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San Juan

$360+ Cheap flights from Kalispell (FCA) to San Juan

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 17 — Apr 241
Fri 4/17
Fri 4/24
1 adult, Economy
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Cheap flight deals from Kalispell to San Juan

Cheapest flights from Kalispell to San Juan
Explore the most affordable flight options available from Kalispell to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 18, 2026.

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.
Mon 10/266:31 am
FCA
-
SJU
1 stop8h 54m
United Airlines
Fri 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.
Wed 4/156:00 am
FCA
-
SJU
2 stops13h 24m
United Airlines
Tue 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.
Sat 5/92:33 pm
FCA
-
SJU
3 stops20h 01m
United Airlines
Wed 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.
Sat 8/14:45 pm
FCA
-
SJU
2 stops20h 05m
American Airlines
Wed 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.
Mon 8/104:54 pm
FCA
-
SJU
1 stop19h 16m
American Airlines
Sun 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.
Thu 4/26:00 am
FCA
-
SJU
1 stop9h 38m
United Airlines
Thu 4/91:40 pm
SJU
-
FCA
1 stop9h 47m
United Airlines
Deal found 3/15$825
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.
Wed 4/86:00 am
FCA
-
SJU
2 stops12h 34m
United Airlines
Mon 4/131:00 am
SJU
-
FCA
2 stops14h 31m
United Airlines
Deal found 3/15$849
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.
Wed 5/206:00 am
FCA
-
SJU
1 stop9h 38m
United Airlines
Fri 5/291:00 am
SJU
-
FCA
2 stops17h 11m
United Airlines
Deal found 3/15$896

Find flight deals from Kalispell to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Kalispell (FCA) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 18, 2026.

Round-trip from

$752
(United Airlines)

One-way from

$360
(American Airlines)
From Kalispell Glacier Park to San Juan
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One-way flight from Kalispell Glacier Park to San Juan
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Kalispell to San Juan 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 March 18, 2026.
Use the filters below to find and compare flights from Kalispell to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Wed 4/15

6:00 am-9:24 pm

2 stops13h 24m

San Juan Luis Munoz Marin Intl

Mon 4/20

1:00 am-1:31 pm

2 stops14h 31m

$752

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Sat 8/1

4:45 pm-2:10 pm

2 stops19h 25m

San Juan Luis Munoz Marin Intl

Wed 8/5

7:05 pm-11:37 am

2 stops18h 32m

$768

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Sat 5/9

2:33 pm-12:34 pm

2 stops20h 01m

San Juan Luis Munoz Marin Intl

Wed 5/13

1:40 pm-9:57 pm

1 stop10h 17m

$776
Quickest round-trip

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Thu 4/2

6:00 am-5:38 pm

1 stop9h 38m

San Juan Luis Munoz Marin Intl

Thu 4/9

1:40 pm-9:27 pm

1 stop9h 47m

$825

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Wed 5/20

6:00 am-5:38 pm

1 stop9h 38m

San Juan Luis Munoz Marin Intl

Fri 5/29

1:00 am-4:11 pm

2 stops17h 11m

$896

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Sat 8/1

5:28 pm-5:38 pm

1 stop22h 10m

San Juan Luis Munoz Marin Intl

Tue 8/4

2:05 am-1:30 pm

2 stops13h 25m

$907

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Wed 4/1

6:00 am-5:38 pm

1 stop9h 38m

San Juan Luis Munoz Marin Intl

Mon 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

Mon 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 San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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 San Juan
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 San Juan. 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 San Juan?

    Most people fly from Kalispell Glacier Park (FCA) if they book a flight from Kalispell to San Juan. On average, Glacier Park has 0 outbound flights to San Juan per day from 0 airlines. Kalispell Glacier Park is conveniently located just 8.4 mi from Kalispell’s city center.

  • How long is the flight from Kalispell to San Juan?

    A quick flight from Kalispell to San Juan can take about 13h 24m. United Airlines provides one of the quickest options available for as low as $752. Kalispell and San Juan are separated by a distance of 3382 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Kalispell to San Juan that include hotel bookings?

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

  • How can I find direct flights from Kalispell to San Juan?

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

  • Can I find deals for business class flights from Kalispell to San Juan?

    Yes. Cheapflights offers flight deals from Kalispell to San Juan 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 San Juan

See prices for flight routes from nearby airports that may be better suited for you.
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