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Luis Munoz Marin Intl

$515+ 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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SJU
Jul 16 — Jul 231
Wed 7/16
Wed 7/23
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 July 11, 2025.

Round-trip from

$515
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$599
From Missoula Johnson-Bell Field to San Juan Luis Munoz Marin Intl
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Highest demand for flights based on searches. 17% potential increase in price ($164 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 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 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 July 11, 2025.

This American Airlines deal was found by Cheapflights users on 7/8. 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 8/173:55 pmMSO - SJU
2 stops17h 14mAmerican Airlines
Sat 8/237:05 pmSJU - MSO
2 stops19h 11mAmerican Airlines
Deal found 7/8$515
This Mytrip deal was found by Cheapflights users on 7/10. 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.
Fri 7/259:54 pmMSO - SJU
3 stops35h 38mMultiple Airlines
Mon 7/281:37 amSJU - MSO
3 stops34h 01mMultiple Airlines
Deal found 7/10$588
This Delta deal was found by Cheapflights users on 7/9. 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.
Sat 8/95:30 amMSO - SJU
2 stops16h 29mDelta
Sat 8/167:30 amSJU - MSO
2 stops12h 14mDelta
Deal found 7/9$603
This United Airlines deal was found by Cheapflights users on 7/8. 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 8/1712:40 pmMSO - SJU
1 stop9h 14mUnited Airlines
Sat 8/232:00 pmSJU - MSO
1 stop9h 22mUnited Airlines
Deal found 7/8$605
This Alaska Airlines deal was found by Cheapflights users on 7/10. 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.
Fri 7/255:45 amMSO - SJU
3 stops15h 40mAlaska Airlines
Tue 7/296:15 amSJU - MSO
2 stops20h 04mAlaska Airlines
Deal found 7/10$1,396

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 July 11, 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

Sun 8/17

3:55 pm-11:09 am

2 stops17h 14m

San Juan Luis Munoz Marin Intl

Sat 8/23

7:05 pm-12:16 pm

2 stops19h 11m

$515

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Fri 7/25

9:54 pm-11:32 am

3 stops35h 38m

San Juan Luis Munoz Marin Intl

Mon 7/28

1:37 am-9:38 am

3 stops34h 01m

$588

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Sat 8/9

5:30 am-11:59 pm

2 stops16h 29m

San Juan Luis Munoz Marin Intl

Sat 8/16

7:30 am-5:44 pm

2 stops12h 14m

$603

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Sun 8/17

12:40 pm-11:54 pm

1 stop9h 14m

San Juan Luis Munoz Marin Intl

Sat 8/23

2:00 pm-9:22 pm

1 stop9h 22m

$605

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

Fri 7/25

5:45 am-11:25 pm

3 stops15h 40m

San Juan Luis Munoz Marin Intl

Tue 7/29

6:15 am-12:19 am

2 stops20h 04m

$1,396

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

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.

Cheapflights Insights

Everything you need to know about your flight from Missoula to San Juan Luis Munoz Marin Intl Airport

What is the cheapest month to book a flight from Missoula to San Juan Luis Munoz Marin Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Missoula to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Missoula to San Juan Luis Munoz Marin Intl Airport 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 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 July 11, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Delta
8.0
Very good
7,951 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
United Airlines
7.4
Good
8,846 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.

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 2 airlines. Missoula Johnson-Bell Field is conveniently located just 5.5 mi from Missoula’s city center.

  • What are the cheapest airlines flying from Missoula to San Juan Luis Munoz Marin Intl Airport round-trip?

    Flying on American Airlines is currently your cheapest option to San Juan Luis Munoz Marin Intl Airport, with prices starting at $515. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $603 and $605, respectively. American Airlines is currently priced 32% 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.

  • What is the cheapest month to book a flight from Missoula to San Juan Luis Munoz Marin Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Missoula to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Missoula to San Juan Luis Munoz Marin Intl Airport 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

Traveling to a place near Missoula?

Book flights to Missoula if you plan to visit one of these locations
Dorado
Fajardo
Luquillo
Rio Grande
Humacao
Bayamón

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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 2 airlines flying from Missoula to Luis Munoz Marin Intl

Discover the top 2 airlines 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 July 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$484Average$815FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$554Average$754FlexibilityNo cancel feeOn-time69%

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