$724+ 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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — SJU
Oct 13 — Oct 201
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Kalispell to Puerto Rico
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Best
Last-minute
Cheapest flights from Kalispell to Puerto RicoExplore 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 13, 2026.
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 13, 2026.
This United Airlines deal was found by Cheapflights users on 9/9. 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 10/266:14 am -
1 stop9h 11m
Thu 10/294:50 pm -
3 stops22h 44m
Deal found 9/9![United Airlines logo]()
$724
This American Airlines deal was found by Cheapflights users on 9/8. 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 9/123:26 pm -
2 stops20h 31m
Mon 9/142:58 pm -
2 stops23h 46m
Deal found 9/8![American Airlines logo]()
$919
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/126:20 am -
1 stop9h 18m
Sun 9/131:00 am -
2 stops12h 29m
Deal found 9/8![United Airlines logo]()
$1,095
Best flights from Kalispell to Puerto RicoDiscover carefully curated flight deals from Kalispell to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
Discover carefully curated flight deals from Kalispell to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/266:14 am -
1 stop9h 11m
Thu 10/294:50 pm -
3 stops22h 44m
Deal found 9/8![United Airlines logo]()
$724
Last-minute flights from Kalispell to Puerto RicoDiscover last-minute flight deals from Kalispell to Puerto Rico. Data last updated September 13, 2026 and is based on user searches.
Discover last-minute flight deals from Kalispell to Puerto Rico. Data last updated September 13, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/8. 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 9/123:26 pm -
2 stops20h 31m
Mon 9/142:58 pm -
2 stops23h 46m
Deal found 9/8![American Airlines logo]()
$919
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/126:20 am -
1 stop9h 18m
Sun 9/131:00 am -
2 stops12h 29m
Deal found 9/8![United Airlines logo]()
$1,095
This United Airlines deal was found by Cheapflights users on 9/9. 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 10/266:14 am -
2 stops11h 46m
Thu 10/294:50 pm -
3 stops22h 44m
Deal found 9/9![United Airlines logo]()
$724
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 September 13, 2026.
Round-trip from | $724 (United Airlines) |
|---|
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 7,457,451 searches. Data last updated September 13, 2026.
Use the filters below to find and compare flights from Kalispell to Puerto Rico that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
KalispellSan Juan
FCA Kalispell Glacier Park - SJU San Juan Luis Munoz Marin Intl
FCASJU
Kalispell Glacier Park
Mon 10/26
6:14 am-5:25 pm
1 stop9h 11m
San Juan Luis Munoz Marin Intl
Thu 10/29
4:50 pm-1:34 pm
3 stops22h 44m
$724
Sorted by cheapest first
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.
FCA-SJU
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
FCA-PR0
FCA-SJU
No data available for this route at this time. Please check back soon.
Related info for your journey
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