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Caribbean Islands

$197+ Cheap flights from Boise (BOI) 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJU
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Boise to Caribbean Islands

Cheapest flights from Boise to Caribbean Islands
Explore the most affordable flight options available from Boise to Caribbean Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/195:12 pmBOI - NAS
2 stops18h 21mUnited Airlines
Sun 12/213:35 pmNAS - BOI
2 stops20h 26mUnited Airlines
Deal found 12/15$679
This American Airlines deal was found by Cheapflights users on 12/15. 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.
Fri 12/191:39 pmBOI - NAS
1 stop21h 31mAmerican Airlines
Sun 12/213:10 pmNAS - BOI
1 stop8h 52mAmerican Airlines
Deal found 12/15$773
This Southwest deal was found by Cheapflights users on 12/17. 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.
Thu 12/258:05 amBOI - SJU
2 stops13h 20mSouthwest
Mon 12/296:35 amSJU - BOI
2 stops13h 25mSouthwest
Deal found 12/17$895
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2011:47 pmBOI - SDQ
1 stop11h 45mDelta
Sun 12/287:55 pmSDQ - BOI
2 stops24h 32mDelta
Deal found 12/16$961
This American Airlines deal was found by Cheapflights users on 12/17. 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 12/257:40 amBOI - SJU
2 stops11h 25mAmerican Airlines
Mon 12/296:00 amSJU - BOI
1 stop19h 59mAmerican Airlines
Deal found 12/17$1,015
This American Airlines deal was found by Cheapflights users on 12/15. 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.
Fri 12/191:27 pmBOI - MBJ
2 stops18h 36mAmerican Airlines
Sun 12/2111:27 amMBJ - BOI
2 stops12h 59mAmerican Airlines
Deal found 12/15$1,016
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/202:40 pmBOI - PUJ
2 stops19h 19mUnited Airlines
Mon 12/222:55 pmPUJ - BOI
1 stop11h 04mUnited Airlines
Deal found 12/17$1,023
This Southwest deal was found by Cheapflights users on 12/17. 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.
Sat 12/208:40 pmBOI - PUJ
2 stops15h 30mSouthwest
Mon 12/224:00 pmPUJ - BOI
2 stops12h 25mSouthwest
Deal found 12/17$1,025
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Sat 12/202:18 pmBOI - SDQ
2 stops16h 49mAmerican Airlines
Sun 12/286:00 amSDQ - BOI
2 stops20h 40mAmerican Airlines
Deal found 12/16$1,095
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/287:00 amBOI - STT
2 stops30h 18mUnited Airlines
Tue 12/303:05 pmSTT - BOI
1 stop10h 54mUnited Airlines
Deal found 12/17$1,099
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/196:35 amBOI - SJU
2 stops15h 01mUnited Airlines
Fri 12/262:05 amSJU - BOI
2 stops23h 54mUnited Airlines
Deal found 12/17$1,139
This Delta deal was found by Cheapflights users on 12/17. 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 12/195:20 amBOI - SJU
2 stops15h 39mDelta
Sat 12/274:45 pmSJU - BOI
1 stop10h 08mDelta
Deal found 12/17$1,170

Find flight deals from Boise to Caribbean Islands

Keep the following information in mind while searching for Boise to Caribbean Islands flight deals. Data was last updated December 18, 2025.

Round-trip from

$395
(Southwest)

One-way from

$197
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$618
From Boise Air Term. Gowen Fld to Caribbean Islands
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Caribbean Islands
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise 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 December 18, 2025.
Use the filters below to find and compare flights from Boise to Caribbean Islands that are best for you.

Fly from

Boise

Fly to

Caribbean Islands

Route

Depart

Return

Price

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Wed 2/25

5:40 am-11:56 pm

2 stops15h 16m

San Juan Luis Munoz Marin Intl

Wed 3/4

6:15 am-8:55 pm

2 stops17h 40m

$395

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 1/26

6:10 am-6:25 pm

1 stop9h 15m

San Juan Luis Munoz Marin Intl

Tue 2/3

8:10 am-9:52 pm

2 stops16h 42m

$395

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 1/26

7:20 am-10:26 pm

1 stop12h 06m

San Juan Luis Munoz Marin Intl

Tue 2/3

6:00 am-1:53 pm

1 stop10h 53m

$431

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 1/12

7:05 pm-12:55 pm

2 stops14h 50m

San Juan Luis Munoz Marin Intl

Wed 1/21

8:35 am-6:07 pm

2 stops12h 32m

$432

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sat 3/7

1:36 pm-9:00 am

2 stops16h 24m

San Juan Luis Munoz Marin Intl

Tue 3/10

1:30 am-1:43 pm

2 stops14h 13m

$470

BoiseNassau

BOI - NAS

BOINAS

Boise Air Term. Gowen Fld

Wed 4/29

11:30 pm-3:54 pm

1 stop14h 24m

Nassau Intl

Tue 5/5

1:12 pm-10:38 pm

1 stop11h 26m

$481

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 2/23

6:25 am-6:25 pm

1 stop9h 00m

San Juan Luis Munoz Marin Intl

Thu 2/26

2:25 pm-9:32 pm

1 stop10h 07m

$485

BoiseNassau

BOI - NAS

BOINAS

Boise Air Term. Gowen Fld

Mon 2/9

2:48 pm-9:57 am

2 stops17h 09m

Nassau Intl

Fri 2/13

5:45 pm-11:01 am

2 stops19h 16m

$485

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sat 5/2

6:15 am-9:24 pm

2 stops13h 09m

San Juan Luis Munoz Marin Intl

Wed 5/6

7:00 am-10:22 pm

2 stops17h 22m

$485

BoiseNassau

BOI - NAS

BOINAS

Boise Air Term. Gowen Fld

Fri 1/30

7:05 pm-11:50 am

2 stops14h 45m

Nassau Intl

Fri 2/6

4:25 pm-12:39 pm

2 stops22h 14m

$485

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 48 results
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Best time to book a flight from Boise to Caribbean Islands

Have a flexible travel schedule? Discover the best time to fly to Caribbean Islands from Boise 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 Boise to Caribbean Islands

What is the cheapest month to book a flight from Boise to Caribbean Islands?

Currently, June is the cheapest month in which you can book a flight from Boise to Caribbean Islands (average of $217). Flying from Boise to Caribbean Islands in May is currently the most expensive (average of $484). 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 BOI to EPX?

Find hourly flight availability from Boise 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 December 18, 2025.

It’s typically best to fly out from Boise to Caribbean Islands in the afternoon. Doing so could potentially save you 14% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Boise to Caribbean Islands?

Use this chart to determine the cheapest time to fly round-trip from Boise to Caribbean Islands. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boise to Caribbean Islands flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 18, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Boise to Caribbean Islands. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,250 reviews

Entertainment

7.5

Crew

8.6

Overall

7.9

Boarding

8.1

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Entertainment

7.5

Crew

8.6

Overall

7.9

Boarding

8.1

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,005 reviews
Southwest
7.9
Good
4,250 reviews

Entertainment

7.5

Crew

8.6

Overall

7.9

Boarding

8.1

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,091 reviews
Southwest
7.9
Good
4,250 reviews

Entertainment

7.5

Crew

8.6

Overall

7.9

Boarding

8.1

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,054 reviews
Southwest
7.9
Good
4,250 reviews

Entertainment

7.5

Crew

8.6

Overall

7.9

Boarding

8.1

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Boise 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 airport do you fly from for flights from Boise to Caribbean Islands?

    Boise Air Term. Gowen Fld (BOI), located 3.3 mi from the city center, is the airport you fly out of when you book flights from Boise to Caribbean Islands.

  • How long is the flight from Boise to Caribbean Islands?

    A quick flight from Boise to Caribbean Islands can take about 9h 15m. Delta provides one of the quickest options available for as low as $395. Airlines will cover a distance of 3374 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Boise to Caribbean Islands?

    The most popular route from Boise to Caribbean Islands is Boise Air Term. Gowen Fld - San Juan Luis Munoz Marin Intl. You may also consider Boise Air Term. Gowen Fld - Saint Thomas Island Cyril E King or Boise Air Term. Gowen Fld - Punta Cana.

  • Can I find deals for flights from Boise to Caribbean Islands that include hotel bookings?

    Yes. In addition to deals on Boise to Caribbean Islands flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boise to Caribbean Islands?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boise to Caribbean Islands.

  • Can I find deals for business class flights from Boise to Caribbean Islands?

    Yes. Cheapflights offers flight deals from Boise 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 Boise to Caribbean Islands?

    Currently, June is the cheapest month in which you can book a flight from Boise to Caribbean Islands (average of $217). Flying from Boise to Caribbean Islands in May is currently the most expensive (average of $484). 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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Top 4 airlines flying from Boise to Caribbean Islands

Discover the top 4 airlines that operate flights from Boise 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$188Average$691FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$449Average$708FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$463Average$718FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$493Average$719FlexibilityNo cancel feeOn-time71%

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