HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Juan

$609+ Cheap flights from Billings (BIL) to San Juan

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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SJU
Sep 2 — Sep 91
Wed 9/2
Wed 9/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Billings to San Juan 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 Billings to San Juan

Cheapest flights from Billings to San Juan
Explore the most affordable flight options available from Billings to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 3, 2026.

This United Airlines deal was found by Cheapflights users on 8/1. 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 12/125:51 pm
BIL
-
SJU
2 stops16h 24m
United Airlines
Thu 12/172:21 pm
SJU
-
BIL
1 stop9h 58m
United Airlines
Deal found 8/1$609
This American Airlines deal was found by Cheapflights users on 7/30. 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 9/101:13 pm
BIL
-
SJU
2 stops18h 11m
American Airlines
Fri 9/186:00 am
SJU
-
BIL
2 stops18h 10m
American Airlines
Deal found 7/30$616
This American Airlines deal was found by Cheapflights users on 7/30. 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 9/91:13 pm
BIL
-
SJU
2 stops18h 11m
American Airlines
Sat 9/194:38 pm
SJU
-
BIL
2 stops22h 05m
American Airlines
Deal found 7/30$621
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/102:29 pm
BIL
-
SJU
2 stops22h 15m
United Airlines
Fri 9/183:56 pm
SJU
-
BIL
2 stops19h 43m
United Airlines
Deal found 8/3$673
This United Airlines deal was found by Cheapflights users on 7/30. 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 9/97:00 am
BIL
-
SJU
2 stops14h 50m
United Airlines
Sat 9/192:00 pm
SJU
-
BIL
1 stop10h 53m
United Airlines
Deal found 7/30$676

Find flight deals from Billings to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 3, 2026.

Round-trip from

$609
(United Airlines)
From Billings Logan Intl to San Juan
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Billings to San Juan 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 3, 2026.
Use the filters below to find and compare flights from Billings to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Sat 12/12

5:51 pm-11:50 am

2 stops14h 59m

San Juan Luis Munoz Marin Intl

Thu 12/17

2:21 pm-9:19 pm

1 stop9h 58m

$612

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Thu 9/10

1:13 pm-9:24 am

2 stops18h 11m

San Juan Luis Munoz Marin Intl

Fri 9/18

6:00 am-10:10 pm

2 stops18h 10m

$616

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Wed 9/9

7:00 am-11:50 pm

2 stops14h 50m

San Juan Luis Munoz Marin Intl

Fri 9/18

1:00 am-11:02 am

2 stops12h 02m

$676

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Thu 9/10

4:07 pm-2:44 pm

2 stops20h 37m

San Juan Luis Munoz Marin Intl

Fri 9/18

3:56 pm-11:02 am

1 stop21h 06m

$689

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Sorted by cheapest first

Best time to book a flight from Billings to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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 San Juan

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated August 3, 2026.
See what other customers who have flown with United Airlines from Billings to San Juan have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,058 reviews

Overall

7.4

Food

6.7

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
United Airlines
7.4
Good
10,058 reviews
United Airlines
7.4
Good
10,058 reviews

Overall

7.4

Food

6.7

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

Related info for your journey

Find useful and relevant information for your journey from Billings to San Juan. 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 San Juan?

    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 San Juan. 1 airline have flights from Billings Logan Intl to San Juan on a regular basis. Booking flights from Billings Logan Intl to San Juan should not be difficult; the airport handles an average of 0 outbound flights to San Juan per day.

  • How long is the flight from Billings to San Juan?

    Departing from Billings to San Juan will take you 14h 59m. Billings and San Juan are separated by a distance of 3068 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Billings to San Juan round-trip?

    Our cheapest airline available from Billings to San Juan is United Airlines. Our recent data shows that you can find tickets from as low as $495 on this airline.

  • Can I find deals for flights from Billings to San Juan that include hotel bookings?

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

  • How can I find direct flights from Billings to San Juan?

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

  • Can I find deals for business class flights from Billings to San Juan?

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

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Billings to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Luis Munoz Marin Intl flights

Top airline flying from Billings to San Juan

Discover the top airline that operate flights from Billings to San Juan. 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 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$495Average$635FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights