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Puerto Rico

$188+ Cheap flights from Idaho 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJU
Nov 9 — Nov 161
Sun 11/9
Sun 11/16
1 adult, Economy
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Cheap flight deals from Idaho to Puerto Rico

Keep the following information in mind while searching for Idaho to Puerto Rico flight deals. Data was last updated October 10, 2025.

Round-trip from

$395
(Delta)

One-way from

$188
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$546
From Idaho to Puerto Rico
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One-way flight from Idaho to Puerto Rico
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Highest demand for flights based on searches. 2% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Idaho to Puerto Rico

Cheapest flights from Idaho to Puerto Rico
Explore the most affordable flight options available from Idaho to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 10, 2025.

This Delta deal was found by Cheapflights users on 10/9. 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 11/85:55 pmBOI - SJU
2 stops20h 25mDelta
Thu 11/207:15 amSJU - BOI
2 stops14h 39mDelta
Deal found 10/9$395
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:33 pmGEG - SJU
2 stops19h 33mAmerican Airlines
Tue 11/47:15 amSJU - GEG
1 stop13h 27mAmerican Airlines
Deal found 10/8$425
This Southwest deal was found by Cheapflights users on 10/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/95:15 amBOI - SJU
2 stops13h 15mSouthwest
Mon 12/152:05 pmSJU - BOI
2 stops12h 05mSouthwest
Deal found 10/8$431
This Delta deal was found by Cheapflights users on 10/9. 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.
Fri 10/316:00 amBOI - SJU
2 stops13h 59mDelta
Tue 11/47:00 amSJU - BOI
2 stops16h 16mDelta
Deal found 10/9$438
This Delta deal was found by Cheapflights users on 10/9. 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 11/85:55 pmBOI - SJU
2 stops20h 25mDelta
Sat 11/154:50 pmSJU - BOI
1 stop10h 19mDelta
Deal found 10/9$439
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/185:25 amGEG - SJU
1 stop12h 10mAmerican Airlines
Wed 11/2611:00 amSJU - GEG
2 stops15h 58mAmerican Airlines
Deal found 10/8$465
This American Airlines deal was found by Cheapflights users on 10/9. 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 11/82:16 pmBOI - SJU
2 stops17h 01mAmerican Airlines
Mon 11/177:15 amSJU - BOI
1 stop18h 17mAmerican Airlines
Deal found 10/9$470
This Delta deal was found by Cheapflights users on 10/9. 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.
Sun 11/911:35 pmBOI - SJU
1 stop10h 11mDelta
Tue 11/183:20 pmSJU - BOI
2 stops12h 15mDelta
Deal found 10/9$475
This United Airlines deal was found by Cheapflights users on 10/9. 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 11/86:15 amBOI - SJU
1 stop9h 10mUnited Airlines
Wed 11/198:10 amSJU - BOI
2 stops16h 11mUnited Airlines
Deal found 10/9$485
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Fri 10/315:00 amBOI - SJU
1 stop10h 25mUnited Airlines
Mon 11/32:05 amSJU - BOI
2 stops14h 20mUnited Airlines
Deal found 10/9$486
This Delta deal was found by Cheapflights users on 10/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/275:25 amBOI - SJU
2 stops16h 31mDelta
Wed 10/297:00 amSJU - BOI
2 stops19h 08mDelta
Deal found 10/7$490
This Southwest deal was found by Cheapflights users on 10/7. 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.
Fri 10/316:35 amGEG - SJU
2 stops12h 15mSouthwest
Fri 11/711:55 amSJU - GEG
2 stops16h 30mSouthwest
Deal found 10/7$505

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho 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 October 10, 2025.
Use the filters below to find and compare flights from Idaho to Puerto Rico that are best for you.

Fly from

Idaho

Fly to

Puerto Rico

Route

Depart

Return

Price

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 11/10

5:58 pm-12:56 pm

2 stops15h 58m

San Juan Luis Munoz Marin Intl

Thu 11/20

7:15 am-10:22 pm

2 stops18h 07m

$395

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Tue 11/18

5:25 am-9:35 pm

1 stop12h 10m

San Juan Luis Munoz Marin Intl

Wed 11/26

7:15 am-10:58 pm

1 stop19h 43m

$425

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 12/9

5:15 am-9:30 pm

2 stops13h 15m

San Juan Luis Munoz Marin Intl

Mon 12/15

2:05 pm-11:10 pm

2 stops12h 05m

$431

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Tue 2/17

5:00 am-6:25 pm

1 stop9h 25m

San Juan Luis Munoz Marin Intl

Tue 2/24

8:35 am-9:09 pm

2 stops16h 34m

$447

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Sat 1/24

6:00 am-10:22 pm

1 stop12h 22m

San Juan Luis Munoz Marin Intl

Mon 2/2

6:00 am-6:49 pm

2 stops16h 49m

$467

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 3/10

5:00 am-5:25 pm

1 stop10h 25m

San Juan Luis Munoz Marin Intl

Tue 3/10

1:05 am-1:30 pm

2 stops14h 25m

$480

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 12/9

8:15 am-9:00 pm

1 stop9h 45m

San Juan Luis Munoz Marin Intl

Tue 12/16

7:45 am-9:25 pm

2 stops16h 40m

$485

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sat 3/7

6:00 pm-4:29 pm

2 stops19h 29m

San Juan Luis Munoz Marin Intl

Wed 3/11

1:10 pm-10:50 pm

1 stop11h 40m

$490

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 10/27

6:15 am-5:25 pm

1 stop9h 10m

San Juan Luis Munoz Marin Intl

Tue 10/28

1:05 am-1:29 pm

2 stops14h 24m

$490

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Fri 10/31

6:35 am-9:50 pm

2 stops12h 15m

San Juan Luis Munoz Marin Intl

Fri 11/7

11:55 am-12:25 am

2 stops16h 30m

$505

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

Showing 1-10 of 33 results
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Best time to book a flight from Idaho to Puerto Rico

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

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

Currently, June is the cheapest month in which you can book a flight from Idaho to Puerto Rico (average of $216). Flying from Idaho to Puerto Rico in July is currently the most expensive (average of $504). 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 ID to PR?

Find hourly flight availability from Idaho to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 10, 2025.

It’s typically best to fly out from Idaho to Puerto Rico in the evening. Doing so could potentially save you 49% on the flight price compared to flying in the morning, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For as low as $425, Delta can have you in Puerto Rico from Idaho in 12h 10m. Idaho and Puerto Rico are separated by a distance of 3511 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Idaho to Puerto Rico one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $188. Delta flights start at $198 while deals on American Airlines start at $213 one-way.

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

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

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

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

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

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

    Currently, June is the cheapest month in which you can book a flight from Idaho to Puerto Rico (average of $216). Flying from Idaho to Puerto Rico in July is currently the most expensive (average of $504). 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 Idaho to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Luis Munoz Marin Intl flights
Newark to Luis Munoz Marin Intl flights
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John F Kennedy Intl to Oranjestad flights
Dallas/Fort Worth to Luis Munoz Marin Intl flights
Boston to Santo Domingo flights
Tampa to Luis Munoz Marin Intl flights
Hartford to Luis Munoz Marin Intl flights
LaGuardia to Punta Cana flights
John F Kennedy Intl to Kingston flights
LaGuardia to Santo Domingo flights
John F Kennedy Intl to Port of Spain flights
O'Hare Intl to Punta Cana flights
Raleigh to Luis Munoz Marin Intl flights
Newark to Simpson Bay flights
Atlanta to Montego Bay flights
Boston to Oranjestad flights
Dulles Intl to Punta Cana flights
Fort Lauderdale to Luis Munoz Marin Intl flights
LaGuardia to Montego Bay flights
Orlando to Punta Cana flights
Miami to Santo Domingo flights
Hobby to Luis Munoz Marin Intl flights
Boston to Punta Cana flights
John F Kennedy Intl to Simpson Bay flights
Minneapolis to Luis Munoz Marin Intl flights
LaGuardia to Santiago de los Caballeros flights
Miami to Punta Cana flights
Newark to Nassau flights
Newark to Saint Thomas Island flights
Atlanta to Punta Cana flights
Newark to Providenciales flights
Fort Lauderdale to Santo Domingo flights

Top 4 airlines flying from Idaho to Puerto Rico

Discover the top 4 airlines that operate flights from Idaho 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 October 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$368Average$595FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$469Average$890FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$480Average$657FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$530Average$674FlexibilityNo cancel feeOn-time71%

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