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Cheap flights from Boise to Saint Thomas Island from $654

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to Saint Thomas Island departing on 9/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Boise to Saint Thomas Island (BOI-STT)

Cheap round-trip flights

American Airlines Logo
1:38 pm - 12:50 pmBOI-STT
21h 12m2 stops
American Airlines Logo
5:10 pm - 12:27 pmSTT-BOI
21h 17m2 stops
$654American Airlines
Find Deal
Mon, Sep 22 - Mon, Sep 29
American Airlines Logo
5:20 pm - 12:10 pmBOI-STT
15h 50m2 stops
American Airlines Logo
6:40 pm - 12:04 pmSTT-BOI
20h 24m2 stops
$769American Airlines
Find Deal
Fri, Feb 20 - Sat, Feb 28
American Airlines Logo
1:57 pm - 12:50 pmBOI-STT
20h 53m2 stops
American Airlines Logo
5:10 pm - 12:47 pmSTT-BOI
21h 37m2 stops
$895American Airlines
Find Deal
Tue, Sep 9 - Sat, Sep 13
Spirit Airlines Logo
12:48 pm - 12:28 pmBOI-STT
20h 40m2 stops
Spirit Airlines Logo
1:33 pm - 11:53 amSTT-BOI
25h 20m2 stops
$1,012Spirit Airlines
Find Deal
Sat, Nov 22 - Wed, Dec 3
United Airlines Logo
5:17 pm - 4:18 pmBOI-STT
20h 01m2 stops
United Airlines Logo
2:15 pm - 1:39 pmSTT-BOI
26h 24m2 stops
$1,035United Airlines
Find Deal
Sat, Nov 22 - Wed, Dec 3
American Airlines Logo
5:22 pm - 12:50 pmBOI-STT
17h 28m3 stops
American Airlines Logo
1:40 pm - 12:27 pmSTT-BOI
24h 47m2 stops
$1,041American Airlines
Find Deal
Mon, Sep 22 - Mon, Sep 29
American Airlines Logo
1:20 pm - 2:40 pmBOI-STT
22h 20m1 stop
American Airlines Logo
6:40 pm - 12:22 pmSTT-BOI
20h 42m2 stops
$1,078American Airlines
Find Deal
Fri, Feb 20 - Sat, Feb 28
United Airlines Logo
12:35 pm - 4:18 pmBOI-STT
24h 43m1 stop
United Airlines Logo
2:15 pm - 9:59 amSTT-BOI
22h 44m2 stops
$1,106United Airlines
Find Deal
Sat, Nov 22 - Wed, Dec 3
Spirit Airlines Logo
12:18 pm - 12:28 pmBOI-STT
21h 10m2 stops
Spirit Airlines Logo
4:06 pm - 11:23 amSTT-BOI
46h 17m2 stops
$1,262Spirit Airlines
Find Deal
Fri, Feb 13 - Sat, Feb 21
United Airlines Logo
2:11 pm - 2:30 pmBOI-STT
21h 19m2 stops
United Airlines Logo
3:35 pm - 9:43 amSTT-BOI
21h 08m2 stops
$1,351United Airlines
Find Deal
Fri, Feb 13 - Sat, Feb 21

United Airlines flights from Boise to Saint Thomas Island

Our best United Airlines deals on Boise to Saint Thomas Island flight tickets
United Airlines
Nov 22
BOI5:17 pmBoise Air Term. Gowen Fld
20h 01m
2 stops
STT4:18 pmSaint Thomas Island Cyril E King
Dec 3
STT2:15 pmSaint Thomas Island Cyril E King
26h 24m
2 stops
BOI1:39 pmBoise Air Term. Gowen Fld
$1,035
Find similar
United Airlines
Nov 22
BOI12:35 pmBoise Air Term. Gowen Fld
24h 43m
1 stop
STT4:18 pmSaint Thomas Island Cyril E King
Dec 3
STT2:15 pmSaint Thomas Island Cyril E King
22h 44m
2 stops
BOI9:59 amBoise Air Term. Gowen Fld
$1,106
Find similar
United Airlines
Feb 13
BOI2:11 pmBoise Air Term. Gowen Fld
21h 19m
2 stops
STT2:30 pmSaint Thomas Island Cyril E King
Feb 21
STT3:35 pmSaint Thomas Island Cyril E King
21h 08m
2 stops
BOI9:43 amBoise Air Term. Gowen Fld
$1,351
Find similar

Spirit Airlines flights from Boise to Saint Thomas Island

Our best Spirit Airlines deals on Boise to Saint Thomas Island flight tickets
Spirit Airlines
Nov 22
BOI12:48 pmBoise Air Term. Gowen Fld
20h 40m
2 stops
STT12:28 pmSaint Thomas Island Cyril E King
Dec 3
STT1:33 pmSaint Thomas Island Cyril E King
25h 20m
2 stops
BOI11:53 amBoise Air Term. Gowen Fld
$1,012
Find similar
Spirit Airlines
Feb 13
BOI12:18 pmBoise Air Term. Gowen Fld
21h 10m
2 stops
STT12:28 pmSaint Thomas Island Cyril E King
Feb 21
STT4:06 pmSaint Thomas Island Cyril E King
46h 17m
2 stops
BOI11:23 amBoise Air Term. Gowen Fld
$1,262
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boise 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 August 26, 2025.
Use the filters below to find and compare flights from Boise to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Mon 9/22

1:38 pm-12:50 pm

2 stops21h 12m

Saint Thomas Island Cyril E King

Mon 9/29

5:10 pm-12:27 pm

2 stops21h 17m

$654

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Fri 2/20

5:20 pm-12:10 pm

2 stops15h 50m

Saint Thomas Island Cyril E King

Sat 2/28

6:40 pm-12:04 pm

2 stops20h 24m

$769

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Tue 9/9

1:57 pm-12:50 pm

2 stops20h 53m

Saint Thomas Island Cyril E King

Sat 9/13

5:10 pm-12:47 pm

2 stops21h 37m

$895

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Sat 11/22

12:48 pm-12:28 pm

2 stops20h 40m

Saint Thomas Island Cyril E King

Wed 12/3

1:33 pm-11:53 am

2 stops25h 20m

$1,012

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Sat 11/22

5:17 pm-4:18 pm

2 stops20h 01m

Saint Thomas Island Cyril E King

Wed 12/3

2:15 pm-1:39 pm

2 stops26h 24m

$1,035

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Mon 9/22

5:22 pm-12:50 pm

3 stops17h 28m

Saint Thomas Island Cyril E King

Mon 9/29

1:40 pm-12:27 pm

2 stops24h 47m

$1,041

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Fri 2/20

1:20 pm-2:40 pm

1 stop22h 20m

Saint Thomas Island Cyril E King

Sat 2/28

6:40 pm-12:22 pm

2 stops20h 42m

$1,078

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Sat 11/22

12:35 pm-4:18 pm

1 stop24h 43m

Saint Thomas Island Cyril E King

Wed 12/3

2:15 pm-9:59 am

2 stops22h 44m

$1,106

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Fri 2/13

12:18 pm-12:28 pm

2 stops21h 10m

Saint Thomas Island Cyril E King

Sat 2/21

4:06 pm-11:23 am

2 stops46h 17m

$1,262

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Fri 2/13

2:11 pm-2:30 pm

2 stops21h 19m

Saint Thomas Island Cyril E King

Sat 2/21

3:35 pm-9:43 am

2 stops21h 08m

$1,351

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Saint Thomas Island from

How to get the cheapest flight ticket from Boise 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 October is another great option to travel to Saint Thomas Island, with average flight prices from Boise averaging around $722.

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 Boise is on a Monday. momondo users have found tickets for Monday departures for as low as $607. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Boise to Saint Thomas Island for around $1,065.

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 morning when flights can be purchased for as low as $529. Flights to Saint Thomas Island are more costly in the afternoon, with an average ticket price of $945. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Boise to Saint Thomas Island

Are you open to changing your travel dates? Check out the ideal times to fly from Boise to Saint Thomas Island according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boise to Saint Thomas Island (BOI to STT) flight deals and tips

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

Direct flights

None
There are no direct flights from Boise to Saint Thomas Island. There are no popular flight routes from Boise to Saint Thomas Island.
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  • How far is Boise Air Term. Gowen Fld to Saint Thomas Island Cyril E King by plane?

    The straight-line distance from Boise Air Term. Gowen Fld to Saint Thomas Island Cyril E King is 3430.4 mi. In terms of flight time, this usually takes a little over 15h 50m.

  • When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Saint Thomas Island Cyril E King Airport?

    Prices for flights from Boise Air Term. Gowen Fld Airport to Saint Thomas Island Cyril E King Airport are updated daily.

  • How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to Saint Thomas Island Cyril E King Airport?

  • How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to Saint Thomas Island Cyril E King Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boise Air Term. Gowen Fld Airport 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 necessary travel and health documents for your Saint Thomas Island Cyril E King Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Boise to Saint Thomas Island?

Best airlines flying from Boise to Saint Thomas Island

Compare and see reviews for airlines that fly from Boise to Saint Thomas Island with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $557Free CancellationRating
7.9
7,979 reviews
Search Delta flights
American AirlinesPriceFrom $577Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $667Free CancellationRating
7.4
8,943 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 Boise to Saint Thomas Island?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Boise to Saint Thomas Island. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Boise to Saint Thomas Island with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Boise to Saint Thomas Island.

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

Of course. momondo tracks the price of Boise to Saint Thomas Island flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Saint Thomas Island trip

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