Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Montana to Puerto Rico from $343

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to Puerto Rico departing on 7/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Montana to Puerto Rico

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:20 pm - 5:29 am
BZN
-
SJU
11h 09m
2 stops
United Airlines Logo
1:00 am - 1:20 pm
SJU
-
BZN
14h 20m
2 stops
$519United Airlines
Sat, May 30 - Tue, Jun 2
Southwest Logo
4:25 pm - 9:10 am
BZN
-
SJU
14h 45m
2 stops
Southwest Logo
5:35 am - 3:45 pm
SJU
-
BZN
12h 10m
2 stops
$548Southwest
Sun, Apr 26 - Sun, May 3
Southwest Logo
7:20 am - 11:25 pm
BZN
-
SJU
14h 05m
2 stops
Southwest Logo
8:10 am - 9:55 pm
SJU
-
BZN
15h 45m
2 stops
$554Southwest
Thu, May 7 - Wed, May 13
United Airlines Logo
4:20 pm - 5:29 am
BZN
-
SJU
11h 09m
2 stops
United Airlines Logo
1:00 am - 11:44 am
SJU
-
BZN
12h 44m
2 stops
$566United Airlines
Sat, May 30 - Tue, Jun 2
American Airlines Logo
6:00 am - 11:02 pm
BIL
-
SJU
15h 02m
1 stop
American Airlines Logo
6:45 am - 10:43 pm
SJU
-
BIL
17h 58m
1 stop
$599American Airlines
Wed, Apr 29 - Sat, May 9
United Airlines Logo
10:20 am - 9:24 pm
BZN
-
SJU
9h 04m
1 stop
United Airlines Logo
1:00 am - 10:26 am
SJU
-
BZN
11h 26m
1 stop
$614United Airlines
Sun, May 31 - Wed, Jun 3
United Airlines Logo
4:20 pm - 5:29 am
BZN
-
SJU
11h 09m
2 stops
United Airlines Logo
1:00 am - 10:26 am
SJU
-
BZN
11h 26m
1 stop
$620United Airlines
Sat, May 30 - Tue, Jun 2
American Airlines Logo
1:41 pm - 4:32 am
BZN
-
SJU
12h 51m
1 stop
American Airlines Logo
1:31 pm - 12:51 pm
SJU
-
BZN
25h 20m
2 stops
$622American Airlines
Thu, May 7 - Wed, May 13
American Airlines Logo
12:25 pm - 9:39 am
FCA
-
SJU
19h 14m
2 stops
American Airlines Logo
12:44 am - 3:00 pm
SJU
-
FCA
16h 16m
1 stop
$622American Airlines
Thu, May 21 - Tue, May 26
Delta Logo
5:59 am - 11:13 pm
BZN
-
SJU
15h 14m
2 stops
Delta Logo
6:15 am - 1:36 pm
SJU
-
BZN
9h 21m
1 stop
$655Delta
Sun, Apr 26 - Sun, May 3

United Airlines flights from Montana to Puerto Rico

Our best United Airlines deals on Montana to Puerto Rico flight tickets
United Airlines
May 30
BZN4:20 pmBozeman Gallatin Field
11h 09m
2 stops
SJU5:29 amSan Juan Luis Munoz Marin Intl
Jun 2
SJU1:00 amSan Juan Luis Munoz Marin Intl
14h 20m
2 stops
BZN1:20 pmBozeman Gallatin Field
$519
United Airlines
May 30
BZN4:20 pmBozeman Gallatin Field
11h 09m
2 stops
SJU5:29 amSan Juan Luis Munoz Marin Intl
Jun 2
SJU1:00 amSan Juan Luis Munoz Marin Intl
12h 44m
2 stops
BZN11:44 amBozeman Gallatin Field
$566
United Airlines
May 30
BZN4:20 pmBozeman Gallatin Field
11h 09m
2 stops
SJU5:29 amSan Juan Luis Munoz Marin Intl
Jun 2
SJU1:00 amSan Juan Luis Munoz Marin Intl
11h 26m
1 stop
BZN10:26 amBozeman Gallatin Field
$620

Southwest flights from Montana to Puerto Rico

Our best Southwest deals on Montana to Puerto Rico flight tickets
Southwest
Apr 26
BZN4:25 pmBozeman Gallatin Field
14h 45m
2 stops
SJU9:10 amSan Juan Luis Munoz Marin Intl
May 3
SJU5:35 amSan Juan Luis Munoz Marin Intl
12h 10m
2 stops
BZN3:45 pmBozeman Gallatin Field
$548
Southwest
May 7
BZN7:20 amBozeman Gallatin Field
14h 05m
2 stops
SJU11:25 pmSan Juan Luis Munoz Marin Intl
May 13
SJU8:10 amSan Juan Luis Munoz Marin Intl
15h 45m
2 stops
BZN9:55 pmBozeman Gallatin Field
$554
Southwest
May 9
BZN11:10 amBozeman Gallatin Field
10h 30m
2 stops
SJU11:40 pmSan Juan Luis Munoz Marin Intl
May 16
SJU11:15 amSan Juan Luis Munoz Marin Intl
12h 25m
2 stops
BZN9:40 pmBozeman Gallatin Field
$635

momondo Fare Finder

 
Customize your flight search to find flights from Montana 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 March 30, 2026.
Use the filters below to find and compare flights from Montana to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Sat 5/30

4:20 pm-5:29 am

2 stops11h 09m

San Juan Luis Munoz Marin Intl

Tue 6/2

1:00 am-1:20 pm

2 stops14h 20m

$519

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Sun 4/26

4:25 pm-9:10 am

2 stops14h 45m

San Juan Luis Munoz Marin Intl

Sun 5/3

5:35 am-3:45 pm

2 stops12h 10m

$548

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Thu 5/7

7:20 am-11:25 pm

2 stops14h 05m

San Juan Luis Munoz Marin Intl

Wed 5/13

8:10 am-9:55 pm

2 stops15h 45m

$554

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Sat 5/30

4:20 pm-5:29 am

2 stops11h 09m

San Juan Luis Munoz Marin Intl

Tue 6/2

1:00 am-11:44 am

2 stops12h 44m

$566

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Wed 4/29

6:00 am-11:02 pm

1 stop15h 02m

San Juan Luis Munoz Marin Intl

Sat 5/9

6:45 am-10:43 pm

1 stop17h 58m

$599
Quickest round-trip

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Sun 5/31

10:20 am-9:24 pm

1 stop9h 04m

San Juan Luis Munoz Marin Intl

Wed 6/3

1:00 am-10:26 am

1 stop11h 26m

$614

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Sat 5/30

4:20 pm-5:29 am

2 stops11h 09m

San Juan Luis Munoz Marin Intl

Tue 6/2

1:00 am-10:26 am

1 stop11h 26m

$620

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Thu 5/7

1:41 pm-4:32 am

1 stop12h 51m

San Juan Luis Munoz Marin Intl

Wed 5/13

1:31 pm-12:51 pm

2 stops25h 20m

$622

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Thu 5/21

12:25 pm-9:39 am

2 stops19h 14m

San Juan Luis Munoz Marin Intl

Tue 5/26

12:44 am-3:00 pm

1 stop16h 16m

$622

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Sun 4/26

5:59 am-11:13 pm

2 stops15h 14m

San Juan Luis Munoz Marin Intl

Sun 5/3

6:15 am-1:36 pm

1 stop9h 21m

$655

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

See travel insights to Puerto Rico from

How to get the cheapest flight ticket from Montana 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

What is the cheapest month to fly to Puerto Rico?

If you don’t want to visit Puerto Rico in November, then you should wait until September to fly from Montana, when ticket prices are also cheap, with an average price of $443.

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

You could potentially save up to 23% on your flight if you consider stops on a Montana to Puerto Rico flight.

Cheap Montana to Puerto Rico flight deals and tips

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

Fastest flight time

8h 38m

Direct flights

None
The fastest flight from Montana to Puerto Rico takes 8h 38m
There are no direct flights from Montana to Puerto Rico. There are no popular flight routes from Montana to Puerto Rico.
Search flight deals

  • When did momondo last update prices for flights from Montana to Puerto Rico?

    Prices for flights from Montana to Puerto Rico were last updated today.

  • How many operators does momondo search for flights from Montana to Puerto Rico?

  • How old do you have to be to fly from Montana to Puerto Rico?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Montana to Puerto Rico.

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

    The travel and health documents you'll need for your trip to Puerto Rico may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Puerto Rico. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Montana to Puerto Rico

Compare and see reviews for airlines that fly from Montana to Puerto Rico with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $363Free CancellationRating
8.0
4,329 reviews
Search Southwest flights
United AirlinesPriceFrom $386Free CancellationRating
7.4
9,514 reviews
Search United Airlines flights

Why use momondo?

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

Finding the right flight to Puerto Rico from Montana is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Puerto Rico quick and easy, saving you time and money.

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

Flights from Montana to Puerto Rico with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Montana to Puerto Rico flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Puerto Rico, momondo offers a useful price alert feature which will track prices for flights to Puerto Rico from Montana and alert you when they change.

An easier way to manage your Puerto Rico trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 4/29
Wed 5/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Puerto Rico

Popular cities in Puerto Rico

Popular flights according to clicks in the last 7 days on momondo
Flights to San Juanfrom $55
Flights to Aguadillafrom $191
Flights to Poncefrom $176
Flights to Mayagüezfrom $339
Flights to Culebrafrom $377