$273 Find Cheap Flights from Billings to Puerto Rico - Compare and Save

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 7/20. 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

Wed, Sep 9 - Sat, Sep 19
United Airlines Logo
5:00 am - 8:38 pm
BIL
-
SJU
13h 38m
2 stops
United Airlines Logo
2:00 pm - 9:00 pm
SJU
-
BIL
9h 00m
1 stop
$586United Airlines
Tue, Aug 11 - Mon, Aug 17
American Airlines Logo
12:22 pm - 11:15 pm
BIL
-
SJU
8h 53m
1 stop
American Airlines Logo
12:55 am - 11:50 am
SJU
-
BIL
12h 55m
1 stop
$642American Airlines
Tue, Aug 11 - Tue, Aug 18
American Airlines Logo
1:13 pm - 9:43 am
BIL
-
SJU
18h 30m
2 stops
American Airlines Logo
7:24 pm - 11:50 am
SJU
-
BIL
18h 26m
2 stops
$669American Airlines
Thu, Sep 10 - Fri, Sep 18
United Airlines Logo
7:00 am - 11:50 pm
BIL
-
SJU
14h 50m
2 stops
United Airlines Logo
7:00 am - 5:16 pm
SJU
-
BIL
12h 16m
2 stops
$681United Airlines
Fri, Sep 4 - Sat, Sep 12
Delta Logo
6:26 am - 10:29 pm
BIL
-
SJU
14h 03m
2 stops
Delta Logo
7:30 am - 7:37 pm
SJU
-
BIL
14h 07m
2 stops
$706Delta
Thu, Sep 10 - Fri, Sep 18
American Airlines Logo
12:28 pm - 11:00 am
BIL
-
SJU
20h 32m
2 stops
American Airlines Logo
6:27 am - 10:10 pm
SJU
-
BIL
17h 43m
2 stops
$709American Airlines
Thu, Sep 10 - Fri, Sep 18
American Airlines Logo
1:13 pm - 11:00 am
BIL
-
SJU
19h 47m
2 stops
American Airlines Logo
4:38 pm - 11:57 am
SJU
-
BIL
21h 19m
2 stops
$714American Airlines
Mon, Oct 26 - Thu, Oct 29
United Airlines Logo
7:00 am - 11:36 pm
BIL
-
SJU
14h 36m
2 stops
United Airlines Logo
7:30 am - 8:51 pm
SJU
-
BIL
15h 21m
2 stops
$732United Airlines
Tue, Aug 11 - Tue, Aug 18
United Airlines Logo
7:00 am - 8:38 pm
BIL
-
SJU
11h 38m
2 stops
United Airlines Logo
7:00 am - 9:00 pm
SJU
-
BIL
16h 00m
3 stops
$758United Airlines
Wed, Sep 9 - Fri, Sep 18
United Airlines Logo
5:00 am - 11:50 pm
BIL
-
SJU
16h 50m
3 stops
United Airlines Logo
1:00 am - 10:47 am
SJU
-
BIL
11h 47m
2 stops
$760United Airlines
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.

Which airlines provide the cheapest flights from Billings to Puerto Rico?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Billings to Puerto Rico were found on United Airlines ($586) and Delta ($586).

Good to know

Cheapest flight$273
Flight from Billings to San Juan

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.

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 9774 reviews
8.1Crew
7.7Boarding
7.3Comfort
7.1Entertainment
6.6Food
Airline reviews

Even through the flight was delayed due to storms near IAH The flight was great! The crew was so hospitable and professional

10.0 ExcellentAnonymous, Jun 2026
GSP - IAH
Read more United Airlines reviews

Even through the flight was delayed due to storms near IAH The flight was great! The crew was so hospitable and professional

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

Boarded early, left early, arrived 40 mins early! A win win for me!

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

It was a short flight so I was expecting too much

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

I felt scammed. The priced advertised was different than what I paid. I paid the whole some online. I then got a call 20 minutes later saying I need to paid 70 more person. She said the price online is not the guaranteed price.

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

Information on your arrival and departure airports