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Cheap flights from Kalispell to Puerto Rico from $622

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Kalispell to Puerto Rico departing on 6/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Kalispell to Puerto Rico

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
3:50 pm - 4:25 am
FCA
-
SJU
10h 35m
1 stop
American Airlines Logo
12:59 am - 4:03 pm
SJU
-
FCA
17h 04m
1 stop
$622American Airlines
Thu, Jun 4 - Sun, Jun 7
United Airlines Logo
6:00 am - 5:38 pm
FCA
-
SJU
9h 38m
1 stop
United Airlines Logo
1:40 pm - 9:27 pm
SJU
-
FCA
9h 47m
1 stop
$656United Airlines
Mon, Apr 20 - Thu, Apr 23
American Airlines Logo
12:25 pm - 11:03 am
FCA
-
SJU
20h 38m
2 stops
American Airlines Logo
4:38 pm - 11:35 am
SJU
-
FCA
20h 57m
2 stops
$670American Airlines
Fri, May 22 - Wed, May 27
United Airlines Logo
6:00 am - 5:38 pm
FCA
-
SJU
9h 38m
1 stop
United Airlines Logo
1:40 pm - 9:27 pm
SJU
-
FCA
9h 47m
1 stop
$676United Airlines
Mon, Apr 20 - Thu, Apr 23
United Airlines Logo
6:00 am - 11:50 pm
FCA
-
SJU
15h 50m
2 stops
United Airlines Logo
1:00 am - 1:31 pm
SJU
-
FCA
14h 31m
2 stops
$717United Airlines
Mon, Apr 20 - Wed, Apr 22
American Airlines Logo
4:45 pm - 2:50 pm
FCA
-
SJU
20h 05m
2 stops
American Airlines Logo
4:49 pm - 12:34 pm
SJU
-
FCA
21h 45m
2 stops
$720American Airlines
Sat, Aug 1 - Wed, Aug 5
United Airlines Logo
2:33 pm - 2:44 pm
FCA
-
SJU
22h 11m
3 stops
United Airlines Logo
7:00 am - 9:27 pm
SJU
-
FCA
16h 27m
2 stops
$738United Airlines
Mon, Apr 20 - Thu, Apr 23
United Airlines Logo
2:33 pm - 2:44 pm
FCA
-
SJU
22h 11m
3 stops
United Airlines Logo
1:00 am - 1:31 pm
SJU
-
FCA
14h 31m
2 stops
$767United Airlines
Mon, Apr 20 - Wed, Apr 22
American Airlines Logo
4:45 pm - 2:50 pm
FCA
-
SJU
20h 05m
2 stops
American Airlines Logo
4:49 pm - 12:34 pm
SJU
-
FCA
21h 45m
2 stops
$768American Airlines
Sat, Aug 1 - Wed, Aug 5
United Airlines Logo
6:00 am - 11:50 pm
FCA
-
SJU
15h 50m
2 stops
United Airlines Logo
1:00 am - 1:31 pm
SJU
-
FCA
14h 31m
2 stops
$771United Airlines
Tue, Apr 21 - Tue, May 19

United Airlines flights from Kalispell to Puerto Rico

Our best United Airlines deals on Kalispell to Puerto Rico flight tickets
United Airlines
Apr 20
FCA6:00 amKalispell Glacier Park
9h 38m
1 stop
SJU5:38 pmSan Juan Luis Munoz Marin Intl
Apr 23
SJU1:40 pmSan Juan Luis Munoz Marin Intl
9h 47m
1 stop
FCA9:27 pmKalispell Glacier Park
$656
United Airlines
Apr 20
FCA6:00 amKalispell Glacier Park
9h 38m
1 stop
SJU5:38 pmSan Juan Luis Munoz Marin Intl
Apr 23
SJU1:40 pmSan Juan Luis Munoz Marin Intl
9h 47m
1 stop
FCA9:27 pmKalispell Glacier Park
$676
United Airlines
Apr 20
FCA6:00 amKalispell Glacier Park
15h 50m
2 stops
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Apr 22
SJU1:00 amSan Juan Luis Munoz Marin Intl
14h 31m
2 stops
FCA1:31 pmKalispell Glacier Park
$717

American Airlines flights from Kalispell to Puerto Rico

Our best American Airlines deals on Kalispell to Puerto Rico flight tickets
American Airlines
May 22
FCA3:50 pmKalispell Glacier Park
10h 35m
1 stop
SJU4:25 amSan Juan Luis Munoz Marin Intl
May 26
SJU12:44 amSan Juan Luis Munoz Marin Intl
12h 51m
1 stop
FCA11:35 amKalispell Glacier Park
$622
American Airlines
May 22
FCA12:25 pmKalispell Glacier Park
20h 38m
2 stops
SJU11:03 amSan Juan Luis Munoz Marin Intl
May 27
SJU4:38 pmSan Juan Luis Munoz Marin Intl
20h 57m
2 stops
FCA11:35 amKalispell Glacier Park
$670
American Airlines
Aug 1
FCA4:45 pmKalispell Glacier Park
20h 05m
2 stops
SJU2:50 pmSan Juan Luis Munoz Marin Intl
Aug 5
SJU4:49 pmSan Juan Luis Munoz Marin Intl
21h 45m
2 stops
FCA12:34 pmKalispell Glacier Park
$720

momondo 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, momondo users made 832,500 searches. Data last updated April 8, 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

Price

Cheapest round-trip

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Thu 6/4

3:50 pm-4:25 am

1 stop10h 35m

San Juan Luis Munoz Marin Intl

Sun 6/7

12:59 am-4:03 pm

1 stop17h 04m

$622
Quickest round-trip

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Mon 4/20

6:00 am-5:38 pm

1 stop9h 38m

San Juan Luis Munoz Marin Intl

Thu 4/23

1:40 pm-9:27 pm

1 stop9h 47m

$656

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Fri 5/22

12:25 pm-11:03 am

2 stops20h 38m

San Juan Luis Munoz Marin Intl

Wed 5/27

4:38 pm-11:35 am

2 stops20h 57m

$670

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Mon 4/20

6:00 am-5:38 pm

1 stop9h 38m

San Juan Luis Munoz Marin Intl

Thu 4/23

1:40 pm-9:27 pm

1 stop9h 47m

$676

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Mon 4/20

6:00 am-11:50 pm

2 stops15h 50m

San Juan Luis Munoz Marin Intl

Wed 4/22

1:00 am-1:31 pm

2 stops14h 31m

$717

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Sat 8/1

4:45 pm-2:50 pm

2 stops20h 05m

San Juan Luis Munoz Marin Intl

Wed 8/5

4:49 pm-12:34 pm

2 stops21h 45m

$720

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Mon 4/20

2:33 pm-2:44 pm

3 stops22h 11m

San Juan Luis Munoz Marin Intl

Thu 4/23

7:00 am-9:27 pm

2 stops16h 27m

$738

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Mon 4/20

2:33 pm-2:44 pm

3 stops22h 11m

San Juan Luis Munoz Marin Intl

Wed 4/22

1:00 am-1:31 pm

2 stops14h 31m

$767

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Sat 8/1

4:45 pm-2:50 pm

2 stops20h 05m

San Juan Luis Munoz Marin Intl

Wed 8/5

4:49 pm-12:34 pm

2 stops21h 45m

$768

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Tue 4/21

6:00 am-11:50 pm

2 stops15h 50m

San Juan Luis Munoz Marin Intl

Tue 5/19

1:00 am-1:31 pm

2 stops14h 31m

$771

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Puerto Rico from

How to get the cheapest flight ticket from Kalispell to Puerto Rico

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Kalispell to Puerto Rico flights?

You could potentially save up to 61% on your flight if you consider stops on a Kalispell to Puerto Rico flight.

Cheap Kalispell to Puerto Rico flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Kalispell to Puerto Rico

Fastest flight time

9h 38m

Direct flights

None
The fastest flight from Kalispell to Puerto Rico takes 9h 38m
There are no direct flights from Kalispell to Puerto Rico. There are no popular flight routes from Kalispell to Puerto Rico.
Search flight deals

Frequently asked questions about flying from Kalispell to Puerto Rico

  • When did momondo last update prices for flights from Kalispell Glacier Park Airport to Puerto Rico?

    Prices for flights from Kalispell Glacier Park Airport to Puerto Rico refresh daily.

  • How old do you have to be to fly from Kalispell Glacier Park Airport to Puerto Rico?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Kalispell Glacier Park Airport to Puerto Rico.

  • What documentation or ID do you need to fly to Puerto Rico?

    The travel and health documents required for your trip to Puerto Rico can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Puerto Rico. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Kalispell to Puerto Rico?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Puerto Rico from Kalispell.

Can I find flights from Kalispell to Puerto Rico with flexible booking policies on momondo?

momondo does allow users to show only those flights to Puerto Rico from Kalispell which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Kalispell to Puerto Rico?

Once you have performed a search for Kalispell to Puerto Rico flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Kalispell to Puerto Rico right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Puerto Rico from Kalispell. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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