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Puerto Rico

$218+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJU
Sep 2 — Sep 91
Wed 9/2
Wed 9/9
1 adult, Economy
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Cheap 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 3, 2026.

This American Airlines deal was found by Cheapflights users on 7/29. 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 9/191:50 pm
BOI
-
SJU
2 stops17h 34m
American Airlines
Wed 9/236:00 am
SJU
-
BOI
2 stops18h 27m
American Airlines
Deal found 7/29$436
This American Airlines deal was found by Cheapflights users on 7/30. 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 9/161:52 pm
BOI
-
SJU
2 stops19h 08m
American Airlines
Sat 9/266:00 am
SJU
-
BOI
2 stops18h 27m
American Airlines
Deal found 7/30$441
This Southwest deal was found by Cheapflights users on 7/30. 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 10/256:20 pm
GEG
-
SJU
2 stops14h 35m
Southwest
Thu 10/2910:10 am
SJU
-
GEG
2 stops15h 10m
Southwest
Deal found 7/30$446
This Southwest deal was found by Cheapflights users on 7/29. 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 8/2811:30 am
BOI
-
SJU
2 stops10h 20m
Southwest
Fri 9/45:30 am
SJU
-
BOI
2 stops12h 45m
Southwest
Deal found 7/29$456
This Southwest deal was found by Cheapflights users on 7/30. 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.
Mon 10/196:30 am
GEG
-
SJU
2 stops13h 35m
Southwest
Sat 10/2410:30 am
SJU
-
GEG
2 stops13h 45m
Southwest
Deal found 7/30$486
This American Airlines deal was found by Cheapflights users on 7/30. 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 9/28:01 am
BOI
-
SJU
2 stops13h 58m
American Airlines
Mon 9/712:55 am
SJU
-
BOI
1 stop15h 34m
American Airlines
Deal found 7/30$492
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Mon 10/192:45 pm
GEG
-
SJU
2 stops16h 01m
American Airlines
Sat 10/246:00 am
SJU
-
GEG
1 stop17h 43m
American Airlines
Deal found 7/30$492
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Mon 9/217:05 pm
BOI
-
SJU
2 stops14h 52m
United Airlines
Thu 9/242:00 pm
SJU
-
BOI
1 stop9h 35m
United Airlines
Deal found 7/28$526
This Southwest deal was found by Cheapflights users on 7/30. 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 9/26:25 am
BOI
-
SJU
2 stops12h 40m
Southwest
Tue 9/811:50 am
SJU
-
BOI
2 stops13h 25m
Southwest
Deal found 7/30$527
This United Airlines deal was found by Cheapflights users on 7/29. 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 10/245:00 am
BOI
-
SJU
1 stop10h 38m
United Airlines
Wed 10/281:21 pm
SJU
-
BOI
1 stop10h 11m
United Airlines
Deal found 7/29$536
This American Airlines deal was found by Cheapflights users on 7/30. 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 10/132:02 pm
BOI
-
SJU
2 stops17h 44m
American Airlines
Sat 10/176:00 am
SJU
-
BOI
1 stop9h 51m
American Airlines
Deal found 7/30$538
This Delta deal was found by Cheapflights users on 8/2. 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.
Tue 12/15:40 pm
GEG
-
SJU
2 stops16h 40m
Delta
Wed 12/234:19 pm
SJU
-
GEG
1 stop10h 43m
Delta
Deal found 8/2$538

Find 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 3, 2026.

Round-trip from

$436
(American Airlines)

One-way from

$218
(Southwest)

Popular in

November

Cheapest in

September

Average price

$581
From Idaho to Puerto Rico
Search Deals
One-way flight from Idaho to Puerto Rico
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($7 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

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 3, 2026.
Use the filters below to find and compare flights from Idaho to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Sun 10/25

6:20 pm-11:55 am

2 stops14h 35m

San Juan Luis Munoz Marin Intl

Thu 10/29

10:10 am-10:20 pm

2 stops15h 10m

$446

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 9/21

7:05 pm-11:57 am

2 stops14h 52m

San Juan Luis Munoz Marin Intl

Thu 9/24

2:00 pm-9:35 pm

1 stop9h 35m

$526

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Mon 1/18

4:05 pm-1:05 pm

2 stops18h 00m

San Juan Luis Munoz Marin Intl

Thu 2/4

3:20 pm-11:55 pm

1 stop11h 35m

$536

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sat 10/24

6:25 am-11:50 pm

2 stops15h 25m

San Juan Luis Munoz Marin Intl

Wed 10/28

1:21 pm-9:32 pm

1 stop10h 11m

$536

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Fri 1/29

2:56 pm-10:48 am

2 stops16h 52m

San Juan Luis Munoz Marin Intl

Sat 2/6

6:00 am-5:06 pm

2 stops14h 06m

$538

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sat 10/24

8:20 am-8:05 pm

2 stops9h 45m

San Juan Luis Munoz Marin Intl

Tue 11/3

5:40 am-3:10 pm

2 stops12h 30m

$538

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Sun 9/6

5:20 am-12:15 am

2 stops15h 55m

San Juan Luis Munoz Marin Intl

Thu 9/10

10:16 am-8:21 pm

2 stops13h 05m

$538

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Fri 1/29

1:45 pm-6:11 am

2 stops12h 26m

San Juan Luis Munoz Marin Intl

Sat 2/6

2:05 am-12:40 pm

2 stops14h 35m

$538
Quickest round-trip

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Fri 10/2

5:00 am-5:38 pm

1 stop9h 38m

San Juan Luis Munoz Marin Intl

Wed 10/7

2:00 pm-8:49 pm

1 stop9h 49m

$567

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Mon 9/28

5:00 am-5:38 pm

1 stop9h 38m

San Juan Luis Munoz Marin Intl

Thu 10/1

1:00 am-12:36 pm

2 stops14h 36m

$571

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 38 resultsSorted by cheapest first
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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 $526). Flying from Idaho to Puerto Rico in November is currently the most expensive (average of $896). 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.

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 $538, United Airlines can have you in Puerto Rico from Idaho in 9h 45m. 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 $526). Flying from Idaho to Puerto Rico in November is currently the most expensive (average of $896). 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

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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.
Newark to Luis Munoz Marin Intl flights
John F Kennedy Intl to Luis Munoz Marin Intl flights
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Atlanta to Luis Munoz Marin Intl flights
LaGuardia to Punta Cana flights
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LaGuardia to Santo Domingo flights
Fort Lauderdale to Luis Munoz Marin Intl flights
Hartford to Luis Munoz Marin Intl flights
George Bush Intcntl to Luis Munoz Marin Intl flights
Newark to Nassau flights
Philadelphia to Punta Cana flights
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Dulles Intl to Punta Cana flights
John F Kennedy Intl to Nassau flights
Newark to Simpson Bay flights
Boston to Oranjestad flights
Boston to Punta Cana flights
LaGuardia to Montego Bay flights
John F Kennedy Intl to Willemstad flights
John F Kennedy Intl to Bridgetown flights
Newark to Providenciales flights
O'Hare Intl to Punta Cana flights
Atlanta to Montego Bay flights
LaGuardia to Santiago de los Caballeros flights
Orlando to Punta Cana flights
John F Kennedy Intl to Port of Spain flights
Atlanta to Punta Cana 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 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$368Average$581FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$429Average$793FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$473Average$582FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$499Average$664FlexibilityNo cancel feeOn-time71%

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