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Cheap flights from San Francisco to San Juan from $177

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 3/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
JetBlue Logo
8:00 am - 8:49 pm
SFO
-
SJU
9h 49m
1 stop
JetBlue Logo
12:15 pm - 11:56 pm
SJU
-
SFO
14h 41m
1 stop
$362JetBlue
Tue, Apr 21 - Wed, Apr 29
Multiple Airlines Logo
11:31 am - 12:19 am
SFO
-
SJU
9h 48m
1 stop
Multiple Airlines Logo
6:30 am - 10:52 pm
SJU
-
SFO
19h 22m
1 stop
$363Multiple Airlines
Wed, May 27 - Mon, Jun 1
Multiple Airlines Logo
10:38 pm - 2:13 pm
SFO
-
SJU
12h 35m
1 stop
Multiple Airlines Logo
5:01 am - 11:59 pm
SJU
-
SFO
21h 58m
1 stop
$364Multiple Airlines
Sun, May 3 - Sat, May 9
Multiple Airlines Logo
10:38 pm - 2:08 pm
SFO
-
SJU
12h 30m
1 stop
Multiple Airlines Logo
12:15 pm - 9:23 am
SJU
-
SFO
24h 08m
2 stops
$365Multiple Airlines
Sat, Apr 25 - Wed, Apr 29
Frontier Logo
10:38 pm - 2:17 pm
SFO
-
SJU
12h 39m
1 stop
Frontier Logo
6:00 am - 7:19 pm
SJU
-
SFO
16h 19m
1 stop
$366Frontier
Mon, Mar 23 - Mon, Apr 6
Frontier Logo
10:38 pm - 2:08 pm
SFO
-
SJU
12h 30m
1 stop
Frontier Logo
9:15 am - 10:52 pm
SJU
-
SFO
16h 37m
1 stop
$367Frontier
Thu, May 14 - Thu, May 21
Multiple Airlines Logo
10:03 pm - 7:50 pm
SFO
-
SJU
18h 47m
1 stop
Multiple Airlines Logo
9:54 am - 5:34 pm
SJU
-
SFO
34h 40m
1 stop
$368Multiple Airlines
Mon, Apr 13 - Sun, May 3
Multiple Airlines Logo
11:16 pm - 11:10 pm
SFO
-
SJU
20h 54m
1 stop
Multiple Airlines Logo
1:59 am - 5:34 pm
SJU
-
SFO
18h 35m
2 stops
$369Multiple Airlines
Fri, Apr 17 - Tue, Apr 21
Multiple Airlines Logo
11:16 pm - 11:29 pm
SFO
-
SJU
21h 13m
2 stops
Multiple Airlines Logo
9:54 am - 5:34 pm
SJU
-
SFO
34h 40m
1 stop
$371Multiple Airlines
Thu, Apr 23 - Thu, Apr 30
Multiple Airlines Logo
11:16 pm - 5:59 pm
SFO
-
SJU
39h 43m
2 stops
Multiple Airlines Logo
9:54 am - 5:34 pm
SJU
-
SFO
34h 40m
1 stop
$372Multiple Airlines
Sun, Apr 26 - Sun, May 3

JetBlue flights from San Francisco to San Juan

Our best JetBlue deals on San Francisco to San Juan flight tickets
JetBlue
Apr 21
SFO8:00 amSan Francisco
9h 49m
1 stop
SJU8:49 pmSan Juan Luis Munoz Marin Intl
Apr 29
SJU12:15 pmSan Juan Luis Munoz Marin Intl
14h 41m
1 stop
SFO11:56 pmSan Francisco
$362
JetBlue
May 10
SFO6:55 amSan Francisco
12h 17m
1 stop
SJU10:12 pmSan Juan Luis Munoz Marin Intl
May 11
SJU11:25 pmSan Juan Luis Munoz Marin Intl
14h 04m
1 stop
SFO10:29 amSan Francisco
$385
JetBlue
Apr 27
SFO11:05 pmSan Francisco
18h 44m
1 stop
SJU8:49 pmSan Juan Luis Munoz Marin Intl
May 5
SJU7:40 amSan Juan Luis Munoz Marin Intl
19h 16m
1 stop
SFO11:56 pmSan Francisco
$403

American Airlines flights from San Francisco to San Juan

Our best American Airlines deals on San Francisco to San Juan flight tickets
American Airlines
May 10
SFO12:30 amSan Francisco
12h 05m
1 stop
SJU3:35 pmSan Juan Luis Munoz Marin Intl
May 16
SJU7:25 amSan Juan Luis Munoz Marin Intl
17h 03m
1 stop
SFO9:28 pmSan Francisco
$390
American Airlines
Apr 15
SFO12:30 amSan Francisco
17h 21m
1 stop
SJU8:51 pmSan Juan Luis Munoz Marin Intl
Apr 17
SJU7:25 amSan Juan Luis Munoz Marin Intl
15h 47m
1 stop
SFO8:12 pmSan Francisco
$405
American Airlines
Apr 18
SFO6:29 pmSan Francisco
17h 13m
1 stop
SJU2:42 pmSan Juan Luis Munoz Marin Intl
Apr 25
SJU7:25 amSan Juan Luis Munoz Marin Intl
17h 03m
1 stop
SFO9:28 pmSan Francisco
$409

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 March 7, 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
Quickest round-trip

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Tue 4/21

8:00 am-8:49 pm

1 stop9h 49m

San Juan Luis Munoz Marin Intl

Wed 4/29

12:15 pm-11:56 pm

1 stop14h 41m

$362

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Wed 5/27

11:31 am-12:19 am

1 stop9h 48m

San Juan Luis Munoz Marin Intl

Mon 6/1

6:30 am-10:52 pm

1 stop19h 22m

$363

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sun 5/3

10:38 pm-2:13 pm

1 stop12h 35m

San Juan Luis Munoz Marin Intl

Sat 5/9

5:01 am-11:59 pm

1 stop21h 58m

$364

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sat 4/25

10:38 pm-2:08 pm

1 stop12h 30m

San Juan Luis Munoz Marin Intl

Wed 4/29

12:15 pm-9:23 am

2 stops24h 08m

$365

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Mon 3/23

10:38 pm-2:17 pm

1 stop12h 39m

San Juan Luis Munoz Marin Intl

Mon 4/6

6:00 am-7:19 pm

1 stop16h 19m

$366

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Thu 5/14

10:38 pm-2:08 pm

1 stop12h 30m

San Juan Luis Munoz Marin Intl

Thu 5/21

9:15 am-10:52 pm

1 stop16h 37m

$367

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Mon 4/13

10:03 pm-7:50 pm

1 stop18h 47m

San Juan Luis Munoz Marin Intl

Sun 5/3

9:54 am-5:34 pm

1 stop34h 40m

$368

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Fri 4/17

11:16 pm-11:10 pm

1 stop20h 54m

San Juan Luis Munoz Marin Intl

Tue 4/21

1:59 am-5:34 pm

2 stops18h 35m

$369

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Thu 4/23

11:16 pm-11:29 pm

2 stops21h 13m

San Juan Luis Munoz Marin Intl

Thu 4/30

9:54 am-5:34 pm

1 stop34h 40m

$371

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sun 4/26

11:16 pm-5:59 pm

2 stops39h 43m

San Juan Luis Munoz Marin Intl

Sun 5/3

9:54 am-5:34 pm

1 stop34h 40m

$372

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 cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in May, then October is your next best option. Flight prices from San Francisco to San Juan during October average around $441.

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 $488 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 $430 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 37m

Direct flights

None
The fastest flight from San Francisco to San Juan takes 9h 37m
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 37m.

  • 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 $154Free CancellationRating
5.7
3,039 reviews
Search Frontier flights
DeltaPriceFrom $172Free CancellationRating
7.9
8,270 reviews
Search Delta flights
Sun Country AirPriceFrom $222Free CancellationRating
6.8
339 reviews
Search Sun Country Air flights
JetBluePriceFrom $272Free CancellationRating
7.2
2,895 reviews
Search JetBlue flights
Alaska AirlinesPriceFrom $329Free CancellationRating
8.0
11,993 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $359Free CancellationRating
7.4
9,405 reviews
Search United Airlines flights
American AirlinesPriceFrom $359Free CancellationRating
7.1
11,397 reviews
Search American Airlines flights
SouthwestPriceFrom $398Free CancellationRating
8.0
4,311 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