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Caribbean Islands

$179+ 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJU
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
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Cheap 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 June 16, 2025.

Round-trip from

$407
(FlightHub)

Popular in

December

Cheapest in

October

Average price

$715
From Idaho to Caribbean Islands
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find 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 June 16, 2025.

This FlightHub deal was found by Cheapflights users on 6/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/217:48 pmBOI - SJU
2 stops24h 02mSpirit Airlines
Thu 7/311:37 amSJU - BOI
2 stops19h 15mSpirit Airlines
Deal found 6/14$407
This Delta deal was found by Cheapflights users on 6/14. 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.
Sat 9/66:00 pmBOI - SJU
2 stops16h 18mDelta
Sat 9/132:15 pmSJU - BOI
2 stops11h 23mDelta
Deal found 6/14$415
This American Airlines deal was found by Cheapflights users on 6/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/107:16 amBOI - NAS
1 stop8h 09mAmerican Airlines
Thu 7/176:30 pmNAS - BOI
1 stop18h 24mAmerican Airlines
Deal found 6/14$435
This Delta deal was found by Cheapflights users on 6/15. 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.
Thu 7/1011:40 pmBOI - NAS
1 stop11h 55mDelta
Thu 7/171:13 pmNAS - BOI
2 stops12h 56mDelta
Deal found 6/15$439
This Mytrip deal was found by Cheapflights users on 6/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/255:52 pmGEG - SJU
2 stops14h 40mMultiple Airlines
Sat 8/91:37 amSJU - GEG
2 stops42h 25mMultiple Airlines
Deal found 6/15$460
This American Airlines deal was found by Cheapflights users on 6/16. 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.
Tue 8/266:00 amGEG - SJU
2 stops14h 59mAmerican Airlines
Tue 9/27:05 pmSJU - GEG
2 stops19h 40mAmerican Airlines
Deal found 6/16$463
This American Airlines deal was found by Cheapflights users on 6/15. 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.
Wed 9/101:38 pmBOI - SJU
2 stops19h 33mAmerican Airlines
Thu 9/186:10 amSJU - BOI
2 stops19h 25mAmerican Airlines
Deal found 6/15$490
This United Airlines deal was found by Cheapflights users on 6/14. 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.
Sat 9/67:00 amBOI - SJU
1 stop8h 30mUnited Airlines
Sat 9/132:00 pmSJU - BOI
1 stop9h 14mUnited Airlines
Deal found 6/14$505
This United Airlines deal was found by Cheapflights users on 6/14. 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.
Thu 7/35:42 pmBOI - NAS
2 stops18h 08mUnited Airlines
Tue 7/85:00 pmNAS - BOI
2 stops27h 07mUnited Airlines
Deal found 6/14$539
This FlightHub deal was found by Cheapflights users on 6/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/227:30 pmBOI - STT
2 stops12h 44mSpirit Airlines
Sat 8/3011:19 amSTT - BOI
2 stops33h 07mSpirit Airlines
Deal found 6/13$550
This Mytrip deal was found by Cheapflights users on 6/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/296:02 pmBOI - SJU
3 stops29h 29mMultiple Airlines
Thu 7/311:44 amSJU - BOI
2 stops35h 57mMultiple Airlines
Deal found 6/13$588
This Delta deal was found by Cheapflights users on 6/14. 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.
Wed 7/165:10 pmGEG - SJU
2 stops15h 58mDelta
Wed 7/302:36 pmSJU - GEG
2 stops11h 36mDelta
Deal found 6/14$608

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 June 16, 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

Mon 7/21

7:48 pm-9:50 pm

2 stops24h 02m

San Juan Luis Munoz Marin Intl

Thu 7/31

1:37 am-6:52 pm

2 stops19h 15m

$407

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sat 9/6

6:00 pm-12:18 pm

2 stops16h 18m

San Juan Luis Munoz Marin Intl

Sat 9/13

2:15 pm-11:38 pm

2 stops11h 23m

$415

BoiseNassau

BOI - NAS

BOINAS

Boise Air Term. Gowen Fld

Thu 7/10

7:16 am-5:25 pm

1 stop8h 09m

Nassau Intl

Thu 7/17

6:30 pm-10:54 am

1 stop18h 24m

$435

BoiseNassau

BOI - NAS

BOINAS

Boise Air Term. Gowen Fld

Thu 7/10

11:40 pm-1:35 pm

1 stop11h 55m

Nassau Intl

Thu 7/17

1:13 pm-12:09 am

2 stops12h 56m

$439

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Fri 7/25

5:52 pm-11:32 am

2 stops14h 40m

San Juan Luis Munoz Marin Intl

Sat 8/9

1:37 am-5:02 pm

2 stops42h 25m

$460

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Tue 8/26

6:00 am-11:59 pm

2 stops14h 59m

San Juan Luis Munoz Marin Intl

Tue 9/2

7:05 pm-11:45 am

2 stops19h 40m

$463

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 7/15

5:00 am-5:30 pm

1 stop10h 30m

San Juan Luis Munoz Marin Intl

Tue 7/15

1:10 am-1:29 pm

2 stops14h 19m

$484

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Wed 9/10

1:38 pm-11:11 am

2 stops19h 33m

San Juan Luis Munoz Marin Intl

Thu 9/18

6:10 am-11:35 pm

2 stops19h 25m

$490

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 7/15

10:20 am-11:55 pm

2 stops11h 35m

San Juan Luis Munoz Marin Intl

Wed 7/16

1:25 pm-11:40 pm

2 stops12h 15m

$495

BoiseNassau

BOI - NAS

BOINAS

Boise Air Term. Gowen Fld

Thu 7/3

5:42 pm-1:50 pm

2 stops18h 08m

Nassau Intl

Tue 7/8

5:00 pm-6:07 pm

2 stops27h 07m

$539

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 40 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, September is the cheapest month in which you can book a flight from Idaho to Caribbean Islands (average of $254). Flying from Idaho to Caribbean Islands in June is currently the most expensive (average of $339). 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 June 16, 2025.

When flying from Idaho to Caribbean Islands, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Caribbean Islands by month

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

In terms of precipitation, rainfall in Caribbean Islands 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 Islands when rainfall is around 2.2 in.

Temperature in Caribbean Islands by month

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

If weather is an important factor for your trip to Caribbean Islands, 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 Islands

Get insights into the airlines that provide service to Caribbean Islands. 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 Islands. Reviews last updated June 16, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Idaho to Caribbean Islands by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Southwest
8.0
Very good
4,278 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Delta
8.0
Very good
7,963 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
LATAM Airlines
7.5
Good
1,785 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Copa Airlines
7.5
Good
1,452 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.

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.

  • 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, September is the cheapest month in which you can book a flight from Idaho to Caribbean Islands (average of $254). Flying from Idaho to Caribbean Islands in June is currently the most expensive (average of $339). 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 6 airlines flying from Idaho to Caribbean Islands

Discover the top 6 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 June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$253Average$415FlexibilityNo cancel feeOn-time65%
DeltaCheapest$374Average$687FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$409Average$746FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$475Average$1,133FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$501Average$733FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$530Average$735FlexibilityNo cancel feeOn-time71%

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