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Puerto Rico

$253+ Cheap flights from Montana to Puerto Rico

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SJU
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheap flight deals from Montana to Puerto Rico

Keep the following information in mind while searching for Montana to Puerto Rico flight deals. Data was last updated July 28, 2025.

Round-trip from

$505
(United Airlines)

One-way from

$253
(Delta)

Popular in

July

Cheapest in

January

Average price

$655
From Montana to Puerto Rico
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One-way flight from Montana to Puerto Rico
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Montana to Puerto Rico

Cheapest flights from Montana to Puerto Rico
Explore the most affordable flight options available from Montana to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/28:00 amBZN - SJU
2 stops13h 57mUnited Airlines
Thu 10/92:00 pmSJU - BZN
1 stop9h 07mUnited Airlines
Deal found 7/28$505
This Mytrip deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/119:54 pmMSO - SJU
2 stops12h 08mMultiple Airlines
Thu 8/142:11 amSJU - MSO
3 stops33h 27mMultiple Airlines
Deal found 7/27$515
This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/164:54 pmBZN - SJU
2 stops21h 00mAmerican Airlines
Mon 10/207:05 pmSJU - BZN
2 stops22h 56mAmerican Airlines
Deal found 7/27$515
This Mytrip deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/210:07 amBZN - SJU
3 stops22h 57mMultiple Airlines
Thu 10/912:06 pmSJU - BZN
2 stops22h 37mMultiple Airlines
Deal found 7/28$551
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/47:00 amBIL - SJU
2 stops14h 57mUnited Airlines
Wed 10/82:00 pmSJU - BIL
1 stop10h 46mUnited Airlines
Deal found 7/26$595
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/247:00 amBIL - SJU
2 stops14h 59mAmerican Airlines
Wed 9/36:10 amSJU - BIL
2 stops17h 39mAmerican Airlines
Deal found 7/25$611
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:00 amMSO - SJU
2 stops26h 05mAmerican Airlines
Thu 12/118:09 amSJU - MSO
1 stop14h 37mAmerican Airlines
Deal found 7/25$625
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1112:40 pmMSO - SJU
1 stop9h 14mUnited Airlines
Thu 8/142:05 amSJU - MSO
2 stops13h 18mUnited Airlines
Deal found 7/27$685
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:25 pmBZN - SJU
2 stops15h 33mDelta
Wed 12/314:42 pmSJU - BZN
1 stop9h 52mDelta
Deal found 7/26$690
This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/244:57 pmFCA - SJU
1 stop19h 08mAmerican Airlines
Tue 8/267:05 pmSJU - FCA
2 stops17h 58mAmerican Airlines
Deal found 7/28$693
This Alaska Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/164:01 pmBZN - SJU
2 stops20h 19mAlaska Airlines
Mon 10/203:10 pmSJU - BZN
3 stops29h 30mAlaska Airlines
Deal found 7/27$905
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/244:09 pmFCA - SJU
2 stops21h 33mUnited Airlines
Mon 8/251:05 amSJU - FCA
2 stops12h 30mUnited Airlines
Deal found 7/28$1,063

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
Use the filters below to find and compare flights from Montana to Puerto Rico that are best for you.

Fly from

Montana

Fly to

Puerto Rico

Route

Depart

Return

Price

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Thu 10/2

8:00 am-11:57 pm

2 stops13h 57m

San Juan Luis Munoz Marin Intl

Thu 10/9

2:00 pm-9:07 pm

1 stop9h 07m

$505

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Thu 1/8

1:05 pm-1:30 pm

2 stops21h 25m

San Juan Luis Munoz Marin Intl

Wed 1/21

6:50 pm-12:25 pm

2 stops20h 35m

$515

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Thu 10/16

4:54 pm-3:54 pm

2 stops21h 00m

San Juan Luis Munoz Marin Intl

Mon 10/20

7:05 pm-4:01 pm

2 stops22h 56m

$515

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Thu 10/2

10:07 am-11:04 am

3 stops22h 57m

San Juan Luis Munoz Marin Intl

Thu 10/9

12:06 pm-8:43 am

2 stops22h 37m

$551

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Mon 8/11

9:54 pm-8:21 pm

3 stops20h 27m

San Juan Luis Munoz Marin Intl

Thu 8/14

2:11 am-9:38 am

3 stops33h 27m

$587

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Sat 10/4

7:00 am-11:57 pm

2 stops14h 57m

San Juan Luis Munoz Marin Intl

Wed 10/8

2:00 pm-10:46 pm

1 stop10h 46m

$595

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Sun 8/24

7:00 am-11:59 pm

2 stops14h 59m

San Juan Luis Munoz Marin Intl

Wed 9/3

6:10 am-9:49 pm

2 stops17h 39m

$611

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Thu 1/8

6:15 am-12:36 am

2 stops15h 21m

San Juan Luis Munoz Marin Intl

Tue 1/20

2:05 am-1:27 pm

2 stops14h 22m

$670

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Wed 12/17

6:25 pm-12:58 pm

2 stops15h 33m

San Juan Luis Munoz Marin Intl

Wed 12/31

4:42 pm-11:34 pm

1 stop9h 52m

$690

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

Sun 8/24

4:57 pm-2:05 pm

1 stop19h 08m

San Juan Luis Munoz Marin Intl

Tue 8/26

7:05 pm-11:03 am

2 stops17h 58m

$693

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 20 results
1
2

Best time to book a flight from Montana to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Montana with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Montana to Puerto Rico

What is the cheapest month to book a flight from Montana to Puerto Rico?

Currently, September is the cheapest month in which you can book a flight from Montana to Puerto Rico (average of $254). Flying from Montana to Puerto Rico in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Puerto Rico. Reviews last updated July 28, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and United Airlines from Montana to Puerto Rico by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,975 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,892 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
JetBlue
7.3
Good
2,914 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Montana to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Montana to Puerto Rico one-way?

    $253 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and JetBlue, with prices starting from $258 and $321, respectively.

  • Can I find deals for flights from Montana to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Montana to Puerto Rico flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montana to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montana to Puerto Rico.

  • Can I find deals for business class flights from Montana to Puerto Rico?

    Yes. Cheapflights offers flight deals from Montana to Puerto Rico by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montana to Puerto Rico?

    Currently, September is the cheapest month in which you can book a flight from Montana to Puerto Rico (average of $254). Flying from Montana to Puerto Rico in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Montana to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Montana to Puerto Rico

Discover the top 5 airlines that operate flights from Montana to Puerto Rico. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$235Average$712FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$352Average$762FlexibilityNo cancel feeOn-time69%
DeltaCheapest$374Average$394FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$479Average$529FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$484Average$815FlexibilityNo cancel feeOn-time71%

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