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Luis Munoz Marin Intl

$531+ Cheap flights from Missoula (MSO) to Luis Munoz Marin Intl (SJU)

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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SJU
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheap flight deals from Missoula to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Missoula (MSO) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$531
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$301
Provider with most accurate pricing for Missoula Johnson-Bell Field-San Juan Luis Munoz Marin Intl flight deals.
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Provider most trusted by Cheapflights users for Missoula Johnson-Bell Field-San Juan Luis Munoz Marin Intl flights.
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From Missoula Johnson-Bell Field to San Juan Luis Munoz Marin Intl
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Highest demand for flights based on searches. 25% potential increase in price ($271 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($63 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Missoula to Luis Munoz Marin Intl

Cheapest flights from Missoula to Luis Munoz Marin Intl
Explore the most affordable flight options available from Missoula to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

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
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/14:20 pmMSO - SJU
3 stops19h 40mAlaska Airlines
Sun 12/77:00 amSJU - MSO
3 stops19h 55mAlaska Airlines
Deal found 10/28$4,758

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missoula to Luis Munoz Marin Intl 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 28, 2025.
Use the filters below to find and compare flights from Missoula to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Missoula

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

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

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Tue 2/17

1:24 pm-10:07 am

2 stops17h 43m

San Juan Luis Munoz Marin Intl

Tue 2/24

7:30 am-9:45 pm

1 stop17h 15m

$598

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Tue 3/3

6:15 am-10:22 pm

2 stops13h 07m

San Juan Luis Munoz Marin Intl

Wed 3/4

8:35 am-9:57 pm

2 stops16h 22m

$616

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Compare providers for flights from Missoula to Luis Munoz Marin Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Missoula to Luis Munoz Marin Intl in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Missoula-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Missoula-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Missoula-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Missoula-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Missoula-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Missoula to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl 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.

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated October 28, 2025.
Read reviews from past customers who have flown United Airlines from Missoula to San Juan Luis Munoz Marin Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,001 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

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
9,001 reviews
United Airlines
7.4
Good
9,001 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

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 Luis Munoz Marin Intl. 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 San Juan Luis Munoz Marin Intl?

    Most people fly from Missoula Johnson-Bell Field (MSO) if they book a flight from Missoula to San Juan Luis Munoz Marin Intl. On average, Johnson-Bell Field has 0 outbound flights to San Juan Luis Munoz Marin Intl per day from 1 airline. Missoula Johnson-Bell Field is conveniently located just 5.5 mi from Missoula’s city center.

  • How long is the flight from Missoula to San Juan Luis Munoz Marin Intl Airport?

    A quick flight from Missoula to San Juan Luis Munoz Marin Intl Airport can take about 20h 09m. American Airlines provides one of the quickest options available for as low as $531. The distance between Missoula and San Juan Luis Munoz Marin Intl Airport is about 3342 mi.

  • What is the cheapest airline to fly from Missoula to San Juan Luis Munoz Marin Intl Airport round-trip?

    Flying on United Airlines is currently your cheapest option to San Juan Luis Munoz Marin Intl Airport, with prices starting at $565. United Airlines is currently priced 28% below the average price you’ll pay for this route.

  • Can I find deals for flights from Missoula to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Missoula to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missoula to Luis Munoz Marin Intl?

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

  • Can I find deals for business class flights from Missoula to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Missoula to Luis Munoz Marin Intl 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

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Dorado
Fajardo
Rio Grande
Luquillo
Humacao

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Alternative routes for Missoula to Luis Munoz Marin Intl

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
Kalispell to Luis Munoz Marin Intl flights

Top airline flying from Missoula to Luis Munoz Marin Intl

Discover the top airline that operate flights from Missoula to Luis Munoz Marin Intl. 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 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$565Average$738FlexibilityNo cancel feeOn-time69%

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