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San Juan

$423+ Cheap flights from Billings (BIL) to San Juan

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SJU
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap 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 March 28, 2025.

Round-trip from

$505
(American Airlines)

One-way from

$423
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$898
From Billings Logan Intl to San Juan
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One-way flight from Billings Logan Intl to San Juan
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Highest demand for flights based on searches. 1% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find 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 March 28, 2025.

This American Airlines deal was found by Cheapflights users on 3/27. 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 4/262:02 pmBIL - SJU
2 stops18h 58mAmerican Airlines
Wed 4/306:05 amSJU - BIL
1 stop17h 23mAmerican Airlines
Deal found 3/27$505
This United Airlines deal was found by Cheapflights users on 3/27. 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 9/15:51 pmBIL - SJU
2 stops16h 09mUnited Airlines
Mon 9/291:05 amSJU - BIL
2 stops12h 16mUnited Airlines
Deal found 3/27$585
This Delta deal was found by Cheapflights users on 3/27. 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.
Sun 7/136:25 amBIL - SJU
2 stops13h 47mDelta
Tue 7/222:15 pmSJU - BIL
2 stops10h 23mDelta
Deal found 3/27$1,095
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/267:45 amBIL - SJU
3 stops19h 15mAlaska Airlines
Wed 4/302:35 pmSJU - BIL
3 stops35h 24mAlaska Airlines
Deal found 3/27$2,583

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 March 28, 2025.
Use the filters below to find and compare flights from Billings to San Juan that are best for you.

Fly from

Billings

Fly to

San Juan

Route

Depart

Return

Price

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Sat 4/26

2:02 pm-11:00 am

2 stops18h 58m

San Juan Luis Munoz Marin Intl

Wed 4/30

6:05 am-9:28 pm

1 stop17h 23m

$505

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Mon 9/1

5:51 pm-12:00 pm

2 stops16h 09m

San Juan Luis Munoz Marin Intl

Mon 9/29

1:05 am-11:21 am

2 stops12h 16m

$585

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Sun 7/13

6:25 am-10:12 pm

2 stops13h 47m

San Juan Luis Munoz Marin Intl

Tue 7/22

2:15 pm-10:38 pm

2 stops10h 23m

$1,095

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Sat 4/26

7:45 am-5:00 am

3 stops19h 15m

San Juan Luis Munoz Marin Intl

Wed 4/30

2:35 pm-11:59 pm

3 stops35h 24m

$2,583

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Sat 4/5

5:00 am-9:24 pm

2 stops14h 24m

$423

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

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

What is the cheapest month to book a flight from Billings to San Juan?

Currently, September is the cheapest month in which you can book a flight from Billings to San Juan (average of $254). Flying from Billings to San Juan in December is currently the most expensive (average of $336). 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.

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

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 March 28, 2025.
Alaska Airlines
8.0
Very good
9,798 reviews

Entertainment

7.1

Comfort

7.9

Boarding

8.2

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,798 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Entertainment

7.1

Comfort

7.9

Boarding

8.2

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,896 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Entertainment

7.1

Comfort

7.9

Boarding

8.2

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,603 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Entertainment

7.1

Comfort

7.9

Boarding

8.2

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Entertainment

7.1

Comfort

7.9

Boarding

8.2

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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. 2 airlines 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.

  • What are the cheapest airlines flying from Billings to San Juan round-trip?

    Our cheapest airline available from Billings to San Juan is American Airlines. Our recent data shows that you can find tickets from as low as $505 on this airline. Additional options worth looking into are United Airlines and Delta, starting at $585 and $1,095 round-trip. These flights start at 31% lower than the current average price 3 months from now.

  • 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.

  • What is the cheapest month to book a flight from Billings to San Juan?

    Currently, September is the cheapest month in which you can book a flight from Billings to San Juan (average of $254). Flying from Billings to San Juan in December is currently the most expensive (average of $336). 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 San Juan

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

Top 2 airlines flying from Billings to San Juan

Discover the top 2 airlines 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$484Average$669FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$494Average$804FlexibilityNo cancel feeOn-time69%
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