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Cheap flights from Idaho to Puerto Rico from $176

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 1/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Idaho to Puerto Rico

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
8:01 pm - 11:58 am
BOI
-
SJU
13h 57m2 stops
Delta Logo
6:15 am - 7:21 pm
SJU
-
BOI
15h 06m2 stops
$395Delta
Tue, Apr 14 - Fri, Apr 24
Southwest Logo
11:20 am - 12:35 am
BOI
-
SJU
10h 15m2 stops
Southwest Logo
5:30 am - 3:00 pm
SJU
-
BOI
12h 30m2 stops
$413Southwest
Tue, Feb 3 - Fri, Feb 13
American Airlines Logo
1:41 pm - 9:00 am
BOI
-
SJU
16h 19m2 stops
American Airlines Logo
1:30 am - 12:48 pm
SJU
-
BOI
13h 18m1 stop
$431American Airlines
Sat, Mar 7 - Tue, Mar 10
American Airlines Logo
5:51 am - 11:32 pm
GEG
-
SJU
13h 41m1 stop
American Airlines Logo
7:30 am - 9:13 pm
SJU
-
GEG
17h 43m1 stop
$431American Airlines
Fri, Feb 27 - Fri, Mar 6
Delta Logo
5:40 am - 11:43 pm
BOI
-
SJU
16h 03m2 stops
Delta Logo
7:00 am - 10:10 pm
SJU
-
BOI
17h 10m2 stops
$460Delta
Tue, Apr 21 - Wed, Apr 29
Southwest Logo
6:00 am - 9:05 pm
BOI
-
SJU
13h 05m2 stops
Southwest Logo
11:25 am - 11:30 pm
SJU
-
BOI
14h 05m2 stops
$467Southwest
Wed, Apr 8 - Wed, Apr 15
United Airlines Logo
6:15 am - 8:34 pm
BOI
-
SJU
12h 19m2 stops
United Airlines Logo
7:00 am - 10:22 pm
SJU
-
BOI
17h 22m2 stops
$485United Airlines
Sat, May 2 - Wed, May 6
United Airlines Logo
5:05 am - 5:38 pm
GEG
-
SJU
9h 33m1 stop
United Airlines Logo
1:40 pm - 9:09 pm
SJU
-
GEG
10h 29m1 stop
$521United Airlines
Sat, Apr 25 - Thu, Apr 30
Alaska Airlines Logo
12:25 pm - 4:21 am
GEG
-
SJU
12h 56m1 stop
Alaska Airlines Logo
6:33 am - 11:59 pm
SJU
-
GEG
20h 26m2 stops
$551Alaska Airlines
Wed, Mar 11 - Tue, Mar 17
Alaska Airlines Logo
7:00 am - 5:28 am
GEG
-
SJU
19h 28m2 stops
Alaska Airlines Logo
6:33 am - 11:59 pm
SJU
-
GEG
20h 26m2 stops
$560Alaska Airlines
Tue, Mar 10 - Tue, Mar 17

United Airlines flights from Idaho to Puerto Rico

Our best United Airlines deals on Idaho to Puerto Rico flight tickets
United Airlines
May 2
BOI6:15 amBoise Air Term. Gowen Fld
12h 19m
2 stops
SJU8:34 pmSan Juan Luis Munoz Marin Intl
May 6
SJU7:00 amSan Juan Luis Munoz Marin Intl
17h 22m
2 stops
BOI10:22 pmBoise Air Term. Gowen Fld
$485
Find similar
United Airlines
Apr 25
GEG5:05 amSpokane
9h 33m
1 stop
SJU5:38 pmSan Juan Luis Munoz Marin Intl
Apr 30
SJU1:40 pmSan Juan Luis Munoz Marin Intl
10h 29m
1 stop
GEG9:09 pmSpokane
$521
Find similar
United Airlines
May 17
BOI6:55 pmBoise Air Term. Gowen Fld
16h 50m
2 stops
SJU1:45 pmSan Juan Luis Munoz Marin Intl
May 28
SJU1:05 amSan Juan Luis Munoz Marin Intl
14h 25m
2 stops
BOI1:30 pmBoise Air Term. Gowen Fld
$540
Find similar

American Airlines flights from Idaho to Puerto Rico

Our best American Airlines deals on Idaho to Puerto Rico flight tickets
American Airlines
Mar 7
BOI1:41 pmBoise Air Term. Gowen Fld
16h 19m
2 stops
SJU9:00 amSan Juan Luis Munoz Marin Intl
Mar 10
SJU1:30 amSan Juan Luis Munoz Marin Intl
13h 18m
1 stop
BOI12:48 pmBoise Air Term. Gowen Fld
$431
Find similar
American Airlines
Feb 27
GEG3:10 pmSpokane
14h 57m
2 stops
SJU10:07 amSan Juan Luis Munoz Marin Intl
Mar 6
SJU10:57 amSan Juan Luis Munoz Marin Intl
16h 33m
2 stops
GEG11:30 pmSpokane
$470
Find similar
American Airlines
Mar 7
BOI1:41 pmBoise Air Term. Gowen Fld
16h 19m
2 stops
SJU9:00 amSan Juan Luis Munoz Marin Intl
Mar 11
SJU6:00 amSan Juan Luis Munoz Marin Intl
18h 23m
2 stops
BOI10:23 pmBoise Air Term. Gowen Fld
$491
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 28, 2025.
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

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 4/14

8:01 pm-11:58 am

2 stops13h 57m

San Juan Luis Munoz Marin Intl

Fri 4/24

6:15 am-7:21 pm

2 stops15h 06m

$395

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 2/3

11:20 am-12:35 am

2 stops10h 15m

San Juan Luis Munoz Marin Intl

Fri 2/13

5:30 am-3:00 pm

2 stops12h 30m

$413

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sat 3/7

1:41 pm-9:00 am

2 stops16h 19m

San Juan Luis Munoz Marin Intl

Tue 3/10

1:30 am-12:48 pm

1 stop13h 18m

$431

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Fri 2/27

5:51 am-11:32 pm

1 stop13h 41m

San Juan Luis Munoz Marin Intl

Fri 3/6

7:30 am-9:13 pm

1 stop17h 43m

$431

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Tue 4/21

5:40 am-11:43 pm

2 stops16h 03m

San Juan Luis Munoz Marin Intl

Wed 4/29

7:00 am-10:10 pm

2 stops17h 10m

$460

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Wed 4/8

6:00 am-9:05 pm

2 stops13h 05m

San Juan Luis Munoz Marin Intl

Wed 4/15

11:25 am-11:30 pm

2 stops14h 05m

$467

BoiseSan Juan

BOI - SJU

BOISJU

Boise Air Term. Gowen Fld

Sat 5/2

6:15 am-8:34 pm

2 stops12h 19m

San Juan Luis Munoz Marin Intl

Wed 5/6

7:00 am-10:22 pm

2 stops17h 22m

$485

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Sat 4/25

5:05 am-5:38 pm

1 stop9h 33m

San Juan Luis Munoz Marin Intl

Thu 4/30

1:40 pm-9:09 pm

1 stop10h 29m

$521

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Wed 3/11

12:25 pm-4:21 am

1 stop12h 56m

San Juan Luis Munoz Marin Intl

Tue 3/17

6:33 am-11:59 pm

2 stops20h 26m

$551

SpokaneSan Juan

GEG - SJU

GEGSJU

Spokane

Tue 3/10

7:00 am-5:28 am

2 stops19h 28m

San Juan Luis Munoz Marin Intl

Tue 3/17

6:33 am-11:59 pm

2 stops20h 26m

$560

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Puerto Rico from

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

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 $537.

What is the cheapest day to depart on your flight to Puerto Rico?

On average, the least expensive day to fly to Puerto Rico from Idaho is on a Monday. momondo users have found tickets for Monday departures for as low as $594. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Puerto Rico is Saturday, with ticket prices averaging around $844.

What is the cheapest time of day to depart on your flight to Puerto Rico?

Our most recent data shows that the best time of day to fly to Puerto Rico is in the evening. Flights from Idaho to Puerto Rico during this time can be as low as $503. In contrast, the most expensive time of day to depart to Puerto Rico is in the morning when prices are around $699.

How far in advance should I book a flight to Puerto Rico?

You are more likely to see cheaper flights to Puerto Rico from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around $621 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Puerto Rico from Idaho for as low as $504 on momondo.

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 23m

Direct flights

None
The fastest flight from Idaho to Puerto Rico takes 9h 23m
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?

  • 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
DeltaPriceFrom $338Free CancellationRating
7.9
8,019 reviews
Search Delta flights
United AirlinesPriceFrom $449Free CancellationRating
7.4
9,113 reviews
Search United Airlines flights
SouthwestPriceFrom $463Free CancellationRating
8.0
4,256 reviews
Search Southwest flights
American AirlinesPriceFrom $530Free CancellationRating
7.2
11,073 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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Find better results for your trip to Puerto Rico

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