What is the cheapest airline that flies from Montana to Puerto Rico?

United Airlines, Southwest, and American Airlines are the most popular carriers operating from Montana to Puerto Rico

How long is the flight from Montana to Puerto Rico?

Flight times from Montana to Puerto Rico vary, but if you’re flying out of Billings and flying into San Juan Luis Munoz Marin Intl Airport (one of the most popular routes), then the duration is 8h 31m on average. Another popular route from Montana to Puerto Rico is flying from Kalispell to San Juan Luis Munoz Marin Intl Airport, which will take roughly 8h 54m. Keep in mind that layovers or delays could extend your travel time.

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?

There are 2 operators available for flights from Montana to Puerto Rico as of October 2026.

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.

$338 Cheap Flights from Montana to Puerto Rico in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Montana to Puerto Rico

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:05 am - 1:25 amBZN Bozeman Gallatin Field-SJU San Juan Luis Munoz Marin Intl

12h 20m2 stops Denver Intl Orlando

6:35 am - 7:45 pmSJU San Juan Luis Munoz Marin Intl-BZN Bozeman Gallatin Field

15h 10m2 stops Orlando Denver Intl

$464Southwest

Fri, Oct 23 - Tue, Oct 27

6:31 pm - 11:40 amBZN Bozeman Gallatin Field-SJU San Juan Luis Munoz Marin Intl

15h 09m2 stops Salt Lake City Atlanta Hartsfield-Jackson

3:20 pm - 12:19 amSJU San Juan Luis Munoz Marin Intl-BZN Bozeman Gallatin Field

11h 59m2 stops Detroit Metropolitan Wayne County Salt Lake City

$464Delta

Fri, Oct 30 - Tue, Nov 10

6:00 am - 12:19 amBZN Bozeman Gallatin Field-SJU San Juan Luis Munoz Marin Intl

15h 19m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

6:15 am - 12:10 amSJU San Juan Luis Munoz Marin Intl-BZN Bozeman Gallatin Field

19h 55m2 stops Atlanta Hartsfield-Jackson Salt Lake City

$464Delta

Tue, Mar 9 - Wed, Mar 17

6:00 am - 12:19 amBZN Bozeman Gallatin Field-SJU San Juan Luis Munoz Marin Intl

15h 19m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

6:15 am - 1:16 pmSJU San Juan Luis Munoz Marin Intl-BZN Bozeman Gallatin Field

9h 01m1 stop Atlanta Hartsfield-Jackson

$511Delta

Tue, Mar 9 - Wed, Mar 17

6:30 am - 5:38 pmBZN Bozeman Gallatin Field-SJU San Juan Luis Munoz Marin Intl

9h 08m1 stop Denver Intl

1:21 pm - 9:30 pmSJU San Juan Luis Munoz Marin Intl-BZN Bozeman Gallatin Field

10h 09m1 stop Denver Intl

$525United Airlines

Fri, Oct 23 - Tue, Oct 27

6:30 am - 5:38 pmBZN Bozeman Gallatin Field-SJU San Juan Luis Munoz Marin Intl

9h 08m1 stop Denver Intl

6:40 am - 9:30 pmSJU San Juan Luis Munoz Marin Intl-BZN Bozeman Gallatin Field

16h 50m2 stops Houston George Bush Intcntl Denver Intl

$525United Airlines

Fri, Oct 23 - Tue, Oct 27

8:05 am - 10:25 pmBZN Bozeman Gallatin Field-SJU San Juan Luis Munoz Marin Intl

11h 20m2 stops Denver Intl Tampa

5:35 am - 3:25 pmSJU San Juan Luis Munoz Marin Intl-BZN Bozeman Gallatin Field

12h 50m2 stops Orlando Denver Intl

$535Southwest

Wed, Nov 4 - Mon, Nov 9

6:30 am - 6:25 pmBZN Bozeman Gallatin Field-SJU San Juan Luis Munoz Marin Intl

8h 55m1 stop Denver Intl

2:21 pm - 9:30 pmSJU San Juan Luis Munoz Marin Intl-BZN Bozeman Gallatin Field

10h 09m1 stop Denver Intl

$556United Airlines

Wed, Nov 4 - Mon, Nov 9

7:55 am - 1:10 amBZN Bozeman Gallatin Field-SJU San Juan Luis Munoz Marin Intl

14h 15m2 stops Denver Intl Baltimore/Washington

6:05 am - 3:25 pmSJU San Juan Luis Munoz Marin Intl-BZN Bozeman Gallatin Field

12h 20m2 stops Tampa Denver Intl

$622Southwest

Thu, Nov 5 - Sun, Nov 8

8:15 am - 8:10 pmBZN Bozeman Gallatin Field-SJU San Juan Luis Munoz Marin Intl

9h 55m2 stops Denver Intl Tampa

12:40 pm - 10:10 pmSJU San Juan Luis Munoz Marin Intl-BZN Bozeman Gallatin Field

11h 30m2 stops Orlando Denver Intl

$676Southwest

Sat, Oct 17 - Wed, Oct 21

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Southwest flights from Montana to Puerto Rico

Our best Southwest deals on Montana to Puerto Rico flight tickets

Southwest

Nov 4

BZN8:05 amBozeman Gallatin Field

11h 20m

2 stops

SJU10:25 pmSan Juan Luis Munoz Marin Intl

Nov 9

SJU5:35 amSan Juan Luis Munoz Marin Intl

12h 50m

2 stops

BZN3:25 pmBozeman Gallatin Field

$535

Southwest

Nov 5

BZN7:55 amBozeman Gallatin Field

14h 15m

2 stops

SJU1:10 amSan Juan Luis Munoz Marin Intl

Nov 8

SJU6:05 amSan Juan Luis Munoz Marin Intl

12h 20m

2 stops

BZN3:25 pmBozeman Gallatin Field

$622

Southwest

Jan 6

BZN8:40 amBozeman Gallatin Field

10h 20m

2 stops

SJU10:00 pmSan Juan Luis Munoz Marin Intl

Jan 16

SJU12:15 pmSan Juan Luis Munoz Marin Intl

11h 15m

2 stops

BZN8:30 pmBozeman Gallatin Field

$647

American Airlines flights from Montana to Puerto Rico

Our best American Airlines deals on Montana to Puerto Rico flight tickets

American Airlines

Jan 27

MSO7:42 amMissoula Johnson-Bell Field

13h 12m

1 stop

SJU11:54 pmSan Juan Luis Munoz Marin Intl

Feb 8

SJU6:53 pmSan Juan Luis Munoz Marin Intl

28h 19m

2 stops

MSO8:12 pmMissoula Johnson-Bell Field

$603

American Airlines

Mar 3

BIL1:23 pmBillings Logan Intl

18h 15m

2 stops

SJU10:38 amSan Juan Luis Munoz Marin Intl

Mar 9

SJU7:01 pmSan Juan Luis Munoz Marin Intl

20h 52m

2 stops

BIL12:53 pmBillings Logan Intl

$613

American Airlines

Feb 22

BZN1:49 pmBozeman Gallatin Field

17h 49m

2 stops

SJU10:38 amSan Juan Luis Munoz Marin Intl

Feb 28

SJU6:30 amSan Juan Luis Munoz Marin Intl

16h 51m

1 stop

BZN8:21 pmBozeman Gallatin Field

$633

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BozemanSan Juan

BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl

BZNSJU

Bozeman Gallatin Field

Fri 10/23

11:05 am-1:25 am

2 stops12h 20m

San Juan Luis Munoz Marin Intl

Tue 10/27

6:35 am-7:45 pm

2 stops15h 10m

$464

BozemanSan Juan

BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl

BZNSJU

Bozeman Gallatin Field

Fri 10/30

6:31 pm-11:40 am

2 stops15h 09m

San Juan Luis Munoz Marin Intl

Tue 11/10

3:20 pm-12:19 am

2 stops11h 59m

$464

BozemanSan Juan

BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl

BZNSJU

Bozeman Gallatin Field

Tue 3/9

6:00 am-12:19 am

2 stops15h 19m

San Juan Luis Munoz Marin Intl

Wed 3/17

6:15 am-12:10 am

2 stops19h 55m

$464

BozemanSan Juan

BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl

BZNSJU

Bozeman Gallatin Field

Tue 3/9

6:00 am-12:19 am

2 stops15h 19m

San Juan Luis Munoz Marin Intl

Wed 3/17

6:15 am-1:16 pm

1 stop9h 01m

$511

BozemanSan Juan

BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl

BZNSJU

Bozeman Gallatin Field

Fri 10/23

6:30 am-5:38 pm

1 stop9h 08m

San Juan Luis Munoz Marin Intl

Tue 10/27

1:21 pm-9:30 pm

1 stop10h 09m

$525

BozemanSan Juan

BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl

BZNSJU

Bozeman Gallatin Field

Fri 10/23

6:30 am-5:38 pm

1 stop9h 08m

San Juan Luis Munoz Marin Intl

Tue 10/27

6:40 am-9:30 pm

2 stops16h 50m

$525

BozemanSan Juan

BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl

BZNSJU

Bozeman Gallatin Field

Wed 11/4

8:05 am-10:25 pm

2 stops11h 20m

San Juan Luis Munoz Marin Intl

Mon 11/9

5:35 am-3:25 pm

2 stops12h 50m

$535

Quickest round-trip

BozemanSan Juan

BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl

BZNSJU

Bozeman Gallatin Field

Wed 11/4

6:30 am-6:25 pm

1 stop8h 55m

San Juan Luis Munoz Marin Intl

Mon 11/9

2:21 pm-9:30 pm

1 stop10h 09m

$556

BozemanSan Juan

BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl

BZNSJU

Bozeman Gallatin Field

Thu 11/5

7:55 am-1:10 am

2 stops14h 15m

San Juan Luis Munoz Marin Intl

Sun 11/8

6:05 am-3:25 pm

2 stops12h 20m

$622

BozemanSan Juan

BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl

BZNSJU

Bozeman Gallatin Field

Sat 10/17

8:15 am-8:10 pm

2 stops9h 55m

San Juan Luis Munoz Marin Intl

Wed 10/21

12:40 pm-10:10 pm

2 stops11h 30m

$676

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Puerto Rico?

If you don’t want to visit Puerto Rico in October, then you should wait until February to fly from Montana, when ticket prices are also cheap, with an average price of $549.

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

You could potentially save up to 21% 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

Best Price Found	$338
Fastest flight time	8h 55m
Direct flights	None

The best one-way flight to Puerto Rico from Montana in the past 72 hours is $338. The best round-trip flight deal from Montana to Puerto Rico found on momondo in the last 72 hours is $464.

The fastest flight from Montana to Puerto Rico takes 8h 55m

There are no direct flights from Montana to Puerto Rico. There are no popular flight routes from Montana to Puerto Rico.

Search flight deals

Frequently asked questions about flying from Montana to Puerto Rico

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?
There are 2 operators available for flights from Montana to Puerto Rico as of October 2026.
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
United Airlines	PriceFrom $386	Free Cancellation	Rating 7.4 10,282 reviews		Search United Airlines flights
Southwest	PriceFrom $443	Free Cancellation	Rating 7.9 4,215 reviews		Search Southwest 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

Mon 11/2

Mon 11/9

Email me momondo's favorite deals

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

Other flights from Montana

Other flights to Puerto Rico

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in Puerto Rico

Flights to San Juanfrom $120

Flights to Aguadillafrom $122

Flights to Poncefrom $209

Flights to Viequesfrom $480

Flights to Culebrafrom $379

Flights to Mayagüezfrom $261

Cheap flights from Montana to Puerto Rico from $338

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 10/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Montana to Puerto Rico

Cheap round-trip flights

Cheap one-way flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Southwest flights from Montana to Puerto Rico

Our best Southwest deals on Montana to Puerto Rico flight tickets

American Airlines flights from Montana to Puerto Rico

Our best American Airlines deals on Montana to Puerto Rico flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Montana to Puerto Rico that are best for you.

See travel insights to Puerto Rico from

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

What is the cheapest month to fly to Puerto Rico?

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

What is the cheapest airline that flies from Montana to Puerto Rico?

How long is the flight from Montana to Puerto Rico?

Cheap Montana to Puerto Rico flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Montana to Puerto Rico

Best airlines flying from Montana to Puerto Rico

Compare and see reviews for airlines that fly from Montana to Puerto Rico with momondo

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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

Montana flight routes

According to popular flight searches on momondo this year

Puerto Rico flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Puerto Rico

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Puerto Rico

List of cabin classes available on flights landing in Puerto Rico. Availability may vary depending on flight origin and airline.

Complete your trip to Puerto Rico

Explore popular destinations other users love

According to popular flight searches on momondo this year