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$621+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — SJU
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap 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 September 15, 2025.

Round-trip from

$621
(United Airlines)
From Kalispell Glacier Park to Puerto Rico
Search Deals

Find 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 September 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:15 amFCA - SJU
1 stop9h 10mUnited Airlines
Sat 12/138:30 amSJU - FCA
2 stops16h 16mUnited Airlines
Deal found 9/14$621
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 12/116:15 amFCA - SJU
2 stops13h 07mUnited Airlines
Mon 12/158:30 amSJU - FCA
2 stops16h 16mUnited Airlines
Deal found 9/15$665
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:15 amFCA - SJU
2 stops13h 07mUnited Airlines
Mon 12/152:25 pmSJU - FCA
1 stop10h 21mUnited Airlines
Deal found 9/14$725
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/264:08 pmFCA - SJU
2 stops17h 52mUnited Airlines
Thu 10/21:05 amSJU - FCA
2 stops14h 20mUnited Airlines
Deal found 9/14$735
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 9/263:49 pmFCA - SJU
2 stops21h 04mAmerican Airlines
Fri 10/37:05 pmSJU - FCA
2 stops21h 18mAmerican Airlines
Deal found 9/14$745
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/126:15 amFCA - SJU
2 stops13h 07mUnited Airlines
Mon 12/152:25 pmSJU - FCA
1 stop10h 21mUnited Airlines
Deal found 9/14$815

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 September 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

Thu 12/11

6:15 am-10:22 pm

2 stops13h 07m

San Juan Luis Munoz Marin Intl

Mon 12/15

8:30 am-9:46 pm

2 stops16h 16m

$665

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Wed 12/10

6:15 am-10:22 pm

2 stops13h 07m

San Juan Luis Munoz Marin Intl

Mon 12/15

2:25 pm-9:46 pm

1 stop10h 21m

$725

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Fri 9/26

6:30 am-11:57 pm

2 stops15h 27m

San Juan Luis Munoz Marin Intl

Fri 10/3

2:00 pm-9:31 pm

1 stop9h 31m

$735

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Wed 12/10

6:15 am-10:22 pm

2 stops13h 07m

San Juan Luis Munoz Marin Intl

Fri 12/12

2:05 am-1:35 pm

2 stops14h 30m

$753

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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 September 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
8,929 reviews

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,929 reviews
United Airlines
7.4
Good
8,929 reviews

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 07m. 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.

  • What is the cheapest month to book a flight from Kalispell to Puerto Rico?

    Currently, September is the cheapest month in which you can book a flight from Kalispell to Puerto Rico (average of $254). Flying from Kalispell to Puerto Rico in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$574Average$857FlexibilityNo cancel feeOn-time69%

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