$278+ Cheap flights from Seattle (SEA) to Saint Thomas Island (STT)
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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — STT
Nov 1 — Nov 81
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Saint Thomas Island with Cheapflights
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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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Best
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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 October 2, 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 October 2, 2026.
This American Airlines deal was found by Cheapflights users on 9/30. 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.
Tue 12/16:17 pm -
2 stops15h 05m
Tue 12/151:07 pm -
1 stop15h 52m
Deal found 9/30![American Airlines logo]()
$514
This American Airlines deal was found by Cheapflights users on 9/30. 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.
Sun 11/159:14 pm -
1 stop14h 49m
Mon 11/232:21 pm -
2 stops14h 21m
Deal found 9/30![American Airlines logo]()
$534
This American Airlines deal was found by Cheapflights users on 9/30. 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 11/1612:25 am -
2 stops11h 38m
Mon 11/232:21 pm -
2 stops14h 21m
Deal found 9/30![American Airlines logo]()
$554
This American Airlines deal was found by Cheapflights users on 9/30. 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 11/169:14 pm -
1 stop14h 49m
Fri 11/204:53 pm -
1 stop11h 06m
Deal found 9/30![American Airlines logo]()
$560
This United Airlines deal was found by Cheapflights users on 9/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:23 pm -
2 stops16h 33m
Sun 11/221:07 pm -
1 stop11h 49m
Deal found 9/28![United Airlines logo]()
$564
This United Airlines deal was found by Cheapflights users on 9/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2612:20 pm -
3 stops19h 45m
Wed 11/41:07 pm -
1 stop11h 49m
Deal found 9/28![United Airlines logo]()
$614
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 October 2, 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 October 2, 2026.
This United Airlines deal was found by Cheapflights users on 10/2. 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.
Mon 2/15:28 pm -
2 stops16h 28m
Fri 2/53:00 pm -
1 stop11h 45m
Deal found 10/2![United Airlines logo]()
$660
This United Airlines deal was found by Cheapflights users on 10/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:20 pm -
3 stops21h 36m
Sun 11/13:35 pm -
1 stop11h 18m
Deal found 10/1![United Airlines logo]()
$660
Last-minute flights from Seattle to Saint Thomas IslandDiscover last-minute flight deals from Seattle to Saint Thomas Island. Data last updated October 2, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Saint Thomas Island. Data last updated October 2, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2612:20 pm -
3 stops19h 45m
Wed 11/41:07 pm -
1 stop11h 49m
Deal found 9/28![United Airlines logo]()
$614
This American Airlines deal was found by Cheapflights users on 9/30. 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.
Sun 11/159:14 pm -
1 stop14h 49m
Mon 11/232:21 pm -
2 stops14h 21m
Deal found 9/30![American Airlines logo]()
$534
This United Airlines deal was found by Cheapflights users on 9/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:23 pm -
2 stops16h 33m
Sun 11/221:07 pm -
1 stop11h 49m
Deal found 9/28![United Airlines logo]()
$564
This Southwest deal was found by Cheapflights users on 9/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/162:05 pm -
2 stops20h 25m
Fri 11/203:45 pm -
2 stops22h 55m
Deal found 9/30![Southwest logo]()
$514
This American Airlines deal was found by Cheapflights users on 9/30. 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 11/1612:25 am -
2 stops11h 38m
Mon 11/232:21 pm -
2 stops14h 21m
Deal found 9/30![American Airlines logo]()
$554
This American Airlines deal was found by Cheapflights users on 9/30. 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 11/169:14 pm -
1 stop14h 49m
Fri 11/204:53 pm -
1 stop11h 06m
Deal found 9/30![American Airlines logo]()
$560
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 October 2, 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 October 2, 2026.
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Sat 10/317:27 pm -
2 stops16h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![United Airlines logo]()
$278
This American Airlines deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/129:14 pm -
1 stop11h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![American Airlines logo]()
$322
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Wed 10/2812:20 pm -
3 stops19h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![United Airlines logo]()
$328
This Kiwi.com deal was found by Cheapflights users on 9/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/14:29 pm -
3 stops41h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Multiple Airlines logo]()
$333
This American Airlines deal was found by Cheapflights users on 9/30. 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.
Sun 11/15:10 am -
2 stops27h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![American Airlines logo]()
$344
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Sun 11/17:04 pm -
2 stops13h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![United Airlines logo]()
$384
This American Airlines deal was found by Cheapflights users on 9/30. 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.
Tue 11/35:10 am -
2 stops29h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![American Airlines logo]()
$388
This American Airlines deal was found by Cheapflights users on 9/30. 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 10/318:50 pm -
1 stop16h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![American Airlines logo]()
$396
This American Airlines deal was found by Cheapflights users on 9/30. 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 12/1911:59 pm -
2 stops11h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![American Airlines logo]()
$422
This Kiwi.com deal was found by Cheapflights users on 10/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/318:09 pm -
3 stops35h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Multiple Airlines logo]()
$436
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:13 pm -
3 stops36h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Multiple Airlines logo]()
$442
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 October 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $514 (American Airlines) |
One-way from | $278 (United Airlines) |
Popular in | November |
Cheapest in | August |
Average price | $586 |
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 7,457,451 searches. Data last updated October 2, 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 Seattle/Tacoma Intl - STT Saint Thomas Island Cyril E King
SEASTT
Seattle/Tacoma Intl
Mon 2/1
7:35 pm-12:40 pm
2 stops13h 05m
Saint Thomas Island Cyril E King
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$278
SeattleSaint Thomas Island
SEA Seattle/Tacoma Intl - STT Saint Thomas Island Cyril E King
SEASTT
Seattle/Tacoma Intl
Sat 12/12
3:28 pm-12:05 pm
2 stops16h 37m
Saint Thomas Island Cyril E King
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$278
SeattleSaint Thomas Island
SEA Seattle/Tacoma Intl - STT Saint Thomas Island Cyril E King
SEASTT
Seattle/Tacoma Intl
Sat 10/31
10:56 pm-2:31 pm
1 stop12h 35m
Saint Thomas Island Cyril E King
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$278
SeattleSaint Thomas Island
SEA Seattle/Tacoma Intl - STT Saint Thomas Island Cyril E King
SEASTT
Seattle/Tacoma Intl
Thu 10/29
12:20 pm-12:56 pm
3 stops21h 36m
Saint Thomas Island Cyril E King
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$328
Quickest round-trip
SeattleSaint Thomas Island
SEA Seattle/Tacoma Intl - STT Saint Thomas Island Cyril E King
SEASTT
Seattle/Tacoma Intl
Fri 10/30
10:56 pm-1:31 pm
1 stop11h 35m
Saint Thomas Island Cyril E King
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$328
SeattleSaint Thomas Island
SEA Seattle/Tacoma Intl - STT Saint Thomas Island Cyril E King
SEASTT
Seattle/Tacoma Intl
Sun 11/1
12:28 pm-1:56 pm
3 stops21h 28m
Saint Thomas Island Cyril E King
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$328
SeattleSaint Thomas Island
SEA Seattle/Tacoma Intl - STT Saint Thomas Island Cyril E King
SEASTT
Seattle/Tacoma Intl
Mon 11/2
4:39 pm-12:05 pm
2 stops15h 26m
Saint Thomas Island Cyril E King
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$328
SeattleSaint Thomas Island
SEA Seattle/Tacoma Intl - STT Saint Thomas Island Cyril E King
SEASTT
Seattle/Tacoma Intl
Mon 2/1
5:28 pm-1:56 pm
2 stops16h 28m
Saint Thomas Island Cyril E King
Fri 2/5
3:00 pm-10:45 pm
1 stop11h 45m
$660
SeattleSaint Thomas Island
SEA Seattle/Tacoma Intl - STT Saint Thomas Island Cyril E King
SEASTT
Seattle/Tacoma Intl
Tue 10/27
12:20 pm-12:56 pm
3 stops21h 36m
Saint Thomas Island Cyril E King
Sun 11/1
3:35 pm-10:53 pm
1 stop11h 18m
$660
Sorted 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 October.
| 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 29 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, August is the cheapest month in which you can book a flight from Seattle to Saint Thomas Island (average of $541). Flying from Seattle to Saint Thomas Island in November is currently the most expensive (average of $935). 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?
Airfare is typical for this route at the moment.
Seattle to Saint Thomas Island flights typically cost between $509 and $807 in December.The cheapest round-trip price found within the last 5 days was $514 on American Airlines (Dec 1-Dec 15).
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 October 2, 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.
Comfort
7.8
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Seattle to Saint Thomas Island. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Saint Thomas Island?
Book flights to Saint Thomas Island if you plan to visit one of these locationsSt. John
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Complete your trip
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Seattle and Saint Thomas Island flights
Browse other Seattle and Saint Thomas Island flight options. Last updated on October 2, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on October 2, 2026.
Popular flight searches
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Other flights to Saint Thomas Island
Explore flights to Saint Thomas Island departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 2, 2026.
Top 3 airlines flying from Seattle to Saint Thomas Island
Discover the top 3 airlines that operate flights from Seattle to Saint Thomas Island. 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 October 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$428 | Average$934 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$438 | Average$563 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$473 | Average$690 | FlexibilityNo cancel fee | On-time71% |