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Puerto Rico

$218+ 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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SJU
Sep 1 — Sep 81
Tue 9/1
Tue 9/8
1 adult, Economy
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Cheap 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 August 2, 2026.

This United Airlines deal was found by Cheapflights users on 8/1. 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 9/196:30 am
BZN
-
SJU
1 stop9h 08m
United Airlines
Fri 9/251:00 am
SJU
-
BZN
2 stops12h 45m
United Airlines
Deal found 8/1$514
This United Airlines deal was found by Cheapflights users on 7/29. 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 10/16:30 am
BZN
-
SJU
1 stop9h 08m
United Airlines
Sun 10/41:00 am
SJU
-
BZN
2 stops14h 31m
United Airlines
Deal found 7/29$542
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/311:07 am
BZN
-
SJU
1 stop11h 06m
JetBlue
Mon 9/76:27 pm
SJU
-
BZN
2 stops19h 14m
JetBlue
Deal found 7/27$547
This Delta deal was found by Cheapflights users on 7/29. 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.
Fri 10/305:30 am
BZN
-
SJU
2 stops14h 48m
Delta
Tue 11/103:35 pm
SJU
-
BZN
2 stops11h 34m
Delta
Deal found 7/29$559
This Southwest deal was found by Cheapflights users on 7/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/33:30 pm
BZN
-
SJU
2 stops15h 40m
Southwest
Wed 9/910:30 am
SJU
-
BZN
2 stops11h 35m
Southwest
Deal found 7/30$572
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.
Fri 10/301:47 pm
BZN
-
SJU
2 stops17h 59m
American Airlines
Tue 11/106:55 pm
SJU
-
BZN
2 stops20h 57m
American Airlines
Deal found 7/28$578
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.
Mon 10/56:30 am
BZN
-
SJU
1 stop9h 08m
United Airlines
Tue 10/61:00 am
SJU
-
BZN
2 stops16h 28m
United Airlines
Deal found 7/28$582
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.
Wed 9/97:00 am
BIL
-
SJU
2 stops14h 50m
United Airlines
Fri 9/181:00 am
SJU
-
BIL
2 stops12h 02m
United Airlines
Deal found 7/28$586
This American Airlines deal was found by Cheapflights users on 7/30. 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 12/101:45 pm
MSO
-
SJU
2 stops17h 50m
American Airlines
Sun 12/136:42 pm
SJU
-
MSO
2 stops20h 53m
American Airlines
Deal found 7/30$588
This American Airlines deal was found by Cheapflights users on 7/30. 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 10/112:02 pm
BZN
-
SJU
2 stops19h 22m
American Airlines
Mon 10/54:29 pm
SJU
-
BZN
2 stops22h 28m
American Airlines
Deal found 7/30$588
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 9/107:00 am
BIL
-
SJU
2 stops14h 50m
United Airlines
Mon 9/141:00 am
SJU
-
BIL
2 stops14h 21m
United Airlines
Deal found 7/28$589
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/33:30 pm
BZN
-
SJU
2 stops15h 40m
Southwest
Mon 9/76:00 am
SJU
-
BZN
2 stops12h 30m
Southwest
Deal found 7/27$594

Find 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 August 2, 2026.

Round-trip from

$514
(United Airlines)

One-way from

$218
(United Airlines)

Popular in

May

Cheapest in

November

Average price

$616
From Montana to Puerto Rico
Search Deals
One-way flight from Montana to Puerto Rico
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

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 August 2, 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

Thu 10/1

6:30 am-5:38 pm

1 stop9h 08m

San Juan Luis Munoz Marin Intl

Sun 10/4

1:00 am-1:31 pm

2 stops14h 31m

$514

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Fri 10/30

6:30 am-5:25 pm

1 stop8h 55m

San Juan Luis Munoz Marin Intl

Tue 11/10

2:21 pm-9:30 pm

1 stop10h 09m

$514

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Sat 9/19

6:30 am-5:38 pm

1 stop9h 08m

San Juan Luis Munoz Marin Intl

Fri 9/25

1:00 am-10:05 am

1 stop11h 05m

$526

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Tue 1/12

8:00 am-11:50 pm

2 stops12h 50m

San Juan Luis Munoz Marin Intl

Wed 1/20

3:15 pm-12:31 am

2 stops12h 16m

$538

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Fri 1/22

5:32 pm-11:50 am

2 stops15h 18m

San Juan Luis Munoz Marin Intl

Sat 1/30

8:10 am-9:26 pm

2 stops16h 16m

$538

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Tue 1/12

5:32 pm-11:50 am

2 stops15h 18m

San Juan Luis Munoz Marin Intl

Wed 1/20

8:10 am-9:26 pm

2 stops16h 16m

$538
Quickest round-trip

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Mon 10/5

6:30 am-5:38 pm

1 stop9h 08m

San Juan Luis Munoz Marin Intl

Wed 10/7

2:00 pm-9:04 pm

1 stop9h 04m

$582

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Thu 12/10

1:45 pm-10:35 am

2 stops17h 50m

San Juan Luis Munoz Marin Intl

Sun 12/13

6:42 pm-12:35 pm

2 stops20h 53m

$588

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Thu 9/10

7:00 am-11:50 pm

2 stops14h 50m

San Juan Luis Munoz Marin Intl

Mon 9/14

1:00 am-1:21 pm

2 stops14h 21m

$589

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Thu 9/3

3:30 pm-9:10 am

2 stops15h 40m

San Juan Luis Munoz Marin Intl

Mon 9/7

6:00 am-4:30 pm

2 stops12h 30m

$594

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 25 resultsSorted by cheapest first
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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, October is the cheapest month in which you can book a flight from Montana to Puerto Rico (average of $363). Flying from Montana to Puerto Rico in June is currently the most expensive (average of $1,291). 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.

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.

  • How long is the flight from Montana to Puerto Rico?

    For as low as $514, United Airlines can have you in Puerto Rico from Montana in 9h 08m. The distance from Montana to Puerto Rico is about 3184 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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, October is the cheapest month in which you can book a flight from Montana to Puerto Rico (average of $363). Flying from Montana to Puerto Rico in June is currently the most expensive (average of $1,291). 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.
Newark to Luis Munoz Marin Intl flights
John F Kennedy Intl to Luis Munoz Marin Intl flights
John F Kennedy Intl to Santiago de los Caballeros flights
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Newark to Santiago de los Caballeros flights
John F Kennedy Intl to Punta Cana flights
John F Kennedy Intl to Santo Domingo flights
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John F Kennedy Intl to Oranjestad flights
Newark to Punta Cana flights
John F Kennedy Intl to Montego Bay flights
O'Hare Intl to Luis Munoz Marin Intl flights
Newark to Montego Bay flights
Boston to Luis Munoz Marin Intl flights
Dulles Intl to Luis Munoz Marin Intl flights
Reagan-National to Luis Munoz Marin Intl flights
LaGuardia to Punta Cana flights
Atlanta to Luis Munoz Marin Intl flights
Dallas/Fort Worth to Luis Munoz Marin Intl flights
John F Kennedy Intl to Kingston flights
Hartford to Luis Munoz Marin Intl flights
LaGuardia to Santo Domingo flights
Boston to Oranjestad flights
Hobby to Luis Munoz Marin Intl flights
Tampa to Luis Munoz Marin Intl flights
Fort Lauderdale to Luis Munoz Marin Intl flights
Newark to Nassau flights
John F Kennedy Intl to Willemstad flights
George Bush Intcntl to Luis Munoz Marin Intl flights
LaGuardia to Montego Bay flights
Boston to Punta Cana flights
John F Kennedy Intl to Port of Spain flights
Dulles Intl to Punta Cana flights
Atlanta to Montego Bay flights
John F Kennedy Intl to Bridgetown flights
O'Hare Intl to Punta Cana flights
John F Kennedy Intl to Nassau flights
Newark to Simpson Bay flights
Philadelphia to Punta Cana flights
Orlando to Punta Cana flights
LaGuardia to Santiago de los Caballeros flights
Newark to Providenciales flights
Atlanta to Punta Cana flights
Boston to Santo Domingo flights

Top 2 airlines flying from Montana to Puerto Rico

Discover the top 2 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 August 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$300Average$612FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$443Average$616FlexibilityNo cancel feeOn-time63%

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