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Saint Thomas Island

$685+ Cheap flights from Boise (BOI) 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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — STT
ago 19 — ago 261
ter 8/19
ter 8/26
1 adult, Economy
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Cheap flight deals from Boise to Saint Thomas Island

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) 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 agosto 14, 2025.

Round-trip from

$685
(United Airlines)

Popular in

March

Cheapest in

November

Average price

$749
From Boise Air Term. Gowen Fld to Saint Thomas Island Cyril E King
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Highest demand for flights based on searches. 13% potential increase in price ($139 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Boise to Saint Thomas Island

Cheapest flights from Boise to Saint Thomas Island
Explore the most affordable flight options available from Boise to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/13. 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.
dom 12/147:11 pmBOI - STT
2 stops13h 49mUnited Airlines
qui 12/183:05 pmSTT - BOI
1 stop10h 54mUnited Airlines
Deal found 8/13$685
This American Airlines deal was found by Cheapflights users on 8/13. 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.
dom 12/145:56 pmBOI - STT
2 stops14h 44mAmerican Airlines
qui 12/184:40 pmSTT - BOI
2 stops22h 49mAmerican Airlines
Deal found 8/13$699
This FlightHub deal was found by Cheapflights users on 8/13. 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.
sáb 11/2212:48 pmBOI - STT
2 stops20h 40mSpirit Airlines
qua 12/31:33 pmSTT - BOI
2 stops25h 20mSpirit Airlines
Deal found 8/13$772
This Trip.com deal was found by Cheapflights users on 8/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 8/2811:22 amBOI - STT
2 stops24h 26mMultiple Airlines
seg 9/14:24 pmSTT - BOI
2 stops33h 35mMultiple Airlines
Deal found 8/13$785
This FlightHub deal was found by Cheapflights users on 8/14. 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.
sex 11/2112:18 pmBOI - STT
2 stops21h 10mSpirit Airlines
qua 12/31:33 pmSTT - BOI
2 stops25h 20mSpirit Airlines
Deal found 8/14$828
This United deal was found by Cheapflights users on 8/14. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 11/202:31 pmBOI - STT
2 stops18h 29mMultiple Airlines
qua 12/34:35 pmSTT - BOI
2 stops31h 41mMultiple Airlines
Deal found 8/14$1,013
This United deal was found by Cheapflights users on 8/14. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 11/2212:35 pmBOI - STT
1 stop24h 43mMultiple Airlines
qua 12/35:45 pmSTT - BOI
2 stops30h 31mMultiple Airlines
Deal found 8/14$1,097
This United Airlines deal was found by Cheapflights users on 8/14. 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.
sáb 11/2212:35 pmBOI - STT
1 stop24h 43mUnited Airlines
qua 12/32:15 pmSTT - BOI
2 stops22h 44mUnited Airlines
Deal found 8/14$1,173
This United deal was found by Cheapflights users on 8/14. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 11/2112:35 pmBOI - STT
1 stop24h 43mMultiple Airlines
qua 12/34:35 pmSTT - BOI
2 stops31h 41mMultiple Airlines
Deal found 8/14$1,206

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated agosto 14, 2025.
Use the filters below to find and compare flights from Boise to Saint Thomas Island that are best for you.

Fly from

Boise

Fly to

Saint Thomas Island

Route

Depart

Return

Price

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

dom 12/14

7:11 pm-12:00 pm

2 stops13h 49m

Saint Thomas Island Cyril E King

qui 12/18

3:05 pm-10:59 pm

1 stop10h 54m

$685

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

dom 12/14

5:56 pm-11:40 am

2 stops14h 44m

Saint Thomas Island Cyril E King

qui 12/18

4:40 pm-12:29 pm

2 stops22h 49m

$699

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

sáb 11/22

12:48 pm-12:28 pm

2 stops20h 40m

Saint Thomas Island Cyril E King

qua 12/3

1:33 pm-11:53 am

2 stops25h 20m

$772

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

qui 8/28

11:22 am-1:48 pm

2 stops24h 26m

Saint Thomas Island Cyril E King

seg 9/1

4:24 pm-11:59 pm

2 stops33h 35m

$785

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

sex 11/21

12:18 pm-12:28 pm

2 stops21h 10m

Saint Thomas Island Cyril E King

qua 12/3

1:33 pm-11:53 am

2 stops25h 20m

$828

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

qui 11/20

2:31 pm-12:00 pm

2 stops18h 29m

Saint Thomas Island Cyril E King

qua 12/3

4:35 pm-9:16 pm

2 stops31h 41m

$1,013

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

sáb 11/22

12:35 pm-4:18 pm

1 stop24h 43m

Saint Thomas Island Cyril E King

qua 12/3

5:45 pm-9:16 pm

2 stops30h 31m

$1,097

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

sáb 11/22

12:35 pm-4:18 pm

1 stop24h 43m

Saint Thomas Island Cyril E King

qua 12/3

2:15 pm-1:39 pm

2 stops26h 24m

$1,173

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

sex 11/21

12:35 pm-4:18 pm

1 stop24h 43m

Saint Thomas Island Cyril E King

qua 12/3

4:35 pm-9:16 pm

2 stops31h 41m

$1,206

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

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

Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from Boise 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 Boise to Saint Thomas Island

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

Currently, September is the cheapest month in which you can book a flight from Boise to Saint Thomas Island (average of $433). Flying from Boise to Saint Thomas Island in June is currently the most expensive (average of $648). 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 BOI to STT?

Find hourly flight availability from Boise 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 agosto 14, 2025.

It’s typically best to fly out from Boise to Saint Thomas Island in the morning. Doing so could potentially save you 45% on the flight price compared to flying at noon, which is usually more expensive.

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 agosto 14, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Boise 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.
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Boise 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 are the cheapest airlines flying from Boise to Saint Thomas Island round-trip?

    Cheapflights users have booked flights from Boise to Saint Thomas Island round-trip from $557. Other airlines that can offer you cheap pricing are American Airlines, from $577, and United Airlines, from $667. Delta is 36% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

  • How can I find direct flights from Boise 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 Boise to Saint Thomas Island.

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

    Yes. Cheapflights offers flight deals from Boise 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 Boise to Saint Thomas Island?

    Currently, September is the cheapest month in which you can book a flight from Boise to Saint Thomas Island (average of $433). Flying from Boise to Saint Thomas Island in June is currently the most expensive (average of $648). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Boise to Saint Thomas Island

See prices for flight routes from nearby airports that may be better suited for you.
Jackson to Saint Thomas Island flights

Top 3 airlines flying from Boise to Saint Thomas Island

Discover the top 3 airlines that operate flights from Boise 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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$557Average$887FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$577Average$811FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$667Average$854FlexibilityNo cancel feeOn-time69%

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