HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Puerto Rico

$198+ 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJU
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boise to Puerto Rico with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 8, 2026.

Round-trip from

$396
(Delta)

One-way from

$198
(United Airlines)

Popular in

March

Cheapest in

September

Average price

$544
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. 1% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find 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 8, 2026.

This Delta deal was found by Cheapflights users on 1/6. 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 4/2011:36 pmBOI - SJU
1 stop11h 38mDelta
Wed 4/297:00 amSJU - BOI
2 stops17h 10mDelta
Deal found 1/6$396
This United Airlines deal was found by Cheapflights users on 1/7. 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 4/207:03 pmBOI - SJU
2 stops15h 31mUnited Airlines
Fri 4/241:00 amSJU - BOI
2 stops12h 49mUnited Airlines
Deal found 1/7$427
This United Airlines deal was found by Cheapflights users on 1/7. 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 4/226:15 amBOI - SJU
1 stop9h 23mUnited Airlines
Tue 4/287:00 amSJU - BOI
2 stops15h 13mUnited Airlines
Deal found 1/7$430
This American Airlines deal was found by Cheapflights users on 1/7. 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 3/251:39 pmBOI - SJU
1 stop13h 49mAmerican Airlines
Wed 4/16:33 amSJU - BOI
1 stop17h 50mAmerican Airlines
Deal found 1/7$432
This United Airlines deal was found by Cheapflights users on 1/6. 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 5/25:00 amBOI - SJU
2 stops13h 34mUnited Airlines
Tue 5/121:40 pmSJU - BOI
1 stop9h 36mUnited Airlines
Deal found 1/6$438
This Southwest deal was found by Cheapflights users on 1/6. 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 4/304:20 pmBOI - SJU
2 stops14h 50mSouthwest
Thu 5/76:50 amSJU - BOI
2 stops18h 40mSouthwest
Deal found 1/6$439
This Southwest deal was found by Cheapflights users on 1/6. 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.
Wed 4/296:00 amBOI - SJU
2 stops13h 05mSouthwest
Thu 5/78:40 pmSJU - BOI
2 stops18h 00mSouthwest
Deal found 1/6$451
This United Airlines deal was found by Cheapflights users on 1/5. 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 11/77:00 amBOI - SJU
2 stops12h 22mUnited Airlines
Sat 11/148:30 amSJU - BOI
2 stops12h 25mUnited Airlines
Deal found 1/5$452
This Southwest deal was found by Cheapflights users on 1/7. 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.
Wed 4/226:00 amBOI - SJU
2 stops13h 05mSouthwest
Mon 4/275:35 amSJU - BOI
2 stops15h 40mSouthwest
Deal found 1/7$457
This United Airlines deal was found by Cheapflights users on 1/6. 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 3/256:15 amBOI - SJU
2 stops12h 11mUnited Airlines
Wed 4/17:00 amSJU - BOI
2 stops15h 13mUnited Airlines
Deal found 1/6$458
This Delta deal was found by Cheapflights users on 1/8. 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 4/288:01 pmBOI - SJU
2 stops14h 49mDelta
Wed 5/66:15 amSJU - BOI
2 stops16h 36mDelta
Deal found 1/8$461
This American Airlines deal was found by Cheapflights users on 1/5. 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 1/5$471

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 8, 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

Thu 5/7

6:15 am-5:38 pm

1 stop9h 23m

San Juan Luis Munoz Marin Intl

Tue 5/12

7:20 am-9:16 pm

2 stops15h 56m

$396

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 4/20

11:36 pm-1:14 pm

1 stop11h 38m

San Juan Luis Munoz Marin Intl

Wed 4/29

7:00 am-10:10 pm

2 stops17h 10m

$396

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Wed 5/6

6:15 am-5:38 pm

1 stop9h 23m

San Juan Luis Munoz Marin Intl

Tue 5/12

1:00 am-1:30 pm

2 stops14h 30m

$396

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 4/20

7:03 pm-12:34 pm

2 stops15h 31m

San Juan Luis Munoz Marin Intl

Fri 4/24

1:00 am-11:49 am

2 stops12h 49m

$427

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Wed 3/25

6:38 am-10:31 pm

2 stops13h 53m

San Juan Luis Munoz Marin Intl

Wed 4/1

6:33 am-10:23 pm

1 stop17h 50m

$432

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Wed 4/22

6:00 am-9:05 pm

2 stops13h 05m

San Juan Luis Munoz Marin Intl

Tue 4/28

11:25 am-12:25 am

2 stops15h 00m

$432

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sat 5/2

5:00 am-8:34 pm

2 stops13h 34m

San Juan Luis Munoz Marin Intl

Tue 5/12

1:40 pm-9:16 pm

1 stop9h 36m

$438

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Thu 4/30

4:20 pm-9:10 am

2 stops14h 50m

San Juan Luis Munoz Marin Intl

Thu 5/7

6:50 am-11:30 pm

2 stops18h 40m

$439

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Wed 4/29

6:00 am-9:05 pm

2 stops13h 05m

San Juan Luis Munoz Marin Intl

Thu 5/7

8:40 pm-12:40 pm

2 stops18h 00m

$451

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Wed 5/6

6:00 am-9:05 pm

2 stops13h 05m

San Juan Luis Munoz Marin Intl

Wed 5/13

11:25 am-11:30 pm

2 stops14h 05m

$457

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 22 results
1
2
3

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 8, 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
4,248 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

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
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

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
8,025 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

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
9,139 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

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
11,095 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

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?

    United Airlines, Delta, and American Airlines can get you from Boise to Puerto Rico in just under 9h 23m. Your travel time can differ by up to 4h 30m. 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boise to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
Boise to Luis Munoz Marin Intl flights
Spokane to Luis Munoz Marin Intl flights
Boise to Saint Thomas Island flights
Boise to Nassau flights
Spokane to Montego Bay flights
Boise to Punta Cana flights
Spokane to Punta Cana flights
Spokane to Providenciales flights
Spokane to Nassau flights
Boise to Santo Domingo flights
Boise to Montego Bay flights
Boise to Bridgetown flights
Boise to Oranjestad flights
Spokane to Bridgetown flights
Boise to George Town flights
Boise to Havana flights
Spokane to Santo Domingo flights
Spokane to Puerto Plata flights
Boise to Castries flights
Spokane to George Town flights
Boise to Georgetown flights
Boise to Kralendijk flights
Jackson to Saint Thomas Island flights
Boise to Vieques flights
Spokane to Oranjestad flights
Boise to Holguín flights
Idaho Falls to Providenciales flights
Spokane to Santiago de los Caballeros flights
Boise to Port of Spain flights
Boise to Marsh Harbour flights
Boise to St. George's flights
Boise to Port Royal flights
Spokane to Havana flights
Boise to Freeport flights

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 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$338Average$585FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$449Average$896FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$473Average$636FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$530Average$688FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.