee | On-time71% |