$642 Find Cheap Flights from Missoula to Puerto Rico

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 Puerto Rico departing on 10/27. 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

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Flight Deals

Book Cheap Missoula to Puerto Rico Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Missoula to Puerto Rico 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 Puerto Rico

Tue, Oct 27 - Sat, Oct 31
Delta Logo
8:00 am - 11:56 pm
MSO
-
SJU
13h 56m
2 stops
Delta Logo
7:30 am - 12:31 am
SJU
-
MSO
19h 01m
2 stops
$642Delta
Mon, Oct 26 - Thu, Oct 29
United Airlines Logo
6:15 am - 5:25 pm
MSO
-
SJU
9h 10m
1 stop
United Airlines Logo
7:10 am - 9:26 pm
SJU
-
MSO
16h 16m
2 stops
$732United Airlines
Mon, May 25 - Fri, May 29
American Airlines Logo
6:45 am - 4:25 am
MSO
-
SJU
19h 40m
1 stop
American Airlines Logo
6:00 am - 10:38 pm
SJU
-
MSO
18h 38m
2 stops
$801American Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
6:15 am - 5:25 pm
MSO
-
SJU
9h 10m
1 stop
United Airlines Logo
1:25 pm - 9:26 pm
SJU
-
MSO
10h 01m
1 stop
$805United Airlines
Thu, Jun 18 - Wed, Jun 24
American Airlines Logo
2:15 pm - 9:39 am
MSO
-
SJU
17h 24m
2 stops
American Airlines Logo
6:01 am - 10:38 pm
SJU
-
MSO
18h 37m
2 stops
$809American Airlines
Thu, Jun 18 - Wed, Jun 24
American Airlines Logo
2:15 pm - 9:39 am
MSO
-
SJU
17h 24m
2 stops
American Airlines Logo
6:01 am - 10:38 pm
SJU
-
MSO
18h 37m
2 stops
$856American Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
6:15 am - 9:22 pm
MSO
-
SJU
13h 07m
2 stops
United Airlines Logo
1:20 pm - 5:10 pm
SJU
-
MSO
29h 50m
3 stops
$871United Airlines
Thu, Jun 18 - Wed, Jun 24
American Airlines Logo
2:15 pm - 9:39 am
MSO
-
SJU
17h 24m
2 stops
American Airlines Logo
6:01 am - 10:38 pm
SJU
-
MSO
18h 37m
2 stops
$886American Airlines
Tue, Oct 27 - Sat, Oct 31
Alaska Airlines Logo
3:46 pm - 1:45 pm
MSO
-
SJU
19h 59m
2 stops
Alaska Airlines Logo
6:00 am - 10:51 pm
SJU
-
MSO
18h 51m
3 stops
$929Alaska Airlines
Thu, Jun 18 - Wed, Jun 24
American Airlines Logo
2:15 pm - 9:39 am
MSO
-
SJU
17h 24m
2 stops
American Airlines Logo
5:30 am - 10:38 pm
SJU
-
MSO
19h 08m
1 stop
$939American Airlines
Booking Insights

KAYAK's insights & trends for Missoula to Puerto Rico flights

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

What is the cheapest month to fly from Missoula to Puerto Rico?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Missoula to Puerto Rico, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Missoula to Puerto Rico is January, when tickets cost $0 (return) on average. On the other hand, the most expensive months are December and May, when the average cost of round-trip tickets is $1,420 and $966 respectively.

Good to know

Low seasonOctober
Cheapest flight$642
Best time to beat the crowds with an average 61% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from Missoula to San Juan

FAQs - booking Puerto Rico flights

  • How does KAYAK find such low prices on flights from Missoula to Puerto Rico?

    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 Puerto Rico.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Missoula to Puerto Rico 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 Puerto Rico?

    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 from Missoula to Puerto Rico with an airline and back with another airline.

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

    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 from Missoula to Puerto Rico 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 Puerto Rico

 
Need help choosing which airline to fly with from Missoula to Puerto Rico? 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 9701 reviews
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

4.0 OkayManoj, May 2026
IAD - BRU
Read more United Airlines reviews

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

Friendliest Flight Attendant I’ve seen since I flew on Southwest Airlines. The whole trip was outstanding…and arrived Early!

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

I didn’t have a seat assignment and my seat was very dirty on the flight from Frankfurt to Budapest.

Left an hour and a half after the listed time. Up side was it had TV screens on the seat.

No screens or meal options. Freezing cold. Dirty seats. Left late.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Cree was organized and pleasant. Plane had good seating but as it’s a shuttle toilets hadn’t been thoroughly cleaned (eg. bins too full)

I liked that my son and I were reseated next to each other (we had different bookings). I liked that it was a directg flight and mostly on time. I liked that you provided pillows and blankets. Flight attendants were generally courteous. The messaging through wifi did not work well. The food was not good. Seats are very narrow and I felt slightly claustraphobic in the window seat.

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

Everything you need to know for your flight from Missoula to Puerto Rico

Information on your arrival and departure airports