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$511+ Cheap flights from Billings (BIL) 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SJU
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Billings to Puerto Rico

Keep the following information in mind while searching for Billings to Puerto Rico flight deals. Data was last updated August 14, 2025.

Round-trip from

$511
(American Airlines)

Popular in

December

Cheapest in

September
From Billings Logan Intl to Puerto Rico
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals

Find flight deals from Billings to Puerto Rico

Cheapest flights from Billings to Puerto Rico
Explore the most affordable flight options available from Billings to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/14. 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.
Tue 9/306:02 amBIL - SJU
2 stops10h 12mAmerican Airlines
Thu 10/97:00 pmSJU - BIL
2 stops20h 23mAmerican Airlines
Deal found 8/14$511
This United Airlines deal was found by Cheapflights users on 8/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:00 amBIL - SJU
2 stops14h 57mUnited Airlines
Wed 10/81:05 amSJU - BIL
2 stops14h 13mUnited Airlines
Deal found 8/14$578
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Sat 10/47:00 amBIL - SJU
2 stops14h 57mUnited Airlines
Wed 10/82:00 pmSJU - BIL
1 stop10h 46mUnited Airlines
Deal found 8/13$593
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Sat 12/62:04 pmBIL - SJU
2 stops19h 01mAmerican Airlines
Mon 12/156:20 pmSJU - BIL
2 stops20h 35mAmerican Airlines
Deal found 8/12$608
This American Airlines deal was found by Cheapflights users on 8/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/47:03 amBIL - SJU
2 stops27h 44mAmerican Airlines
Wed 10/87:00 amSJU - BIL
2 stops16h 53mAmerican Airlines
Deal found 8/11$621
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Sat 9/62:35 pmBIL - SJU
2 stops23h 07mUnited Airlines
Fri 9/121:05 amSJU - BIL
2 stops14h 12mUnited Airlines
Deal found 8/13$687

Cheapflights Fare Finder

 
Customize your flight search to find flights from Billings 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 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Billings to Puerto Rico that are best for you.

Fly from

Billings

Fly to

Puerto Rico

Route

Depart

Return

Price

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Tue 9/30

6:02 am-6:14 pm

2 stops10h 12m

San Juan Luis Munoz Marin Intl

Thu 10/9

7:00 pm-1:23 pm

2 stops20h 23m

$511

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Sat 9/6

12:19 pm-11:11 am

2 stops20h 52m

San Juan Luis Munoz Marin Intl

Sat 9/13

6:10 am-10:39 pm

2 stops18h 29m

$511

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Tue 9/30

7:00 am-11:57 pm

2 stops14h 57m

San Juan Luis Munoz Marin Intl

Wed 10/8

1:05 am-1:18 pm

2 stops14h 13m

$578

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Sat 10/4

7:00 am-11:57 pm

2 stops14h 57m

San Juan Luis Munoz Marin Intl

Wed 10/8

2:00 pm-8:49 pm

1 stop8h 49m

$593

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Best time to book a flight from Billings to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Billings with our price prediction graph.
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 Billings to Puerto Rico
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Puerto Rico. Reviews last updated August 14, 2025.
Read reviews from past customers who have flown United Airlines from Billings to Puerto Rico. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,916 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Billings to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Billings to Puerto Rico?

    Billings Logan Intl (BIL), located 2.7 mi from the city center, is the airport you fly out of when you book flights from Billings to Puerto Rico.

  • Can I find deals for flights from Billings to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Billings to Puerto Rico flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Billings to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Billings to Puerto Rico.

  • Can I find deals for business class flights from Billings to Puerto Rico?

    Yes. Cheapflights offers flight deals from Billings to Puerto Rico by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Billings to Puerto Rico?

    Currently, September is the cheapest month in which you can book a flight from Billings to Puerto Rico (average of $254). Flying from Billings to Puerto Rico in June is currently the most expensive (average of $339). 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.

See more FAQs

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Alternative routes for Billings to Puerto Rico

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Top airline flying from Billings to Puerto Rico

Discover the top airline that operate flights from Billings 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 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$494Average$807FlexibilityNo cancel feeOn-time69%

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