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Caribbean Islands

$208+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJU
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Round-trip from

$415
(Delta)

One-way from

$208
(Delta)

Popular in

December

Cheapest in

October

Average price

$607
From Idaho to Caribbean Islands
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One-way flight from Idaho to Caribbean Islands
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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 May 2025
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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 May 1, 2025.

This Delta deal was found by Cheapflights users on 4/30. 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 9/137:00 amSJU - BOI
2 stops18h 59mDelta
Deal found 4/30$415
This Delta deal was found by Cheapflights users on 4/29. 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.
Sat 6/143:36 pmGEG - SJU
2 stops17h 30mDelta
Tue 7/87:00 amSJU - GEG
2 stops20h 04mDelta
Deal found 4/29$415
This Mytrip deal was found by Cheapflights users on 5/1. 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.
Thu 5/299:28 amGEG - PUJ
3 stops46h 33mMultiple Airlines
Thu 6/511:56 amPUJ - GEG
2 stops32h 11mMultiple Airlines
Deal found 5/1$460
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/169:43 amBOI - SJU
2 stops34h 06mMultiple Airlines
Sat 6/214:20 pmSJU - BOI
1 stop28h 00mMultiple Airlines
Deal found 4/30$462
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Sat 7/266:25 pmGEG - SJU
2 stops15h 09mUnited Airlines
Tue 9/301:05 amSJU - GEG
2 stops14h 31mUnited Airlines
Deal found 5/1$466
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Sun 9/77:09 pmBOI - SJU
2 stops16h 36mUnited Airlines
Fri 9/121:05 amSJU - BOI
2 stops12h 26mUnited Airlines
Deal found 5/1$493
This Delta deal was found by Cheapflights users on 5/1. 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 9/710:59 pmGEG - NAS
1 stop9h 55mDelta
Wed 9/102:37 pmNAS - GEG
2 stops12h 41mDelta
Deal found 5/1$499
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/169:43 amBOI - SJU
2 stops34h 06mSpirit Airlines
Sat 6/215:12 pmSJU - BOI
3 stops41h 36mSpirit Airlines
Deal found 4/30$512
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Fri 6/67:07 pmBOI - NAS
2 stops14h 31mUnited Airlines
Thu 6/125:00 pmNAS - BOI
2 stops18h 46mUnited Airlines
Deal found 4/30$515
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Fri 6/136:00 amGEG - NAS
1 stop8h 25mAmerican Airlines
Fri 6/2010:35 amNAS - GEG
2 stops15h 45mAmerican Airlines
Deal found 4/30$525
This Delta deal was found by Cheapflights users on 4/30. 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.
Fri 6/611:59 pmBOI - NAS
1 stop9h 49mDelta
Thu 6/123:08 pmNAS - BOI
1 stop9h 21mDelta
Deal found 4/30$531
This American Airlines deal was found by Cheapflights users on 5/1. 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.
Thu 7/1012:27 pmGEG - GCM
1 stop24h 02mAmerican Airlines
Thu 7/173:30 pmGCM - GEG
1 stop9h 58mAmerican Airlines
Deal found 5/1$539

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 May 1, 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

Sat 9/6

5:45 pm-11:29 am

2 stops15h 44m

San Juan Luis Munoz Marin Intl

Sat 9/13

7:00 am-11:59 pm

2 stops18h 59m

$415

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Sat 6/14

3:36 pm-12:06 pm

2 stops17h 30m

San Juan Luis Munoz Marin Intl

Tue 7/8

7:00 am-12:04 am

2 stops20h 04m

$415

SpokanePunta Cana

GEG - PUJ

GEGPUJ

Spokane

Thu 5/29

9:28 am-11:01 am

3 stops46h 33m

Punta Cana

Thu 6/5

11:56 am-5:07 pm

2 stops32h 11m

$460

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 6/16

9:43 am-9:49 pm

2 stops34h 06m

San Juan Luis Munoz Marin Intl

Sat 6/21

4:20 pm-6:20 pm

1 stop28h 00m

$462

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Sat 7/26

6:25 pm-12:34 pm

2 stops15h 09m

San Juan Luis Munoz Marin Intl

Tue 9/30

1:05 am-12:36 pm

2 stops14h 31m

$466

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sun 9/7

7:09 pm-1:45 pm

2 stops16h 36m

San Juan Luis Munoz Marin Intl

Fri 9/12

1:05 am-11:31 am

2 stops12h 26m

$493

SpokaneNassau

GEG - NAS

GEGNAS

Spokane

Sun 9/7

10:59 pm-11:54 am

1 stop9h 55m

Nassau Intl

Wed 9/10

2:37 pm-12:18 am

2 stops12h 41m

$499

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 6/16

9:43 am-9:49 pm

2 stops34h 06m

San Juan Luis Munoz Marin Intl

Sat 6/21

5:12 pm-8:48 am

3 stops41h 36m

$512

BoiseNassau

BOI - NAS

BOINAS

Boise Air Term. Gowen Fld

Fri 6/6

7:07 pm-11:38 am

2 stops14h 31m

Nassau Intl

Thu 6/12

5:00 pm-9:46 am

2 stops18h 46m

$515

SpokaneNassau

GEG - NAS

GEGNAS

Spokane

Fri 6/13

6:00 am-5:25 pm

1 stop8h 25m

Nassau Intl

Fri 6/20

10:35 am-11:20 pm

2 stops15h 45m

$525

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 38 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 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 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 May 1, 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 May 1, 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
9,972 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.1

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.1

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,293 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.1

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.1

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
LATAM Airlines
7.5
Good
1,767 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.1

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Food

7.1

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $208. Users have also found prices from $343 and $451 on United Airlines and American Airlines, respectively.

  • 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 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 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$188Average$668FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$253Average$424FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$409Average$766FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$475Average$1,133FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$501Average$664FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$530Average$716FlexibilityNo cancel feeOn-time71%

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