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Caribbean

$157+ 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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJU
Mar 2 — Mar 91
Mon 3/2
Mon 3/9
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 January 31, 2026.

This Southwest deal was found by Cheapflights users on 1/30. 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.
Tue 3/37:45 am
BOI
-
SJU
2 stops12h 25m
Southwest
Tue 3/106:40 am
SJU
-
BOI
2 stops17h 40m
Southwest
Deal found 1/30$416
This American Airlines deal was found by Cheapflights users on 1/29. 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 4/216:00 am
GEG
-
SJU
1 stop14h 01m
American Airlines
Tue 4/286:47 am
SJU
-
GEG
1 stop13h 08m
American Airlines
Deal found 1/29$424
This Delta deal was found by Cheapflights users on 1/29. 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 2/255:15 pm
BOI
-
GCM
2 stops17h 14m
Delta
Wed 3/41:54 pm
GCM
-
BOI
2 stops25h 17m
Delta
Deal found 1/29$432
This United Airlines deal was found by Cheapflights users on 1/30. 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.
Tue 3/38:05 am
BOI
-
SJU
1 stop9h 55m
United Airlines
Tue 3/107:30 am
SJU
-
BOI
2 stops15h 59m
United Airlines
Deal found 1/30$442
This American Airlines deal was found by Cheapflights users on 1/29. 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 3/37:00 am
BOI
-
SJU
1 stop13h 31m
American Airlines
Tue 3/106:33 am
SJU
-
BOI
1 stop17h 50m
American Airlines
Deal found 1/29$452
This American Airlines deal was found by Cheapflights users on 1/30. 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.
Thu 4/236:00 am
GEG
-
SJU
1 stop19h 32m
American Airlines
Mon 4/2711:59 pm
SJU
-
GEG
1 stop19h 56m
American Airlines
Deal found 1/30$464
This United Airlines deal was found by Cheapflights users on 1/29. 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.
Sun 2/155:24 pm
BOI
-
NAS
2 stops19h 58m
United Airlines
Fri 2/203:35 pm
NAS
-
BOI
2 stops20h 37m
United Airlines
Deal found 1/29$481
This American Airlines deal was found by Cheapflights users on 1/30. 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 8/126:00 am
GEG
-
SJU
2 stops14h 40m
American Airlines
Wed 8/268:00 am
SJU
-
GEG
2 stops17h 25m
American Airlines
Deal found 1/30$484
This Southwest deal was found by Cheapflights users on 1/27. 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.
Fri 2/273:55 pm
GEG
-
SJU
2 stops14h 05m
Southwest
Wed 3/410:20 am
SJU
-
GEG
2 stops15h 20m
Southwest
Deal found 1/27$485
This American Airlines deal was found by Cheapflights users on 1/29. 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 7/296:00 pm
BOI
-
SJU
2 stops13h 33m
American Airlines
Sat 8/112:59 am
SJU
-
BOI
1 stop15h 09m
American Airlines
Deal found 1/29$499
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Mon 3/26:55 pm
BOI
-
SJU
2 stops16h 45m
United Airlines
Tue 3/32:05 am
SJU
-
BOI
2 stops17h 02m
United Airlines
Deal found 1/28$501
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Fri 2/2712:25 pm
GEG
-
SJU
1 stop12h 59m
American Airlines
Fri 3/67:33 am
SJU
-
GEG
1 stop17h 39m
American Airlines
Deal found 1/29$505

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 January 31, 2026.

Round-trip from

$416
(Delta)

One-way from

$157
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$554
From Idaho to Caribbean
Search Deals
One-way flight from Idaho to Caribbean
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($9 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 31, 2026.
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

7:45 am-11:10 pm

2 stops12h 25m

San Juan Luis Munoz Marin Intl

Tue 3/10

6:40 am-10:20 pm

2 stops17h 40m

$416

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Tue 4/28

1:33 pm-10:48 am

2 stops18h 15m

San Juan Luis Munoz Marin Intl

Tue 5/5

5:45 am-4:55 pm

2 stops14h 10m

$424

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Tue 4/28

7:10 am-8:34 pm

1 stop10h 24m

San Juan Luis Munoz Marin Intl

Tue 5/5

1:40 pm-9:16 pm

1 stop10h 36m

$424

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Mon 2/23

5:35 am-12:40 am

2 stops15h 05m

San Juan Luis Munoz Marin Intl

Thu 2/26

10:50 am-11:35 pm

2 stops16h 45m

$424

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Mon 2/23

6:00 am-11:31 pm

1 stop13h 31m

San Juan Luis Munoz Marin Intl

Thu 2/26

7:00 am-9:12 pm

2 stops18h 12m

$424

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Tue 4/21

6:00 am-11:01 pm

1 stop14h 01m

San Juan Luis Munoz Marin Intl

Tue 4/28

6:47 am-4:55 pm

1 stop13h 08m

$424

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Tue 4/14

6:45 am-11:01 pm

2 stops13h 16m

San Juan Luis Munoz Marin Intl

Fri 4/24

11:59 pm-2:19 pm

2 stops17h 20m

$424

BoiseGeorge Town

BOI - GCM

BOIGCM

Boise Air Term. Gowen Fld

Wed 2/25

5:15 pm-12:29 pm

2 stops17h 14m

George Town Owen Roberts Intl

Wed 3/4

1:54 pm-1:11 pm

2 stops25h 17m

$432

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

Tue 3/10

7:30 am-9:29 pm

2 stops15h 59m

$442

BoiseNassau

BOI - NAS

BOINAS

Boise Air Term. Gowen Fld

Sun 2/15

5:24 pm-3:22 pm

2 stops19h 58m

Nassau Intl

Fri 2/20

3:35 pm-10:12 am

2 stops20h 37m

$481

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

Showing 1-10 of 60 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 $220). Flying from Idaho to Caribbean in May is currently the most expensive (average of $490). 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.

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 $416, 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 $220). Flying from Idaho to Caribbean in May is currently the most expensive (average of $490). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 January 31, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$188Average$670FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$442Average$718FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$480Average$718FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$493Average$728FlexibilityNo cancel feeOn-time71%

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