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Cheap flights from San Francisco to San Juan from $178

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 8/10. 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 San Francisco to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
10:57 am - 11:18 pm
SFO
-
SJU
9h 21m
1 stop
JetBlue Logo
4:58 pm - 11:50 pm
SJU
-
SFO
9h 52m
1 stop
$396JetBlue
Tue, Aug 11 - Sat, Aug 22
Multiple Airlines Logo
10:10 pm - 2:16 pm
SFO
-
SJU
13h 06m
1 stop
Multiple Airlines Logo
9:10 pm - 9:11 am
SJU
-
SFO
15h 01m
1 stop
$402Multiple Airlines
Tue, Aug 11 - Tue, Aug 18
Southwest Logo
6:00 am - 10:00 pm
SFO
-
SJU
13h 00m
2 stops
Southwest Logo
5:15 am - 1:50 pm
SJU
-
SFO
11h 35m
2 stops
$406Southwest
Wed, Aug 12 - Wed, Aug 19
JetBlue Logo
10:40 pm - 12:45 pm
SFO
-
SJU
11h 05m
1 stop
JetBlue Logo
4:30 pm - 9:05 am
SJU
-
SFO
19h 35m
1 stop
$419JetBlue
Sat, Sep 5 - Mon, Sep 14
Southwest Logo
7:55 pm - 12:20 pm
SFO
-
SJU
13h 25m
2 stops
Southwest Logo
5:15 am - 1:50 pm
SJU
-
SFO
11h 35m
2 stops
$421Southwest
Mon, Aug 17 - Tue, Aug 25
Southwest Logo
7:25 pm - 11:00 am
SFO
-
SJU
12h 35m
2 stops
Southwest Logo
1:20 pm - 9:10 pm
SJU
-
SFO
10h 50m
2 stops
$431Southwest
Mon, Sep 14 - Tue, Sep 15
Multiple Airlines Logo
11:05 pm - 2:16 pm
SFO
-
SJU
12h 11m
1 stop
Multiple Airlines Logo
4:58 pm - 11:50 pm
SJU
-
SFO
9h 52m
1 stop
$436Multiple Airlines
Sat, Aug 8 - Sat, Aug 29
JetBlue Logo
10:57 am - 11:18 pm
SFO
-
SJU
9h 21m
1 stop
JetBlue Logo
7:25 am - 7:10 pm
SJU
-
SFO
14h 45m
1 stop
$437JetBlue
Sat, Aug 22 - Wed, Aug 26
Multiple Airlines Logo
10:15 pm - 2:15 pm
SFO
-
SJU
13h 00m
1 stop
Multiple Airlines Logo
2:32 pm - 11:19 pm
SJU
-
SFO
11h 47m
1 stop
$441Multiple Airlines
Sun, Aug 30 - Wed, Sep 16
JetBlue Logo
11:59 pm - 1:34 pm
SFO
-
SJU
10h 35m
1 stop
JetBlue Logo
4:30 pm - 11:19 pm
SJU
-
SFO
9h 49m
1 stop
$443JetBlue
Mon, Sep 14 - Tue, Sep 15

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

Our best United Airlines deals on San Francisco to San Juan Luis Munoz Marin Intl Airport flight tickets
United Airlines
Nov 26
SFO11:55 pmSan Francisco
10h 45m
1 stop
SJU2:40 pmSan Juan Luis Munoz Marin Intl
Dec 2
SJU7:45 amSan Juan Luis Munoz Marin Intl
11h 05m
1 stop
SFO2:50 pmSan Francisco
$506
United Airlines
Jun 20
SFO6:05 amSan Francisco
11h 29m
1 stop
SJU8:34 pmSan Juan Luis Munoz Marin Intl
Jun 26
SJU1:00 amSan Juan Luis Munoz Marin Intl
11h 09m
1 stop
SFO9:09 amSan Francisco
$591
United Airlines
Jun 17
SFO2:28 pmSan Francisco
12h 01m
1 stop
SJU5:29 amSan Juan Luis Munoz Marin Intl
Jun 22
SJU2:05 amSan Juan Luis Munoz Marin Intl
10h 20m
1 stop
SFO9:25 amSan Francisco
$616

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

Our best American Airlines deals on San Francisco to San Juan Luis Munoz Marin Intl Airport flight tickets
American Airlines
Sep 14
SFO3:56 pmSan Francisco
16h 04m
2 stops
SJU11:00 amSan Juan Luis Munoz Marin Intl
Sep 15
SJU2:58 pmSan Juan Luis Munoz Marin Intl
11h 20m
1 stop
SFO11:18 pmSan Francisco
$475
American Airlines
Aug 7
SFO5:05 amSan Francisco
15h 54m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Aug 14
SJU6:00 amSan Juan Luis Munoz Marin Intl
13h 02m
2 stops
SFO4:02 pmSan Francisco
$476
American Airlines
Aug 7
SFO8:08 amSan Francisco
12h 51m
2 stops
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Aug 14
SJU6:00 amSan Juan Luis Munoz Marin Intl
13h 02m
2 stops
SFO4:02 pmSan Francisco
$479

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 June 13, 2026.
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

Cheapest round-trip
Quickest round-trip

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Tue 8/11

10:57 am-11:18 pm

1 stop9h 21m

San Juan Luis Munoz Marin Intl

Sat 8/22

4:58 pm-11:50 pm

1 stop9h 52m

$396

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Tue 8/11

10:10 pm-2:16 pm

1 stop13h 06m

San Juan Luis Munoz Marin Intl

Tue 8/18

9:10 pm-9:11 am

1 stop15h 01m

$402

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Wed 8/12

6:00 am-10:00 pm

2 stops13h 00m

San Juan Luis Munoz Marin Intl

Wed 8/19

5:15 am-1:50 pm

2 stops11h 35m

$406

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sat 9/5

10:40 pm-12:45 pm

1 stop11h 05m

San Juan Luis Munoz Marin Intl

Mon 9/14

4:30 pm-9:05 am

1 stop19h 35m

$419

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Mon 8/17

7:55 pm-12:20 pm

2 stops13h 25m

San Juan Luis Munoz Marin Intl

Tue 8/25

5:15 am-1:50 pm

2 stops11h 35m

$421

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Mon 9/14

7:25 pm-11:00 am

2 stops12h 35m

San Juan Luis Munoz Marin Intl

Tue 9/15

1:20 pm-9:10 pm

2 stops10h 50m

$431

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sat 8/8

11:05 pm-2:16 pm

1 stop12h 11m

San Juan Luis Munoz Marin Intl

Sat 8/29

4:58 pm-11:50 pm

1 stop9h 52m

$436

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sat 8/22

10:57 am-11:18 pm

1 stop9h 21m

San Juan Luis Munoz Marin Intl

Wed 8/26

7:25 am-7:10 pm

1 stop14h 45m

$437

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sun 8/30

10:15 pm-2:15 pm

1 stop13h 00m

San Juan Luis Munoz Marin Intl

Wed 9/16

2:32 pm-11:19 pm

1 stop11h 47m

$441

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Mon 9/14

11:59 pm-1:34 pm

1 stop10h 35m

San Juan Luis Munoz Marin Intl

Tue 9/15

4:30 pm-11:19 pm

1 stop9h 49m

$443

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 typical price of a round-trip flight between San Francisco and San Juan Luis Munoz Marin Intl Airport?

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 October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $464.

How far in advance should I book a flight from San Francisco 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 $516 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 $467 on momondo.

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

As of June 2026, prices for San Francisco to San Juan Luis Munoz Marin Intl Airport flights are approximately 5% more expensive 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

Fastest flight time

9h 20m

Direct flights

None
The fastest flight from San Francisco to San Juan Luis Munoz Marin Intl Airport takes 9h 20m
There are no direct flights from San Francisco to San Juan Luis Munoz Marin Intl Airport. There are no popular flight routes from San Francisco to San Juan Luis Munoz Marin Intl Airport.
Search flight deals

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

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

    San Francisco and San Juan Luis Munoz Marin Intl are 3625.1 mi apart from one another. Flights usually cover this in 9h 20m, 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 $134Free CancellationRating
5.6
2,892 reviews
Search Frontier flights
DeltaPriceFrom $185Free CancellationRating
7.9
8,404 reviews
Search Delta flights
Sun Country AirPriceFrom $222Free CancellationRating
6.8
330 reviews
Search Sun Country Air flights
JetBluePriceFrom $277Free CancellationRating
7.1
2,980 reviews
Search JetBlue flights
United AirlinesPriceFrom $344Free CancellationRating
7.4
9,813 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $351Free CancellationRating
7.9
12,497 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $367Free CancellationRating
7.1
11,647 reviews
Search American Airlines flights
SouthwestPriceFrom $398Free CancellationRating
7.9
4,234 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
Rio Grande
Humacao
Caguas
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.

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