$198 Cheap Flights from San Juan (SJU) to Boise (BOI)

View $198 flight on Tue, May 5, 2026Opens in a new window

Popular airlines from Luis Munoz Marin Intl. Airport (SJU) to Boise Airport (BOI)

Cheap Flights from San Juan to Boise (SJU-BOI)

Prices were available within the past 7 days and start at $198 for one-way flights and $395 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Feb 19 - Mon, Mar 2
SJU
San Juan
BOI
Boise
$395 Roundtrip, found 1 day ago
$395
Roundtrip
found 1 day ago
Select United flight, departing Thu, Feb 19 from San Juan to Boise, returning Mon, Mar 2, priced at $395 found 1 day ago
Southwest Airlines
Fri, May 8 - Sun, May 10
SJU
San Juan
BOI
Boise
$395 Roundtrip, found 12 hours ago
$395
Roundtrip
found 12 hours ago
Select Southwest Airlines flight, departing Fri, May 8 from San Juan to Boise, returning Sun, May 10, priced at $395 found 12 hours ago
Southwest Airlines
Sun, May 3 - Sun, May 10
SJU
San Juan
BOI
Boise
$401 Roundtrip, found 5 days ago
$401
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Sun, May 3 from San Juan to Boise, returning Sun, May 10, priced at $401 found 5 days ago
Southwest Airlines
Fri, May 8 - Sun, May 10
SJU
San Juan
BOI
Boise
$413 Roundtrip, found 12 hours ago
$413
Roundtrip
found 12 hours ago
Select Southwest Airlines flight, departing Fri, May 8 from San Juan to Boise, returning Sun, May 10, priced at $413 found 12 hours ago
American Airlines
Mon, Feb 23 - Mon, Mar 9
SJU
San Juan
BOI
Boise
$417 Roundtrip, found 1 day ago
$417
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Feb 23 from San Juan to Boise, returning Mon, Mar 9, priced at $417 found 1 day ago
American Airlines
Sat, Jan 31 - Sun, Feb 8
SJU
San Juan
BOI
Boise
$431 Roundtrip, found 4 days ago
$431
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Jan 31 from San Juan to Boise, returning Sun, Feb 8, priced at $431 found 4 days ago
United
Wed, Dec 24 - Sun, Jan 4
SJU
San Juan
BOI
Boise
$434 Roundtrip, found 14 hours ago
$434
Roundtrip
found 14 hours ago
Select United flight, departing Wed, Dec 24 from San Juan to Boise, returning Sun, Jan 4, priced at $434 found 14 hours ago
Southwest Airlines
Fri, May 8 - Sun, May 10
SJU
San Juan
BOI
Boise
$435 Roundtrip, found 12 hours ago
$435
Roundtrip
found 12 hours ago
Select Southwest Airlines flight, departing Fri, May 8 from San Juan to Boise, returning Sun, May 10, priced at $435 found 12 hours ago
Delta
Sat, Dec 6 - Sun, Dec 14
SJU
San Juan
BOI
Boise
$450 Roundtrip, found 4 hours ago
$450
Roundtrip
found 4 hours ago
Select Delta flight, departing Sat, Dec 6 from San Juan to Boise, returning Sun, Dec 14, priced at $450 found 4 hours ago
Alaska Airlines
Thu, Feb 26 - Fri, Mar 6
SJU
San Juan
BOI
Boise
$616 Roundtrip, found 20 hours ago
$616
Roundtrip
found 20 hours ago
Select Alaska Airlines flight, departing Thu, Feb 26 from San Juan to Boise, returning Fri, Mar 6, priced at $616 found 20 hours ago

Find the cheapest month to fly from San Juan (SJU) to Boise (BOI)

March is typically the cheapest month to fly

From $278 - $1,188 per traveler.

Alternative airports near Boise

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Boise Airport BOI. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $585
BOI
Boise Airport
CheapestClosest
Average driving time to city center8 min
Flights from $585

Frequently asked questions

How much does a flight from Luis Munoz Marin Intl. Airport (SJU) to Boise Airport (BOI) cost?
Grab a cheap one-way flight from $198 or cheap return flight from $395 from Luis Munoz Marin Intl. Airport (SJU) to Boise Airport (BOI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Luis Munoz Marin Intl. Airport (SJU) to Boise Airport (BOI)?
Planning your getaway for February can help you save, as it's the cheapest month for flights between SJU and BOI. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Luis Munoz Marin Intl. Airport (SJU) to Boise Airport (BOI)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest SJU to BOI flight.
How many flights per day from Luis Munoz Marin Intl. Airport (SJU) to Boise Airport (BOI)?
You'll have to take a flight with a layover when traveling from Luis Munoz Marin Intl. Airport (SJU) to Boise Airport (BOI). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from SJU to BOI?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on various factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Luis Munoz Marin Intl. Airport (SJU) to Boise Airport (BOI)?
Book a flight from Luis Munoz Marin Intl. Airport (SJU) to Boise Airport (BOI) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Luis Munoz Marin Intl. Airport (SJU) to Boise Airport (BOI) last-minute?
Booking your plane ticket from SJU to BOI just before your getaway is usually more expensive. However, if there's some wiggle room with your departure dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a SJU to BOI flight and hotel package?
Opting for a SJU to BOI flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our wide range of accommodations and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Luis Munoz Marin Intl. Airport (SJU) to Boise Airport (BOI)?
If you reserved your SJU to BOI flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

Travel information

Origin airport
Luis Munoz Marin Intl.
Destination airport
Boise
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$395
Distance
3375 mi

Book with confidence

San Juan to Boise Flights

The cheapest times to fly from San Juan to Boise

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Juan to Boise are during the month of February. You can find some of the cheapest flights from San Juan to Boise with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Juan to Boise

Sunday is one of the best days to book for cheap flights from San Juan to Boise: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Juan to Boise

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Juan to Boise in 2025. You can also book with separate airlines for your outbound and return journeys, from $198 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Juan to Boise flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Juan to Boise airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Juan to Boise Flights

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*Available to One Key members.