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Cheap flights from Missoula to Puerto Rico from $398

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missoula to Puerto Rico departing on 12/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Missoula to Puerto Rico

Cheap round-trip flights

Delta Logo
6:16 pm - 12:44 pmMSO-SJU
15h 28m2 stops
Delta Logo
3:20 pm - 12:35 amSJU-MSO
12h 15m2 stops
$531Delta
Find Deal
lun., dic. 8 - jue., dic. 11
Delta Logo
6:16 pm - 12:44 pmMSO-SJU
15h 28m2 stops
Delta Logo
7:00 am - 12:35 amSJU-MSO
20h 35m2 stops
$560Delta
Find Deal
lun., dic. 8 - jue., dic. 11
American Airlines Logo
7:00 am - 10:14 pmMSO-SJU
12h 14m1 stop
American Airlines Logo
6:45 am - 9:41 pmSJU-MSO
17h 56m1 stop
$570American Airlines
Find Deal
jue., ene. 8 - mié., ene. 21
American Airlines Logo
7:00 am - 10:14 pmMSO-SJU
12h 14m1 stop
American Airlines Logo
6:45 am - 9:41 pmSJU-MSO
17h 56m1 stop
$598American Airlines
Find Deal
jue., ene. 8 - mié., ene. 21
American Airlines Logo
7:00 am - 11:59 amMSO-SJU
25h 59m2 stops
American Airlines Logo
7:00 am - 8:33 pmSJU-MSO
16h 33m1 stop
$641American Airlines
Find Deal
lun., dic. 8 - jue., dic. 11
United Airlines Logo
6:15 am - 6:25 pmMSO-SJU
9h 10m1 stop
United Airlines Logo
2:25 pm - 9:18 pmSJU-MSO
9h 53m1 stop
$688United Airlines
Find Deal
lun., dic. 8 - jue., dic. 11
United Airlines Logo
6:00 am - 6:25 pmMSO-SJU
9h 25m1 stop
United Airlines Logo
2:05 am - 1:35 pmSJU-MSO
14h 30m2 stops
$725United Airlines
Find Deal
jue., ene. 8 - mar., ene. 20
United Airlines Logo
6:00 am - 9:00 pmMSO-SJU
12h 00m2 stops
United Airlines Logo
2:05 am - 9:51 pmSJU-MSO
22h 46m3 stops
$765United Airlines
Find Deal
jue., ene. 8 - mar., ene. 20
Alaska Airlines Logo
6:30 pm - 10:14 pmMSO-SJU
24h 44m3 stops
Alaska Airlines Logo
7:20 am - 11:57 pmSJU-MSO
19h 37m2 stops
$987Alaska Airlines
Find Deal
jue., ene. 8 - mié., ene. 21
Alaska Airlines Logo
6:35 am - 4:55 amMSO-SJU
19h 20m3 stops
Alaska Airlines Logo
7:20 am - 11:59 pmSJU-MSO
19h 39m2 stops
$1,622Alaska Airlines
Find Deal
jue., feb. 19 - dom., mar. 1

American Airlines flights from Missoula to Puerto Rico

Our best American Airlines deals on Missoula to Puerto Rico flight tickets
American Airlines
Jan 8
MSO7:00 amMissoula Johnson-Bell Field
12h 14m
1 stop
SJU10:14 pmSan Juan Luis Munoz Marin Intl
Jan 21
SJU6:45 amSan Juan Luis Munoz Marin Intl
17h 56m
1 stop
MSO9:41 pmMissoula Johnson-Bell Field
$570
Find similar
American Airlines
Jan 8
MSO7:00 amMissoula Johnson-Bell Field
12h 14m
1 stop
SJU10:14 pmSan Juan Luis Munoz Marin Intl
Jan 21
SJU6:45 amSan Juan Luis Munoz Marin Intl
17h 56m
1 stop
MSO9:41 pmMissoula Johnson-Bell Field
$598
Find similar
American Airlines
Dec 8
MSO7:00 amMissoula Johnson-Bell Field
25h 59m
2 stops
SJU11:59 amSan Juan Luis Munoz Marin Intl
Dec 11
SJU7:00 amSan Juan Luis Munoz Marin Intl
16h 33m
1 stop
MSO8:33 pmMissoula Johnson-Bell Field
$641
Find similar

United Airlines flights from Missoula to Puerto Rico

Our best United Airlines deals on Missoula to Puerto Rico flight tickets
United Airlines
Dec 8
MSO6:15 amMissoula Johnson-Bell Field
9h 10m
1 stop
SJU6:25 pmSan Juan Luis Munoz Marin Intl
Dec 11
SJU2:25 pmSan Juan Luis Munoz Marin Intl
9h 53m
1 stop
MSO9:18 pmMissoula Johnson-Bell Field
$688
Find similar
United Airlines
Jan 8
MSO6:00 amMissoula Johnson-Bell Field
9h 25m
1 stop
SJU6:25 pmSan Juan Luis Munoz Marin Intl
Jan 20
SJU2:05 amSan Juan Luis Munoz Marin Intl
14h 30m
2 stops
MSO1:35 pmMissoula Johnson-Bell Field
$725
Find similar
United Airlines
Jan 8
MSO6:00 amMissoula Johnson-Bell Field
12h 00m
2 stops
SJU9:00 pmSan Juan Luis Munoz Marin Intl
Jan 20
SJU2:05 amSan Juan Luis Munoz Marin Intl
22h 46m
3 stops
MSO9:51 pmMissoula Johnson-Bell Field
$765
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Missoula to Puerto Rico that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated septiembre 15, 2025.
Use the filters below to find and compare flights from Missoula to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

lun. 12/8

6:16 pm-12:44 pm

2 stops15h 28m

San Juan Luis Munoz Marin Intl

jue. 12/11

3:20 pm-12:35 am

2 stops12h 15m

$531

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

lun. 12/8

6:16 pm-12:44 pm

2 stops15h 28m

San Juan Luis Munoz Marin Intl

jue. 12/11

7:00 am-12:35 am

2 stops20h 35m

$560

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

jue. 1/8

7:00 am-10:14 pm

1 stop12h 14m

San Juan Luis Munoz Marin Intl

mié. 1/21

6:45 am-9:41 pm

1 stop17h 56m

$570

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

jue. 1/8

7:00 am-10:14 pm

1 stop12h 14m

San Juan Luis Munoz Marin Intl

mié. 1/21

6:45 am-9:41 pm

1 stop17h 56m

$598

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

lun. 12/8

7:00 am-11:59 am

2 stops25h 59m

San Juan Luis Munoz Marin Intl

jue. 12/11

7:00 am-8:33 pm

1 stop16h 33m

$641

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

lun. 12/8

6:15 am-6:25 pm

1 stop9h 10m

San Juan Luis Munoz Marin Intl

jue. 12/11

2:25 pm-9:18 pm

1 stop9h 53m

$688

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

jue. 1/8

6:00 am-6:25 pm

1 stop9h 25m

San Juan Luis Munoz Marin Intl

mar. 1/20

2:05 am-1:35 pm

2 stops14h 30m

$725

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

jue. 1/8

6:00 am-9:00 pm

2 stops12h 00m

San Juan Luis Munoz Marin Intl

mar. 1/20

2:05 am-9:51 pm

3 stops22h 46m

$765

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

jue. 1/8

6:30 pm-10:14 pm

3 stops24h 44m

San Juan Luis Munoz Marin Intl

mié. 1/21

7:20 am-11:57 pm

2 stops19h 37m

$987

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

jue. 2/19

6:35 am-4:55 am

3 stops19h 20m

San Juan Luis Munoz Marin Intl

dom. 3/1

7:20 am-11:59 pm

2 stops19h 39m

$1,622

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Puerto Rico from

How to get the cheapest flight ticket from Missoula to Puerto Rico

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Puerto Rico?

On average, the least expensive day to fly to Puerto Rico from Missoula is on a Saturday. momondo users have found tickets for Saturday departures for as low as $661. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Puerto Rico is Sunday, with ticket prices averaging around $897.

What is the cheapest time of day to depart on your flight to Puerto Rico?

Our most recent data shows that the best time of day to fly to Puerto Rico is at noon. Flights from Missoula to Puerto Rico during this time can be as low as $651. In contrast, the most expensive time of day to depart to Puerto Rico is in the afternoon when prices are around $769.

Cheap Missoula to Puerto Rico flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missoula to Puerto Rico

Direct flights

None
There are no direct flights from Missoula to Puerto Rico. There are no popular flight routes from Missoula to Puerto Rico.
Search flight deals

  • When did momondo last update prices for flights from Missoula Johnson-Bell Field Airport to Puerto Rico?

    Prices for flights from Missoula Johnson-Bell Field Airport to Puerto Rico refresh daily.

  • How many operators does momondo search for flights from Missoula Johnson-Bell Field Airport to Puerto Rico?

  • How old do you have to be to fly from Missoula Johnson-Bell Field Airport to Puerto Rico?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Missoula Johnson-Bell Field Airport to Puerto Rico.

  • What documentation or ID do you need to fly to Puerto Rico?

    The necessary travel and health documents for your Puerto Rico trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Missoula to Puerto Rico

Compare and see reviews for airlines that fly from Missoula to Puerto Rico with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $627Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Missoula to Puerto Rico?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Missoula to Puerto Rico for you.

Can I find flights from Missoula to Puerto Rico with flexible booking policies on momondo?

momondo does allow users to show only those flights to Puerto Rico from Missoula which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Missoula to Puerto Rico?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Puerto Rico from Missoula.

I’m not ready to book a flight from Missoula to Puerto Rico right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Missoula to Puerto Rico flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to Puerto Rico

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