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

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

What airlines fly to Puerto Rico?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to Puerto Rico from Montana according to our data. United Airlines is the first choice among our users, with 67% of people opting to fly with this airline when traveling to Puerto Rico. Keep in mind that there are 4 different airlines that fly to Puerto Rico on a routine basis, so you have a few additional options to choose from.

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 25m on average. Another popular route from Montana to Puerto Rico is flying from Bozeman to San Juan Luis Munoz Marin Intl Airport, which will take roughly 9h 05m. 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 4 operators available for flights from Montana to Puerto Rico as of November 2025.

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.

$222 Cheap Flights from Montana to Puerto Rico in 2025/26

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3:50 pm - 11:20 amBZN-SJU

16h 30m2 stops

6:10 am - 10:15 pmSJU-BZN

19h 05m2 stops

$363Southwest

Find Deal

Mon, Feb 2 - Tue, Feb 10

6:30 pm - 1:05 pmBZN-SJU

15h 35m2 stops

7:30 am - 8:00 pmSJU-BZN

15h 30m2 stops

$375Delta

Find Deal

Fri, Jan 30 - Sat, Feb 7

6:15 am - 6:25 pmBZN-SJU

9h 10m1 stop

7:45 am - 9:33 pmSJU-BZN

16h 48m2 stops

$396United Airlines

Find Deal

Mon, Feb 2 - Tue, Feb 10

6:15 am - 6:25 pmBZN-SJU

9h 10m1 stop

2:05 am - 3:20 pmSJU-BZN

16h 15m2 stops

$424United Airlines

Find Deal

Mon, Feb 2 - Mon, Feb 9

3:19 pm - 2:55 amBZN-SJU

9h 36m1 stop

12:59 am - 10:07 amSJU-BZN

11h 08m1 stop

$436JetBlue

Find Deal

Mon, Mar 9 - Wed, Mar 18

11:17 am - 1:47 amBZN-SJU

12h 30m1 stop

12:59 am - 10:07 amSJU-BZN

11h 08m1 stop

$460JetBlue

Find Deal

Thu, Mar 12 - Mon, Mar 23

1:21 pm - 10:48 amMSO-SJU

18h 27m2 stops

6:00 am - 8:45 pmSJU-MSO

17h 45m2 stops

$531American Airlines

Find Deal

Thu, Jan 8 - Wed, Jan 21

1:42 pm - 10:48 amBZN-SJU

18h 06m2 stops

7:12 pm - 12:50 pmSJU-BZN

20h 38m2 stops

$531American Airlines

Find Deal

Thu, Feb 5 - Mon, Feb 9

5:18 pm - 12:16 amMSO-SJU

27h 58m3 stops

1:27 pm - 9:31 amSJU-MSO

23h 04m2 stops

$533Multiple Airlines

Find Deal

Wed, Dec 10 - Sun, Dec 14

5:18 pm - 12:16 amMSO-SJU

27h 58m3 stops

6:00 am - 9:31 amSJU-MSO

30h 31m3 stops

$559Multiple Airlines

Find Deal

Wed, Dec 10 - Sun, Dec 14

Southwest flights from Montana to Puerto Rico

Our best Southwest deals on Montana to Puerto Rico flight tickets

Southwest

Feb 2

BZN3:50 pmBozeman Gallatin Field

16h 30m

2 stops

SJU11:20 amSan Juan Luis Munoz Marin Intl

Feb 10

SJU6:10 amSan Juan Luis Munoz Marin Intl

19h 05m

2 stops

BZN10:15 pmBozeman Gallatin Field

$363

Find similar

Southwest

Jan 14

BZN3:50 pmBozeman Gallatin Field

15h 30m

2 stops

SJU10:20 amSan Juan Luis Munoz Marin Intl

Jan 21

SJU10:20 amSan Juan Luis Munoz Marin Intl

14h 55m

2 stops

BZN10:15 pmBozeman Gallatin Field

$409

Find similar

Southwest

Feb 6

BZN7:40 amBozeman Gallatin Field

14h 00m

2 stops

SJU12:40 amSan Juan Luis Munoz Marin Intl

Feb 17

SJU5:35 amSan Juan Luis Munoz Marin Intl

12h 10m

2 stops

BZN2:45 pmBozeman Gallatin Field

$474

Find similar

Delta flights from Montana to Puerto Rico

Our best Delta deals on Montana to Puerto Rico flight tickets

Delta

Jan 30

BZN6:30 pmBozeman Gallatin Field

15h 35m

2 stops

SJU1:05 pmSan Juan Luis Munoz Marin Intl

Feb 7

SJU7:30 amSan Juan Luis Munoz Marin Intl

15h 30m

2 stops

BZN8:00 pmBozeman Gallatin Field

$375

Find similar

Delta

Nov 19

BZN6:34 pmBozeman Gallatin Field

19h 46m

2 stops

SJU5:20 pmSan Juan Luis Munoz Marin Intl

Nov 26

SJU3:25 pmSan Juan Luis Munoz Marin Intl

11h 45m

2 stops

BZN12:10 amBozeman Gallatin Field

$630

Find similar

Delta

Nov 18

BZN6:34 pmBozeman Gallatin Field

16h 43m

2 stops

SJU2:17 pmSan Juan Luis Munoz Marin Intl

Nov 22

SJU4:50 pmSan Juan Luis Munoz Marin Intl

9h 44m

1 stop

BZN11:34 pmBozeman Gallatin Field

$745

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Mon 2/2

3:50 pm-11:20 am

2 stops16h 30m

San Juan Luis Munoz Marin Intl

Tue 2/10

6:10 am-10:15 pm

2 stops19h 05m

$363

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Fri 1/30

6:30 pm-1:05 pm

2 stops15h 35m

San Juan Luis Munoz Marin Intl

Sat 2/7

7:30 am-8:00 pm

2 stops15h 30m

$375

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Mon 2/2

6:15 am-6:25 pm

1 stop9h 10m

San Juan Luis Munoz Marin Intl

Tue 2/10

7:45 am-9:33 pm

2 stops16h 48m

$396

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Mon 2/2

6:15 am-6:25 pm

1 stop9h 10m

San Juan Luis Munoz Marin Intl

Mon 2/9

2:05 am-3:20 pm

2 stops16h 15m

$424

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Mon 3/9

3:19 pm-2:55 am

1 stop9h 36m

San Juan Luis Munoz Marin Intl

Wed 3/18

12:59 am-10:07 am

1 stop11h 08m

$436

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Thu 3/12

11:17 am-1:47 am

1 stop12h 30m

San Juan Luis Munoz Marin Intl

Mon 3/23

12:59 am-10:07 am

1 stop11h 08m

$460

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Thu 1/8

1:21 pm-10:48 am

2 stops18h 27m

San Juan Luis Munoz Marin Intl

Wed 1/21

6:00 am-8:45 pm

2 stops17h 45m

$531

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Thu 2/5

1:42 pm-10:48 am

2 stops18h 06m

San Juan Luis Munoz Marin Intl

Mon 2/9

7:12 pm-12:50 pm

2 stops20h 38m

$531

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Wed 12/10

5:18 pm-12:16 am

3 stops27h 58m

San Juan Luis Munoz Marin Intl

Sun 12/14

1:27 pm-9:31 am

2 stops23h 04m

$533

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Wed 12/10

5:18 pm-12:16 am

3 stops27h 58m

San Juan Luis Munoz Marin Intl

Sun 12/14

6:00 am-9:31 am

3 stops30h 31m

$559

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 day to depart on your flight to Puerto Rico?

On average, the least expensive day to fly to Puerto Rico from Montana is on a Sunday. momondo users have found tickets for Sunday departures for as low as $382. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Puerto Rico is Friday, with ticket prices averaging around $761.

What is the cheapest time of day to depart on your flight to Puerto Rico?

Our most recent data shows that the best time of day to fly to Puerto Rico is at noon. Flights from Montana to Puerto Rico during this time can be as low as $487. In contrast, the most expensive time of day to depart to Puerto Rico is in the morning when prices are around $604.

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

You could potentially save up to 30% 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

Direct flights	None

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?
There are 4 operators available for flights from Montana to Puerto Rico as of November 2025.
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
Delta	PriceFrom $208	Free Cancellation	Rating 7.9 8,003 reviews	Search Delta flights
JetBlue	PriceFrom $235	Free Cancellation	Rating 7.2 2,908 reviews	Search JetBlue flights
United Airlines	PriceFrom $352	Free Cancellation	Rating 7.4 9,011 reviews	Search United Airlines flights
Southwest	PriceFrom $479	Free Cancellation	Rating 8.0 4,236 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

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Get notified when prices go down

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

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Wed 12/10

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Find better results for your trip to Puerto Rico

Popular cities in Puerto Rico

Flights to San Juanfrom $96

Flights to Aguadillafrom $176

Flights to Mayagüezfrom $343

Montana flight routes

Flights from Bozeman Gallatin Field to Las Vegas Harry Reid Intl

Flights from Great Falls to Las Vegas Harry Reid Intl

Flights from Missoula Johnson-Bell Field to Las Vegas Harry Reid Intl

Flights from Kalispell Glacier Park to Las Vegas Harry Reid Intl

Flights from Billings Logan Intl to Las Vegas Harry Reid Intl

Flights from Bozeman Gallatin Field to Boise Air Term. Gowen Fld

Cheap flights from Montana to Puerto Rico from $222

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 12/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Price Alerts

Find the cheapest flights from Montana to Puerto Rico

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Southwest flights from Montana to Puerto Rico

Our best Southwest deals on Montana to Puerto Rico flight tickets

Delta flights from Montana to Puerto Rico

Our best Delta deals on Montana to Puerto Rico flight tickets

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

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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 day to depart on your flight to Puerto Rico?

What is the cheapest time of day to depart on your flight to Puerto Rico?

Our most recent data shows that the best time of day to fly to Puerto Rico is at noon. Flights from Montana to Puerto Rico during this time can be as low as $487. In contrast, the most expensive time of day to depart to Puerto Rico is in the morning when prices are around $604.

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

You could potentially save up to 30% on your flight if you consider stops on a Montana to Puerto Rico flight.

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

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

What airlines fly to Puerto Rico?

How long is the flight from Montana to Puerto Rico?

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

Direct flights

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

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?

What documentation or ID do you need to fly 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?

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

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

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

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

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