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Cheap flights from Washington to Saint Thomas Island from $235

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Saint Thomas Island departing on 1/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
4:55 pm - 12:50 pmSEA-STT
15h 55m2 stops
Delta Logo
3:00 pm - 11:12 pmSTT-SEA
12h 12m1 stop
$473Delta
Find Deal
Wed, Feb 18 - Thu, Feb 26
United Airlines Logo
7:10 pm - 12:00 pmSEA-STT
12h 50m2 stops
United Airlines Logo
1:02 pm - 12:59 amSTT-SEA
15h 57m2 stops
$497United Airlines
Find Deal
Thu, Feb 19 - Thu, Feb 26
American Airlines Logo
6:26 pm - 12:21 pmSEA-STT
13h 55m2 stops
American Airlines Logo
1:16 pm - 11:42 pmSTT-SEA
14h 26m1 stop
$511American Airlines
Find Deal
Wed, Feb 25 - Tue, Mar 3
American Airlines Logo
12:38 am - 4:58 pmSEA-STT
12h 20m2 stops
American Airlines Logo
4:16 pm - 11:16 pmSTT-SEA
11h 00m1 stop
$534American Airlines
Find Deal
Wed, Dec 10 - Wed, Dec 17
Delta Logo
4:55 pm - 12:50 pmSEA-STT
15h 55m2 stops
Delta Logo
3:00 pm - 11:12 pmSTT-SEA
12h 12m1 stop
$541Delta
Find Deal
Wed, Feb 18 - Wed, Feb 25
American Airlines Logo
12:59 am - 5:30 pmSEA-STT
12h 31m2 stops
American Airlines Logo
1:16 pm - 11:42 pmSTT-SEA
14h 26m1 stop
$549American Airlines
Find Deal
Tue, Feb 24 - Tue, Mar 3
Southwest Logo
5:10 pm - 2:00 pmPDX-STT
16h 50m2 stops
Southwest Logo
1:50 pm - 12:45 amSTT-PDX
13h 55m2 stops
$655Southwest
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Thu, Mar 5 - Thu, Mar 12
Multiple Airlines Logo
7:33 pm - 2:30 pmSEA-STT
14h 57m2 stops
Multiple Airlines Logo
5:28 pm - 11:14 amSTT-SEA
21h 46m2 stops
$679Multiple Airlines
Find Deal
Fri, Feb 20 - Fri, Feb 27
Multiple Airlines Logo
11:59 pm - 3:35 pmSEA-STT
11h 36m1 stop
Multiple Airlines Logo
4:06 pm - 12:30 pmSTT-SEA
24h 24m2 stops
$691Multiple Airlines
Find Deal
Fri, Dec 26 - Thu, Jan 8
Southwest Logo
2:15 pm - 2:55 pmSEA-STT
20h 40m2 stops
Southwest Logo
2:50 pm - 12:15 amSTT-SEA
13h 25m2 stops
$741Southwest
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Fri, Feb 27 - Sat, Mar 7

American Airlines flights from State of Washington to Saint Thomas Island

Our best American Airlines deals on State of Washington to Saint Thomas Island flight tickets
American Airlines
Feb 25
SEA6:26 pmSeattle/Tacoma Intl
13h 55m
2 stops
STT12:21 pmSaint Thomas Island Cyril E King
Mar 3
STT1:16 pmSaint Thomas Island Cyril E King
14h 26m
1 stop
SEA11:42 pmSeattle/Tacoma Intl
$511
Find similar
American Airlines
Dec 10
SEA12:38 amSeattle/Tacoma Intl
12h 20m
2 stops
STT4:58 pmSaint Thomas Island Cyril E King
Dec 17
STT4:16 pmSaint Thomas Island Cyril E King
11h 00m
1 stop
SEA11:16 pmSeattle/Tacoma Intl
$534
Find similar
American Airlines
Feb 24
SEA12:59 amSeattle/Tacoma Intl
12h 31m
2 stops
STT5:30 pmSaint Thomas Island Cyril E King
Mar 3
STT1:16 pmSaint Thomas Island Cyril E King
14h 26m
1 stop
SEA11:42 pmSeattle/Tacoma Intl
$549
Find similar

United Airlines flights from State of Washington to Saint Thomas Island

Our best United Airlines deals on State of Washington to Saint Thomas Island flight tickets
United Airlines
Feb 19
SEA7:10 pmSeattle/Tacoma Intl
12h 50m
2 stops
STT12:00 pmSaint Thomas Island Cyril E King
Feb 26
STT1:02 pmSaint Thomas Island Cyril E King
15h 57m
2 stops
SEA12:59 amSeattle/Tacoma Intl
$497
Find similar
United Airlines
Jan 30
SEA7:30 pmSeattle/Tacoma Intl
15h 00m
2 stops
STT2:30 pmSaint Thomas Island Cyril E King
Feb 4
STT1:02 pmSaint Thomas Island Cyril E King
11h 55m
1 stop
SEA8:57 pmSeattle/Tacoma Intl
$563
Find similar
United Airlines
Feb 20
SEA6:04 pmSeattle/Tacoma Intl
16h 26m
2 stops
STT2:30 pmSaint Thomas Island Cyril E King
Feb 26
STT1:02 pmSaint Thomas Island Cyril E King
11h 54m
1 stop
SEA8:56 pmSeattle/Tacoma Intl
$601
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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, momondo users made 832,500 searches. Data last updated November 5, 2025.
Use the filters below to find and compare flights from Washington to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Wed 2/18

4:55 pm-12:50 pm

2 stops15h 55m

Saint Thomas Island Cyril E King

Thu 2/26

3:00 pm-11:12 pm

1 stop12h 12m

$473

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Thu 2/19

7:10 pm-12:00 pm

2 stops12h 50m

Saint Thomas Island Cyril E King

Thu 2/26

1:02 pm-12:59 am

2 stops15h 57m

$497

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Wed 2/25

6:26 pm-12:21 pm

2 stops13h 55m

Saint Thomas Island Cyril E King

Tue 3/3

1:16 pm-11:42 pm

1 stop14h 26m

$511

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Wed 12/10

12:38 am-4:58 pm

2 stops12h 20m

Saint Thomas Island Cyril E King

Wed 12/17

4:16 pm-11:16 pm

1 stop11h 00m

$534

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Wed 2/18

4:55 pm-12:50 pm

2 stops15h 55m

Saint Thomas Island Cyril E King

Wed 2/25

3:00 pm-11:12 pm

1 stop12h 12m

$541

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Tue 2/24

12:59 am-5:30 pm

2 stops12h 31m

Saint Thomas Island Cyril E King

Tue 3/3

1:16 pm-11:42 pm

1 stop14h 26m

$549

PortlandSaint Thomas Island

PDX - STT

PDXSTT

Portland

Thu 3/5

5:10 pm-2:00 pm

2 stops16h 50m

Saint Thomas Island Cyril E King

Thu 3/12

1:50 pm-12:45 am

2 stops13h 55m

$655

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Fri 2/20

7:33 pm-2:30 pm

2 stops14h 57m

Saint Thomas Island Cyril E King

Fri 2/27

5:28 pm-11:14 am

2 stops21h 46m

$679

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Fri 12/26

11:59 pm-3:35 pm

1 stop11h 36m

Saint Thomas Island Cyril E King

Thu 1/8

4:06 pm-12:30 pm

2 stops24h 24m

$691

SeattleSaint Thomas Island

SEA - STT

SEASTT

Seattle/Tacoma Intl

Fri 2/27

2:15 pm-2:55 pm

2 stops20h 40m

Saint Thomas Island Cyril E King

Sat 3/7

2:50 pm-12:15 am

2 stops13h 25m

$741

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from State of Washington to Saint Thomas Island

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Saint Thomas Island?

The month of January is another great option to travel to Saint Thomas Island, with average flight prices from State of Washington averaging around $554.

What is the cheapest day to depart on your flight to Saint Thomas Island?

On average, the least expensive day to fly to Saint Thomas Island from State of Washington is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $598. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from State of Washington to Saint Thomas Island for around $880.

What is the cheapest time of day to depart on your flight to Saint Thomas Island?

The cheapest time of day to fly to Saint Thomas Island is in the afternoon when flights can be purchased for as low as $379. Flights to Saint Thomas Island are more costly in the evening, with an average ticket price of $775. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Saint Thomas Island?

You are more likely to see cheaper flights to Saint Thomas Island from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Saint Thomas Island for around $660 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Saint Thomas Island from State of Washington for as low as $573 on momondo.

Can stopping save me money on State of Washington to Saint Thomas Island flights?

You could potentially save up to 19% on your flight if you consider stops on a State of Washington to Saint Thomas Island flight.

Cheap State of Washington to Saint Thomas Island flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Saint Thomas Island

Direct flights

None
There are no direct flights from State of Washington to Saint Thomas Island. There are no popular flight routes from State of Washington to Saint Thomas Island.
Search flight deals

  • When did momondo last update prices for flights from Washington to Saint Thomas Island Cyril E King Airport?

    Prices for flights from Washington to Saint Thomas Island Cyril E King Airport are updated daily.

  • How many operators does momondo search for flights from Washington to Saint Thomas Island Cyril E King Airport?

  • How old do you have to be to fly from Washington to Saint Thomas Island Cyril E King Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Saint Thomas Island Cyril E King Airport.

  • What documentation or ID do you need to fly to Saint Thomas Island Cyril E King Airport?

    The travel and health documents required for your trip to Saint Thomas Island Cyril E King Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Saint Thomas Island Cyril E King Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from State of Washington to Saint Thomas Island

Compare and see reviews for airlines that fly from State of Washington to Saint Thomas Island with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $280Free CancellationRating
7.9
8,004 reviews
Search Delta flights
American AirlinesPriceFrom $443Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights
United AirlinesPriceFrom $492Free CancellationRating
7.4
9,002 reviews
Search United Airlines flights

Traveling to a place near Saint Thomas Island?

Book flights to Saint Thomas Island if you plan to visit one of these locations
St. John

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Saint Thomas Island?

It is quick and easy to find Washington to Saint Thomas Island flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Saint Thomas Island that suits you.

Can I find flights from Washington to Saint Thomas Island with flexible booking policies on momondo?

All flight searches from Washington to Saint Thomas Island on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington to Saint Thomas Island?

Once all potential Washington to Saint Thomas Island flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington to Saint Thomas Island right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Saint Thomas Island, momondo offers a useful price alert feature which will track prices for flights to Saint Thomas Island from Washington and alert you when they change.

An easier way to manage your Saint Thomas Island trip

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