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Cheap flights from Billings to San Juan from $642

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Billings to San Juan departing on 9/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Billings to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
1:13 pm - 9:24 am
BIL
-
SJU
18h 11m
2 stops
American Airlines Logo
3:41 pm - 11:57 am
SJU
-
BIL
22h 16m
2 stops
$642American 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
$647American Airlines
Wed, Sep 9 - Sat, Sep 19
United Airlines Logo
7:00 am - 11:50 pm
BIL
-
SJU
14h 50m
2 stops
United Airlines Logo
2:00 pm - 10:53 pm
SJU
-
BIL
10h 53m
1 stop
$676United Airlines
Wed, Sep 9 - Sat, Sep 19
American Airlines Logo
12:22 pm - 11:15 pm
BIL
-
SJU
8h 53m
1 stop
American Airlines Logo
7:24 pm - 11:50 am
SJU
-
BIL
18h 26m
2 stops
$694American Airlines
Tue, Aug 11 - Tue, Aug 18
American Airlines Logo
12:22 pm - 11:15 pm
BIL
-
SJU
8h 53m
1 stop
American Airlines Logo
7:24 pm - 11:50 am
SJU
-
BIL
18h 26m
2 stops
$714American Airlines
Tue, Aug 11 - Tue, Aug 18
United Airlines Logo
5:00 am - 8:38 pm
BIL
-
SJU
13h 38m
2 stops
United Airlines Logo
2:00 pm - 10:53 pm
SJU
-
BIL
10h 53m
1 stop
$721United Airlines
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 - 10:53 pm
SJU
-
BIL
10h 53m
1 stop
$731United Airlines
Wed, Sep 9 - Sat, Sep 19
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
$746American Airlines
Tue, Aug 11 - Mon, Aug 17
United Airlines Logo
5:07 am - 8:38 pm
BIL
-
SJU
13h 31m
2 stops
United Airlines Logo
1:00 am - 1:21 pm
SJU
-
BIL
14h 21m
2 stops
$754United Airlines
Mon, Aug 24 - Sat, Aug 29
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
$766American Airlines
Tue, Aug 11 - Mon, Aug 17

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American Airlines flights from Billings to San Juan Luis Munoz Marin Intl Airport

Our best American Airlines deals on Billings to San Juan Luis Munoz Marin Intl Airport flight tickets
American Airlines
Sep 10
BIL1:13 pmBillings Logan Intl
18h 11m
2 stops
SJU9:24 amSan Juan Luis Munoz Marin Intl
Sep 18
SJU11:51 amSan Juan Luis Munoz Marin Intl
12h 19m
2 stops
BIL10:10 pmBillings Logan Intl
$642
American Airlines
Sep 9
BIL1:13 pmBillings Logan Intl
19h 47m
2 stops
SJU11:00 amSan Juan Luis Munoz Marin Intl
Sep 19
SJU4:38 pmSan Juan Luis Munoz Marin Intl
21h 19m
2 stops
BIL11:57 amBillings Logan Intl
$647
American Airlines
Aug 11
BIL12:22 pmBillings Logan Intl
8h 53m
1 stop
SJU11:15 pmSan Juan Luis Munoz Marin Intl
Aug 17
SJU12:55 amSan Juan Luis Munoz Marin Intl
12h 55m
1 stop
BIL11:50 amBillings Logan Intl
$694

United Airlines flights from Billings to San Juan Luis Munoz Marin Intl Airport

Our best United Airlines deals on Billings to San Juan Luis Munoz Marin Intl Airport flight tickets
United Airlines
Sep 9
BIL7:00 amBillings Logan Intl
14h 50m
2 stops
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Sep 19
SJU2:00 pmSan Juan Luis Munoz Marin Intl
10h 53m
1 stop
BIL10:53 pmBillings Logan Intl
$676
United Airlines
Sep 9
BIL5:00 amBillings Logan Intl
13h 38m
2 stops
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Sep 19
SJU2:00 pmSan Juan Luis Munoz Marin Intl
10h 53m
1 stop
BIL10:53 pmBillings Logan Intl
$721
United Airlines
Sep 9
BIL5:00 amBillings Logan Intl
13h 38m
2 stops
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Sep 19
SJU2:00 pmSan Juan Luis Munoz Marin Intl
10h 53m
1 stop
BIL10:53 pmBillings Logan Intl
$731

momondo Fare Finder

 
Customize your flight search to find flights from Billings to San Juan Luis Munoz Marin Intl Airport 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, momondo users made 832,500 searches. Data last updated July 5, 2026.
Use the filters below to find and compare flights from Billings to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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

3:41 pm-11:57 am

2 stops22h 16m

$642

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Wed 9/9

1:13 pm-11:00 am

2 stops19h 47m

San Juan Luis Munoz Marin Intl

Sat 9/19

4:38 pm-11:57 am

2 stops21h 19m

$647

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

Sat 9/19

2:00 pm-10:53 pm

1 stop10h 53m

$676

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Tue 8/11

12:22 pm-11:15 pm

1 stop8h 53m

San Juan Luis Munoz Marin Intl

Tue 8/18

7:24 pm-11:50 am

2 stops18h 26m

$694

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Tue 8/11

12:22 pm-11:15 pm

1 stop8h 53m

San Juan Luis Munoz Marin Intl

Tue 8/18

7:24 pm-11:50 am

2 stops18h 26m

$714

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Wed 9/9

5:00 am-8:38 pm

2 stops13h 38m

San Juan Luis Munoz Marin Intl

Sat 9/19

2:00 pm-10:53 pm

1 stop10h 53m

$721

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Wed 9/9

5:00 am-8:38 pm

2 stops13h 38m

San Juan Luis Munoz Marin Intl

Sat 9/19

2:00 pm-10:53 pm

1 stop10h 53m

$731
Quickest round-trip

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Tue 8/11

12:22 pm-11:15 pm

1 stop8h 53m

San Juan Luis Munoz Marin Intl

Mon 8/17

12:55 am-11:50 am

1 stop12h 55m

$746

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Mon 8/24

5:07 am-8:38 pm

2 stops13h 31m

San Juan Luis Munoz Marin Intl

Sat 8/29

1:00 am-1:21 pm

2 stops14h 21m

$754

BillingsSan Juan

BIL - SJU

BILSJU

Billings Logan Intl

Tue 8/11

12:22 pm-11:15 pm

1 stop8h 53m

San Juan Luis Munoz Marin Intl

Mon 8/17

12:55 am-11:50 am

1 stop12h 55m

$766

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Billings to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Billings to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Billings to San Juan Luis Munoz Marin Intl Airport (BIL to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Billings to San Juan Luis Munoz Marin Intl Airport

Fastest flight time

11h 19m

Direct flights

None
The fastest flight from Billings to San Juan Luis Munoz Marin Intl Airport takes 11h 19m
There are no direct flights from Billings to San Juan Luis Munoz Marin Intl Airport. There are no popular flight routes from Billings to San Juan Luis Munoz Marin Intl Airport.
Search flight deals

Frequently asked questions about flying from Billings to San Juan Luis Munoz Marin Intl Airport

  • How far is Billings Logan Intl to San Juan Luis Munoz Marin Intl by plane?

    The distance between Billings Logan Intl and San Juan Luis Munoz Marin Intl is about 3065.6 mi. 11h 19m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Billings Logan Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Billings Logan Intl Airport to San Juan Luis Munoz Marin Intl Airport are updated daily.

  • How many operators does momondo search for flights from Billings Logan Intl Airport to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from Billings Logan Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Billings Logan Intl Airport to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The required travel and health documents for your San Juan Luis Munoz Marin Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Juan Luis Munoz Marin Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Billings to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Billings to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Billings to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $495Free CancellationRating
7.4
9,933 reviews
Search United Airlines flights

Frequently asked questions about flying from Billings to San Juan Luis Munoz Marin Intl Airport

  • How do I get Price Alerts for flights from Billings to San Juan Luis Munoz Marin Intl Airport?

    Price Alerts will notify you by email when the price for flights to San Juan Luis Munoz Marin Intl Airport from Billings decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Billings to San Juan Luis Munoz Marin Intl Airport with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Luquillo
Rio Grande
Humacao
Caguas
Bayamón

Why use momondo?

Why should I use momondo to find a flight deal from Billings to San Juan?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Billings to San Juan. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Billings to San Juan with flexible booking policies on momondo?

All flight searches from Billings to San Juan on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Billings to San Juan?

Once you have performed a search for Billings to San Juan flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Billings to San Juan right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Juan, momondo offers a useful price alert feature which will track prices for flights to San Juan from Billings and alert you when they change.

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