HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Puerto Rico

$526+ Cheap flights from Missoula (MSO) to Puerto Rico

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SJU
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Missoula to Puerto Rico with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Missoula to Puerto Rico

Keep the following information in mind while searching for Missoula to Puerto Rico flight deals. Data was last updated October 29, 2025.

Round-trip from

$526
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$301
From Missoula Johnson-Bell Field to Puerto Rico
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($271 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($63 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Missoula to Puerto Rico

Cheapest flights from Missoula to Puerto Rico
Explore the most affordable flight options available from Missoula to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/115:25 amMSO - SJU
2 stops15h 31mDelta
Fri 11/147:00 amSJU - MSO
2 stops13h 34mDelta
Deal found 10/28$685
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Tue 11/117:01 amMSO - SJU
1 stop11h 34mAmerican Airlines
Fri 11/147:15 amSJU - MSO
1 stop15h 51mAmerican Airlines
Deal found 10/28$825
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/16:20 amMSO - SJU
2 stops11h 40mUnited Airlines
Sun 12/78:10 amSJU - MSO
2 stops16h 08mUnited Airlines
Deal found 10/28$849
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:16 pmMSO - SJU
2 stops15h 42mDelta
Sun 12/77:00 amSJU - MSO
2 stops17h 53mDelta
Deal found 10/27$1,021
This Trip.com deal was found by Cheapflights users on 10/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/110:13 pmMSO - SJU
2 stops37h 48mMultiple Airlines
Sat 12/63:55 amSJU - MSO
2 stops32h 36mMultiple Airlines
Deal found 10/27$1,030
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Mon 12/17:00 amMSO - SJU
2 stops24h 10mAmerican Airlines
Sun 12/77:00 amSJU - MSO
1 stop15h 49mAmerican Airlines
Deal found 10/27$1,100

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missoula 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 October 29, 2025.
Use the filters below to find and compare flights from Missoula to Puerto Rico that are best for you.

Fly from

Missoula

Fly to

Puerto Rico

Route

Depart

Return

Price

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Tue 3/3

6:15 am-6:25 pm

1 stop9h 10m

San Juan Luis Munoz Marin Intl

Tue 3/3

2:05 am-4:09 pm

2 stops17h 04m

$526

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Sat 2/7

1:21 pm-12:30 pm

2 stops20h 09m

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

Thu 1/8

1:21 pm-1:08 pm

2 stops20h 47m

San Juan Luis Munoz Marin Intl

Wed 1/21

7:07 am-8:45 pm

1 stop16h 38m

$531

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Best time to book a flight from Missoula to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Missoula 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 Missoula to Puerto Rico
No data available for this route at this time. Please check back soon.

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 October 29, 2025.
Peruse reviews from past customers who have flown with United Airlines from Missoula to Puerto Rico to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,999 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,999 reviews
United Airlines
7.4
Good
8,999 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from Missoula 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 airport do you fly from for flights from Missoula to Puerto Rico?

    Located just 5.5 mi from the city center, Missoula Johnson-Bell Field (MSO) is the airport most travelers will use when flying to Puerto Rico from Missoula.

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

    Airlines like United Airlines and American Airlines fly from Missoula to Puerto Rico in about 9h 10m. The time it takes to get you to your destination can typically vary by up to 10h 59m. The distance from Missoula to Puerto Rico is about 3342 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Missoula 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Missoula to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Luis Munoz Marin Intl flights
Billings to Luis Munoz Marin Intl flights
Missoula to Saint Thomas Island flights
Kalispell to Luis Munoz Marin Intl flights
Missoula to Castries flights
Bozeman to George Town flights
Missoula to Luis Munoz Marin Intl flights
Billings to Oranjestad flights
Billings to Punta Cana flights
Bozeman to Oranjestad flights
Helena to Punta Cana flights
Billings to Santo Domingo flights
Bozeman to Punta Cana flights
Missoula to Christiansted flights
Missoula to Bridgetown flights
Missoula to Oranjestad flights
Kalispell to Saint Thomas Island flights
Billings to Kingston flights
Billings to Castries flights
Bozeman to Santo Domingo flights
Missoula to Montego Bay flights
Kalispell to Providenciales flights
Bozeman to Santiago de los Caballeros flights
Helena to Bridgetown flights
Kalispell to Montego Bay flights
Helena to Port Au Prince flights
Helena to Freeport flights
Great Falls to Freeport flights
Kalispell to Nassau flights

Top airline flying from Missoula to Puerto Rico

Discover the top airline that operate flights from Missoula 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$565Average$738FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.