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$672+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — SJU
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
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 December 15, 2025.

This United Airlines deal was found by Cheapflights users on 12/12. 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.
Sat 12/136:15 amFCA - SJU
1 stop9h 10mUnited Airlines
Fri 1/27:45 amSJU - FCA
2 stops17h 14mUnited Airlines
Deal found 12/12$1,253
This Delta deal was found by Cheapflights users on 12/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:20 amFCA - SJU
2 stops15h 39mDelta
Sat 1/37:00 amSJU - FCA
2 stops19h 21mDelta
Deal found 12/15$2,075
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Tue 12/305:15 pmFCA - SJU
1 stop22h 10mUnited Airlines
Sat 1/38:10 amSJU - FCA
1 stop30h 32mUnited Airlines
Deal found 12/15$4,006

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 December 15, 2025.

Round-trip from

$672
(United 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 December 15, 2025.
Use the filters below to find and compare flights from Kalispell to Puerto Rico that are best for you.

Fly from

Kalispell

Fly to

Puerto Rico

Route

Depart

Return

Price

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Mon 1/26

2:42 pm-1:17 pm

2 stops19h 35m

San Juan Luis Munoz Marin Intl

Thu 1/29

3:46 pm-12:59 pm

2 stops24h 13m

$672

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Sat 3/21

6:42 pm-2:03 pm

2 stops17h 21m

San Juan Luis Munoz Marin Intl

Sat 3/28

1:30 am-5:51 pm

2 stops18h 21m

$1,997

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Tue 12/30

5:20 am-11:59 pm

2 stops15h 39m

San Juan Luis Munoz Marin Intl

Sat 1/3

7:00 am-11:21 pm

2 stops19h 21m

$2,075

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Sat 3/21

12:34 pm-8:00 pm

1 stop29h 26m

San Juan Luis Munoz Marin Intl

Sun 3/29

7:40 am-12:11 pm

1 stop30h 31m

$2,086

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Tue 12/30

5:15 pm-6:25 pm

1 stop22h 10m

San Juan Luis Munoz Marin Intl

Sat 1/3

8:10 am-11:42 am

1 stop30h 32m

$4,006

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Sat 3/21

6:42 pm-2:03 pm

2 stops17h 21m

San Juan Luis Munoz Marin Intl

Sun 3/29

3:36 pm-12:04 pm

2 stops22h 28m

$4,773

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Sat 3/21

6:42 pm-5:19 pm

3 stops44h 37m

$761

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Sat 3/21

7:00 am-5:11 am

2 stops20h 11m

$814

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

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.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Puerto Rico. Reviews last updated December 15, 2025.
Read reviews from past customers who have flown United Airlines from Kalispell to Puerto Rico. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,092 reviews

Overall

7.4

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,092 reviews
United Airlines
7.4
Good
9,092 reviews

Overall

7.4

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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 19h 35m. Fly via United Airlines to get the fastest option. Kalispell and Puerto Rico are separated by a distance of 3382 mi.

  • 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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Alternative routes for Kalispell to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Kalispell to Puerto Rico

Discover the top airline that operate flights from Kalispell 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$590Average$1,055FlexibilityNo cancel feeOn-time69%

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