HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Puerto Rico

$360+ Cheap flights from Kalispell (FCA) 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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — SJU
Apr 18 — Apr 251
Sa 4/18
Sa 4/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Kalispell to Puerto Rico with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Kalispell to Puerto Rico

Cheapest flights from Kalispell to Puerto Rico
Explore the most affordable flight options available from Kalispell to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on März 19, 2026.

This United Airlines deal was found by Cheapflights users on 3/18. 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.
Sa 10/316:31 am
FCA
-
SJU
2 stops12h 51m
United Airlines
Di 11/32:05 am
SJU
-
FCA
2 stops14h 28m
United Airlines
Deal found 3/18$676
This United Airlines deal was found by Cheapflights users on 3/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 10/266:31 am
FCA
-
SJU
1 stop8h 54m
United Airlines
Fr 10/307:10 am
SJU
-
FCA
2 stops16h 20m
United Airlines
Deal found 3/15$712
This United Airlines deal was found by Cheapflights users on 3/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/156:00 am
FCA
-
SJU
2 stops13h 24m
United Airlines
Di 4/211:40 pm
SJU
-
FCA
1 stop9h 47m
United Airlines
Deal found 3/15$752
This United Airlines deal was found by Cheapflights users on 3/16. 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.
Sa 5/92:33 pm
FCA
-
SJU
3 stops20h 01m
United Airlines
Mi 5/131:40 pm
SJU
-
FCA
1 stop10h 17m
United Airlines
Deal found 3/16$759
This American Airlines deal was found by Cheapflights users on 3/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 8/14:45 pm
FCA
-
SJU
2 stops20h 05m
American Airlines
Mi 8/53:50 pm
SJU
-
FCA
2 stops22h 44m
American Airlines
Deal found 3/15$768
This American Airlines deal was found by Cheapflights users on 3/16. 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.
Mo 8/104:54 pm
FCA
-
SJU
1 stop19h 16m
American Airlines
So 8/164:49 pm
SJU
-
FCA
2 stops21h 45m
American Airlines
Deal found 3/16$816
This United Airlines deal was found by Cheapflights users on 3/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 4/26:00 am
FCA
-
SJU
1 stop9h 38m
United Airlines
Do 4/91:40 pm
SJU
-
FCA
1 stop9h 47m
United Airlines
Deal found 3/15$825

Find flight deals from Kalispell to Puerto Rico

Keep the following information in mind while searching for Kalispell to Puerto Rico flight deals. Data was last updated März 19, 2026.

Round-trip from

$752
(United Airlines)

One-way from

$360
(American Airlines)
From Kalispell Glacier Park to Puerto Rico
Search Deals
One-way flight from Kalispell Glacier Park to Puerto Rico
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kalispell 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 März 19, 2026.
Use the filters below to find and compare flights from Kalispell to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Mi 4/15

6:00 am-9:24 pm

2 stops13h 24m

San Juan Luis Munoz Marin Intl

Mo 4/20

1:00 am-1:31 pm

2 stops14h 31m

$752

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Sa 8/1

4:45 pm-2:50 pm

2 stops20h 05m

San Juan Luis Munoz Marin Intl

Mi 8/5

4:49 pm-12:34 pm

2 stops21h 45m

$768
Quickest round-trip

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Do 4/2

6:00 am-5:38 pm

1 stop9h 38m

San Juan Luis Munoz Marin Intl

Do 4/9

1:40 pm-9:27 pm

1 stop9h 47m

$825

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Sa 5/9

2:33 pm-12:34 pm

3 stops20h 01m

San Juan Luis Munoz Marin Intl

Di 5/12

1:00 am-9:57 pm

2 stops22h 57m

$838

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Mi 5/20

6:00 am-5:38 pm

1 stop9h 38m

San Juan Luis Munoz Marin Intl

Fr 5/29

1:00 am-4:11 pm

2 stops17h 11m

$896

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Sa 8/1

5:28 pm-5:38 pm

1 stop22h 10m

San Juan Luis Munoz Marin Intl

Di 8/4

2:05 am-1:30 pm

2 stops13h 25m

$907

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Mi 4/8

6:00 am-8:34 pm

2 stops12h 34m

San Juan Luis Munoz Marin Intl

Mi 4/15

7:00 am-9:27 pm

2 stops16h 27m

$949

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Mi 4/1

6:00 am-5:38 pm

1 stop9h 38m

San Juan Luis Munoz Marin Intl

Mo 4/6

1:40 pm-1:31 pm

1 stop25h 51m

$980
Cheapest one-way
Quickest one-way

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Mo 8/10

12:35 pm-9:42 am

2 stops19h 07m

$360

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/16

Sorted by cheapest first

Best time to book a flight from Kalispell to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Kalispell 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 Kalispell to Puerto Rico
No data available for this route at this time. Please check back soon.

Related info for your journey

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

  • What airport do you fly from for flights from Kalispell to Puerto Rico?

    Located just 8.4 mi from the city center, Kalispell Glacier Park (FCA) is the airport most travelers will use when flying to Puerto Rico from Kalispell.

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

    There are many flights that can get you from Kalispell to Puerto Rico in 13h 24m. Fly via United Airlines or American Airlines to get the fastest option. Kalispell and Puerto Rico are separated by a distance of 3382 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Kalispell 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.

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 Kalispell to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Luis Munoz Marin Intl flights
Bozeman to Punta Cana flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.