Saint Thomas Island

$609+ Cheap flights from Idaho 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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — STT
Jan 17 — Jan 241
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Cheap flight deals from Idaho to Saint Thomas Island

Cheapest flights from Idaho to Saint Thomas Island
Explore the most affordable flight options available from Idaho to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/17. 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 12/287:00 amBOI - STT
2 stops30h 18mUnited Airlines
Tue 12/303:05 pmSTT - BOI
1 stop10h 54mUnited Airlines
Deal found 12/17$1,099
This American Airlines deal was found by Cheapflights users on 12/16. 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 12/312:18 pmBOI - STT
2 stops19h 22mAmerican Airlines
Sun 1/46:36 pmSTT - BOI
2 stops22h 10mAmerican Airlines
Deal found 12/16$1,485
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Sun 12/281:35 pmBOI - STT
1 stop22h 24mAmerican Airlines
Tue 12/303:39 pmSTT - BOI
1 stop10h 20mAmerican Airlines
Deal found 12/17$1,634

Find flight deals from Idaho to Saint Thomas Island

Keep the following information in mind while searching for Idaho to Saint Thomas Island flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$805
(United Airlines)

Popular in

March

Cheapest in

October

Average price

$774
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Saint Thomas Island Cyril E King flight deals.
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Saint Thomas Island Cyril E King flights.
From Idaho to Saint Thomas Island Cyril E King
Highest demand for flights based on searches. 15% potential increase in price ($157 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($43 potential savings vs. average RT price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho 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 December 18, 2025.
Use the filters below to find and compare flights from Idaho to Saint Thomas Island that are best for you.

Fly from

Idaho

Fly to

Saint Thomas Island

Route

Depart

Return

Price

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Mon 2/9

2:48 pm-1:10 pm

2 stops19h 22m

Saint Thomas Island Cyril E King

Mon 2/16

6:36 pm-11:01 am

2 stops19h 25m

$609

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Mon 2/23

6:55 pm-12:00 pm

2 stops14h 05m

Saint Thomas Island Cyril E King

Thu 2/26

1:02 pm-11:48 pm

2 stops37h 46m

$767

JacksonSaint Thomas Island

JAC - STT

JACSTT

Jackson Hole

Mon 1/12

2:40 pm-1:56 pm

2 stops20h 16m

Saint Thomas Island Cyril E King

Thu 1/15

3:05 pm-11:22 am

1 stop23h 17m

$805

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Sun 2/22

6:55 pm-4:18 pm

2 stops18h 23m

Saint Thomas Island Cyril E King

Thu 2/26

3:05 pm-10:56 pm

1 stop10h 51m

$810

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Fri 4/17

5:15 pm-11:10 am

2 stops15h 55m

Saint Thomas Island Cyril E King

Thu 4/23

5:10 pm-12:08 pm

2 stops20h 58m

$834

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Fri 4/17

11:30 pm-3:16 pm

1 stop13h 46m

Saint Thomas Island Cyril E King

Thu 4/23

1:15 pm-10:38 pm

1 stop11h 23m

$873

JacksonSaint Thomas Island

JAC - STT

JACSTT

Jackson Hole

Mon 1/12

2:40 pm-1:56 pm

2 stops20h 16m

Saint Thomas Island Cyril E King

Wed 1/14

3:05 pm-1:00 pm

2 stops24h 55m

$1,002

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Best time to book a flight from Idaho to Saint Thomas Island

Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from Idaho with our price prediction graph.
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 Idaho to Saint Thomas Island

What is the cheapest month to book a flight from Idaho to Saint Thomas Island?

Currently, April is the cheapest month in which you can book a flight from Idaho to Saint Thomas Island (average of $321). Flying from Idaho to Saint Thomas Island in June is currently the most expensive (average of $1,107). 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.

What is the cheapest time of day to fly from ID to STT?

Find hourly flight availability from Idaho to Saint Thomas Island. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 30% on flights from Idaho to Saint Thomas Island by exploring options for tickets in the morning.

How much does it cost to fly round-trip from Idaho to Saint Thomas Island?

Related info for your journey

Find useful and relevant information for your journey from Idaho 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.
  • What airport do you fly into for flights to Saint Thomas Island from Idaho?

    For a flight from Idaho to Saint Thomas Island, you will be flying into Cyril E King. Saint Thomas Island Cyril E King (STT) is just 2.8 mi from the center of the city.

  • How long is the flight from Idaho to Saint Thomas Island?

    A quick flight from Idaho to Saint Thomas Island can take about 14h 05m. American Airlines provides one of the quickest options available for as low as $767. Airlines will cover a distance of 3429 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Idaho to Saint Thomas Island that include hotel bookings?

    Yes. In addition to deals on Idaho to Saint Thomas Island flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Saint Thomas Island?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Saint Thomas Island.

  • Can I find deals for business class flights from Idaho to Saint Thomas Island?

    Yes. Cheapflights offers flight deals from Idaho to Saint Thomas Island by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Idaho to Saint Thomas Island?

    Currently, April is the cheapest month in which you can book a flight from Idaho to Saint Thomas Island (average of $321). Flying from Idaho to Saint Thomas Island in June is currently the most expensive (average of $1,107). 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.

See more FAQs

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

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Alternative routes for Idaho to Saint Thomas Island

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Idaho to Saint Thomas Island

Discover the top 2 airlines that operate flights from Idaho 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 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$609Average$774FlexibilityNo cancel feeOn-time71%
DeltaCheapest$625Average$936FlexibilityNo cancel feeOn-timeN/A

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