$301 Find Cheap Flights from Missoula to Puerto Rico

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 Puerto Rico departing on 7/9. 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

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Cheap Flights from Missoula to Puerto Rico

 
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

Thu, Jul 24 - Thu, Jul 31
 Logo
12:24 pm - 11:32 amMSO-SJU
45h 08m3 stops
 Logo
11:59 pm - 3:30 pmSJU-MSO
17h 31m2 stops
Sun, Nov 2 - Fri, Nov 7
Delta Logo
5:35 am - 11:34 pmMSO-SJU
14h 59m2 stops
Delta Logo
3:25 pm - 12:31 amSJU-MSO
12h 06m2 stops
$550Delta
Find Deal
Wed, Jul 9 - Mon, Jul 21
American Airlines Logo
1:47 pm - 5:06 amMSO-SJU
13h 19m1 stop
American Airlines Logo
3:23 pm - 11:29 pmSJU-MSO
10h 06m1 stop
$558American Airlines
Find Deal
Thu, Jul 24 - Wed, Jul 30
 Logo
12:24 pm - 11:32 amMSO-SJU
45h 08m3 stops
 Logo
1:37 am - 3:30 pmSJU-MSO
39h 53m2 stops
Thu, Jul 24 - Thu, Jul 31
 Logo
12:24 pm - 11:32 amMSO-SJU
45h 08m3 stops
 Logo
1:07 pm - 3:30 pmSJU-MSO
28h 23m3 stops
Wed, Jul 9 - Mon, Jul 21
American Airlines Logo
7:03 am - 5:06 amMSO-SJU
20h 03m1 stop
American Airlines Logo
6:15 am - 9:48 pmSJU-MSO
17h 33m1 stop
$590American Airlines
Find Deal
Sun, Nov 2 - Thu, Nov 6
United Airlines Logo
5:25 am - 5:25 pmMSO-SJU
9h 00m1 stop
United Airlines Logo
2:05 am - 1:33 pmSJU-MSO
14h 28m2 stops
$615United Airlines
Find Deal
Thu, Jul 24 - Wed, Jul 30
United Airlines Logo
12:40 pm - 11:54 pmMSO-SJU
9h 14m1 stop
United Airlines Logo
1:10 am - 1:23 pmSJU-MSO
14h 13m2 stops
$687United Airlines
Find Deal
Wed, Jul 9 - Sun, Jul 20
Alaska Airlines Logo
6:35 am - 11:25 pmMSO-SJU
14h 50m3 stops
Alaska Airlines Logo
12:59 am - 5:56 pmSJU-MSO
18h 57m2 stops
$1,474Alaska Airlines
Find Deal
Wed, Jul 9 - Mon, Jul 21
Alaska Airlines Logo
6:35 am - 11:25 pmMSO-SJU
14h 50m3 stops
Alaska Airlines Logo
6:15 am - 12:19 amSJU-MSO
20h 04m2 stops
$1,749Alaska Airlines
Find Deal
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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 September, when tickets cost $509 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of round-trip tickets is $1,031 and $897 respectively.


Good to know

Low seasonSeptember
High seasonFebruary
Cheapest flight$301
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly and prices are also 6% lower on average.
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.

  • What is the cheapest time of day to fly to Puerto Rico?

    The cheapest time of day to fly to Puerto Rico is generally in the afternoon, when round-trip flights cost $651 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Puerto Rico is generally in the evening, which is peak travel time and where the average cost of a ticket is $769.

Top airlines 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 8798 reviews
7.7Boarding
7.3Comfort
7.0Entertainment
8.1Crew
6.6Food
Airline reviews

United airlines, mediocre at best. No issues , nothing great . Worked for me

4.0 OkayAnonymous, Jun 2025CLT - IAD
Read more United Airlines reviews

United airlines, mediocre at best. No issues , nothing great . Worked for me

Boarding experience was smooth. Flight attendants were friendly and helpful. Entertainment system on the Houston-Edmonton flight did not function for passengers on the left side of the aisle. On the bird's eye flight from Quito to Houston, they should not serve a meal. No one needs to eat after midnight and it is disturbing for those passengers trying to sleep.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Terrible. Out flight was delayed for 21 (twenty one) hours. United is a joke.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

The food was the worst I’ve had on any flight I’ve ever been on.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

Food was terrible, all served at once, poor quality . Wine and bread offered only once.

I’m impressed that we were on time in Sacramento after having a late departure in Newark and our made it. The staff was friendly and warm.

Cramped seats. FAA should make airlines have more legroom, for even short people complain

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

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

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