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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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJU
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
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 August 18, 2025.

Round-trip from

$332
(FlightHub)

One-way from

$188
(Delta)

Popular in

December

Cheapest in

October

Average price

$606
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. 5% potential increase in price ($39 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 18, 2025.

This FlightHub deal was found by Cheapflights users on 8/16. 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.
Sat 9/62:16 pmBOI - SJU
2 stops21h 27mSpirit Airlines
Thu 9/112:38 pmSJU - BOI
2 stops31h 53mSpirit Airlines
Deal found 8/16$332
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Tue 9/231:57 pmBOI - SJU
2 stops19h 14mAmerican Airlines
Tue 9/306:10 amSJU - BOI
2 stops15h 52mAmerican Airlines
Deal found 8/17$411
This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/62:16 pmBOI - SJU
2 stops21h 27mSpirit Airlines
Sat 9/136:44 amSJU - BOI
2 stops32h 37mSpirit Airlines
Deal found 8/17$434
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/137:05 pmGEG - SJU
2 stops13h 51mDelta
Thu 10/307:00 amSJU - GEG
2 stops18h 48mDelta
Deal found 8/17$439
This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:48 pmBOI - SJU
2 stops36h 52mSpirit Airlines
Sun 11/95:28 pmSJU - BOI
2 stops20h 55mSpirit Airlines
Deal found 8/17$449
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:07 pmGEG - SJU
2 stops13h 33mDelta
Wed 12/102:26 pmSJU - GEG
2 stops13h 52mDelta
Deal found 8/17$468
This United Airlines deal was found by Cheapflights users on 8/16. 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 9/67:00 amBOI - SJU
1 stop8h 30mUnited Airlines
Wed 9/101:05 amSJU - BOI
2 stops17h 53mUnited Airlines
Deal found 8/16$484
This Southwest deal was found by Cheapflights users on 8/17. 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.
Thu 11/65:00 amBOI - SJU
2 stops14h 20mSouthwest
Tue 11/1111:20 amSJU - BOI
2 stops14h 50mSouthwest
Deal found 8/17$488
This Southwest deal was found by Cheapflights users on 8/15. 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.
Sun 10/193:50 pmBOI - SJU
2 stops15h 15mSouthwest
Sun 10/265:05 amSJU - BOI
2 stops14h 05mSouthwest
Deal found 8/15$511
This Delta deal was found by Cheapflights users on 8/16. 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 9/75:00 amGEG - SJU
2 stops15h 51mDelta
Wed 9/107:00 amSJU - GEG
2 stops20h 02mDelta
Deal found 8/16$512
This American Airlines deal was found by Cheapflights users on 8/16. 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.
Sun 12/141:40 pmGEG - SJU
2 stops19h 45mAmerican Airlines
Mon 1/126:50 pmSJU - GEG
2 stops22h 09mAmerican Airlines
Deal found 8/16$521
This Mytrip deal was found by Cheapflights users on 8/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/49:06 pmGEG - SJU
2 stops18h 28mMultiple Airlines
Wed 9/103:19 pmSJU - GEG
3 stops31h 57mMultiple Airlines
Deal found 8/17$575

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 August 18, 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

Sat 9/6

2:16 pm-1:43 pm

2 stops21h 27m

San Juan Luis Munoz Marin Intl

Thu 9/11

2:38 pm-8:31 pm

2 stops31h 53m

$332

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sun 2/1

7:00 pm-1:35 pm

2 stops15h 35m

San Juan Luis Munoz Marin Intl

Fri 2/6

12:40 pm-10:15 pm

2 stops12h 35m

$411

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Sat 1/24

3:05 pm-1:07 pm

2 stops18h 02m

San Juan Luis Munoz Marin Intl

Mon 2/2

2:12 pm-12:20 am

2 stops14h 08m

$411

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 9/23

1:57 pm-11:11 am

2 stops19h 14m

San Juan Luis Munoz Marin Intl

Tue 9/30

6:10 am-8:02 pm

2 stops15h 52m

$411

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Sat 1/24

3:51 pm-11:45 am

2 stops15h 54m

San Juan Luis Munoz Marin Intl

Mon 2/2

6:45 am-8:45 pm

1 stop18h 00m

$411

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sat 9/6

2:16 pm-1:43 pm

2 stops21h 27m

San Juan Luis Munoz Marin Intl

Sat 9/13

6:44 am-1:21 pm

2 stops32h 37m

$434

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Mon 10/13

7:05 pm-11:56 am

2 stops13h 51m

San Juan Luis Munoz Marin Intl

Thu 10/30

7:00 am-10:48 pm

2 stops18h 48m

$439

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Mon 10/13

3:10 pm-11:06 am

2 stops16h 56m

San Juan Luis Munoz Marin Intl

Thu 10/30

3:10 pm-10:20 pm

1 stop10h 10m

$442

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Thu 11/6

12:48 pm-4:40 am

2 stops36h 52m

San Juan Luis Munoz Marin Intl

Sun 11/9

5:28 pm-11:23 am

2 stops20h 55m

$449

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Mon 12/1

7:07 pm-12:40 pm

2 stops13h 33m

San Juan Luis Munoz Marin Intl

Wed 12/10

2:26 pm-12:18 am

2 stops13h 52m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 45 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, September is the cheapest month in which you can book a flight from Idaho to Puerto Rico (average of $254). Flying from Idaho to Puerto Rico in June is currently the most expensive (average of $339). 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 August 18, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Puerto Rico as you normally would.

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 $411, Spirit Airlines can have you in Puerto Rico from Idaho in 15h 35m. Idaho and Puerto Rico are separated by a distance of 3374 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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, September is the cheapest month in which you can book a flight from Idaho to Puerto Rico (average of $254). Flying from Idaho to Puerto Rico in June is currently the most expensive (average of $339). 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 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
John F Kennedy Intl to Santo Domingo flights
LaGuardia to Luis Munoz Marin Intl flights
John F Kennedy Intl to Montego Bay flights
John F Kennedy Intl to Santiago de los Caballeros flights
Newark to Santiago de los Caballeros flights
John F Kennedy Intl to Punta Cana flights
Newark to Oranjestad flights
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Newark to Punta Cana flights
O'Hare Intl to Luis Munoz Marin Intl flights
Newark to Santo Domingo flights
Newark to Montego Bay flights
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Dulles Intl to Luis Munoz Marin Intl flights
Atlanta to Luis Munoz Marin Intl flights
Reagan-National to Luis Munoz Marin Intl flights
John F Kennedy Intl to Port of Spain flights
Atlanta to Montego Bay flights
Tampa to Luis Munoz Marin Intl flights
LaGuardia to Oranjestad flights
Boston to Santo Domingo flights
Miami to Luis Munoz Marin Intl flights
Newark to Nassau flights
LaGuardia to Punta Cana flights
Denver to Luis Munoz Marin Intl flights
Newark to Simpson Bay flights
John F Kennedy Intl to Bridgetown flights
Boston to Oranjestad flights
Dulles Intl to Punta Cana flights
John F Kennedy Intl to Nassau flights
Hartford to Luis Munoz Marin Intl flights
LaGuardia to Montego Bay flights
Midway to Luis Munoz Marin Intl flights
LaGuardia to Santo Domingo flights
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Newark to Providenciales flights
Los Angeles to Luis Munoz Marin Intl flights
Detroit to Luis Munoz Marin Intl flights
Boston to Punta Cana flights
George Bush Intcntl to Luis Munoz Marin Intl flights
Atlanta to Punta Cana flights
Raleigh to Luis Munoz Marin Intl 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$338Average$556FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$484Average$878FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$495Average$665FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$570Average$735FlexibilityNo cancel feeOn-time71%

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