MSO - SJU

$483 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 2/20. 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
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Everything you should know

Cheapest round-trip
$562
Typical prices: $719-$831
United Airlines
Sat 4/11Sat 4/25
MSO - SJU • 2 stops
Cheapest one-way
$483
United Airlines
Fri 2/20
MSO - SJU • 1 stop
Top airlines
United Airlines
Cheapest • from $562 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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

Sat, Apr 11 - Sat, Apr 25
United Airlines Logo
6:15 am - 9:24 pm
MSO
-
SJU
13h 09m
2 stops
United Airlines Logo
7:20 am - 9:35 pm
SJU
-
MSO
16h 15m
2 stops
$562United Airlines
Tue, Apr 7 - Tue, May 5
American Airlines Logo
1:08 pm - 9:13 am
MSO
-
SJU
18h 05m
2 stops
American Airlines Logo
6:45 am - 9:45 pm
SJU
-
MSO
17h 00m
1 stop
$591American Airlines
Tue, Aug 4 - Mon, Aug 10
American Airlines Logo
6:45 am - 11:16 pm
MSO
-
SJU
14h 31m
1 stop
American Airlines Logo
10:32 am - 11:28 pm
SJU
-
MSO
14h 56m
2 stops
$601American Airlines
Tue, Apr 7 - Wed, May 6
United Airlines Logo
6:15 am - 8:38 pm
MSO
-
SJU
12h 23m
2 stops
United Airlines Logo
1:40 pm - 9:30 pm
SJU
-
MSO
9h 50m
1 stop
$619United Airlines
Tue, Apr 7 - Tue, Apr 21
American Airlines Logo
1:08 pm - 9:13 am
MSO
-
SJU
18h 05m
2 stops
American Airlines Logo
6:45 am - 9:45 pm
SJU
-
MSO
17h 00m
1 stop
$630American Airlines
Tue, Apr 7 - Tue, May 5
American Airlines Logo
6:45 am - 11:02 pm
MSO
-
SJU
14h 17m
1 stop
American Airlines Logo
6:45 am - 9:45 pm
SJU
-
MSO
17h 00m
1 stop
$639American Airlines
Sat, Aug 1 - Fri, Aug 7
American Airlines Logo
4:40 pm - 9:33 am
MSO
-
SJU
14h 53m
2 stops
American Airlines Logo
3:00 pm - 11:28 pm
SJU
-
MSO
10h 28m
1 stop
$640American Airlines
Tue, Apr 7 - Tue, Apr 21
American Airlines Logo
6:45 am - 11:02 pm
MSO
-
SJU
14h 17m
1 stop
American Airlines Logo
6:45 am - 9:45 pm
SJU
-
MSO
17h 00m
1 stop
$678American Airlines
Tue, Apr 7 - Wed, May 6
United Airlines Logo
6:15 am - 5:38 pm
MSO
-
SJU
9h 23m
1 stop
United Airlines Logo
1:40 pm - 9:30 pm
SJU
-
MSO
9h 50m
1 stop
$680United Airlines
Sat, Aug 1 - Fri, Aug 7
American Airlines Logo
4:40 pm - 9:33 am
MSO
-
SJU
14h 53m
2 stops
American Airlines Logo
7:05 pm - 12:16 pm
SJU
-
MSO
19h 11m
2 stops
$686American Airlines
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 April.
Find deals

Good to know

Low seasonOctober
Cheapest flight$483
Best time to beat the crowds with an average 61% drop in price.
Most popular time to fly with an average 5% increase in price.
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 $483 for a one-way ticket and $562 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 9269 reviews
8.1Crew
6.6Food
7.7Boarding
7.1Entertainment
7.3Comfort
Airline reviews

Short flight, but no drink/snack service. The flights both going and coming were delayed.

6.0 GoodDaymond, Feb 2026
ORD - SDF
Read more United Airlines reviews

Short flight, but no drink/snack service. The flights both going and coming were delayed.

Much better than Spirit. I was please by the easy fast check in and boarding

Check-in and in-flight staff were better than average. The seat was a fair size but too hard and not enough padding. The cushion/pillow provided is poor (thin and seems to be disposable ,it provides no effective cushioning or support). Food was OK-ish but no choice of inflight snacks and no easy place to get drinks other than water (I could ask for juice by intruding into the staff area at the back of the plane) Entertainment was very good actually. Overall better than I expected from a US-based airline (sorry!) but compared to ANA or Singapore it was so-so. (I live in Japan so they are my comparative airlines)

Everything was on time Will use united again for sure

Plane outlets in my row not working to charge phone. Staff response was, well it should be. Plug into seed for volume not working well. Had to find the sweet spot for plug in or it would shut off and on.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Fine not above and beyond as I had a connection that was delayed due to maintenance

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

Terrible. Our first time back on United for 10 years, the seats in Polaris class are small and uncomfortable. They have squished too many people in to get more $$$. The staff are not friendly and not wanting to accommodate. I asked for two salads rather than a main meal and was advised no we wont do that. Then asked what I would like for breakfast and given something else anyway. I will not be flying United International anytime soon.

Same thing as flight from Pheonix to Newark. Uograded and Promised extra leg room and when I got to the seat it had none.

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

Information on your arrival and departure airports

Missoula (MSO)
Luis Munoz Marin Intl (SJU)