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San Juan

$198+ 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
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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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 January 21, 2025.

Round-trip from

$261
(FlightHub)

One-way from

$198
(American Airlines)

Popular in

March

Cheapest in

October

Average price

$533
From Boise Air Term. Gowen Fld to San Juan
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One-way flight from Boise Air Term. Gowen Fld to San Juan
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Highest demand for flights based on searches. 14% potential increase in price ($112 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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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 January 21, 2025.

This FlightHub deal was found by Cheapflights users on 1/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/257:41 pmBOI - SJU
2 stops18h 20mSpirit Airlines
Tue 3/45:56 pmSJU - BOI
2 stops21h 36mSpirit Airlines
Deal found 1/21$261
This Orbitz deal was found by Cheapflights users on 1/19. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/41:23 pmBOI - SJU
1 stop12h 46mMultiple Airlines
Tue 3/1112:05 pmSJU - BOI
2 stops26h 27mMultiple Airlines
Deal found 1/19$377
This Delta deal was found by Cheapflights users on 1/21. 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 4/147:55 pmBOI - SJU
2 stops13h 55mDelta
Thu 4/242:35 pmSJU - BOI
1 stop10h 06mDelta
Deal found 1/21$395
This American Airlines deal was found by Cheapflights users on 1/21. 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 2/267:05 amBOI - SJU
2 stops13h 50mAmerican Airlines
Tue 3/46:29 pmSJU - BOI
2 stops21h 01mAmerican Airlines
Deal found 1/21$420
This United Airlines deal was found by Cheapflights users on 1/21. 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.
Tue 3/46:58 pmBOI - SJU
2 stops15h 19mUnited Airlines
Mon 3/101:05 amSJU - BOI
2 stops14h 23mUnited Airlines
Deal found 1/21$424
This Southwest deal was found by Cheapflights users on 1/21. 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.
Tue 4/157:45 amBOI - SJU
2 stops12h 45mSouthwest
Tue 4/226:05 amSJU - BOI
2 stops19h 25mSouthwest
Deal found 1/21$455
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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.
Mon 4/148:59 pmBOI - SJU
2 stops14h 51mAlaska Airlines
Tue 4/226:01 amSJU - BOI
1 stop18h 11mAlaska Airlines
Deal found 1/21$550

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 2/25

7:41 pm-5:01 pm

2 stops18h 20m

San Juan Luis Munoz Marin Intl

Tue 3/4

5:56 pm-12:32 pm

2 stops21h 36m

$261

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 4/14

7:55 pm-11:50 am

2 stops13h 55m

San Juan Luis Munoz Marin Intl

Thu 4/24

2:35 pm-10:41 pm

1 stop10h 06m

$395

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Wed 2/26

7:05 am-11:55 pm

2 stops13h 50m

San Juan Luis Munoz Marin Intl

Tue 3/4

6:29 pm-12:30 pm

2 stops21h 01m

$420

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 4/15

7:45 am-10:30 pm

2 stops12h 45m

San Juan Luis Munoz Marin Intl

Tue 4/22

6:05 am-11:30 pm

2 stops19h 25m

$455

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 2/24

6:58 pm-12:47 pm

2 stops14h 49m

San Juan Luis Munoz Marin Intl

Mon 3/3

2:05 am-4:16 pm

2 stops17h 11m

$485

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 4/14

8:59 pm-1:50 pm

2 stops14h 51m

San Juan Luis Munoz Marin Intl

Tue 4/22

6:01 am-10:12 pm

1 stop18h 11m

$550

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 4/15

1:23 pm-4:50 am

1 stop13h 27m

San Juan Luis Munoz Marin Intl

Mon 4/21

1:10 am-8:49 pm

2 stops21h 39m

$665

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 4/8

5:20 pm-10:50 am

2 stops15h 30m

$198

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 4/8

9:40 am-4:50 am

3 stops17h 10m

$490

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

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 January 17, 2025.

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 $378). 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 January 21, 2025.

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 January 21, 2025.
Read reviews from past customers who have flown United Airlines and Delta 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
4,662 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Overall

8.1

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
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Overall

8.1

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
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Overall

8.1

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
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Overall

8.1

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
8,985 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Overall

8.1

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
4,662 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Overall

8.1

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 $261, was found to be the cheapest airline from Boise to San Juan.Alternate airlines to your destination round-trip include Delta and American Airlines. Spirit Airlines is priced at 61% lower than the current average price of a flight leaving 3 months from now.

  • 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 $378). 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.

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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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$253Average$424FlexibilityNo cancel feeOn-time65%
DeltaCheapest$374Average$539FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$423Average$689FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$452Average$674FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$484Average$823FlexibilityNo cancel feeOn-time69%
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