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Caribbean

$257+ 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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJU
Apr 27 — May 41
Sun 4/27
Sun 5/4
1 adult, Economy
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Cheap flight deals from Idaho to Caribbean

Keep the following information in mind while searching for Idaho to Caribbean flight deals. Data was last updated April 22, 2025.

Round-trip from

$405
(Delta)

One-way from

$257
(Mytrip)

Popular in

December

Cheapest in

October

Average price

$615
From Idaho to Caribbean
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One-way flight from Idaho to Caribbean
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 April 22, 2025.

This Delta deal was found by Cheapflights users on 4/22. 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.
Sat 9/65:45 pmBOI - SJU
2 stops15h 44mDelta
Sat 9/132:15 pmSJU - BOI
2 stops11h 23mDelta
Deal found 4/22$405
This Southwest deal was found by Cheapflights users on 4/22. 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 9/26:00 amBOI - SJU
2 stops11h 45mSouthwest
Wed 9/105:00 amSJU - BOI
2 stops14h 20mSouthwest
Deal found 4/22$442
This Delta deal was found by Cheapflights users on 4/22. 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 7/165:00 pmGEG - SJU
2 stops17h 10mDelta
Wed 7/302:15 pmSJU - GEG
2 stops13h 04mDelta
Deal found 4/22$455
This American Airlines deal was found by Cheapflights users on 4/22. 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.
Mon 9/17:30 amBOI - SJU
2 stops10h 45mAmerican Airlines
Thu 9/115:25 pmSJU - BOI
2 stops21h 09mAmerican Airlines
Deal found 4/22$490
This American Airlines deal was found by Cheapflights users on 4/22. 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 10/11:41 pmBOI - NAS
2 stops17h 59mAmerican Airlines
Sun 10/56:46 pmNAS - BOI
2 stops19h 48mAmerican Airlines
Deal found 4/22$494
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Sat 9/67:00 amBOI - SJU
1 stop8h 30mUnited Airlines
Fri 9/121:05 amSJU - BOI
2 stops12h 26mUnited Airlines
Deal found 4/22$495
This American Airlines deal was found by Cheapflights users on 4/22. 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 8/266:10 amGEG - SJU
2 stops11h 05mAmerican Airlines
Tue 9/28:40 amSJU - GEG
2 stops17h 15mAmerican Airlines
Deal found 4/22$520
This Mytrip deal was found by Cheapflights users on 4/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/59:35 amGEG - PUJ
2 stops25h 42mMultiple Airlines
Thu 6/123:23 pmPUJ - GEG
2 stops28h 44mMultiple Airlines
Deal found 4/21$551
This Southwest deal was found by Cheapflights users on 4/21. 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 6/69:55 amGEG - SJU
2 stops12h 00mSouthwest
Fri 6/131:30 pmSJU - GEG
2 stops13h 25mSouthwest
Deal found 4/21$575
This Delta deal was found by Cheapflights users on 4/21. 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 7/14:17 pmBOI - STT
2 stops17h 52mDelta
Mon 7/141:21 pmSTT - BOI
2 stops12h 43mDelta
Deal found 4/21$579
This Mytrip deal was found by Cheapflights users on 4/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/281:52 pmBOI - SJU
2 stops27h 48mSpirit Airlines
Sun 5/410:27 amSJU - BOI
2 stops28h 30mSpirit Airlines
Deal found 4/22$600
This Delta deal was found by Cheapflights users on 4/21. 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 8/1410:59 pmGEG - GCM
1 stop10h 32mDelta
Thu 8/2112:50 pmGCM - GEG
1 stop11h 06mDelta
Deal found 4/21$636

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 April 22, 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

Sat 9/6

5:45 pm-11:29 am

2 stops15h 44m

San Juan Luis Munoz Marin Intl

Sat 9/13

2:15 pm-11:38 pm

2 stops11h 23m

$405

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 9/2

6:00 am-7:45 pm

2 stops11h 45m

San Juan Luis Munoz Marin Intl

Wed 9/10

5:00 am-5:20 pm

2 stops14h 20m

$442

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Wed 7/16

5:00 pm-1:10 pm

2 stops17h 10m

San Juan Luis Munoz Marin Intl

Wed 7/30

2:15 pm-12:19 am

2 stops13h 04m

$455

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 9/1

7:30 am-8:15 pm

2 stops10h 45m

San Juan Luis Munoz Marin Intl

Thu 9/11

5:25 pm-12:34 pm

2 stops21h 09m

$490

BoiseNassau

BOI - NAS

BOINAS

Boise Air Term. Gowen Fld

Wed 10/1

1:41 pm-9:40 am

2 stops17h 59m

Nassau Intl

Sun 10/5

6:46 pm-12:34 pm

2 stops19h 48m

$494

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sat 9/6

7:00 am-5:30 pm

1 stop8h 30m

San Juan Luis Munoz Marin Intl

Fri 9/12

1:05 am-11:31 am

2 stops12h 26m

$495

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Tue 8/26

6:10 am-8:15 pm

2 stops11h 05m

San Juan Luis Munoz Marin Intl

Tue 9/2

8:40 am-10:55 pm

2 stops17h 15m

$520

SpokanePunta Cana

GEG - PUJ

GEGPUJ

Spokane

Thu 6/5

9:35 am-2:17 pm

2 stops25h 42m

Punta Cana

Thu 6/12

3:23 pm-5:07 pm

2 stops28h 44m

$551

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Fri 6/6

9:55 am-12:55 am

2 stops12h 00m

San Juan Luis Munoz Marin Intl

Fri 6/13

1:30 pm-11:55 pm

2 stops13h 25m

$575

BoiseSaint Thomas Island

BOI - STT

BOISTT

Boise Air Term. Gowen Fld

Tue 7/1

4:17 pm-12:09 pm

2 stops17h 52m

Saint Thomas Island Cyril E King

Mon 7/14

1:21 pm-12:04 am

2 stops12h 43m

$579

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 34 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, September is the cheapest month in which you can book a flight from Idaho to Caribbean (average of $254). Flying from Idaho to Caribbean in December is currently the most expensive (average of $336). 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 April 22, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Caribbean as you normally would.

Rainfall in Caribbean by month

Plan your trip to Caribbean by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Caribbean ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit Caribbean when rainfall is around 2.2 in.

Temperature in Caribbean by month

Plan your trip to Caribbean by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Caribbean, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing Caribbean

Get insights into the airlines that provide service to Caribbean. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Caribbean. Reviews last updated April 22, 2025.
Alaska Airlines
8.0
Very good
9,906 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,906 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,286 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
LATAM Airlines
7.5
Good
1,765 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,683 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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.

  • What are the cheapest airlines to fly from Idaho to Caribbean one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $318. Users have also found prices from $411 and $4,248 on Delta and United Airlines, respectively.

  • 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, September is the cheapest month in which you can book a flight from Idaho to Caribbean (average of $254). Flying from Idaho to Caribbean in December is currently the most expensive (average of $336). 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 6 airlines flying from Idaho to Caribbean

Discover the top 6 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 April 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$188Average$681FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$253Average$424FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$409Average$768FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$475Average$1,133FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$501Average$664FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$530Average$718FlexibilityNo cancel feeOn-time71%

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