$388 Find Cheap Flights from Billings to Puerto Rico

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Billings to Puerto Rico departing on 1/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap Billings to Puerto Rico Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Billings to Puerto Rico that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Billings to Puerto Rico

Fri, Dec 12 - Fri, Dec 19
Multiple Airlines Logo
10:02 am - 12:32 pmBIL-SJU
23h 30m2 stops
Multiple Airlines Logo
6:28 pm - 4:38 pmSJU-BIL
25h 10m3 stops
$494Multiple Airlines
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Wed, Jan 7 - Wed, Jan 14
United Airlines Logo
6:30 am - 12:36 amBIL-SJU
15h 06m2 stops
United Airlines Logo
8:10 am - 9:23 pmSJU-BIL
16h 13m2 stops
$495United Airlines
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Fri, Dec 12 - Fri, Dec 19
Multiple Airlines Logo
10:02 am - 11:25 pmBIL-SJU
34h 23m3 stops
Multiple Airlines Logo
12:53 pm - 4:38 pmSJU-BIL
30h 45m3 stops
$509Multiple Airlines
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Sat, Dec 6 - Mon, Dec 15
American Airlines Logo
1:58 pm - 11:59 amBIL-SJU
19h 01m2 stops
American Airlines Logo
7:00 am - 9:18 pmSJU-BIL
17h 18m1 stop
$531American Airlines
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Sat, Feb 7 - Sat, Feb 14
American Airlines Logo
2:15 pm - 12:27 pmBIL-SJU
19h 12m2 stops
American Airlines Logo
7:30 am - 9:35 pmSJU-BIL
17h 05m1 stop
$570American Airlines
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Wed, Jan 7 - Wed, Jan 14
United Airlines Logo
6:30 am - 12:36 amBIL-SJU
15h 06m2 stops
United Airlines Logo
2:25 pm - 9:23 pmSJU-BIL
9h 58m1 stop
$572United Airlines
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Thu, Dec 4 - Mon, Dec 8
American Airlines Logo
1:58 pm - 1:30 pmBIL-SJU
20h 32m2 stops
American Airlines Logo
6:42 pm - 1:28 pmSJU-BIL
21h 46m2 stops
$608American Airlines
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Mon, Dec 8 - Thu, Dec 11
United Airlines Logo
7:00 am - 10:22 pmBIL-SJU
12h 22m2 stops
United Airlines Logo
8:10 am - 9:21 pmSJU-BIL
16h 11m2 stops
$621United Airlines
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Mon, Dec 8 - Thu, Dec 11
American Airlines Logo
1:58 pm - 10:09 amBIL-SJU
17h 11m2 stops
American Airlines Logo
11:00 am - 9:15 pmSJU-BIL
13h 15m2 stops
$641American Airlines
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Sat, Dec 6 - Mon, Dec 15
American Airlines Logo
1:58 pm - 10:09 amBIL-SJU
17h 11m2 stops
American Airlines Logo
6:42 pm - 1:28 pmSJU-BIL
21h 46m2 stops
$647American Airlines
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Booking Insights

KAYAK's insights & trends for Billings to Puerto Rico flights

Get data-powered insights and trends into flights from Billings to Puerto Rico to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Billings to Puerto Rico?

The average price of all round-trip flights from Billings to Puerto Rico clicked on KAYAK for each day over the last 12 months.

For Billings to Puerto Rico, Monday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Puerto Rico back to Billings, the best deals are generally found on Sunday, with Friday being the most expensive.

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Good to know

Cheapest flight$388
Most popular time to fly and prices are also 19% lower on average.
Flight from Billings to San Juan Airport

FAQs - booking Puerto Rico flights

  • How does KAYAK find such low prices on flights from Billings to Puerto Rico?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Billings to Puerto Rico.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Billings to Puerto Rico?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Billings to Puerto Rico is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Billings to Puerto Rico?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Billings to Puerto Rico with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Billings to Puerto Rico?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Billings to Puerto Rico up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Puerto Rico?

    The cheapest time of day to fly to Puerto Rico is generally in the afternoon, when round-trip flights cost $735 on average. The most expensive time of day to fly to Puerto Rico is generally in the morning, which is peak travel time and where the average cost of a ticket is $811.

Reviews of the top airline flying from Billings to Puerto Rico

 
Need help choosing which airline to fly with from Billings to Puerto Rico? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9013 reviews
7.3Comfort
8.1Crew
6.6Food
7.7Boarding
7.1Entertainment
Airline reviews

Even though we were delayed, we were able to make our connection

8.0 ExcellentDavid, Nov 2025TYS - IAH
Read more United Airlines reviews

Even though we were delayed, we were able to make our connection

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Everything you need to know for your flight from Billings to Puerto Rico

Information on your arrival and departure airports

Billings (BIL)