HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Juan

$192+ Cheap flights from Boise (BOI) to San Juan

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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJU
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boise to San Juan 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.

The best prices from Boise Air Term. Gowen Fld to San Juan are usually found in October or January, booked 12 days in advance, depart on a Monday or Thursday and return on a Monday

Cheap flight deals from Boise to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2024.

Round-trip from

$312
(CheapOair)

One-way from

$192
(American Airlines)

Popular in

March

Cheapest in

October

Average price

$770
From Boise Air Term. Gowen Fld to San Juan
Search Deals
One-way flight from Boise Air Term. Gowen Fld to San Juan
Search Deals
High demand for flights, 14% potential price rise
Search Deals
Best time to find cheap flights, 5% potential price drop
Search Deals
Average for round-trip flights in December 2024
Search Deals

Find flight deals from Boise to San Juan

Cheapest flights from Boise to San Juan
Explore the most affordable flight options available from Boise to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This CheapOair deal was found by Cheapflights users on 12/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2611:57 amBOI - SJU
2 stops26h 43mSpirit Airlines
Mon 3/38:30 pmSJU - BOI
2 stops51h 19mSpirit Airlines
Deal found 12/18$773
This Delta deal was found by Cheapflights users on 12/18. 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 12/265:10 pmBOI - SJU
2 stops16h 49mDelta
Mon 3/34:10 pmSJU - BOI
1 stop10h 48mDelta
Deal found 12/18$909
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.
Wed 12/252:55 pmBOI - SJU
2 stops16h 30mSouthwest
Tue 12/316:10 amSJU - BOI
2 stops18h 40mSouthwest
Deal found 12/17$959
This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/196:30 amBOI - SJU
2 stops15h 06mUnited Airlines
Tue 12/313:46 pmSJU - BOI
2 stops21h 15mUnited Airlines
Deal found 12/17$1,154
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.
Wed 12/256:40 amBOI - SJU
2 stops13h 30mAmerican Airlines
Mon 12/301:30 amSJU - BOI
1 stop14h 03mAmerican Airlines
Deal found 12/17$1,232
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/269:53 amBOI - SJU
3 stops16h 17mAlaska Airlines
Mon 3/36:30 amSJU - BOI
2 stops20h 29mAlaska Airlines
Deal found 12/17$1,712

Find flights from Boise to San Juan within your budget

Customize your flight search to find flights from Boise to San Juan 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, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 2/18

7:17 pm-5:19 pm

2 stops19h 02m

San Juan Luis Munoz Marin Intl

Sat 2/22

6:14 pm-6:18 pm

2 stops27h 04m

$312

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 1/28

7:00 am-12:04 am

2 stops14h 04m

San Juan Luis Munoz Marin Intl

Tue 2/4

6:20 pm-12:37 pm

2 stops21h 17m

$384

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Thu 1/16

10:39 am-3:58 pm

3 stops26h 19m

San Juan Luis Munoz Marin Intl

Wed 1/22

8:40 pm-6:43 pm

3 stops25h 03m

$461

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 1/28

7:00 am-6:25 pm

1 stop8h 25m

San Juan Luis Munoz Marin Intl

Mon 2/3

2:05 am-4:27 pm

2 stops17h 22m

$474

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 1/7

7:30 pm-4:55 pm

2 stops18h 25m

San Juan Luis Munoz Marin Intl

Tue 1/14

7:00 am-5:02 pm

2 stops13h 02m

$534

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Wed 3/19

8:59 pm-1:56 pm

2 stops14h 57m

San Juan Luis Munoz Marin Intl

Wed 3/26

6:05 am-10:56 pm

3 stops18h 51m

$977

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 4/8

1:43 pm-5:00 am

2 stops13h 17m

$192

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Wed 1/8

5:59 pm-11:28 am

2 stops14h 29m

$198

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 1/6

11:57 am-1:35 am

2 stops34h 38m

$211

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 1/14

8:00 am-12:36 am

2 stops13h 36m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 12 results
1
2

Best time to book a flight from Boise to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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.

Travel insights for flights from Boise to San Juan

Get recent, data-driven insights about flights from Boise to San Juan including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Boise to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from Boise to San Juan. Price data was last updated on December 13, 2024.

The best time to book flights from Boise to San Juan is 12 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Boise to San Juan?

Currently, September is the cheapest month in which you can book a flight from Boise to San Juan (average of $254). Flying from Boise to San Juan in March is currently the most expensive (average of $334). 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 SJU?

Find hourly flight availability from Boise to San Juan. 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, 2024.

When flying from Boise to San Juan, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 29% versus a flight in the morning.

What is the cheapest day to fly from Boise to San Juan?

Use this chart to determine the cheapest time to fly round-trip from Boise to San Juan. Price data was last updated on February 18, 2024.

Travelers seeking maximum savings on their Boise to San Juan 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.

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan 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 San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, 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 San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated December 18, 2024.
Read reviews from past customers who have flown Alaska Airlines, Spirit Airlines and American Airlines from Boise to San Juan. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,848 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,554 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,604 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
9,055 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Boise to San Juan. 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 San Juan?

    For a flight from Boise to San Juan, you will be flying from Air Term. Gowen Fld. Boise Air Term. Gowen Fld (BOI) is just 3.3 mi from the center of the city. Air Term. Gowen Fld is the only Boise airport and it handles 0 outbound flights to San Juan per day. 5 airlines have flights to San Juan from Boise Air Term. Gowen Fld on a regular basis.

  • What are the cheapest airlines flying from Boise to San Juan round-trip?

    Spirit Airlines, at $312, was found to be the cheapest airline from Boise to San Juan.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Spirit Airlines is priced at 53% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Boise to San Juan one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $192. Users have also found prices from $198 and $211 on Delta and Spirit Airlines, respectively.

  • Can I find deals for flights from Boise to San Juan that include hotel bookings?

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

  • How can I find direct flights from Boise to San Juan?

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

  • Can I find deals for business class flights from Boise to San Juan?

    Yes. Cheapflights offers flight deals from Boise to San Juan 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 San Juan?

    Currently, September is the cheapest month in which you can book a flight from Boise to San Juan (average of $254). Flying from Boise to San Juan in March is currently the most expensive (average of $334). 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 San Juan

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 Vieques flights

Top 5 airlines flying from Boise to San Juan

Discover the top 5 airlines that operate flights from Boise to San Juan. 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, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$253Average$388FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$374Average$674FlexibilityNo cancel feeOn-time71%
DeltaCheapest$374Average$553FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$484Average$830FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$504Average$689FlexibilityNo cancel feeOn-time63%
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.