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Puerto Rico

$204+ Cheap flights from Boise (BOI) to Puerto Rico

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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJU
Feb 2 — Feb 91
Mon 2/2
Mon 2/9
1 adult, Economy
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Cheap flight deals from Boise to Puerto Rico

Cheapest flights from Boise to Puerto Rico
Explore the most affordable flight options available from Boise to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 3, 2026.

This Delta deal was found by Cheapflights users on 12/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:16 pmBOI - SJU
2 stops16h 58mDelta
Fri 4/246:15 amSJU - BOI
2 stops18h 10mDelta
Deal found 12/31$395
This Delta deal was found by Cheapflights users on 1/2. 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 4/148:01 pmBOI - SJU
2 stops18h 22mDelta
Thu 4/237:30 amSJU - BOI
2 stops13h 51mDelta
Deal found 1/2$396
This United Airlines deal was found by Cheapflights users on 12/31. 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.
Wed 4/155:00 amBOI - SJU
1 stop10h 38mUnited Airlines
Mon 4/201:00 amSJU - BOI
2 stops14h 31mUnited Airlines
Deal found 12/31$426
This American Airlines deal was found by Cheapflights users on 12/31. 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.
Sat 3/71:41 pmBOI - SJU
2 stops16h 19mAmerican Airlines
Tue 3/101:30 amSJU - BOI
1 stop13h 18mAmerican Airlines
Deal found 12/31$431
This United Airlines deal was found by Cheapflights users on 1/2. 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.
Wed 5/66:15 amBOI - SJU
2 stops12h 19mUnited Airlines
Tue 5/121:00 amSJU - BOI
2 stops14h 30mUnited Airlines
Deal found 1/2$458
This Delta deal was found by Cheapflights users on 12/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:36 pmBOI - SJU
1 stop11h 38mDelta
Thu 5/712:50 pmSJU - BOI
1 stop11h 48mDelta
Deal found 12/31$460
This Delta deal was found by Cheapflights users on 1/2. 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 4/77:30 pmBOI - SJU
2 stops18h 27mDelta
Wed 4/157:00 amSJU - BOI
2 stops17h 10mDelta
Deal found 1/2$461
This American Airlines deal was found by Cheapflights users on 1/1. 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 2/147:00 amBOI - SJU
1 stop13h 31mAmerican Airlines
Sat 2/286:33 amSJU - BOI
2 stops15h 17mAmerican Airlines
Deal found 1/1$470
This American Airlines deal was found by Cheapflights users on 1/2. 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 2/207:00 amBOI - SJU
1 stop13h 31mAmerican Airlines
Sat 2/286:33 amSJU - BOI
2 stops15h 17mAmerican Airlines
Deal found 1/2$471
This Delta deal was found by Cheapflights users on 12/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:16 pmBOI - SJU
2 stops16h 58mDelta
Wed 4/226:15 amSJU - BOI
2 stops18h 10mDelta
Deal found 12/31$484
This United Airlines deal was found by Cheapflights users on 12/31. 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.
Wed 4/155:00 amBOI - SJU
1 stop10h 38mUnited Airlines
Fri 4/241:00 amSJU - BOI
2 stops16h 24mUnited Airlines
Deal found 12/31$485

Find flight deals from Boise to Puerto Rico

Keep the following information in mind while searching for Boise to Puerto Rico flight deals. Data was last updated January 3, 2026.

Round-trip from

$395
(United Airlines)

One-way from

$204
(Delta)

Popular in

March

Cheapest in

September

Average price

$537
From Boise Air Term. Gowen Fld to Puerto Rico
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Puerto Rico
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 January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Puerto Rico 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 January 3, 2026.
Use the filters below to find and compare flights from Boise to Puerto Rico that are best for you.

Fly from

Boise

Fly to

Puerto Rico

Route

Depart

Return

Price

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sat 3/7

1:41 pm-9:00 am

2 stops16h 19m

San Juan Luis Munoz Marin Intl

Tue 3/10

1:30 am-12:48 pm

1 stop13h 18m

$431

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sun 3/29

11:30 pm-11:47 am

1 stop10h 17m

San Juan Luis Munoz Marin Intl

Thu 4/9

2:44 pm-10:27 pm

1 stop9h 43m

$460

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 3/30

11:30 pm-1:27 pm

1 stop11h 57m

San Juan Luis Munoz Marin Intl

Thu 4/9

2:44 pm-10:27 pm

1 stop9h 43m

$460

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Fri 2/20

7:00 am-11:31 pm

1 stop13h 31m

San Juan Luis Munoz Marin Intl

Sat 2/28

6:33 am-6:50 pm

2 stops15h 17m

$471

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sat 2/14

1:30 pm-5:24 am

1 stop12h 54m

San Juan Luis Munoz Marin Intl

Sat 2/28

6:33 am-6:50 pm

2 stops15h 17m

$471

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

Thu 1/29

7:45 am-7:51 pm

2 stops15h 06m

$486

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 3/31

6:15 am-5:38 pm

1 stop9h 23m

San Juan Luis Munoz Marin Intl

Thu 4/9

1:40 pm-9:22 pm

1 stop9h 42m

$540

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 3/31

1:35 pm-5:28 am

1 stop13h 53m

San Juan Luis Munoz Marin Intl

Wed 4/8

11:59 pm-1:03 pm

1 stop15h 04m

$541

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Wed 1/21

5:15 pm-2:10 pm

2 stops17h 55m

$204

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Wed 1/21

7:20 am-10:26 pm

1 stop12h 06m

$276

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/1

Showing 1-10 of 11 results
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Best time to book a flight from Boise to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico 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 Puerto Rico

What is the cheapest month to book a flight from Boise to Puerto Rico?

Currently, June is the cheapest month in which you can book a flight from Boise to Puerto Rico (average of $219). Flying from Boise to Puerto Rico in August is currently the most expensive (average of $503). 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.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated January 3, 2026.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Boise to Puerto Rico. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

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
8.0
Very good
4,257 reviews
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

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
8,024 reviews
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

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
9,137 reviews
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

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
11,081 reviews
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

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 Puerto Rico. 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 Puerto Rico?

    Boise Air Term. Gowen Fld (BOI) is the airport you will fly out of if you book a flight from Boise to Puerto Rico. It is only a 3.3 mi journey to Air Term. Gowen Fld (BOI) from Boise’s city center.

  • How long is the flight from Boise to Puerto Rico?

    American Airlines and Delta can get you from Boise to Puerto Rico in just under 10h 17m. Your travel time can differ by up to 6h 02m. The distance from Boise to Puerto Rico is about 3374 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Boise to Puerto Rico?

    The most popular route from Boise to Puerto Rico is Boise Air Term. Gowen Fld - San Juan Luis Munoz Marin Intl. You may also consider Boise Air Term. Gowen Fld - Vieques or Boise Air Term. Gowen Fld - Culebra.

  • Can I find deals for flights from Boise to Puerto Rico that include hotel bookings?

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

  • How can I find direct flights from Boise to Puerto Rico?

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

  • Can I find deals for business class flights from Boise to Puerto Rico?

    Yes. Cheapflights offers flight deals from Boise to Puerto Rico 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 Puerto Rico?

    Currently, June is the cheapest month in which you can book a flight from Boise to Puerto Rico (average of $219). Flying from Boise to Puerto Rico in August is currently the most expensive (average of $503). 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 Boise to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Boise to Puerto Rico

Discover the top 4 airlines that operate flights from Boise to Puerto Rico. 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 January 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$338Average$585FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$449Average$913FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$463Average$629FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$530Average$688FlexibilityNo cancel feeOn-time71%

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