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$403+ 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — SJU
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
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 February 11, 2026.

This United Airlines deal was found by Cheapflights users on 2/7. 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 5/26:00 am
FCA
-
SJU
2 stops15h 50m
United Airlines
Wed 5/61:40 pm
SJU
-
FCA
1 stop10h 17m
United Airlines
Deal found 2/7$624
This American Airlines deal was found by Cheapflights users on 2/10. 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 8/412:42 pm
FCA
-
SJU
2 stops19h 00m
American Airlines
Mon 8/107:05 pm
SJU
-
FCA
2 stops17h 55m
American Airlines
Deal found 2/10$626
This United Airlines deal was found by Cheapflights users on 2/7. 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 4/186:00 am
FCA
-
SJU
2 stops15h 50m
United Airlines
Fri 4/241:00 am
SJU
-
FCA
2 stops14h 31m
United Airlines
Deal found 2/7$630

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 February 11, 2026.

Round-trip from

$624
(United Airlines)

One-way from

$403
(Kiwi.com)
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 February 11, 2026.
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

Sat 5/2

6:00 am-11:50 pm

2 stops15h 50m

San Juan Luis Munoz Marin Intl

Wed 5/6

7:20 am-9:57 pm

2 stops16h 37m

$624

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Tue 8/4

12:42 pm-9:42 am

2 stops19h 00m

San Juan Luis Munoz Marin Intl

Mon 8/10

7:05 pm-11:00 am

2 stops17h 55m

$626

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Sat 4/18

6:00 am-11:50 pm

2 stops15h 50m

San Juan Luis Munoz Marin Intl

Fri 4/24

1:00 am-1:31 pm

2 stops14h 31m

$630

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Thu 2/19

5:42 pm-11:37 am

2 stops38h 55m

$489

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Thu 2/19

6:00 am-10:22 pm

2 stops13h 22m

$521

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Tue 2/17

6:00 am-6:25 pm

1 stop9h 25m

$700

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Mon 2/16

12:00 pm-12:43 am

3 stops57h 43m

$766

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Wed 2/18

1:53 pm-3:20 pm

3 stops46h 27m

$833

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Wed 2/18

6:00 am-9:00 pm

2 stops12h 00m

$859

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Mon 2/16

6:00 am-6:25 pm

1 stop9h 25m

$859

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 11 results
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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 February 11, 2026.
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
9,276 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,276 reviews
United Airlines
7.4
Good
9,276 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 15h 50m. 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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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 February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$590Average$1,055FlexibilityNo cancel feeOn-time69%

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