Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from San Francisco to San Juan from $134

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to San Juan departing on 8/22. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from San Francisco to San Juan

Cheap round-trip flights

Delta Logo
9:38 pm - 1:21 pmSFO-SJU
12h 43m1 stop
Delta Logo
7:15 am - 8:40 pmSJU-SFO
16h 25m2 stops
$319Delta
Find Deal
Sun, Oct 5 - Sat, Oct 25
Delta Logo
6:10 am - 9:59 pmSFO-SJU
12h 49m1 stop
Delta Logo
7:15 am - 6:56 pmSJU-SFO
14h 41m1 stop
$342Delta
Find Deal
Sat, Oct 11 - Fri, Oct 17
Frontier Logo
11:00 pm - 2:11 pmSFO-SJU
12h 11m1 stop
Frontier Logo
7:15 am - 9:21 pmSJU-SFO
17h 06m1 stop
$344Frontier
Find Deal
Sun, Sep 21 - Fri, Sep 26
JetBlue Logo
10:15 pm - 1:45 pmSFO-SJU
12h 30m1 stop
JetBlue Logo
4:35 pm - 11:12 pmSJU-SFO
9h 37m1 stop
$364JetBlue
Find Deal
Mon, Oct 6 - Tue, Oct 7
United Airlines Logo
12:43 am - 3:42 pmSFO-SJU
11h 59m1 stop
United Airlines Logo
3:56 pm - 11:59 pmSJU-SFO
11h 03m1 stop
$369United Airlines
Find Deal
Mon, Sep 15 - Fri, Sep 26
JetBlue Logo
8:15 am - 11:53 pmSFO-SJU
11h 38m1 stop
JetBlue Logo
9:30 am - 8:06 pmSJU-SFO
14h 36m1 stop
$370JetBlue
Find Deal
Fri, Dec 5 - Sat, Dec 13
United Airlines Logo
12:43 am - 3:42 pmSFO-SJU
11h 59m1 stop
United Airlines Logo
4:55 pm - 12:59 amSJU-SFO
11h 04m1 stop
$380United Airlines
Find Deal
Sat, Sep 6 - Sat, Sep 13
American Airlines Logo
12:15 pm - 11:09 amSFO-SJU
19h 54m1 stop
American Airlines Logo
12:01 pm - 10:54 pmSJU-SFO
13h 53m1 stop
$392American Airlines
Find Deal
Sun, Aug 31 - Wed, Oct 1
American Airlines Logo
5:09 am - 11:54 pmSFO-SJU
15h 45m1 stop
American Airlines Logo
5:30 am - 7:09 pmSJU-SFO
16h 39m1 stop
$394American Airlines
Find Deal
Sat, Oct 11 - Sat, Oct 18
Frontier Logo
10:29 pm - 2:26 pmSFO-SJU
12h 57m1 stop
Frontier Logo
7:15 am - 9:21 pmSJU-SFO
17h 06m1 stop
$396Frontier
Find Deal
Fri, Aug 29 - Fri, Sep 19

Frontier flights from San Francisco to San Juan Luis Munoz Marin Intl Airport

Our best Frontier deals on San Francisco to San Juan Luis Munoz Marin Intl Airport flight tickets
Frontier
Sep 21
SFO11:00 pmSan Francisco
12h 11m
1 stop
SJU2:11 pmSan Juan Luis Munoz Marin Intl
Sep 26
SJU7:15 amSan Juan Luis Munoz Marin Intl
17h 06m
1 stop
SFO9:21 pmSan Francisco
$344
Find similar
Frontier
Aug 29
SFO10:29 pmSan Francisco
12h 57m
1 stop
SJU2:26 pmSan Juan Luis Munoz Marin Intl
Sep 19
SJU7:15 amSan Juan Luis Munoz Marin Intl
17h 06m
1 stop
SFO9:21 pmSan Francisco
$396
Find similar
Frontier
Aug 16
SFO8:53 pmSan Francisco
9h 11m
1 stop
SJU9:04 amSan Juan Luis Munoz Marin Intl
Aug 17
SJU3:40 amSan Juan Luis Munoz Marin Intl
9h 45m
1 stop
SFO10:25 amSan Francisco
$403
Find similar

JetBlue flights from San Francisco to San Juan Luis Munoz Marin Intl Airport

Our best JetBlue deals on San Francisco to San Juan Luis Munoz Marin Intl Airport flight tickets
JetBlue
Oct 6
SFO10:15 pmSan Francisco
12h 30m
1 stop
SJU1:45 pmSan Juan Luis Munoz Marin Intl
Oct 7
SJU4:35 pmSan Juan Luis Munoz Marin Intl
9h 37m
1 stop
SFO11:12 pmSan Francisco
$364
Find similar
JetBlue
Dec 5
SFO8:15 amSan Francisco
11h 38m
1 stop
SJU11:53 pmSan Juan Luis Munoz Marin Intl
Dec 13
SJU9:30 amSan Juan Luis Munoz Marin Intl
14h 36m
1 stop
SFO8:06 pmSan Francisco
$370
Find similar
JetBlue
Dec 5
SFO8:15 amSan Francisco
11h 38m
1 stop
SJU11:53 pmSan Juan Luis Munoz Marin Intl
Dec 15
SJU7:21 pmSan Juan Luis Munoz Marin Intl
18h 44m
1 stop
SFO10:05 amSan Francisco
$373
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco 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 August 14, 2025.
Use the filters below to find and compare flights from San Francisco to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sun 10/5

9:38 pm-1:21 pm

1 stop12h 43m

San Juan Luis Munoz Marin Intl

Sat 10/25

7:15 am-8:40 pm

2 stops16h 25m

$319

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sat 10/11

6:10 am-9:59 pm

1 stop12h 49m

San Juan Luis Munoz Marin Intl

Fri 10/17

7:15 am-6:56 pm

1 stop14h 41m

$342

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sun 9/21

11:00 pm-2:11 pm

1 stop12h 11m

San Juan Luis Munoz Marin Intl

Fri 9/26

7:15 am-9:21 pm

1 stop17h 06m

$344

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Mon 10/6

10:15 pm-1:45 pm

1 stop12h 30m

San Juan Luis Munoz Marin Intl

Tue 10/7

4:35 pm-11:12 pm

1 stop9h 37m

$364

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Mon 9/15

12:43 am-3:42 pm

1 stop11h 59m

San Juan Luis Munoz Marin Intl

Fri 9/26

3:56 pm-11:59 pm

1 stop11h 03m

$369

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Fri 12/5

8:15 am-11:53 pm

1 stop11h 38m

San Juan Luis Munoz Marin Intl

Sat 12/13

9:30 am-8:06 pm

1 stop14h 36m

$370

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sat 9/6

12:43 am-3:42 pm

1 stop11h 59m

San Juan Luis Munoz Marin Intl

Sat 9/13

4:55 pm-12:59 am

1 stop11h 04m

$380

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sun 8/31

12:15 pm-11:09 am

1 stop19h 54m

San Juan Luis Munoz Marin Intl

Wed 10/1

12:01 pm-10:54 pm

1 stop13h 53m

$392

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sat 10/11

5:09 am-11:54 pm

1 stop15h 45m

San Juan Luis Munoz Marin Intl

Sat 10/18

5:30 am-7:09 pm

1 stop16h 39m

$394

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Fri 8/29

10:29 pm-2:26 pm

1 stop12h 57m

San Juan Luis Munoz Marin Intl

Fri 9/19

7:15 am-9:21 pm

1 stop17h 06m

$396

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to San Juan from

How to get the cheapest flight ticket from San Francisco to San Juan Luis Munoz Marin Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport?

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of May, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $432.

What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from San Francisco is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $456. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from San Francisco because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $573.

What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is at noon when flights can be purchased for as low as $377. Flights in the morning are often more expensive with an average ticket price of $549.

How far in advance should I book a flight to San Juan Luis Munoz Marin Intl Airport?

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $502 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from San Francisco for as low as $440 on momondo.

How have San Francisco to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of August 2025, prices for San Francisco to San Juan Luis Munoz Marin Intl Airport flights are approximately 18% cheaper when compared to flights at the same time last year.

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

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco 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 San Francisco to San Juan Luis Munoz Marin Intl Airport (SFO to SJU) flight deals and tips

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

Best Price Found

$134

Fastest flight time

8h 53m

Direct flights

None
The best one-way flight to San Juan Luis Munoz Marin Intl Airport from San Francisco in the past 72 hours is $134. The best round-trip flight deal from San Francisco to San Juan Luis Munoz Marin Intl Airport found on momondo in the last 72 hours is $319.
The fastest flight from San Francisco to San Juan Luis Munoz Marin Intl Airport takes 8h 53m
There are no direct flights from San Francisco to San Juan Luis Munoz Marin Intl Airport. Popular non-direct route for this connection is San Francisco Airport - San Juan Luis Munoz Marin Intl Airport.
Search flight deals

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

    San Francisco and San Juan Luis Munoz Marin Intl are 3625.8 mi apart from one another. Flights usually cover this in 9h 33m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from San Francisco Airport to San Juan Luis Munoz Marin Intl Airport were last updated today.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco 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 travel and health documents you'll need for your trip to San Juan Luis Munoz Marin Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Juan Luis Munoz Marin Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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

Compare and see reviews for airlines that fly from San Francisco to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $160Free CancellationRating
5.8
3,219 reviews
Search Frontier flights
DeltaPriceFrom $242Free CancellationRating
8.0
7,980 reviews
Search Delta flights
JetBluePriceFrom $289Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
Sun Country AirPriceFrom $337Free CancellationRating
6.9
333 reviews
Search Sun Country Air flights
United AirlinesPriceFrom $343Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights
American AirlinesPriceFrom $344Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $486Free CancellationRating
8.0
4,244 reviews
Search Southwest flights

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
Caguas
Humacao
Rio Grande
Bayamón

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Juan from San Francisco.

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

Flights from San Francisco to San Juan with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between San Francisco and San Juan by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of San Francisco to San Juan flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your San Juan Luis Munoz Marin Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 8/19
Tue 8/26
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to San Juan