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Cheap flights from San Francisco to San Juan from $197

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 8/5. 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

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Find the cheapest flights from San Francisco to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:10 pm - 2:16 pm
SFO
-
SJU
13h 06m
1 stop
Frontier Logo
6:00 am - 10:29 am
SJU
-
SFO
31h 29m
1 stop
$426Frontier
Wed, Aug 12 - Wed, Aug 19
JetBlue Logo
10:55 pm - 3:51 pm
SFO
-
SJU
13h 56m
1 stop
JetBlue Logo
1:00 pm - 11:58 pm
SJU
-
SFO
13h 58m
1 stop
$436JetBlue
Mon, Oct 26 - Thu, Oct 29
Multiple Airlines Logo
6:00 am - 9:42 pm
SFO
-
SJU
12h 42m
1 stop
Multiple Airlines Logo
6:00 am - 10:29 am
SJU
-
SFO
31h 29m
1 stop
$437Multiple Airlines
Wed, Jun 3 - Tue, Aug 25
Southwest Logo
5:45 pm - 9:10 am
SFO
-
SJU
12h 25m
2 stops
Southwest Logo
5:30 am - 1:00 pm
SJU
-
SFO
10h 30m
1 stop
$446Southwest
Sun, Aug 16 - Fri, Aug 28
JetBlue Logo
6:00 am - 9:42 pm
SFO
-
SJU
12h 42m
1 stop
JetBlue Logo
4:58 pm - 11:50 pm
SJU
-
SFO
9h 52m
1 stop
$447JetBlue
Wed, Jun 3 - Thu, Aug 27
Frontier Logo
10:10 pm - 2:16 pm
SFO
-
SJU
13h 06m
1 stop
Frontier Logo
3:06 am - 10:29 am
SJU
-
SFO
10h 23m
1 stop
$451Frontier
Thu, Aug 6 - Sun, Aug 23
Southwest Logo
6:00 am - 10:00 pm
SFO
-
SJU
13h 00m
2 stops
Southwest Logo
1:20 pm - 9:10 pm
SJU
-
SFO
10h 50m
2 stops
$456Southwest
Tue, Aug 18 - Tue, Aug 25
Southwest Logo
3:20 pm - 9:10 am
SFO
-
SJU
14h 50m
2 stops
Southwest Logo
5:30 am - 1:00 pm
SJU
-
SFO
10h 30m
1 stop
$458Southwest
Thu, Aug 13 - Mon, Aug 17
Frontier Logo
10:15 pm - 2:15 pm
SFO
-
SJU
13h 00m
1 stop
Frontier Logo
3:06 am - 10:29 am
SJU
-
SFO
10h 23m
1 stop
$466Frontier
Fri, Aug 28 - Tue, Sep 1
Delta Logo
12:12 am - 4:33 pm
SFO
-
SJU
13h 21m
2 stops
Delta Logo
7:30 am - 8:06 pm
SJU
-
SFO
15h 36m
1 stop
$470Delta
Thu, Aug 6 - Mon, Aug 24

American Airlines flights from San Francisco to San Juan

Our best American Airlines deals on San Francisco to San Juan flight tickets
American Airlines
Aug 7
SFO3:38 pmSan Francisco
20h 16m
1 stop
SJU2:54 pmSan Juan Luis Munoz Marin Intl
Aug 14
SJU10:33 amSan Juan Luis Munoz Marin Intl
17h 18m
1 stop
SFO12:51 amSan Francisco
$480
American Airlines
Aug 5
SFO6:00 amSan Francisco
14h 07m
1 stop
SJU11:07 pmSan Juan Luis Munoz Marin Intl
Aug 11
SJU6:00 amSan Juan Luis Munoz Marin Intl
13h 02m
2 stops
SFO4:02 pmSan Francisco
$485
American Airlines
Aug 9
SFO9:05 amSan Francisco
9h 50m
1 stop
SJU9:55 pmSan Juan Luis Munoz Marin Intl
Aug 15
SJU7:05 amSan Juan Luis Munoz Marin Intl
11h 57m
2 stops
SFO4:02 pmSan Francisco
$511

JetBlue flights from San Francisco to San Juan

Our best JetBlue deals on San Francisco to San Juan flight tickets
JetBlue
Aug 12
SFO6:00 amSan Francisco
13h 39m
1 stop
SJU10:39 pmSan Juan Luis Munoz Marin Intl
Aug 18
SJU4:58 pmSan Juan Luis Munoz Marin Intl
9h 52m
1 stop
SFO11:50 pmSan Francisco
$442
JetBlue
Jun 3
SFO6:00 amSan Francisco
12h 42m
1 stop
SJU9:42 pmSan Juan Luis Munoz Marin Intl
Aug 27
SJU4:58 pmSan Juan Luis Munoz Marin Intl
9h 52m
1 stop
SFO11:50 pmSan Francisco
$447
JetBlue
Aug 7
SFO10:40 pmSan Francisco
19h 01m
1 stop
SJU8:41 pmSan Juan Luis Munoz Marin Intl
Aug 14
SJU4:58 pmSan Juan Luis Munoz Marin Intl
9h 52m
1 stop
SFO11:50 pmSan Francisco
$475

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to San Juan 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 May 18, 2026.
Use the filters below to find and compare flights from San Francisco to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Wed 8/12

10:10 pm-2:16 pm

1 stop13h 06m

San Juan Luis Munoz Marin Intl

Wed 8/19

6:00 am-10:29 am

1 stop31h 29m

$426

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Mon 10/26

10:55 pm-3:51 pm

1 stop13h 56m

San Juan Luis Munoz Marin Intl

Thu 10/29

1:00 pm-11:58 pm

1 stop13h 58m

$436

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Wed 6/3

6:00 am-9:42 pm

1 stop12h 42m

San Juan Luis Munoz Marin Intl

Tue 8/25

6:00 am-10:29 am

1 stop31h 29m

$437

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sun 8/16

5:45 pm-9:10 am

2 stops12h 25m

San Juan Luis Munoz Marin Intl

Fri 8/28

5:30 am-1:00 pm

1 stop10h 30m

$446
Quickest round-trip

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Wed 6/3

6:00 am-9:42 pm

1 stop12h 42m

San Juan Luis Munoz Marin Intl

Thu 8/27

4:58 pm-11:50 pm

1 stop9h 52m

$447

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Thu 8/6

10:10 pm-2:16 pm

1 stop13h 06m

San Juan Luis Munoz Marin Intl

Sun 8/23

3:06 am-10:29 am

1 stop10h 23m

$451

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Tue 8/18

6:00 am-10:00 pm

2 stops13h 00m

San Juan Luis Munoz Marin Intl

Tue 8/25

1:20 pm-9:10 pm

2 stops10h 50m

$456

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Thu 8/13

3:20 pm-9:10 am

2 stops14h 50m

San Juan Luis Munoz Marin Intl

Mon 8/17

5:30 am-1:00 pm

1 stop10h 30m

$458

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Fri 8/28

10:15 pm-2:15 pm

1 stop13h 00m

San Juan Luis Munoz Marin Intl

Tue 9/1

3:06 am-10:29 am

1 stop10h 23m

$466

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Thu 8/6

12:12 am-4:33 pm

2 stops13h 21m

San Juan Luis Munoz Marin Intl

Mon 8/24

7:30 am-8:06 pm

1 stop15h 36m

$470

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

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?

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in May, then April is your next best option. Flight prices from San Francisco to San Juan during April average around $122.

How far in advance should I book a flight from San Francisco to San Juan?

You are more likely to see cheaper flights to San Juan from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $510 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from San Francisco for as low as $447 on momondo.

Cheap San Francisco to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to San Juan

Fastest flight time

9h 05m

Direct flights

None
The fastest flight from San Francisco to San Juan takes 9h 05m
There are no direct flights from San Francisco to San Juan. There are no popular flight routes from San Francisco to San Juan.
Search flight deals

Frequently asked questions about flying from San Francisco to San Juan

  • How far is San Francisco to San Juan by plane?

    San Francisco and San Juan are 3618.4 mi apart from one another. In terms of flight time, this usually takes a little over 9h 05m.

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

    Prices for flights from San Francisco Airport to San Juan are refreshed on a daily basis.

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

  • How old do you have to be to fly from San Francisco Airport to San Juan?

    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.

  • What documentation or ID do you need to fly to San Juan?

    The travel and health documents required for your trip to San Juan can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Juan. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from San Francisco to San Juan

Compare and see reviews for airlines that fly from San Francisco to San Juan with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $134Free CancellationRating
5.6
2,946 reviews
Search Frontier flights
DeltaPriceFrom $185Free CancellationRating
7.9
8,447 reviews
Search Delta flights
Sun Country AirPriceFrom $222Free CancellationRating
6.8
334 reviews
Search Sun Country Air flights
JetBluePriceFrom $279Free CancellationRating
7.1
2,979 reviews
Search JetBlue flights
Alaska AirlinesPriceFrom $351Free CancellationRating
7.9
12,378 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $359Free CancellationRating
7.4
9,737 reviews
Search United Airlines flights
American AirlinesPriceFrom $360Free CancellationRating
7.1
11,650 reviews
Search American Airlines flights
SouthwestPriceFrom $412Free CancellationRating
7.9
4,288 reviews
Search Southwest flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Francisco to San Juan for you.

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

Yes. momondo enables you to select and highlight flights to San Juan from San Francisco with this policy.

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?

Yes. momondo can track prices for San Francisco to San Juan flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 7.1 mi from San Juan
San Juan Isla Grande Airport
San Juan Luis Munoz Marin Intl Airport