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Puerto Rico

$270+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SJU
Apr 18 — Apr 251
Sat 4/18
Sat 4/25
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 March 19, 2026.

This Delta deal was found by Cheapflights users on 3/18. 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.
Tue 4/145:59 am
BZN
-
SJU
2 stops15h 13m
Delta
Wed 4/296:15 am
SJU
-
BZN
1 stop9h 21m
Delta
Deal found 3/18$444
This Southwest deal was found by Cheapflights users on 3/17. 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.
Tue 4/143:20 pm
BZN
-
SJU
2 stops17h 15m
Southwest
Wed 4/298:10 am
SJU
-
BZN
2 stops15h 45m
Southwest
Deal found 3/17$468
This Southwest deal was found by Cheapflights users on 3/15. 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.
Sat 9/54:10 pm
BZN
-
SJU
2 stops16h 35m
Southwest
Sat 9/125:05 am
SJU
-
BZN
2 stops12h 30m
Southwest
Deal found 3/15$474
This United Airlines deal was found by Cheapflights users on 3/18. 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.
Tue 4/146:34 am
BZN
-
SJU
2 stops15h 16m
United Airlines
Tue 4/281:00 am
SJU
-
BZN
2 stops12h 31m
United Airlines
Deal found 3/18$475
This Southwest deal was found by Cheapflights users on 3/15. 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.
Tue 5/263:20 pm
BZN
-
SJU
2 stops17h 15m
Southwest
Thu 6/2511:35 am
SJU
-
BZN
2 stops13h 55m
Southwest
Deal found 3/15$514
This Southwest deal was found by Cheapflights users on 3/14. 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.
Fri 5/810:55 am
BZN
-
SJU
2 stops11h 00m
Southwest
Tue 5/198:10 am
SJU
-
BZN
2 stops18h 05m
Southwest
Deal found 3/14$516
This Southwest deal was found by Cheapflights users on 3/17. 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 4/167:20 am
BZN
-
SJU
2 stops14h 35m
Southwest
Wed 4/228:10 am
SJU
-
BZN
2 stops15h 45m
Southwest
Deal found 3/17$529
This Delta deal was found by Cheapflights users on 3/14. 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.
Tue 5/55:59 am
BZN
-
SJU
2 stops12h 25m
Delta
Sat 5/164:10 pm
SJU
-
BZN
1 stop9h 34m
Delta
Deal found 3/14$534
This American Airlines deal was found by Cheapflights users on 3/17. 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 4/161:43 pm
BZN
-
SJU
2 stops17h 30m
American Airlines
Wed 4/2211:59 pm
SJU
-
BZN
1 stop14h 54m
American Airlines
Deal found 3/17$544
This American Airlines deal was found by Cheapflights users on 3/16. 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.
Tue 4/281:51 pm
BIL
-
SJU
2 stops20h 38m
American Airlines
Sun 5/1011:59 pm
SJU
-
BIL
1 stop15h 22m
American Airlines
Deal found 3/16$544
This Southwest deal was found by Cheapflights users on 3/18. 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.
Sun 4/264:25 pm
BZN
-
SJU
2 stops14h 45m
Southwest
Sun 5/36:25 am
SJU
-
BZN
2 stops18h 20m
Southwest
Deal found 3/18$545
This Southwest deal was found by Cheapflights users on 3/18. 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.
Sat 4/252:55 pm
BZN
-
SJU
2 stops16h 10m
Southwest
Sun 5/36:25 am
SJU
-
BZN
2 stops18h 20m
Southwest
Deal found 3/18$548

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 March 19, 2026.

Round-trip from

$444
(Delta)

One-way from

$270
(Southwest)

Popular in

December

Cheapest in

November

Average price

$591
From Montana to Puerto Rico
Search Deals
One-way flight from Montana to Puerto Rico
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 19, 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

Tue 4/14

3:20 pm-10:35 am

2 stops17h 15m

San Juan Luis Munoz Marin Intl

Wed 4/29

8:10 am-9:55 pm

2 stops15h 45m

$468

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Sat 9/5

4:10 pm-10:45 am

2 stops16h 35m

San Juan Luis Munoz Marin Intl

Sat 9/12

5:05 am-3:35 pm

2 stops12h 30m

$474

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Tue 4/14

6:34 am-11:50 pm

2 stops15h 16m

San Juan Luis Munoz Marin Intl

Tue 4/28

1:00 am-11:31 am

2 stops12h 31m

$475

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Mon 8/17

8:35 am-11:50 pm

2 stops13h 15m

San Juan Luis Munoz Marin Intl

Mon 8/24

6:00 am-1:55 pm

2 stops9h 55m

$514

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Tue 5/12

1:51 pm-9:13 am

2 stops17h 22m

San Juan Luis Munoz Marin Intl

Fri 5/15

5:45 am-10:43 pm

2 stops18h 58m

$544

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Sat 4/25

2:55 pm-9:05 am

2 stops16h 10m

San Juan Luis Munoz Marin Intl

Sun 5/3

6:25 am-10:45 pm

2 stops18h 20m

$548

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Tue 4/14

6:34 am-9:24 pm

2 stops12h 50m

San Juan Luis Munoz Marin Intl

Thu 4/16

1:00 am-1:34 pm

2 stops14h 34m

$574

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Tue 4/28

1:51 pm-10:53 am

2 stops19h 02m

San Juan Luis Munoz Marin Intl

Sun 5/10

5:45 am-10:43 pm

2 stops18h 58m

$631

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

Sun 5/31

4:25 pm-9:10 am

2 stops14h 45m

San Juan Luis Munoz Marin Intl

Thu 6/4

1:15 pm-1:10 am

2 stops13h 55m

$652

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Mon 4/13

6:18 pm-11:45 am

2 stops15h 27m

San Juan Luis Munoz Marin Intl

Thu 4/23

7:30 am-8:02 pm

2 stops14h 32m

$681

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/16

Showing 1-10 of 40 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 $260). Flying from Montana to Puerto Rico in December is currently the most expensive (average of $554). 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 $475, Southwest can have you in Puerto Rico from Montana in 15h 16m. 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 $260). Flying from Montana to Puerto Rico in December is currently the most expensive (average of $554). 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
John F Kennedy Intl to Santo Domingo flights
LaGuardia to Luis Munoz Marin Intl flights
Newark to Santiago de los Caballeros flights
O'Hare Intl to Luis Munoz Marin Intl flights
Dulles Intl to Luis Munoz Marin Intl flights
Baltimore to Luis Munoz Marin Intl flights
Philadelphia to Luis Munoz Marin Intl flights
John F Kennedy Intl to Oranjestad flights
John F Kennedy Intl to Punta Cana flights
Newark to Oranjestad flights
Boston to Luis Munoz Marin Intl flights
John F Kennedy Intl to Montego Bay flights
Orlando to Luis Munoz Marin Intl flights
Newark to Punta Cana flights
Dallas/Fort Worth to Luis Munoz Marin Intl flights
Atlanta to Luis Munoz Marin Intl flights
Reagan-National to Luis Munoz Marin Intl flights
Newark to Santo Domingo flights
Newark to Montego Bay flights
Hobby to Luis Munoz Marin Intl flights
LaGuardia to Punta Cana flights
Hartford to Luis Munoz Marin Intl flights
John F Kennedy Intl to Kingston flights
Fort Lauderdale to Luis Munoz Marin Intl flights
Atlanta to Punta Cana flights
Tampa to Luis Munoz Marin Intl flights
Dulles Intl to Punta Cana flights
Newark to Nassau flights
John F Kennedy Intl to Nassau flights
George Bush Intcntl to Luis Munoz Marin Intl flights
John F Kennedy Intl to Providenciales flights
Boston to Oranjestad flights
Raleigh to Luis Munoz Marin Intl flights
LaGuardia to Santiago de los Caballeros flights
LaGuardia to Santo Domingo flights
Newark to Simpson Bay flights
Boston to Punta Cana flights
Dallas/Fort Worth to Punta Cana flights
Philadelphia to Punta Cana flights
John F Kennedy Intl to Bridgetown flights
Fort Lauderdale to Punta Cana flights
LaGuardia to Montego Bay flights
John F Kennedy Intl to Port of Spain flights
Baltimore to Punta Cana flights
Miami to Luis Munoz Marin Intl 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 March 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$363Average$540FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$386Average$619FlexibilityNo cancel feeOn-time69%

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