MSO - SJU

$442 Find Cheap Flights from Missoula to San Juan Airport

This is the cheapest round-trip 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 12/11. 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, 0 bags

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
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$442
Multiple Airlines
Thu 12/11Thu 12/18
MSO - SJU • 3 stops
Cheapest one-way
Multiple Airlines
Fri 11/14
MSO - SJU • multi-stop
Top airlines
United Airlines
Cheapest • from $495 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Missoula to Luis Munoz Marin Intl (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 Luis Munoz Marin Intl 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, Dec 11 - Thu, Dec 18
Multiple Airlines Logo
10:26 pm - 12:45 amMSO-SJU
23h 19m3 stops
Multiple Airlines Logo
6:00 am - 12:21 pmSJU-MSO
33h 21m3 stops
$442Multiple Airlines
Find Deal
Tue, Mar 3 - Tue, Mar 10
Delta Logo
7:55 am - 11:58 pmMSO-SJU
13h 03m2 stops
Delta Logo
6:15 am - 8:17 pmSJU-MSO
16h 02m2 stops
$495Delta
Find Deal
Tue, Apr 14 - Wed, Apr 22
United Airlines Logo
6:15 am - 5:38 pmMSO-SJU
9h 23m1 stop
United Airlines Logo
1:40 pm - 9:39 pmSJU-MSO
9h 59m1 stop
$504United Airlines
Find Deal
Mon, Feb 2 - Tue, Feb 10
American Airlines Logo
7:00 am - 10:26 pmMSO-SJU
12h 26m1 stop
American Airlines Logo
6:00 am - 8:45 pmSJU-MSO
17h 45m2 stops
$531American Airlines
Find Deal
Mon, Feb 2 - Mon, Feb 9
United Airlines Logo
6:00 am - 12:36 amMSO-SJU
15h 36m2 stops
United Airlines Logo
2:05 am - 4:05 pmSJU-MSO
17h 00m2 stops
$540United Airlines
Find Deal
Thu, Jan 8 - Wed, Jan 21
American Airlines Logo
7:00 am - 10:26 pmMSO-SJU
12h 26m1 stop
American Airlines Logo
7:07 am - 8:45 pmSJU-MSO
16h 38m1 stop
$570American Airlines
Find Deal
Thu, Dec 11 - Thu, Dec 18
United Airlines Logo
6:15 am - 10:22 pmMSO-SJU
13h 07m2 stops
United Airlines Logo
8:10 am - 9:41 pmSJU-MSO
16h 31m2 stops
$580United Airlines
Find Deal
Tue, Feb 3 - Mon, Feb 9
United Airlines Logo
6:00 am - 10:22 pmMSO-SJU
13h 22m2 stops
United Airlines Logo
2:05 am - 4:05 pmSJU-MSO
17h 00m2 stops
$585United Airlines
Find Deal
Mon, Feb 2 - Tue, Feb 10
Delta Logo
6:05 pm - 4:52 pmMSO-SJU
19h 47m2 stops
Delta Logo
3:20 pm - 12:29 amSJU-MSO
12h 09m2 stops
$590Delta
Find Deal
Sat, Jan 31 - Tue, Feb 10
United Airlines Logo
2:37 pm - 6:11 amMSO-SJU
12h 34m2 stops
United Airlines Logo
2:25 pm - 9:51 pmSJU-MSO
10h 26m1 stop
$603United Airlines
Find Deal
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 December.

Good to know

Low seasonOctober
Cheapest flight$442
Best time to beat the crowds with an average 63% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Missoula to San Juan Airport

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 Airport 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 $442 for a round-trip ticket.

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

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

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

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

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

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

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

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

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

    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 Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan Airport 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 Airport?

    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 Airport 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 Airport?

    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 Airport 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 9017 reviews
7.7Boarding
7.1Entertainment
6.6Food
8.1Crew
7.3Comfort
Airline reviews

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

10.0 ExcellentDavid, Nov 2025IAD - BTV
Read more United Airlines reviews

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

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

Information on your arrival and departure airports