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Cheap flights from San Francisco to San Juan from $176

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 5/29. 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
11:16 pm - 2:01 am
SFO
-
SJU
23h 45m
2 stops
Frontier Logo
3:23 pm - 5:34 pm
SJU
-
SFO
29h 11m
1 stop
$348Frontier
Cum, Nis 17 - Cum, Nis 24
Multiple Airlines Logo
10:38 pm - 2:08 pm
SFO
-
SJU
12h 30m
1 stop
Multiple Airlines Logo
6:00 pm - 1:00 pm
SJU
-
SFO
22h 00m
2 stops
$350Multiple Airlines
Cmt, May 2 - Cmt, May 9
Frontier Logo
8:14 pm - 9:54 am
SFO
-
SJU
34h 40m
2 stops
Frontier Logo
3:23 pm - 5:34 pm
SJU
-
SFO
29h 11m
1 stop
$354Frontier
Pzt, Nis 13 - Cum, Nis 24
Multiple Airlines Logo
10:38 pm - 2:08 pm
SFO
-
SJU
12h 30m
1 stop
Multiple Airlines Logo
12:15 pm - 11:56 pm
SJU
-
SFO
14h 41m
1 stop
$355Multiple Airlines
Cmt, May 16 - Çar, May 20
Frontier Logo
10:38 pm - 2:17 pm
SFO
-
SJU
12h 39m
1 stop
Frontier Logo
6:00 am - 7:14 pm
SJU
-
SFO
16h 14m
1 stop
$356Frontier
Sal, Mar 24 - Cum, Nis 3
Multiple Airlines Logo
10:38 pm - 2:37 pm
SFO
-
SJU
12h 59m
1 stop
Multiple Airlines Logo
12:50 pm - 11:59 pm
SJU
-
SFO
14h 09m
1 stop
$357Multiple Airlines
Cum, May 1 - Cmt, May 9
Multiple Airlines Logo
11:16 pm - 11:35 am
SFO
-
SJU
33h 19m
1 stop
Multiple Airlines Logo
7:17 pm - 4:54 pm
SJU
-
SFO
24h 37m
2 stops
$358Multiple Airlines
Cum, Nis 24 - Pzt, May 4
Multiple Airlines Logo
10:40 pm - 2:17 pm
SFO
-
SJU
12h 37m
1 stop
Multiple Airlines Logo
5:19 am - 11:16 pm
SJU
-
SFO
20h 57m
1 stop
$359Multiple Airlines
Sal, Mar 10 - Sal, Mar 17
Multiple Airlines Logo
10:38 pm - 2:08 pm
SFO
-
SJU
12h 30m
1 stop
Multiple Airlines Logo
5:01 am - 11:50 pm
SJU
-
SFO
21h 49m
2 stops
$360Multiple Airlines
Cmt, May 2 - Çar, May 6
Multiple Airlines Logo
10:38 pm - 2:08 pm
SFO
-
SJU
12h 30m
1 stop
Multiple Airlines Logo
8:55 pm - 10:17 am
SJU
-
SFO
16h 22m
1 stop
$361Multiple Airlines
Cum, May 15 - Per, May 21

Frontier flights from San Francisco to San Juan

Our best Frontier deals on San Francisco to San Juan flight tickets
Frontier
Apr 17
SFO11:16 pmSan Francisco
23h 45m
2 stops
SJU2:01 amSan Juan Luis Munoz Marin Intl
Apr 24
SJU3:23 pmSan Juan Luis Munoz Marin Intl
29h 11m
1 stop
SFO5:34 pmSan Francisco
$348
Frontier
Apr 13
SFO8:14 pmSan Francisco
34h 40m
2 stops
SJU9:54 amSan Juan Luis Munoz Marin Intl
Apr 24
SJU3:23 pmSan Juan Luis Munoz Marin Intl
29h 11m
1 stop
SFO5:34 pmSan Francisco
$354
Frontier
Mar 24
SFO10:38 pmSan Francisco
12h 39m
1 stop
SJU2:17 pmSan Juan Luis Munoz Marin Intl
Apr 3
SJU6:00 amSan Juan Luis Munoz Marin Intl
16h 14m
1 stop
SFO7:14 pmSan Francisco
$356

JetBlue flights from San Francisco to San Juan

Our best JetBlue deals on San Francisco to San Juan flight tickets
JetBlue
Apr 15
SFO8:00 amSan Francisco
9h 49m
1 stop
SJU8:49 pmSan Juan Luis Munoz Marin Intl
Apr 22
SJU4:20 pmSan Juan Luis Munoz Marin Intl
10h 36m
1 stop
SFO11:56 pmSan Francisco
$373
JetBlue
Apr 13
SFO11:59 pmSan Francisco
11h 30m
1 stop
SJU2:29 pmSan Juan Luis Munoz Marin Intl
Apr 16
SJU3:00 pmSan Juan Luis Munoz Marin Intl
11h 55m
1 stop
SFO11:55 pmSan Francisco
$383
JetBlue
Apr 13
SFO11:59 pmSan Francisco
11h 30m
1 stop
SJU2:29 pmSan Juan Luis Munoz Marin Intl
Apr 24
SJU7:25 amSan Juan Luis Munoz Marin Intl
14h 57m
1 stop
SFO7:22 pmSan Francisco
$387

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 Şubat 26, 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

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Cum 4/17

11:16 pm-2:01 am

2 stops23h 45m

San Juan Luis Munoz Marin Intl

Cum 4/24

3:23 pm-5:34 pm

1 stop29h 11m

$348

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Cmt 5/2

10:38 pm-2:08 pm

1 stop12h 30m

San Juan Luis Munoz Marin Intl

Cmt 5/9

6:00 pm-1:00 pm

2 stops22h 00m

$350

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Pzt 4/13

8:14 pm-9:54 am

2 stops34h 40m

San Juan Luis Munoz Marin Intl

Cum 4/24

3:23 pm-5:34 pm

1 stop29h 11m

$354

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Cmt 5/16

10:38 pm-2:08 pm

1 stop12h 30m

San Juan Luis Munoz Marin Intl

Çar 5/20

12:15 pm-11:56 pm

1 stop14h 41m

$355

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sal 3/24

10:38 pm-2:17 pm

1 stop12h 39m

San Juan Luis Munoz Marin Intl

Cum 4/3

6:00 am-7:14 pm

1 stop16h 14m

$356

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Cum 5/1

10:38 pm-2:37 pm

1 stop12h 59m

San Juan Luis Munoz Marin Intl

Cmt 5/9

12:50 pm-11:59 pm

1 stop14h 09m

$357

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Cum 4/24

11:16 pm-11:35 am

1 stop33h 19m

San Juan Luis Munoz Marin Intl

Pzt 5/4

7:17 pm-4:54 pm

2 stops24h 37m

$358

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sal 3/10

10:40 pm-2:17 pm

1 stop12h 37m

San Juan Luis Munoz Marin Intl

Sal 3/17

5:19 am-11:16 pm

1 stop20h 57m

$359

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Cmt 5/2

10:38 pm-2:08 pm

1 stop12h 30m

San Juan Luis Munoz Marin Intl

Çar 5/6

5:01 am-11:50 pm

2 stops21h 49m

$360

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Cum 5/15

10:38 pm-2:08 pm

1 stop12h 30m

San Juan Luis Munoz Marin Intl

Per 5/21

8:55 pm-10:17 am

1 stop16h 22m

$361

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 $440.

How far in advance should I book a flight 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 $487 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 $422 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 12m

Direct flights

None
The fastest flight from San Francisco to San Juan takes 9h 12m
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

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

    San Francisco and San Juan are 3619.0 mi apart from one another. In terms of flight time, this usually takes a little over 9h 12m.

  • 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 $160Free CancellationRating
5.7
3,041 reviews
Search Frontier flights
DeltaPriceFrom $172Free CancellationRating
7.9
8,243 reviews
Search Delta flights
Sun Country AirPriceFrom $222Free CancellationRating
6.8
340 reviews
Search Sun Country Air flights
JetBluePriceFrom $271Free CancellationRating
7.2
2,896 reviews
Search JetBlue flights
Alaska AirlinesPriceFrom $329Free CancellationRating
8.0
11,964 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $359Free CancellationRating
7.4
9,350 reviews
Search United Airlines flights
American AirlinesPriceFrom $359Free CancellationRating
7.2
11,355 reviews
Search American Airlines flights
SouthwestPriceFrom $398Free CancellationRating
8.0
4,302 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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1 adult
Cmt 3/28
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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