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Caribbean Islands

$166+ Cheap flights from Idaho to Caribbean Islands

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJU
janv. 17 — janv. 241
sam. 1/17
sam. 1/24
1 adult, Economy
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Cheap flight deals from Idaho to Caribbean Islands

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

This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 12/201:47 pmGEG - SJU
2 stops12h 24mUnited Airlines
mar. 3/317:20 amSJU - GEG
2 stops16h 36mUnited Airlines
Deal found 12/16$664
This United Airlines deal was found by Cheapflights users on 12/15. 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.
ven. 12/195:12 pmBOI - NAS
2 stops18h 21mUnited Airlines
dim. 12/213:35 pmNAS - BOI
2 stops20h 26mUnited Airlines
Deal found 12/15$679
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.
sam. 12/2011:59 pmGEG - SJU
1 stop19h 23mAmerican Airlines
mar. 3/316:00 amSJU - GEG
2 stops13h 54mAmerican Airlines
Deal found 12/16$698
This American Airlines deal was found by Cheapflights users on 12/15. 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.
ven. 12/191:39 pmBOI - NAS
1 stop21h 31mAmerican Airlines
dim. 12/213:10 pmNAS - BOI
1 stop8h 52mAmerican Airlines
Deal found 12/15$773
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.
dim. 12/211:47 pmGEG - NAS
2 stops22h 35mUnited Airlines
mar. 12/233:35 pmNAS - GEG
2 stops32h 23mUnited Airlines
Deal found 12/17$792
This Delta deal was found by Cheapflights users on 12/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/234:53 pmGEG - SJU
2 stops17h 21mDelta
mer. 12/314:45 pmSJU - GEG
1 stop10h 31mDelta
Deal found 12/15$845
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 12/258:05 amBOI - SJU
2 stops13h 20mSouthwest
lun. 12/296:35 amSJU - BOI
2 stops13h 25mSouthwest
Deal found 12/17$895
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.
mar. 12/235:05 amGEG - SJU
2 stops15h 31mUnited Airlines
mer. 12/313:46 pmSJU - GEG
2 stops24h 59mUnited Airlines
Deal found 12/17$929
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.
dim. 12/2112:58 pmGEG - NAS
1 stop21h 12mAmerican Airlines
mar. 12/232:00 pmNAS - GEG
1 stop10h 43mAmerican Airlines
Deal found 12/17$978
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 12/259:16 amGEG - PLS
2 stops24h 29mDelta
jeu. 1/13:50 pmPLS - GEG
2 stops20h 18mDelta
Deal found 12/17$980
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.
sam. 12/203:05 pmGEG - MBJ
2 stops15h 58mAmerican Airlines
lun. 12/2211:07 amMBJ - GEG
2 stops15h 06mAmerican Airlines
Deal found 12/17$986
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/3112:40 pmGEG - SJU
2 stops20h 35mSouthwest
ven. 1/25:35 amSJU - GEG
2 stops14h 50mSouthwest
Deal found 12/16$995

Find flight deals from Idaho to Caribbean Islands

Keep the following information in mind while searching for Idaho to Caribbean Islands flight deals. Data was last updated décembre 18, 2025.

Round-trip from

$395
(Southwest)

One-way from

$166
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$618
From Idaho to Caribbean Islands
Search Deals
One-way flight from Idaho to Caribbean Islands
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Caribbean Islands 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 décembre 18, 2025.
Use the filters below to find and compare flights from Idaho to Caribbean Islands that are best for you.

Fly from

Idaho

Fly to

Caribbean Islands

Route

Depart

Return

Price

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

mer. 2/25

5:40 am-11:56 pm

2 stops15h 16m

San Juan Luis Munoz Marin Intl

mer. 3/4

6:15 am-8:55 pm

2 stops17h 40m

$395

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

lun. 1/26

6:10 am-6:25 pm

1 stop9h 15m

San Juan Luis Munoz Marin Intl

mar. 2/3

8:10 am-9:52 pm

2 stops16h 42m

$395

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

lun. 1/26

7:20 am-10:26 pm

1 stop12h 06m

San Juan Luis Munoz Marin Intl

mar. 2/3

6:00 am-1:53 pm

1 stop10h 53m

$431

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

sam. 1/10

1:48 pm-6:11 am

2 stops12h 23m

San Juan Luis Munoz Marin Intl

sam. 1/17

2:05 am-12:46 pm

2 stops14h 41m

$431

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

mer. 3/4

5:51 am-11:32 pm

1 stop13h 41m

San Juan Luis Munoz Marin Intl

mar. 3/10

6:33 am-4:54 pm

1 stop13h 21m

$431

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

sam. 1/17

5:00 am-6:25 pm

1 stop9h 25m

San Juan Luis Munoz Marin Intl

jeu. 1/29

8:35 am-9:22 pm

2 stops16h 47m

$431

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

ven. 2/27

1:55 pm-5:00 am

1 stop11h 05m

San Juan Luis Munoz Marin Intl

ven. 3/6

7:30 am-9:13 pm

1 stop17h 43m

$431

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

mer. 3/4

7:00 am-12:36 am

2 stops13h 36m

San Juan Luis Munoz Marin Intl

mar. 3/10

7:35 am-9:03 pm

2 stops16h 28m

$431

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

mar. 1/27

6:00 am-10:26 pm

1 stop12h 26m

San Juan Luis Munoz Marin Intl

ven. 1/30

7:07 am-6:49 pm

1 stop15h 42m

$431

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

lun. 1/12

7:05 pm-12:55 pm

2 stops14h 50m

San Juan Luis Munoz Marin Intl

mer. 1/21

8:35 am-6:07 pm

2 stops12h 32m

$432

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 60 results
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Best time to book a flight from Idaho to Caribbean Islands

Have a flexible travel schedule? Discover the best time to fly to Caribbean Islands 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 Caribbean Islands

What is the cheapest month to book a flight from Idaho to Caribbean Islands?

Currently, June is the cheapest month in which you can book a flight from Idaho to Caribbean Islands (average of $217). Flying from Idaho to Caribbean Islands in May is currently the most expensive (average of $484). 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 EPX?

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

It’s optimal to fly from Idaho to Caribbean Islands in the evening. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Idaho to Caribbean Islands?

Use this chart to determine the cheapest time to fly round-trip from Idaho to Caribbean Islands. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Idaho to Caribbean Islands flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Caribbean Islands. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Idaho to Caribbean Islands?

    A quick flight from Idaho to Caribbean Islands can take about 9h 15m. Delta provides one of the quickest options available for as low as $395. The distance between Idaho and Caribbean Islands is about 3374 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Idaho to Caribbean Islands that include hotel bookings?

    Yes. In addition to deals on Idaho to Caribbean Islands flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Caribbean Islands?

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

  • Can I find deals for business class flights from Idaho to Caribbean Islands?

    Yes. Cheapflights offers flight deals from Idaho to Caribbean Islands 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 Caribbean Islands?

    Currently, June is the cheapest month in which you can book a flight from Idaho to Caribbean Islands (average of $217). Flying from Idaho to Caribbean Islands in May is currently the most expensive (average of $484). 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

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Alternative routes for Idaho to Caribbean Islands

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Idaho to Caribbean Islands

Discover the top 4 airlines that operate flights from Idaho to Caribbean Islands. 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 décembre 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$188Average$691FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$449Average$708FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$463Average$718FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$493Average$719FlexibilityNo cancel feeOn-time71%

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