MSO - SJU

$398 Find Cheap Flights from Missoula to San Juan

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Missoula to Luis Munoz Marin Intl departing on 12/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Juan Luis Munoz Marin Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Missoula to San Juan, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Missoula to San Juan, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Missoula to San Juan (MSO-SJU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Missoula to San Juan that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Missoula to Luis Munoz Marin Intl

Thu, Jan 8 - Wed, Jan 21
American Airlines Logo
1:21 pm - 1:08 pmMSO-SJU
20h 47m2 stops
American Airlines Logo
5:51 pm - 12:50 pmSJU-MSO
21h 59m2 stops
$531American Airlines
Find Deal
Thu, Jan 8 - Wed, Jan 21
American Airlines Logo
7:00 am - 10:22 pmMSO-SJU
12h 22m1 stop
American Airlines Logo
7:00 am - 8:45 pmSJU-MSO
16h 45m1 stop
$570American Airlines
Find Deal
Sun, Oct 19 - Fri, Oct 24
United Airlines Logo
6:25 am - 5:30 pmMSO-SJU
9h 05m1 stop
United Airlines Logo
1:05 am - 4:44 pmSJU-MSO
17h 39m2 stops
$608United Airlines
Find Deal
Mon, Dec 8 - Thu, Dec 11
American Airlines Logo
7:00 am - 10:07 amMSO-SJU
24h 07m2 stops
American Airlines Logo
7:00 am - 8:33 pmSJU-MSO
16h 33m1 stop
$641American Airlines
Find Deal
Thu, Jan 8 - Tue, Jan 20
United Airlines Logo
2:37 pm - 9:00 pmMSO-SJU
27h 23m2 stops
United Airlines Logo
2:05 am - 1:35 pmSJU-MSO
14h 30m2 stops
$707United Airlines
Find Deal
Thu, Jan 8 - Tue, Jan 20
United Airlines Logo
6:00 am - 9:00 pmMSO-SJU
12h 00m2 stops
United Airlines Logo
2:05 am - 4:05 pmSJU-MSO
17h 00m2 stops
$725United Airlines
Find Deal
Thu, Jan 8 - Tue, Jan 20
United Airlines Logo
2:37 pm - 3:40 pmMSO-SJU
22h 03m2 stops
United Airlines Logo
2:05 am - 4:05 pmSJU-MSO
17h 00m2 stops
$741United Airlines
Find Deal
Sun, Oct 19 - Sat, Oct 25
Delta Logo
6:20 pm - 11:56 amMSO-SJU
15h 36m2 stops
Delta Logo
12:46 pm - 10:12 pmSJU-MSO
11h 26m2 stops
$861Delta
Find Deal
Thu, Jan 8 - Wed, Jan 21
Alaska Airlines Logo
6:23 am - 10:22 pmMSO-SJU
12h 59m2 stops
Alaska Airlines Logo
7:00 am - 12:23 pmSJU-MSO
32h 23m3 stops
$879Alaska Airlines
Find Deal
Sun, Oct 19 - Sat, Oct 25
Alaska Airlines Logo
2:07 pm - 2:20 pmMSO-SJU
22h 13m2 stops
Alaska Airlines Logo
3:34 pm - 1:19 pmSJU-MSO
23h 45m3 stops
$2,879Alaska Airlines
Find Deal

Everything you should know

Top airlines
American Airlines
Cheapest • from $531 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$531
Typical prices: $719-1245
American Airlines
Thu 1/8Wed 1/21
MSO - SJU • 2 stops
Cheapest one-way
$398
Delta
Thu 12/25
MSO - SJU • 2 stops
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Luis Munoz Marin Intl!
Booking Insights

KAYAK's insights & trends for Missoula to Luis Munoz Marin Intl flights

Get data-powered insights and trends into flights from Missoula to Luis Munoz Marin Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Missoula to San Juan Luis Munoz Marin Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Missoula to San Juan Luis Munoz Marin Intl Airport departing in January.

Good to know

Low seasonOctober
Cheapest flight$398
Best time to beat the crowds with an average 60% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Missoula to San Juan

When to book flights from Missoula to Luis Munoz Marin Intl

Are your dates flexible? Find out the best times to travel from Missoula to Luis Munoz Marin Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Missoula to San Juan flights

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

    In the last 3 days, the lowest price for a flight from Missoula to San Juan Luis Munoz Marin Intl Airport was $398 for a one-way ticket and $531 for a round-trip.

  • Do I need a passport to fly between Missoula and San Juan?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Missoula and on arrival in San Juan.

  • Which airports will I be using when flying from Missoula to San Juan?

    When flying out of Missoula you will be using Missoula Johnson-Bell Field. You will be landing at San Juan, also known as San Juan Luis Munoz Marin Intl.

  • Which aircraft models fly most regularly from Missoula to San Juan?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Missoula to San Juan?

    Star Alliance is the only airline alliance operating flights between Missoula and San Juan.

  • How does KAYAK find such low prices on flights from Missoula to San Juan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Missoula to San Juan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missoula to San Juan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from Missoula is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Missoula to San Juan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Juan with an airline and back to Missoula with another airline. Booking your flights between Missoula and SJU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missoula to San Juan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Juan from Missoula up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Missoula to Luis Munoz Marin Intl

 
See real verified KAYAK customer reviews for airlines flying from Missoula to San Juan. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Missoula to Luis Munoz Marin Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8933 reviews
6.6Food
8.1Crew
7.7Boarding
7.1Entertainment
7.3Comfort
Airline reviews

It would have been better if the crew has supported my husband's reasons for needing to keep the space clear around his feet, rather than insisting that he put his knapsack in that space.

6.0 GoodAnonymous, Sep 2025ORD - SYR
Read more United Airlines reviews

It would have been better if the crew has supported my husband's reasons for needing to keep the space clear around his feet, rather than insisting that he put his knapsack in that space.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

Check in was quick and easy during early hours. Flight was on time, and customer services was a plus.

Terrible. They wouldn't allow me on my flight on the 14th..

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Everything you need to know for your flight from Missoula to Luis Munoz Marin Intl

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