Cheap flights from Montana to Puerto Rico from $256

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to Puerto Rico departing on 10/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

American Airlines Logo
1:05 pm - 11:45 amMSO-SJU
19h 40m2 stops
American Airlines Logo
6:50 pm - 12:25 pmSJU-MSO
20h 35m2 stops
$511American Airlines
Find Deal
jue., ene. 8 - mié., ene. 21
American Airlines Logo
4:19 pm - 2:15 pmBZN-SJU
19h 56m1 stop
American Airlines Logo
7:05 pm - 3:12 pmSJU-BZN
22h 07m2 stops
$511American Airlines
Find Deal
vie., sep. 19 - dom., sep. 21
 Logo
11:29 am - 2:11 pmBZN-SJU
24h 42m3 stops
 Logo
3:19 pm - 12:39 pmSJU-BZN
23h 20m2 stops
vie., sep. 19 - dom., sep. 21
 Logo
11:29 am - 8:56 pmBZN-SJU
31h 27m3 stops
 Logo
3:19 pm - 12:39 pmSJU-BZN
23h 20m3 stops
vie., sep. 19 - dom., sep. 21
United Airlines Logo
6:25 am - 6:25 pmMSO-SJU
9h 00m1 stop
United Airlines Logo
2:25 pm - 9:47 pmSJU-MSO
10h 22m1 stop
$548United Airlines
Find Deal
jue., nov. 20 - mar., nov. 25
United Airlines Logo
6:25 am - 6:25 pmMSO-SJU
9h 00m1 stop
United Airlines Logo
8:30 am - 9:47 pmSJU-MSO
16h 17m2 stops
$579United Airlines
Find Deal
jue., nov. 20 - mar., nov. 25
Delta Logo
8:00 am - 11:50 pmMSO-SJU
12h 50m2 stops
Delta Logo
7:30 am - 12:32 amSJU-MSO
20h 02m2 stops
$655Delta
Find Deal
jue., nov. 20 - mar., nov. 25
Delta Logo
8:00 am - 11:50 pmMSO-SJU
12h 50m2 stops
Delta Logo
7:30 am - 8:12 pmSJU-MSO
15h 42m2 stops
$705Delta
Find Deal
lun., dic. 8 - jue., dic. 11
Alaska Airlines Logo
4:09 pm - 9:55 pmFCA-SJU
26h 46m3 stops
Alaska Airlines Logo
7:20 am - 11:59 pmSJU-FCA
19h 39m2 stops
$875Alaska Airlines
Find Deal
mié., ene. 28 - mar., feb. 3
Alaska Airlines Logo
7:34 pm - 2:20 pmBZN-SJU
16h 46m2 stops
Alaska Airlines Logo
3:10 pm - 6:40 pmSJU-BZN
29h 30m3 stops
$912Alaska Airlines
Find Deal
jue., oct. 16 - lun., oct. 20

American Airlines flights from Montana to Puerto Rico

Our best American Airlines deals on Montana to Puerto Rico flight tickets
American Airlines
Sep 19
BZN4:19 pmBozeman Gallatin Field
19h 56m
1 stop
SJU2:15 pmSan Juan Luis Munoz Marin Intl
Sep 21
SJU7:05 pmSan Juan Luis Munoz Marin Intl
22h 07m
2 stops
BZN3:12 pmBozeman Gallatin Field
American Airlines
Sep 26
FCA3:49 pmKalispell Glacier Park
19h 01m
2 stops
SJU12:50 pmSan Juan Luis Munoz Marin Intl
Sep 30
SJU3:55 pmSan Juan Luis Munoz Marin Intl
24h 28m
2 stops
FCA2:23 pmKalispell Glacier Park
American Airlines
Jan 8
MSO1:05 pmMissoula Johnson-Bell Field
21h 25m
2 stops
SJU1:30 pmSan Juan Luis Munoz Marin Intl
Jan 21
SJU6:50 pmSan Juan Luis Munoz Marin Intl
20h 35m
2 stops
MSO12:25 pmMissoula Johnson-Bell Field

United Airlines flights from Montana to Puerto Rico

Our best United Airlines deals on Montana to Puerto Rico flight tickets
United Airlines
Nov 20
MSO6:25 amMissoula Johnson-Bell Field
9h 00m
1 stop
SJU6:25 pmSan Juan Luis Munoz Marin Intl
Nov 25
SJU2:25 pmSan Juan Luis Munoz Marin Intl
10h 22m
1 stop
MSO9:47 pmMissoula Johnson-Bell Field
United Airlines
Nov 20
MSO6:25 amMissoula Johnson-Bell Field
9h 00m
1 stop
SJU6:25 pmSan Juan Luis Munoz Marin Intl
Nov 25
SJU8:30 amSan Juan Luis Munoz Marin Intl
16h 17m
2 stops
MSO9:47 pmMissoula Johnson-Bell Field
United Airlines
Sep 26
FCA6:30 amKalispell Glacier Park
9h 00m
1 stop
SJU5:30 pmSan Juan Luis Munoz Marin Intl
Sep 30
SJU2:00 pmSan Juan Luis Munoz Marin Intl
9h 31m
1 stop
FCA9:31 pmKalispell Glacier Park

momondo Fare Finder

 
Customize your flight search to find flights from Montana 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 agosto 6, 2025.
Use the filters below to find and compare flights from Montana 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

jue. 1/8

1:05 pm-11:45 am

2 stops19h 40m

San Juan Luis Munoz Marin Intl

mié. 1/21

6:50 pm-12:25 pm

2 stops20h 35m

$511

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

vie. 9/19

4:19 pm-2:15 pm

1 stop19h 56m

San Juan Luis Munoz Marin Intl

dom. 9/21

7:05 pm-3:12 pm

2 stops22h 07m

$511

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

vie. 9/19

11:29 am-2:11 pm

3 stops24h 42m

San Juan Luis Munoz Marin Intl

dom. 9/21

3:19 pm-12:39 pm

2 stops23h 20m

$527

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

vie. 9/19

11:29 am-8:56 pm

3 stops31h 27m

San Juan Luis Munoz Marin Intl

dom. 9/21

3:19 pm-12:39 pm

3 stops23h 20m

$534

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

jue. 11/20

6:25 am-6:25 pm

1 stop9h 00m

San Juan Luis Munoz Marin Intl

mar. 11/25

2:25 pm-9:47 pm

1 stop10h 22m

$548

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

jue. 11/20

6:25 am-6:25 pm

1 stop9h 00m

San Juan Luis Munoz Marin Intl

mar. 11/25

8:30 am-9:47 pm

2 stops16h 17m

$579

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

jue. 11/20

8:00 am-11:50 pm

2 stops12h 50m

San Juan Luis Munoz Marin Intl

mar. 11/25

7:30 am-12:32 am

2 stops20h 02m

$655

MissoulaSan Juan

MSO - SJU

MSOSJU

Missoula Johnson-Bell Field

lun. 12/8

8:00 am-11:50 pm

2 stops12h 50m

San Juan Luis Munoz Marin Intl

jue. 12/11

7:30 am-8:12 pm

2 stops15h 42m

$705

KalispellSan Juan

FCA - SJU

FCASJU

Kalispell Glacier Park

mié. 1/28

4:09 pm-9:55 pm

3 stops26h 46m

San Juan Luis Munoz Marin Intl

mar. 2/3

7:20 am-11:59 pm

2 stops19h 39m

$875

BozemanSan Juan

BZN - SJU

BZNSJU

Bozeman Gallatin Field

jue. 10/16

7:34 pm-2:20 pm

2 stops16h 46m

San Juan Luis Munoz Marin Intl

lun. 10/20

3:10 pm-6:40 pm

3 stops29h 30m

$912

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Puerto Rico from

How to get the cheapest flight ticket from Montana 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 Montana is on a Sunday. momondo users have found tickets for Sunday departures for as low as $382. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Puerto Rico is Friday, with ticket prices averaging around $761.

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 Montana to Puerto Rico during this time can be as low as $487. In contrast, the most expensive time of day to depart to Puerto Rico is in the morning when prices are around $604.

Can stopping save me money on Montana to Puerto Rico flights?

You could potentially save up to 40% on your flight if you consider stops on a Montana to Puerto Rico flight.

Cheap Montana to Puerto Rico flight deals and tips

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

Best Price Found

$256

Fastest flight time

8h 50m

Direct flights

None

Airports in Puerto Rico

1 airport
The best one-way flight to Puerto Rico from Montana in the past 72 hours is $256. The best round-trip flight deal from Montana to Puerto Rico found on momondo in the last 72 hours is $511.
The fastest flight from Montana to Puerto Rico takes 8h 50m
There are no direct flights from Montana to Puerto Rico. Popular non-direct routes for this connection are Bozeman Gallatin Field Airport - San Juan Luis Munoz Marin Intl Airport, Missoula Johnson-Bell Field Airport - San Juan Luis Munoz Marin Intl Airport and Billings Logan Intl Airport - San Juan Luis Munoz Marin Intl Airport.
There is 1 airport near Puerto Rico: San Juan Luis Munoz Marin Intl (SJU)
  • When did momondo last update prices for flights from Montana to Puerto Rico?

    Prices for flights from Montana to Puerto Rico were last updated today.

  • How many operators does momondo search for flights from Montana to Puerto Rico?

  • How old do you have to be to fly from Montana 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 Montana to Puerto Rico.

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

    The travel and health documents you'll need for your trip to Puerto Rico may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Puerto Rico. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Montana to Puerto Rico

Compare and see reviews for airlines that fly from Montana to Puerto Rico with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $235Free CancellationRating
7.2
2,915 reviews
Search JetBlue flights
United AirlinesPriceFrom $352Free CancellationRating
7.4
8,917 reviews
Search United Airlines flights
DeltaPriceFrom $374Free CancellationRating
8.0
7,985 reviews
Search Delta flights
SouthwestPriceFrom $479Free CancellationRating
8.0
4,244 reviews
Search Southwest flights
American AirlinesPriceFrom $484Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Why use momondo?

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

Finding the right flight to Puerto Rico from Montana is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Puerto Rico quick and easy, saving you time and money.

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

Flights from Montana to Puerto Rico with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Montana to Puerto Rico flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Puerto Rico, momondo offers a useful price alert feature which will track prices for flights to Puerto Rico from Montana and alert you when they change.

An easier way to manage your Puerto Rico trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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1 adult
lun. 8/11
lun. 8/18

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