$232+ Cheap flights from Montana to Puerto Rico
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SJU
Oct 14 — Oct 211
Round-trip
1 adult, Economy
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Find cheap flights from Montana to Puerto Rico with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Montana to Puerto Rico
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Last-minute
One-way
Cheapest flights from Montana to Puerto RicoExplore the most affordable flight options available from Montana to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.
Explore the most affordable flight options available from Montana to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/303:34 pm -
2 stops20h 15m
Tue 11/107:00 am -
1 stop9h 20m
Deal found 9/9![Delta logo]()
$444
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:30 am -
1 stop9h 08m
Sat 10/102:00 pm -
1 stop9h 04m
Deal found 9/11![United Airlines logo]()
$484
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:05 am -
2 stops14h 05m
Sat 10/2410:30 am -
2 stops13h 15m
Deal found 9/9![Southwest logo]()
$516
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:30 am -
1 stop9h 08m
Fri 10/231:00 am -
2 stops16h 28m
Deal found 9/9![United Airlines logo]()
$517
This United Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:30 am -
1 stop9h 08m
Wed 10/281:21 pm -
1 stop10h 09m
Deal found 9/12![United Airlines logo]()
$521
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:30 am -
1 stop9h 08m
Fri 10/91:00 am -
1 stop11h 05m
Deal found 9/10![United Airlines logo]()
$525
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:30 am -
1 stop9h 08m
Tue 10/276:40 am -
2 stops16h 50m
Deal found 9/9![United Airlines logo]()
$534
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:30 am -
1 stop9h 08m
Thu 10/221:00 am -
1 stop11h 25m
Deal found 9/13![United Airlines logo]()
$552
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:00 am -
1 stop8h 38m
Wed 10/142:00 pm -
1 stop9h 10m
Deal found 9/9![United Airlines logo]()
$566
This American Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:50 am -
2 stops23h 52m
Sun 12/136:38 pm -
2 stops20h 58m
Deal found 9/12![American Airlines logo]()
$608
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:00 am -
1 stop14h 16m
Thu 11/127:30 am -
2 stops16h 10m
Deal found 9/14![American Airlines logo]()
$608
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:34 am -
2 stops14h 20m
Sat 11/147:00 am -
2 stops15h 37m
Deal found 9/14![Delta logo]()
$633
Best flights from Montana to Puerto RicoDiscover carefully curated flight deals from Montana to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.
Discover carefully curated flight deals from Montana to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:00 am -
2 stops14h 18m
Tue 11/107:00 am -
1 stop9h 20m
Deal found 9/13![Delta logo]()
$464
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:30 am -
1 stop9h 08m
Fri 10/91:00 am -
2 stops16h 28m
Deal found 9/11![United Airlines logo]()
$504
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:05 am -
2 stops14h 05m
Sat 10/2410:30 am -
2 stops13h 15m
Deal found 9/9![Southwest logo]()
$516
This American Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:50 am -
1 stop14h 26m
Sun 12/136:28 am -
1 stop16h 47m
Deal found 9/12![American Airlines logo]()
$782
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:30 am -
1 stop9h 08m
Tue 10/271:21 pm -
1 stop10h 09m
Deal found 9/9![United Airlines logo]()
$534
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/253:40 pm -
2 stops18h 25m
Mon 2/13:20 pm -
1 stop11h 38m
Deal found 9/11![Delta logo]()
$570
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:30 am -
1 stop9h 08m
Thu 10/221:00 am -
1 stop11h 25m
Deal found 9/13![United Airlines logo]()
$552
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:15 am -
1 stop9h 10m
Thu 11/122:21 pm -
1 stop10h 26m
Deal found 9/9![United Airlines logo]()
$678
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/95:55 pm -
2 stops18h 45m
Thu 11/128:25 am -
2 stops17h 05m
Deal found 9/10![United Airlines logo]()
$683
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:14 am -
1 stop9h 11m
Thu 10/294:50 pm -
3 stops22h 44m
Deal found 9/9![United Airlines logo]()
$724
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:00 am -
2 stops13h 38m
Wed 10/147:00 am -
2 stops12h 16m
Deal found 9/9![United Airlines logo]()
$743
Last-minute flights from Montana to Puerto RicoDiscover last-minute flight deals from Montana to Puerto Rico. Data last updated September 14, 2026 and is based on user searches.
Discover last-minute flight deals from Montana to Puerto Rico. Data last updated September 14, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:30 am -
1 stop9h 08m
Sat 10/102:00 pm -
1 stop9h 04m
Deal found 9/11![United Airlines logo]()
$484
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:30 am -
1 stop9h 08m
Fri 10/91:00 am -
1 stop11h 05m
Deal found 9/10![United Airlines logo]()
$525
This American Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/51:21 pm -
2 stops22h 16m
Mon 10/126:30 am -
2 stops16h 42m
Deal found 9/13![American Airlines logo]()
$739
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:00 am -
1 stop8h 38m
Wed 10/142:00 pm -
1 stop9h 10m
Deal found 9/9![United Airlines logo]()
$566
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/71:21 pm -
2 stops18h 25m
Wed 10/146:20 am -
2 stops16h 52m
Deal found 9/9![American Airlines logo]()
$749
This United Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:30 am -
1 stop9h 08m
Wed 10/286:40 am -
2 stops16h 50m
Deal found 9/12![United Airlines logo]()
$521
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:05 am -
2 stops14h 05m
Sat 10/2410:30 am -
2 stops13h 15m
Deal found 9/9![Southwest logo]()
$516
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:30 am -
1 stop9h 08m
Fri 10/231:00 am -
2 stops16h 28m
Deal found 9/9![United Airlines logo]()
$517
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:30 am -
1 stop9h 08m
Thu 10/221:00 am -
1 stop11h 25m
Deal found 9/13![United Airlines logo]()
$552
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:30 am -
1 stop9h 08m
Tue 10/276:40 am -
2 stops16h 50m
Deal found 9/9![United Airlines logo]()
$534
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:14 am -
1 stop9h 11m
Thu 10/294:50 pm -
3 stops22h 44m
Deal found 9/9![United Airlines logo]()
$724
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/303:34 pm -
2 stops20h 15m
Tue 11/107:00 am -
1 stop9h 20m
Deal found 9/9![Delta logo]()
$444
One-way flights from Montana to Puerto RicoSearch for one-way flight options from Montana to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.
Search for one-way flight options from Montana to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.
This Southwest deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/278:40 am -
2 stops10h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Southwest logo]()
$232
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:30 am -
1 stop9h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$247
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:30 am -
1 stop9h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![United Airlines logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/279:42 pm -
2 stops37h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$263
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/315:24 pm -
1 stop8h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![United Airlines logo]()
$304
This Southwest deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/211:05 am -
2 stops12h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Southwest logo]()
$304
This American Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/36:42 am -
1 stop13h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![American Airlines logo]()
$309
This American Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/311:42 pm -
2 stops21h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![American Airlines logo]()
$310
This Southwest deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/109:40 am -
2 stops12h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Southwest logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/249:42 pm -
2 stops33h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:00 am -
2 stops15h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$331
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/286:15 am -
1 stop9h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![United Airlines logo]()
$349
Find flight deals from Montana to Puerto Rico
Keep the following information in mind while searching for Montana to Puerto Rico flight deals. Data was last updated September 14, 2026.
Round-trip from | $444 (Delta) |
|---|---|
One-way from | $232 (Southwest) |
Popular in | May |
Cheapest in | October |
Average price | $443 |
Cheapflights 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, Cheapflights users made 7,457,451 searches. Data last updated September 14, 2026.
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
Cheapest round-trip
BozemanSan Juan
BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl
BZNSJU
Bozeman Gallatin Field
Mon 2/1
8:40 am-10:00 pm
2 stops10h 20m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$232
BozemanSan Juan
BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl
BZNSJU
Bozeman Gallatin Field
Sat 1/30
2:37 pm-6:15 am
2 stops12h 38m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$232
BozemanSan Juan
BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl
BZNSJU
Bozeman Gallatin Field
Wed 2/3
8:40 am-10:00 pm
2 stops10h 20m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$232
BozemanSan Juan
BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl
BZNSJU
Bozeman Gallatin Field
Fri 10/2
6:30 am-5:38 pm
1 stop9h 08m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$252
BozemanSan Juan
BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl
BZNSJU
Bozeman Gallatin Field
Sat 10/3
8:00 am-11:50 pm
2 stops13h 50m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$254
Quickest round-trip
MissoulaSan Juan
MSO Missoula Johnson-Bell Field - SJU San Juan Luis Munoz Marin Intl
MSOSJU
Missoula Johnson-Bell Field
Thu 12/31
5:24 pm-5:21 am
1 stop8h 57m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$304
MissoulaSan Juan
MSO Missoula Johnson-Bell Field - SJU San Juan Luis Munoz Marin Intl
MSOSJU
Missoula Johnson-Bell Field
Thu 12/31
1:42 pm-2:00 pm
2 stops21h 18m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$310
BozemanSan Juan
BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl
BZNSJU
Bozeman Gallatin Field
Sat 10/10
9:40 am-11:55 pm
2 stops12h 15m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$317
BozemanSan Juan
BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl
BZNSJU
Bozeman Gallatin Field
Tue 9/22
6:00 am-11:49 pm
2 stops15h 49m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$331
BozemanSan Juan
BZN Bozeman Gallatin Field - SJU San Juan Luis Munoz Marin Intl
BZNSJU
Bozeman Gallatin Field
Wed 9/23
3:25 pm-9:10 am
2 stops15h 45m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$341
Showing 1-10 of 29 resultsSorted by cheapest first
Best time to book a flight from Montana to Puerto Rico
Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Montana with our price prediction graph.
BZN-SJU
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Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Montana to Puerto Rico
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BZN-SJU
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What is the cheapest month to book a flight from Montana to Puerto Rico?
Currently, February is the cheapest month in which you can book a flight from Montana to Puerto Rico (average of $559). Flying from Montana to Puerto Rico in June is currently the most expensive (average of $1,291). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Related info for your journey
Find useful and relevant information for your journey from Montana to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Montana to Puerto Rico
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Puerto Rico by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Montana to Puerto Rico by cabin class
Find flights from Montana to Puerto Rico, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Montana and Puerto Rico flights
Browse other Montana and Puerto Rico flight options. Last updated on September 14, 2026.
Popular flight searches
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Montana to Puerto Rico flights
Consider these flights traveling from Montana to Puerto Rico.
Top 2 airlines flying from Montana to Puerto Rico
Discover the top 2 airlines that operate flights from Montana to Puerto Rico. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$386 | Average$652 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$443 | Average$572 | FlexibilityNo cancel fee | On-time63% |