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$679+ Cheap flights from Kalispell (FCA) to San Juan

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 6/26. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — SJU
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap 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 June 12, 2025.

Round-trip from

$679
(Mytrip)

Popular in

September

Cheapest in

January

Average price

$801
From Kalispell Glacier Park to San Juan
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($49 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2610:40 amFCA - SJU
2 stops30h 39mMultiple Airlines
Sun 6/292:36 amSJU - FCA
3 stops35h 49mMultiple Airlines
Deal found 6/11$679
This United Airlines deal was found by Cheapflights users on 6/11. 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 6/2612:42 pmFCA - SJU
1 stop9h 12mUnited Airlines
Sun 6/291:05 amSJU - FCA
2 stops12h 31mUnited Airlines
Deal found 6/11$761
This American Airlines deal was found by Cheapflights users on 6/11. 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 6/264:52 pmFCA - SJU
1 stop19h 14mAmerican Airlines
Mon 6/305:05 pmSJU - FCA
2 stops19h 49mAmerican Airlines
Deal found 6/11$780

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 June 12, 2025.
Use the filters below to find and compare flights from Kalispell to San Juan that are best for you.

Fly from

Kalispell

Fly to

San Juan

Route

Depart

Return

Price

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Thu 6/26

10:40 am-7:19 pm

2 stops30h 39m

San Juan Luis Munoz Marin Intl

Sun 6/29

2:36 am-12:25 pm

3 stops35h 49m

$679

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Thu 6/26

12:42 pm-11:54 pm

1 stop9h 12m

San Juan Luis Munoz Marin Intl

Sun 6/29

1:05 am-11:36 am

2 stops12h 31m

$761

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Thu 6/26

4:52 pm-2:06 pm

1 stop19h 14m

San Juan Luis Munoz Marin Intl

Mon 6/30

5:05 pm-10:54 am

2 stops19h 49m

$780

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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

What is the cheapest month to book a flight from Kalispell to San Juan?

Currently, September is the cheapest month in which you can book a flight from Kalispell to San Juan (average of $254). Flying from Kalispell to San Juan 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.

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated June 12, 2025.
United Airlines
7.4
Good
8,790 reviews

Food

6.6

Boarding

7.7

Entertainment

7.0

Overall

7.4

Comfort

7.3

Crew

8.1

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
8,790 reviews
United Airlines
7.4
Good
8,790 reviews

Food

6.6

Boarding

7.7

Entertainment

7.0

Overall

7.4

Comfort

7.3

Crew

8.1

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??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,790 reviews

Food

6.6

Boarding

7.7

Entertainment

7.0

Overall

7.4

Comfort

7.3

Crew

8.1

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 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 1 airline. Kalispell Glacier Park is conveniently located just 8.4 mi from Kalispell’s city center.

  • What are the cheapest airlines flying from Kalispell to San Juan round-trip?

    Cheapflights users have booked flights from Kalispell to San Juan round-trip from $761. Another airline that can offer you cheap pricing is American Airlines. United Airlines is currently priced 1% below the average price you’ll pay for this route.

  • 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.

  • What is the cheapest month to book a flight from Kalispell to San Juan?

    Currently, September is the cheapest month in which you can book a flight from Kalispell to San Juan (average of $254). Flying from Kalispell to San Juan 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 San Juan

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Luis Munoz Marin Intl flights
Missoula to Luis Munoz Marin Intl flights
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Kalispell to Luis Munoz Marin Intl flights

Top airline flying from Kalispell to San Juan

Discover the top airline that operate flights from Kalispell to San Juan. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$574Average$912FlexibilityNo cancel feeOn-time69%

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