What is the cheapest airline that flies from Idaho to Puerto Rico?

American Airlines, Frontier, and Southwest are the most popular carriers operating from Idaho to Puerto Rico

What airlines fly to Puerto Rico?

United Airlines, Southwest and Delta are the top three most popular airlines that fly to Puerto Rico from Idaho according to our data. United Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Puerto Rico. Keep in mind that there are 4 different airlines that fly to Puerto Rico on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Idaho to Puerto Rico?

Prices for flights from Idaho to Puerto Rico refresh daily.

How many operators does momondo search for flights from Idaho to Puerto Rico?

As of February 2026, there are 4 operators available to choose from for flights from Idaho to Puerto Rico.

How old do you have to be to fly from Idaho to Puerto Rico?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Puerto Rico.

What documentation or ID do you need to fly to Puerto Rico?

The necessary travel and health documents for your Puerto Rico trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$231 Cheap Flights from Idaho to Puerto Rico in 2026

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Find the cheapest flights from Idaho to Puerto Rico

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:35 pm - 12:12 pm

BOI

SJU

13h 37m

2 stops

6:15 am - 9:01 pm

SJU

BOI

16h 46m

2 stops

$416Delta

Sun, Apr 19 - Thu, Apr 30

5:10 pm - 12:12 pm

GEG

SJU

16h 02m

2 stops

1:25 pm - 12:20 am

SJU

GEG

13h 55m

2 stops

$424Delta

Sat, Apr 25 - Thu, Apr 30

5:50 am - 11:56 pm

BOI

SJU

15h 06m

2 stops

7:00 am - 10:11 pm

SJU

BOI

17h 11m

2 stops

$426Delta

Tue, Mar 3 - Tue, Mar 10

7:10 am - 8:34 pm

GEG

SJU

10h 24m

1 stop

1:00 am - 12:41 pm

SJU

GEG

14h 41m

2 stops

$434United Airlines

Tue, Apr 21 - Mon, Apr 27

6:00 am - 11:15 pm

GEG

SJU

14h 15m

2 stops

1:00 pm - 9:37 pm

SJU

GEG

11h 37m

1 stop

$438Delta

Wed, Mar 11 - Tue, Mar 17

4:20 pm - 8:55 am

BOI

SJU

14h 35m

2 stops

5:05 am - 7:00 pm

SJU

BOI

15h 55m

2 stops

$452Southwest

Fri, May 1 - Wed, May 6

6:00 am - 11:02 pm

GEG

SJU

14h 02m

1 stop

5:45 am - 4:55 pm

SJU

GEG

14h 10m

2 stops

$452American Airlines

Tue, Apr 21 - Tue, Apr 28

8:20 am - 8:34 pm

BOI

SJU

10h 14m

1 stop

7:20 am - 9:22 pm

SJU

BOI

16h 02m

2 stops

$455United Airlines

Tue, Apr 21 - Tue, Apr 28

6:33 pm - 9:00 am

BOI

SJU

12h 27m

2 stops

7:11 am - 10:38 pm

SJU

BOI

17h 27m

2 stops

$462American Airlines

Tue, Mar 31 - Tue, Apr 7

11:00 am - 11:40 pm

BOI

SJU

10h 40m

2 stops

5:05 am - 7:00 pm

SJU

BOI

15h 55m

2 stops

$469Southwest

Sat, May 2 - Wed, May 6

Delta flights from Idaho to Puerto Rico

Our best Delta deals on Idaho to Puerto Rico flight tickets

Delta

Apr 19

BOI8:35 pmBoise Air Term. Gowen Fld

13h 37m

2 stops

SJU12:12 pmSan Juan Luis Munoz Marin Intl

Apr 30

SJU6:15 amSan Juan Luis Munoz Marin Intl

16h 46m

2 stops

BOI9:01 pmBoise Air Term. Gowen Fld

$416

Delta

Apr 25

GEG5:10 pmSpokane

16h 02m

2 stops

SJU12:12 pmSan Juan Luis Munoz Marin Intl

Apr 30

SJU1:25 pmSan Juan Luis Munoz Marin Intl

13h 55m

2 stops

GEG12:20 amSpokane

$424

Delta

Mar 3

BOI5:50 amBoise Air Term. Gowen Fld

15h 06m

2 stops

SJU11:56 pmSan Juan Luis Munoz Marin Intl

Mar 10

SJU7:00 amSan Juan Luis Munoz Marin Intl

17h 11m

2 stops

BOI10:11 pmBoise Air Term. Gowen Fld

$426

United Airlines flights from Idaho to Puerto Rico

Our best United Airlines deals on Idaho to Puerto Rico flight tickets

United Airlines

Apr 21

GEG5:05 amSpokane

12h 29m

2 stops

SJU8:34 pmSan Juan Luis Munoz Marin Intl

Apr 27

SJU1:00 amSan Juan Luis Munoz Marin Intl

14h 41m

2 stops

GEG12:41 pmSpokane

$434

United Airlines

Apr 21

BOI8:20 amBoise Air Term. Gowen Fld

10h 14m

1 stop

SJU8:34 pmSan Juan Luis Munoz Marin Intl

Apr 28

SJU7:20 amSan Juan Luis Munoz Marin Intl

16h 02m

2 stops

BOI9:22 pmBoise Air Term. Gowen Fld

$455

United Airlines

May 10

GEG7:10 amSpokane

10h 24m

1 stop

SJU8:34 pmSan Juan Luis Munoz Marin Intl

May 23

SJU7:20 amSan Juan Luis Munoz Marin Intl

16h 31m

2 stops

GEG8:51 pmSpokane

$457

Fly from

Fly to

Route

Depart

Return

Price

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sun 4/19

8:35 pm-12:12 pm

2 stops13h 37m

San Juan Luis Munoz Marin Intl

Thu 4/30

6:15 am-9:01 pm

2 stops16h 46m

$416

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Sat 4/25

5:10 pm-12:12 pm

2 stops16h 02m

San Juan Luis Munoz Marin Intl

Thu 4/30

1:25 pm-12:20 am

2 stops13h 55m

$424

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 3/3

5:50 am-11:56 pm

2 stops15h 06m

San Juan Luis Munoz Marin Intl

Tue 3/10

7:00 am-10:11 pm

2 stops17h 11m

$426

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Tue 4/21

7:10 am-8:34 pm

1 stop10h 24m

San Juan Luis Munoz Marin Intl

Mon 4/27

1:00 am-12:41 pm

2 stops14h 41m

$434

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Wed 3/11

6:00 am-11:15 pm

2 stops14h 15m

San Juan Luis Munoz Marin Intl

Tue 3/17

1:00 pm-9:37 pm

1 stop11h 37m

$438

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Fri 5/1

4:20 pm-8:55 am

2 stops14h 35m

San Juan Luis Munoz Marin Intl

Wed 5/6

5:05 am-7:00 pm

2 stops15h 55m

$452

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Tue 4/21

6:00 am-11:02 pm

1 stop14h 02m

San Juan Luis Munoz Marin Intl

Tue 4/28

5:45 am-4:55 pm

2 stops14h 10m

$452

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 4/21

8:20 am-8:34 pm

1 stop10h 14m

San Juan Luis Munoz Marin Intl

Tue 4/28

7:20 am-9:22 pm

2 stops16h 02m

$455

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 3/31

6:33 pm-9:00 am

2 stops12h 27m

San Juan Luis Munoz Marin Intl

Tue 4/7

7:11 am-10:38 pm

2 stops17h 27m

$462

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sat 5/2

11:00 am-11:40 pm

2 stops10h 40m

San Juan Luis Munoz Marin Intl

Wed 5/6

5:05 am-7:00 pm

2 stops15h 55m

$469

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Idaho to Puerto Rico

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Puerto Rico?

If you don’t want to visit Puerto Rico in September, then you should wait until January to fly from Idaho, when ticket prices are also cheap, with an average price of $554.

Can stopping save me money on Idaho to Puerto Rico flights?

You could potentially save up to 34% on your flight if you consider stops on a Idaho to Puerto Rico flight.

Cheap Idaho to Puerto Rico flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Puerto Rico

Fastest flight time	9h 05m
Direct flights	None

The fastest flight from Idaho to Puerto Rico takes 9h 05m

There are no direct flights from Idaho to Puerto Rico. There are no popular flight routes from Idaho to Puerto Rico.

Search flight deals

When did momondo last update prices for flights from Idaho to Puerto Rico?
Prices for flights from Idaho to Puerto Rico refresh daily.
How many operators does momondo search for flights from Idaho to Puerto Rico?
As of February 2026, there are 4 operators available to choose from for flights from Idaho to Puerto Rico.
How old do you have to be to fly from Idaho to Puerto Rico?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Puerto Rico.
What documentation or ID do you need to fly to Puerto Rico?
The necessary travel and health documents for your Puerto Rico trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Idaho to Puerto Rico

Compare and see reviews for airlines that fly from Idaho to Puerto Rico with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $234	Free Cancellation	Rating 7.9 8,177 reviews	Search Delta flights
United Airlines	PriceFrom $442	Free Cancellation	Rating 7.4 9,276 reviews	Search United Airlines flights
Southwest	PriceFrom $473	Free Cancellation	Rating 8.0 4,280 reviews	Search Southwest flights
American Airlines	PriceFrom $499	Free Cancellation	Rating 7.2 11,267 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Puerto Rico?

Finding the right flight to Puerto Rico from Idaho is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Puerto Rico quick and easy, saving you time and money.

Can I find flights from Idaho to Puerto Rico with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Idaho to Puerto Rico flights to just show those with flexible booking policies.

How can momondo help me find flights from Idaho to Puerto Rico?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Idaho to Puerto Rico.

I’m not ready to book a flight from Idaho to Puerto Rico right now. Can momondo alert me if prices change?

Price alerts on flights to Puerto Rico from Idaho are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Puerto Rico trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

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Popular cities

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Airlines

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Complete your trip

Feeling lucky

Popular cities in Puerto Rico

Flights to San Juanfrom $92

Flights to Aguadillafrom $137

Flights to Mayagüezfrom $304

Cheap flights from Idaho to Puerto Rico from $231

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Puerto Rico departing on 4/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

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Price Alerts

Find the cheapest flights from Idaho to Puerto Rico

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Delta flights from Idaho to Puerto Rico

Our best Delta deals on Idaho to Puerto Rico flight tickets

United Airlines flights from Idaho to Puerto Rico

Our best United Airlines deals on Idaho to Puerto Rico flight tickets

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

See travel insights to Puerto Rico from

How to get the cheapest flight ticket from Idaho to Puerto Rico

What is the cheapest month to fly to Puerto Rico?

Can stopping save me money on Idaho to Puerto Rico flights?

What is the cheapest airline that flies from Idaho to Puerto Rico?

What airlines fly to Puerto Rico?

Cheap Idaho to Puerto Rico flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Puerto Rico

Fastest flight time

Direct flights

Best airlines flying from Idaho to Puerto Rico

Compare and see reviews for airlines that fly from Idaho to Puerto Rico with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Puerto Rico?

Can I find flights from Idaho to Puerto Rico with flexible booking policies on momondo?

How can momondo help me find flights from Idaho to Puerto Rico?

I’m not ready to book a flight from Idaho to Puerto Rico right now. Can momondo alert me if prices change?

An easier way to manage your Puerto Rico trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Puerto Rico

Popular cities in Puerto Rico

Popular flights according to clicks in the last 7 days on momondo

Idaho flight routes

According to popular flight searches on momondo this year

Puerto Rico flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Puerto Rico

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Puerto Rico

List of cabin classes available on flights landing in Puerto Rico. Availability may vary depending on flight origin and airline.

Complete your trip to Puerto Rico

Explore popular destinations other users love

According to popular flight searches on momondo this year