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$198+ Cheap flights from Idaho to Caribbean

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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJU
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap flight deals from Idaho to Caribbean

Cheapest flights from Idaho to Caribbean
Explore the most affordable flight options available from Idaho to Caribbean. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1911:35 pmBOI - NAS
1 stop13h 28mDelta
Thu 12/258:10 amNAS - BOI
2 stops16h 47mDelta
Deal found 12/14$616
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1711:10 amBOI - NAS
2 stops22h 31mDelta
Sun 12/211:31 pmNAS - BOI
2 stops12h 22mDelta
Deal found 12/13$631
This American Airlines deal was found by Cheapflights users on 12/13. 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.
Wed 12/171:25 pmBOI - NAS
1 stop22h 52mAmerican Airlines
Sun 12/213:10 pmNAS - BOI
1 stop8h 52mAmerican Airlines
Deal found 12/13$656
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Fri 12/195:12 pmBOI - NAS
1 stop21h 02mUnited Airlines
Thu 12/253:35 pmNAS - BOI
1 stop9h 24mUnited Airlines
Deal found 12/14$700
This United Airlines deal was found by Cheapflights users on 12/13. 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.
Wed 12/245:12 pmBOI - GCM
2 stops18h 33mUnited Airlines
Tue 12/302:50 pmGCM - BOI
2 stops21h 11mUnited Airlines
Deal found 12/13$769
This American Airlines deal was found by Cheapflights users on 12/13. 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.
Wed 12/241:27 pmBOI - GCM
2 stops20h 34mAmerican Airlines
Tue 12/304:31 pmGCM - BOI
1 stop22h 06mAmerican Airlines
Deal found 12/13$810
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/234:53 pmGEG - SJU
2 stops16h 04mDelta
Wed 12/314:45 pmSJU - GEG
1 stop10h 31mDelta
Deal found 12/14$845
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2911:47 pmBOI - PUJ
2 stops12h 34mDelta
Tue 1/64:30 pmPUJ - BOI
2 stops26h 47mDelta
Deal found 12/14$857
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/253:19 pmBOI - PUJ
1 stop20h 16mDelta
Wed 1/74:30 pmPUJ - BOI
2 stops24h 32mDelta
Deal found 12/14$877
This United Airlines deal was found by Cheapflights users on 12/13. 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.
Thu 12/187:00 amBOI - SJU
2 stops14h 36mUnited Airlines
Wed 12/318:10 amSJU - BOI
1 stop31h 29mUnited Airlines
Deal found 12/13$945
This American Airlines deal was found by Cheapflights users on 12/12. 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.
Tue 12/233:05 pmGEG - SJU
2 stops14h 30mAmerican Airlines
Wed 12/317:45 amSJU - GEG
2 stops14h 50mAmerican Airlines
Deal found 12/12$945
This American Airlines deal was found by Cheapflights users on 12/13. 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.
Sun 12/287:00 amBOI - SJU
1 stop19h 34mAmerican Airlines
Thu 1/17:00 amSJU - BOI
1 stop18h 02mAmerican Airlines
Deal found 12/13$947

Find flight deals from Idaho to Caribbean

Keep the following information in mind while searching for Idaho to Caribbean flight deals. Data was last updated December 15, 2025.

Round-trip from

$395
(Southwest)

One-way from

$198
(Delta)

Popular in

March

Cheapest in

September

Average price

$618
From Idaho to Caribbean
Search Deals
One-way flight from Idaho to Caribbean
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 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 15, 2025.
Use the filters below to find and compare flights from Idaho to Caribbean that are best for you.

Fly from

Idaho

Fly to

Caribbean

Route

Depart

Return

Price

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 3/3

8:05 am-9:00 pm

1 stop9h 55m

San Juan Luis Munoz Marin Intl

Mon 3/9

1:05 am-1:32 pm

2 stops14h 27m

$395

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 2/2

7:20 am-11:59 pm

2 stops13h 39m

San Juan Luis Munoz Marin Intl

Fri 2/6

6:00 am-7:25 pm

2 stops16h 25m

$431

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Wed 2/25

6:30 am-11:56 pm

2 stops13h 26m

San Juan Luis Munoz Marin Intl

Thu 3/5

6:15 am-7:57 pm

2 stops17h 42m

$431

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sat 3/7

1:23 pm-5:00 am

1 stop12h 37m

San Juan Luis Munoz Marin Intl

Tue 3/10

1:30 am-1:43 pm

2 stops14h 13m

$431

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Mon 3/23

10:40 pm-12:00 pm

1 stop10h 20m

San Juan Luis Munoz Marin Intl

Tue 3/31

7:00 am-6:12 pm

2 stops14h 12m

$431

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Wed 2/18

3:10 pm-10:07 am

2 stops14h 57m

San Juan Luis Munoz Marin Intl

Tue 2/24

8:15 am-5:34 pm

2 stops13h 19m

$431

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Sun 1/11

3:02 pm-10:48 am

2 stops15h 46m

San Juan Luis Munoz Marin Intl

Sat 1/17

6:00 am-6:49 pm

2 stops16h 49m

$431

BoiseGeorge Town

BOI - GCM

BOIGCM

Boise Air Term. Gowen Fld

Thu 2/19

5:20 am-12:29 pm

2 stops29h 09m

George Town Owen Roberts Intl

Thu 3/5

1:54 pm-1:58 pm

2 stops26h 04m

$469

BoiseGeorge Town

BOI - GCM

BOIGCM

Boise Air Term. Gowen Fld

Tue 2/17

3:01 pm-12:29 pm

2 stops19h 28m

George Town Owen Roberts Intl

Thu 3/5

1:54 pm-1:58 pm

2 stops26h 04m

$469

BoiseGeorge Town

BOI - GCM

BOIGCM

Boise Air Term. Gowen Fld

Mon 2/23

7:02 pm-12:05 pm

2 stops15h 03m

George Town Owen Roberts Intl

Sun 3/1

3:45 pm-11:01 am

2 stops21h 16m

$474

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 41 results
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Best time to book a flight from Idaho to Caribbean

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

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

Currently, June is the cheapest month in which you can book a flight from Idaho to Caribbean (average of $217). Flying from Idaho to Caribbean 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 CB?

Find hourly flight availability from Idaho to Caribbean. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

It’s optimal to fly from Idaho to Caribbean 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?

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

Travelers seeking maximum savings on their Idaho to Caribbean 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. 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?

    For as low as $395, Southwest can have you in Caribbean from Idaho in 12h 25m. Idaho and Caribbean are separated by a distance of 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 that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho to Caribbean 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?

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

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

Discover the top 4 airlines that operate flights from Idaho to Caribbean. 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 15, 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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