$512 Find Cheap Flights from Kalispell to Puerto Rico

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Kalispell to Puerto Rico departing on 9/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Flight Deals

Book Cheap Kalispell to Puerto Rico Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Kalispell to Puerto Rico that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Kalispell to Puerto Rico

Fri, Sep 26 - Tue, Sep 30
American Airlines Logo
3:49 pm - 12:50 pmFCA-SJU
19h 01m2 stops
American Airlines Logo
3:55 pm - 2:23 pmSJU-FCA
24h 28m2 stops
$512American Airlines
Find Deal
Fri, Sep 26 - Tue, Sep 30
United Airlines Logo
6:30 am - 5:30 pmFCA-SJU
9h 00m1 stop
United Airlines Logo
2:00 pm - 9:31 pmSJU-FCA
9h 31m1 stop
$583United Airlines
Find Deal
Wed, Jan 28 - Tue, Feb 3
United Airlines Logo
6:31 am - 10:22 pmFCA-SJU
12h 51m2 stops
United Airlines Logo
7:45 am - 9:30 pmSJU-FCA
16h 45m2 stops
$585United Airlines
Find Deal
Fri, Sep 26 - Mon, Sep 29
United Airlines Logo
6:30 am - 5:30 pmFCA-SJU
9h 00m1 stop
United Airlines Logo
1:05 am - 1:25 pmSJU-FCA
14h 20m2 stops
$595United Airlines
Find Deal
Wed, Jan 28 - Mon, Feb 2
United Airlines Logo
6:31 am - 10:22 pmFCA-SJU
12h 51m2 stops
United Airlines Logo
2:05 am - 1:28 pmSJU-FCA
14h 23m2 stops
$670United Airlines
Find Deal
Tue, Aug 19 - Sat, Aug 23
American Airlines Logo
3:49 pm - 12:50 pmFCA-SJU
19h 01m2 stops
American Airlines Logo
7:05 pm - 2:39 pmSJU-FCA
21h 34m2 stops
$740American Airlines
Find Deal
Fri, Sep 26 - Mon, Sep 29
United Airlines Logo
4:08 pm - 1:45 pmFCA-SJU
19h 37m2 stops
United Airlines Logo
1:05 am - 9:31 pmSJU-FCA
22h 26m2 stops
$742United Airlines
Find Deal
Wed, Jan 28 - Tue, Feb 3
United Airlines Logo
5:00 pm - 6:25 pmFCA-SJU
22h 25m1 stop
United Airlines Logo
2:25 pm - 9:30 pmSJU-FCA
10h 05m1 stop
$747United Airlines
Find Deal
Wed, Jan 28 - Tue, Feb 3
Alaska Airlines Logo
4:09 pm - 9:55 pmFCA-SJU
26h 46m3 stops
Alaska Airlines Logo
7:20 am - 11:59 pmSJU-FCA
19h 39m2 stops
$875Alaska Airlines
Find Deal
Tue, Aug 19 - Sat, Aug 23
Alaska Airlines Logo
4:15 pm - 2:25 pmFCA-SJU
20h 10m3 stops
Alaska Airlines Logo
3:30 pm - 1:30 pmSJU-FCA
24h 00m3 stops
$5,142Alaska Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Kalispell to Puerto Rico flights

Get data-powered insights and trends into flights from Kalispell to Puerto Rico to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Kalispell to Puerto Rico?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Kalispell to Puerto Rico were found on American Airlines ($512) and United Airlines ($583).

FAQs - booking Puerto Rico flights

  • How does KAYAK find such low prices on flights from Kalispell to Puerto Rico?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Kalispell to Puerto Rico.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Kalispell to Puerto Rico?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Kalispell to Puerto Rico is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Kalispell to Puerto Rico?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Kalispell to Puerto Rico with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Kalispell to Puerto Rico?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Kalispell to Puerto Rico up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Puerto Rico?

    The cheapest time of day to fly to Puerto Rico is generally in the evening, when round-trip flights cost $611 on average. Morning departures are around 32% more expensive than evening flights, on average. The most expensive time of day to fly to Puerto Rico is generally in the morning, which is peak travel time and where the average cost of a ticket is $809.

Reviews of the top airline flying from Kalispell to Puerto Rico

 
Need help choosing which airline to fly with from Kalispell to Puerto Rico? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8916 reviews
7.3Comfort
8.1Crew
7.7Boarding
7.0Entertainment
6.6Food
Airline reviews

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

10.0 ExcellentDr. Joseph, Aug 2025ORD - DEN
Read more United Airlines reviews

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

This is for UA2274 from Houston to Sacramento. The flight was delayed arriving due to mechanical issues so we left about 3 hours later than scheduled. When boarding the plane the temperature inside was excessive - likely close to 100. Pilot apologized and said it was going to improve at altitude, which it did. But before that I honestly thought there might have been more delays removing passengers made ill from the heat. We were delayed leaving due to another mechanical issue. There was not water on the plane due to a panel that was not secured. They did that quickly, but the combination of mechanical issues was rather disturbing and did not reflect well on United.

1. when we went to check in, our 2 first class seats had been CANCELED and the flight was sold out. This was done without our prior knowledge. It was all we could do to restore one first class seat for my wife and I flew economy. 2, Our flight home was scheduled to leave at 10:30 pm. Due to tsunami warnings, the roads were closed and our flight status was uncertain as to whether it would leave as scheduled. It was announced that it would now leave at 11:20 pm and the roads were now open since the tsunami had come and gone. We made a mad dash to the airport and checked in. Delays were announced at 12:30 pm, 1:30 am, 2:30 am and at 3:30 am it was canceled. Since this was a flight due to natural (tsunami) causes, there was no compensation. We were told to return at 1:00 pm the next day and our baggage would be kept on the plane since the same plane was going to leave at 1:00 pm. We had to return to our hotel for the rest of the night. The same plane did not leave at 1:00 pm and our baggage was gone! All in all, it was a miserable performance by UA. Information was hard to obtain and no one knew what was going on and what was going to happen. Hundreds of passengers slept on the floor, chairs, etc. No food and no water was made available to the passengers. It was a situation where UA could care less what was going on. As a one million mile flyer, I had not experienced anything like this before and it was hugely disappointing!

Staff members were not helpful they ignored all calls for an attendant.

Flight was delayed and missed my connection Lufthansa didn’t respond.

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Everything you need to know for your flight from Kalispell to Puerto Rico

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