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Cheap flights from Idaho to Saint Thomas Island from $609

This is the cheapest round-trip 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 1/21. 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 Idaho to Saint Thomas Island

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:05 pm - 12:00 pmBOI-STT
13h 55m2 stops
United Airlines Logo
1:02 pm - 10:57 pmSTT-BOI
12h 55m2 stops
$609United Airlines
Find Deal
Wed, Jan 21 - Wed, Jan 28
Delta Logo
11:30 pm - 3:16 pmBOI-STT
13h 46m1 stop
Delta Logo
1:15 pm - 10:38 pmSTT-BOI
11h 23m1 stop
$624Delta
Find Deal
Fri, Apr 17 - Thu, Apr 23
Delta Logo
11:30 pm - 11:50 amBOI-STT
10h 20m1 stop
Delta Logo
1:00 pm - 10:50 pmSTT-BOI
11h 50m1 stop
$679Delta
Find Deal
Mon, Mar 9 - Wed, Mar 11
Delta Logo
11:30 pm - 3:16 pmBOI-STT
13h 46m1 stop
Delta Logo
1:15 pm - 12:11 amSTT-BOI
12h 56m2 stops
$685Delta
Find Deal
Fri, Apr 17 - Thu, Apr 23
American Airlines Logo
5:14 pm - 12:55 pmBOI-STT
17h 41m2 stops
American Airlines Logo
3:30 pm - 1:24 pmSTT-BOI
23h 54m2 stops
$749American Airlines
Find Deal
Mon, Mar 9 - Wed, Mar 11
Delta Logo
11:30 pm - 3:16 pmBOI-STT
13h 46m1 stop
Delta Logo
1:15 pm - 12:11 amSTT-BOI
12h 56m2 stops
$802Delta
Find Deal
Fri, Apr 17 - Thu, Apr 23
American Airlines Logo
2:38 pm - 11:43 amBOI-STT
18h 05m2 stops
American Airlines Logo
5:29 pm - 1:06 pmSTT-BOI
22h 37m2 stops
$815American Airlines
Find Deal
Sat, Nov 22 - Wed, Dec 3
American Airlines Logo
5:15 pm - 11:10 amBOI-STT
15h 55m2 stops
American Airlines Logo
5:10 pm - 12:31 pmSTT-BOI
21h 21m2 stops
$834American Airlines
Find Deal
Fri, Apr 17 - Thu, Apr 23
American Airlines Logo
2:38 pm - 11:43 amBOI-STT
18h 05m2 stops
American Airlines Logo
6:17 pm - 1:06 pmSTT-BOI
21h 49m2 stops
$844American Airlines
Find Deal
Sat, Nov 22 - Wed, Dec 3
Multiple Airlines Logo
7:05 pm - 1:56 pmBOI-STT
15h 51m2 stops
Multiple Airlines Logo
3:34 pm - 7:51 pmSTT-BOI
55h 17m3 stops
$939Multiple Airlines
Find Deal
Wed, Jan 21 - Wed, Jan 28

United Airlines flights from Idaho to Saint Thomas Island

Our best United Airlines deals on Idaho to Saint Thomas Island flight tickets
United Airlines
Jan 21
BOI7:05 pmBoise Air Term. Gowen Fld
13h 55m
2 stops
STT12:00 pmSaint Thomas Island Cyril E King
Jan 28
STT1:02 pmSaint Thomas Island Cyril E King
12h 55m
2 stops
BOI10:57 pmBoise Air Term. Gowen Fld
$609
Find similar
United Airlines
Dec 7
BOI7:11 pmBoise Air Term. Gowen Fld
15h 01m
2 stops
STT1:12 pmSaint Thomas Island Cyril E King
Dec 14
STT3:05 pmSaint Thomas Island Cyril E King
10h 40m
1 stop
BOI10:45 pmBoise Air Term. Gowen Fld
$955
Find similar
United Airlines
Jan 29
BOI9:48 amBoise Air Term. Gowen Fld
25h 08m
2 stops
STT1:56 pmSaint Thomas Island Cyril E King
Feb 11
STT1:02 pmSaint Thomas Island Cyril E King
35h 30m
2 stops
BOI9:32 pmBoise Air Term. Gowen Fld
$1,125
Find similar

Delta flights from Idaho to Saint Thomas Island

Our best Delta deals on Idaho to Saint Thomas Island flight tickets
Delta
Apr 17
BOI11:30 pmBoise Air Term. Gowen Fld
13h 46m
1 stop
STT3:16 pmSaint Thomas Island Cyril E King
Apr 23
STT1:15 pmSaint Thomas Island Cyril E King
11h 23m
1 stop
BOI10:38 pmBoise Air Term. Gowen Fld
$624
Find similar
Delta
Mar 9
BOI11:30 pmBoise Air Term. Gowen Fld
10h 20m
1 stop
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
$679
Find similar
Delta
Apr 17
BOI11:30 pmBoise Air Term. Gowen Fld
13h 46m
1 stop
STT3:16 pmSaint Thomas Island Cyril E King
Apr 23
STT1:15 pmSaint Thomas Island Cyril E King
12h 56m
2 stops
BOI12:11 amBoise Air Term. Gowen Fld
$685
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 November 10, 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

Wed 1/21

7:05 pm-12:00 pm

2 stops13h 55m

Saint Thomas Island Cyril E King

Wed 1/28

1:02 pm-10:57 pm

2 stops12h 55m

$609

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

$624

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Mon 3/9

11:30 pm-11:50 am

1 stop10h 20m

Saint Thomas Island Cyril E King

Wed 3/11

1:00 pm-10:50 pm

1 stop11h 50m

$679

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-12:11 am

2 stops12h 56m

$685

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Mon 3/9

5:14 pm-12:55 pm

2 stops17h 41m

Saint Thomas Island Cyril E King

Wed 3/11

3:30 pm-1:24 pm

2 stops23h 54m

$749

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-12:11 am

2 stops12h 56m

$802

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Sat 11/22

2:38 pm-11:43 am

2 stops18h 05m

Saint Thomas Island Cyril E King

Wed 12/3

5:29 pm-1:06 pm

2 stops22h 37m

$815

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-12:31 pm

2 stops21h 21m

$834

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Sat 11/22

2:38 pm-11:43 am

2 stops18h 05m

Saint Thomas Island Cyril E King

Wed 12/3

6:17 pm-1:06 pm

2 stops21h 49m

$844

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Wed 1/21

7:05 pm-1:56 pm

2 stops15h 51m

Saint Thomas Island Cyril E King

Wed 1/28

3:34 pm-7:51 pm

3 stops55h 17m

$939

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 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 August is another great option to travel to Saint Thomas Island, with average flight prices from Idaho averaging around $679.

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 $609Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
DeltaPriceFrom $625Free CancellationRating
7.9
8,007 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.

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