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Caribbean

$203+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJU
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
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 2, 2025.

Round-trip from

$405
(Delta)

One-way from

$203
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$606
From Idaho to Caribbean
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One-way flight from Idaho to Caribbean
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Highest demand for flights based on searches. 1% potential increase in price ($11 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 2, 2025.

This Delta deal was found by Cheapflights users on 3/30. 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 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 3/30$405
This Delta deal was found by Cheapflights users on 4/1. 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.
Sun 4/277:25 pmGEG - SJU
2 stops14h 45mDelta
Tue 5/66:35 amSJU - GEG
2 stops17h 09mDelta
Deal found 4/1$405
This CheapOair deal was found by Cheapflights users on 4/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/51:52 pmBOI - SJU
2 stops27h 48mSpirit Airlines
Thu 5/81:33 amSJU - BOI
2 stops11h 48mSpirit Airlines
Deal found 4/1$444
This Southwest deal was found by Cheapflights users on 4/1. 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.
Mon 5/56:05 pmBOI - SJU
2 stops14h 15mSouthwest
Fri 5/910:45 amSJU - BOI
2 stops15h 10mSouthwest
Deal found 4/1$487
This American Airlines deal was found by Cheapflights users on 3/31. 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 7/225:17 pmBOI - NAS
2 stops14h 48mAmerican Airlines
Tue 7/2911:05 amNAS - BOI
2 stops12h 50mAmerican Airlines
Deal found 3/31$489
This United Airlines deal was found by Cheapflights users on 3/31. 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 4/287:00 pmBOI - SJU
2 stops16h 45mUnited Airlines
Mon 5/51:40 pmSJU - BOI
1 stop10h 02mUnited Airlines
Deal found 3/31$493
This United Airlines deal was found by Cheapflights users on 4/1. 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 8/292:43 pmBOI - NAS
2 stops21h 07mUnited Airlines
Wed 9/32:33 pmNAS - BOI
2 stops21h 10mUnited Airlines
Deal found 4/1$519
This American Airlines deal was found by Cheapflights users on 4/1. 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
1 stop13h 50mAmerican Airlines
Tue 9/25:30 amSJU - GEG
1 stop17h 57mAmerican Airlines
Deal found 4/1$523
This American Airlines deal was found by Cheapflights users on 4/1. 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 5/51:38 pmBOI - SJU
1 stop13h 34mAmerican Airlines
Fri 5/97:15 amSJU - BOI
2 stops18h 17mAmerican Airlines
Deal found 4/1$530
This Mytrip deal was found by Cheapflights users on 4/1. 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.
Sat 5/172:40 pmBOI - SJU
3 stops29h 37mMultiple Airlines
Sat 5/248:12 pmSJU - BOI
3 stops23h 42mMultiple Airlines
Deal found 4/1$539
This United deal was found by Cheapflights users on 4/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/275:14 amGEG - SJU
1 stop9h 16mUnited Airlines
Mon 5/51:05 amSJU - GEG
2 stops16h 36mUnited Airlines
Deal found 4/1$550
This American Airlines deal was found by Cheapflights users on 4/1. 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.
Sat 4/193:21 pmGEG - MBJ
2 stops16h 24mAmerican Airlines
Wed 4/2312:55 pmMBJ - GEG
2 stops12h 04mAmerican Airlines
Deal found 4/1$581

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 2, 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

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Sun 4/27

10:45 pm-2:19 pm

1 stop12h 34m

San Juan Luis Munoz Marin Intl

Tue 5/6

6:35 am-11:00 pm

2 stops19h 25m

$405

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 5/5

1:52 pm-7:40 pm

2 stops27h 48m

San Juan Luis Munoz Marin Intl

Thu 5/8

1:33 am-11:21 am

2 stops11h 48m

$444

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 5/5

6:05 pm-10:20 am

2 stops14h 15m

San Juan Luis Munoz Marin Intl

Fri 5/9

10:45 am-11:55 pm

2 stops15h 10m

$487

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 4/28

7:00 pm-1:45 pm

2 stops16h 45m

San Juan Luis Munoz Marin Intl

Mon 5/5

1:40 pm-9:42 pm

1 stop10h 02m

$493

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Fri 4/18

5:14 am-5:30 pm

1 stop9h 16m

San Juan Luis Munoz Marin Intl

Tue 4/22

1:40 pm-8:50 pm

1 stop10h 10m

$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

$523

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 5/5

1:38 pm-5:12 am

1 stop13h 34m

San Juan Luis Munoz Marin Intl

Fri 5/9

7:15 am-11:32 pm

2 stops18h 17m

$530

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sat 5/17

2:40 pm-10:17 pm

3 stops29h 37m

San Juan Luis Munoz Marin Intl

Sat 5/24

8:12 pm-5:54 pm

3 stops23h 42m

$539

SpokaneMontego Bay

GEG - MBJ

GEGMBJ

Spokane

Sat 4/19

3:21 pm-9:45 am

2 stops16h 24m

Montego Bay Sangster Intl

Wed 4/23

12:55 pm-10:59 pm

2 stops12h 04m

$581

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 35 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 2, 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 2, 2025.
Alaska Airlines
8.0
Very good
9,820 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,820 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,272 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,898 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,615 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 $203. Users have also found prices from $299 and $312 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

Browse thousands of different options on Cheapflights for your next trip

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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 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$253Average$490FlexibilityNo cancel feeOn-time65%
DeltaCheapest$374Average$741FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$409Average$764FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$475Average$1,133FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$501Average$665FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$530Average$798FlexibilityNo cancel feeOn-time71%

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