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$647+ Cheap flights from Kalispell (FCA) to Puerto Rico

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — SJU
Aug 15 — Aug 221
Sat 8/15
Sat 8/22
1 adult, Economy
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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 July 16, 2026.

This American Airlines deal was found by Cheapflights users on 7/16. 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.
Tue 9/14:50 pm
FCA
-
SJU
2 stops19h 48m
American Airlines
Tue 9/87:24 pm
SJU
-
FCA
2 stops21h 09m
American Airlines
Deal found 7/16$647
This United Airlines deal was found by Cheapflights users on 7/12. 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 10/266:15 am
FCA
-
SJU
1 stop9h 10m
United Airlines
Wed 10/281:05 am
SJU
-
FCA
2 stops14h 28m
United Airlines
Deal found 7/12$726
This United Airlines deal was found by Cheapflights users on 7/16. 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.
Mon 10/56:05 am
FCA
-
SJU
1 stop9h 33m
United Airlines
Wed 10/72:00 pm
SJU
-
FCA
1 stop9h 36m
United Airlines
Deal found 7/16$728
This American Airlines deal was found by Cheapflights users on 7/14. 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.
Thu 8/134:50 pm
FCA
-
SJU
1 stop28h 25m
American Airlines
Wed 8/1912:55 am
SJU
-
FCA
1 stop17h 15m
American Airlines
Deal found 7/14$761
This American Airlines deal was found by Cheapflights users on 7/13. 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 8/15:10 pm
FCA
-
SJU
2 stops19h 40m
American Airlines
Wed 8/55:45 am
SJU
-
FCA
1 stop10h 49m
American Airlines
Deal found 7/13$814
This United Airlines deal was found by Cheapflights users on 7/16. 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.
Tue 9/16:20 am
FCA
-
SJU
2 stops15h 30m
United Airlines
Tue 9/87:00 am
SJU
-
FCA
3 stops16h 21m
United Airlines
Deal found 7/16$881

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 July 16, 2026.

Round-trip from

$647
(American Airlines)
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 July 16, 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
Quickest round-trip

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Mon 10/26

6:15 am-5:25 pm

1 stop9h 10m

San Juan Luis Munoz Marin Intl

Thu 10/29

1:21 pm-9:42 pm

1 stop10h 21m

$726

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Mon 10/5

6:05 am-5:38 pm

1 stop9h 33m

San Juan Luis Munoz Marin Intl

Tue 10/6

1:00 am-11:28 am

2 stops12h 28m

$728

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Tue 9/1

4:50 pm-2:51 pm

2 stops20h 01m

San Juan Luis Munoz Marin Intl

Mon 9/7

12:55 am-4:10 pm

1 stop17h 15m

$731

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/12

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 9h 10m. 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

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