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Cheap flights from Idaho to Saint Thomas Island from $474

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Saint Thomas Island departing on 9/28. 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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Find the cheapest flights from Idaho to Saint Thomas Island

Cheap round-trip flights

Delta Logo
11:30 pm - 1:55 pmBOI-STT
12h 25m1 stop
Delta Logo
2:00 pm - 10:50 pmSTT-BOI
10h 50m1 stop
$679Delta
Find Deal
Mon, Mar 9 - Wed, Mar 11
Delta Logo
5:00 pm - 11:50 amBOI-STT
16h 50m2 stops
Delta Logo
1:00 pm - 10:50 pmSTT-BOI
11h 50m1 stop
$705Delta
Find Deal
Mon, Mar 9 - Wed, Mar 11
Delta Logo
7:30 pm - 11:50 amBOI-STT
14h 20m2 stops
Delta Logo
1:00 pm - 12:21 amSTT-BOI
13h 21m2 stops
$731Delta
Find Deal
Mon, Mar 9 - Wed, Mar 11
American Airlines Logo
4:40 pm - 12:49 pmBOI-STT
18h 09m2 stops
American Airlines Logo
5:20 pm - 12:43 pmSTT-BOI
21h 23m2 stops
$830American Airlines
Find Deal
Tue, Oct 7 - Sat, Oct 11
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
$834American Airlines
Find Deal
Fri, Feb 20 - Sat, Feb 28
American Airlines Logo
4:11 pm - 12:55 pmJAC-STT
18h 44m2 stops
American Airlines Logo
5:30 pm - 2:10 pmSTT-JAC
22h 40m2 stops
$889American Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
United Airlines Logo
2:31 pm - 2:30 pmBOI-STT
20h 59m2 stops
United Airlines Logo
1:02 pm - 1:39 pmSTT-BOI
27h 37m2 stops
$1,039United Airlines
Find Deal
Sat, Nov 22 - Wed, Dec 3
United Airlines Logo
2:31 pm - 2:30 pmBOI-STT
20h 59m2 stops
United Airlines Logo
1:02 pm - 4:03 pmSTT-BOI
30h 01m2 stops
$1,063United Airlines
Find Deal
Sat, Nov 22 - Wed, Dec 3
Multiple Airlines Logo
6:15 am - 12:00 pmBOI-STT
26h 45m2 stops
Multiple Airlines Logo
3:34 pm - 9:16 pmSTT-BOI
32h 42m2 stops
$1,213Multiple Airlines
Find Deal
Thu, Nov 20 - Wed, Dec 3
Multiple Airlines Logo
2:31 pm - 2:30 pmBOI-STT
20h 59m2 stops
Multiple Airlines Logo
5:28 pm - 9:16 pmSTT-BOI
30h 48m2 stops
$1,219Multiple Airlines
Find Deal
Fri, Nov 21 - Wed, Dec 3

Delta flights from Idaho to Saint Thomas Island

Our best Delta deals on Idaho to Saint Thomas Island flight tickets
Delta
Mar 9
BOI11:30 pmBoise Air Term. Gowen Fld
12h 25m
1 stop
STT1:55 pmSaint Thomas Island Cyril E King
Mar 11
STT2:00 pmSaint Thomas Island Cyril E King
10h 50m
1 stop
BOI10:50 pmBoise Air Term. Gowen Fld
$679
Find similar
Delta
Mar 9
BOI5:00 pmBoise Air Term. Gowen Fld
16h 50m
2 stops
STT11:50 amSaint Thomas Island Cyril E King
Mar 11
STT1:00 pmSaint Thomas Island Cyril E King
11h 50m
1 stop
BOI10:50 pmBoise Air Term. Gowen Fld
$705
Find similar
Delta
Mar 9
BOI7:30 pmBoise Air Term. Gowen Fld
14h 20m
2 stops
STT11:50 amSaint Thomas Island Cyril E King
Mar 11
STT1:00 pmSaint Thomas Island Cyril E King
13h 21m
2 stops
BOI12:21 amBoise Air Term. Gowen Fld
$731
Find similar

United Airlines flights from Idaho to Saint Thomas Island

Our best United Airlines deals on Idaho to Saint Thomas Island flight tickets
United Airlines
Nov 22
BOI2:31 pmBoise Air Term. Gowen Fld
20h 59m
2 stops
STT2:30 pmSaint Thomas Island Cyril E King
Dec 3
STT1:02 pmSaint Thomas Island Cyril E King
27h 37m
2 stops
BOI1:39 pmBoise Air Term. Gowen Fld
$1,039
Find similar
United Airlines
Nov 22
BOI2:31 pmBoise Air Term. Gowen Fld
20h 59m
2 stops
STT2:30 pmSaint Thomas Island Cyril E King
Dec 3
STT1:02 pmSaint Thomas Island Cyril E King
30h 01m
2 stops
BOI4:03 pmBoise Air Term. Gowen Fld
$1,063
Find similar
United Airlines
Mar 10
JAC4:25 pmJackson Hole
18h 31m
3 stops
STT12:56 pmSaint Thomas Island Cyril E King
Mar 11
STT4:25 pmSaint Thomas Island Cyril E King
20h 57m
2 stops
JAC11:22 amJackson Hole
$1,078
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 23, 2025.
Use the filters below to find and compare flights from Idaho 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 3/9

11:30 pm-1:55 pm

1 stop12h 25m

Saint Thomas Island Cyril E King

Wed 3/11

2:00 pm-10:50 pm

1 stop10h 50m

$679

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Mon 3/9

5:00 pm-11:50 am

2 stops16h 50m

Saint Thomas Island Cyril E King

Wed 3/11

1:00 pm-10:50 pm

1 stop11h 50m

$705

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Mon 3/9

7:30 pm-11:50 am

2 stops14h 20m

Saint Thomas Island Cyril E King

Wed 3/11

1:00 pm-12:21 am

2 stops13h 21m

$731

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Tue 10/7

4:40 pm-12:49 pm

2 stops18h 09m

Saint Thomas Island Cyril E King

Sat 10/11

5:20 pm-12:43 pm

2 stops21h 23m

$830

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

$834

JacksonSaint Thomas Island

JAC - STT

JACSTT

Jackson Hole

Tue 3/10

4:11 pm-12:55 pm

2 stops18h 44m

Saint Thomas Island Cyril E King

Wed 3/11

5:30 pm-2:10 pm

2 stops22h 40m

$889

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Sat 11/22

2:31 pm-2:30 pm

2 stops20h 59m

Saint Thomas Island Cyril E King

Wed 12/3

1:02 pm-1:39 pm

2 stops27h 37m

$1,039

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Sat 11/22

2:31 pm-2:30 pm

2 stops20h 59m

Saint Thomas Island Cyril E King

Wed 12/3

1:02 pm-4:03 pm

2 stops30h 01m

$1,063

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Thu 11/20

6:15 am-12:00 pm

2 stops26h 45m

Saint Thomas Island Cyril E King

Wed 12/3

3:34 pm-9:16 pm

2 stops32h 42m

$1,213

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Fri 11/21

2:31 pm-2:30 pm

2 stops20h 59m

Saint Thomas Island Cyril E King

Wed 12/3

5:28 pm-9:16 pm

2 stops30h 48m

$1,219

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 Idaho 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 November is another great option to travel to Saint Thomas Island, with average flight prices from Idaho averaging around $712.

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 Idaho 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 Idaho 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.

Cheap Idaho to Saint Thomas Island flight deals and tips

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

Direct flights

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

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

    Prices for flights from Idaho to Saint Thomas Island Cyril E King Airport are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Idaho 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 required travel and health documents for your Saint Thomas Island Cyril E King Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Saint Thomas Island Cyril E King Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Idaho to Saint Thomas Island

Compare and see reviews for airlines that fly from Idaho to Saint Thomas Island with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $577Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $625Free CancellationRating
7.9
7,974 reviews
Search Delta 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 Idaho to Saint Thomas Island?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Idaho to Saint Thomas Island. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Saint Thomas Island from Idaho which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Saint Thomas Island from Idaho. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Idaho to Saint Thomas Island now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Saint Thomas Island and let you know when they change.

An easier way to manage your Saint Thomas Island trip

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