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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.
Multiple Airlines Logo
10:38 pm - 7:14 pm
SFO
-
SJU
17h 36m
1 stop
Multiple Airlines Logo
3:21 am - 10:31 pm
SJU
-
SFO
22h 10m
2 stops
$365Multiple Airlines
Sat, Apr 25 - Thu, Apr 30
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
Multiple Airlines Logo
10:38 pm - 2:06 pm
SFO
-
SJU
12h 28m
2 stops
Multiple Airlines Logo
9:54 am - 4:54 pm
SJU
-
SFO
34h 00m
1 stop
$367Multiple Airlines
Mon, May 4 - Fri, May 8
Multiple Airlines Logo
10:38 pm - 7:14 pm
SFO
-
SJU
17h 36m
1 stop
Multiple Airlines Logo
11:30 am - 11:25 pm
SJU
-
SFO
38h 55m
2 stops
$368Multiple Airlines
Wed, Apr 15 - Tue, Apr 21
Frontier Logo
10:03 pm - 5:59 pm
SFO
-
SJU
16h 56m
2 stops
Frontier Logo
3:23 pm - 5:34 pm
SJU
-
SFO
29h 11m
1 stop
$369Frontier
Mon, Apr 13 - Fri, Apr 17
Frontier Logo
8:14 pm - 12:21 pm
SFO
-
SJU
37h 07m
2 stops
Frontier Logo
3:23 pm - 5:34 pm
SJU
-
SFO
29h 11m
1 stop
$371Frontier
Fri, Apr 10 - Fri, Apr 17
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
Multiple Airlines Logo
10:38 pm - 7:14 pm
SFO
-
SJU
17h 36m
1 stop
Multiple Airlines Logo
9:54 am - 5:34 pm
SJU
-
SFO
34h 40m
1 stop
$373Multiple Airlines
Sun, Apr 26 - Sun, May 3
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
$374Multiple Airlines
Sat, May 9 - Mon, May 18
Multiple Airlines Logo
10:03 pm - 7:50 pm
SFO
-
SJU
18h 47m
1 stop
Multiple Airlines Logo
2:59 am - 5:34 pm
SJU
-
SFO
17h 35m
2 stops
$375Multiple Airlines
Mon, Apr 13 - Sun, Apr 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
Mar 23
SFO10:38 pmSan Francisco
12h 39m
1 stop
SJU2:17 pmSan Juan Luis Munoz Marin Intl
Apr 6
SJU6:00 amSan Juan Luis Munoz Marin Intl
16h 19m
1 stop
SFO7:19 pmSan Francisco
$366
Frontier
Apr 13
SFO10:03 pmSan Francisco
16h 56m
2 stops
SJU5:59 pmSan Juan Luis Munoz Marin Intl
Apr 17
SJU3:23 pmSan Juan Luis Munoz Marin Intl
29h 11m
1 stop
SFO5:34 pmSan Francisco
$369
Frontier
Apr 10
SFO8:14 pmSan Francisco
37h 07m
2 stops
SJU12:21 pmSan Juan Luis Munoz Marin Intl
Apr 17
SJU3:23 pmSan Juan Luis Munoz Marin Intl
29h 11m
1 stop
SFO5:34 pmSan Francisco
$371

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
Apr 22
SFO7:00 amSan Francisco
10h 51m
1 stop
SJU8:51 pmSan Juan Luis Munoz Marin Intl
Apr 29
SJU11:38 amSan Juan Luis Munoz Marin Intl
11h 34m
1 stop
SFO8:12 pmSan Francisco
$415
American Airlines
Aug 19
SFO7:58 amSan Francisco
12h 42m
2 stops
SJU11:40 pmSan Juan Luis Munoz Marin Intl
Aug 23
SJU10:32 amSan Juan Luis Munoz Marin Intl
15h 26m
1 stop
SFO10:58 pmSan Francisco
$418
American Airlines
Mar 16
SFO1:20 pmSan Francisco
18h 36m
1 stop
SJU10:56 amSan Juan Luis Munoz Marin Intl
Apr 21
SJU6:00 amSan Juan Luis Munoz Marin Intl
18h 19m
1 stop
SFO9:19 pmSan Francisco
$433

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 March 11, 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

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sat 4/25

10:38 pm-7:14 pm

1 stop17h 36m

San Juan Luis Munoz Marin Intl

Thu 4/30

3:21 am-10:31 pm

2 stops22h 10m

$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

Mon 5/4

10:38 pm-2:06 pm

2 stops12h 28m

San Juan Luis Munoz Marin Intl

Fri 5/8

9:54 am-4:54 pm

1 stop34h 00m

$367

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Wed 4/15

10:38 pm-7:14 pm

1 stop17h 36m

San Juan Luis Munoz Marin Intl

Tue 4/21

11:30 am-11:25 pm

2 stops38h 55m

$368

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Mon 4/13

10:03 pm-5:59 pm

2 stops16h 56m

San Juan Luis Munoz Marin Intl

Fri 4/17

3:23 pm-5:34 pm

1 stop29h 11m

$369

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Fri 4/10

8:14 pm-12:21 pm

2 stops37h 07m

San Juan Luis Munoz Marin Intl

Fri 4/17

3:23 pm-5:34 pm

1 stop29h 11m

$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

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sun 4/26

10:38 pm-7:14 pm

1 stop17h 36m

San Juan Luis Munoz Marin Intl

Sun 5/3

9:54 am-5:34 pm

1 stop34h 40m

$373
Quickest round-trip

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sat 5/9

10:38 pm-2:08 pm

1 stop12h 30m

San Juan Luis Munoz Marin Intl

Mon 5/18

12:15 pm-11:56 pm

1 stop14h 41m

$374

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 4/19

2:59 am-5:34 pm

2 stops17h 35m

$375

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 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 October is also cheap. Prices for this month can be found on momondo for an average of $441.

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 $488 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 $430 on momondo.

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

As of March 2026, prices for San Francisco to San Juan Luis Munoz Marin Intl Airport flights are approximately 14% 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 11m

Direct flights

None
The fastest flight from San Francisco to San Juan Luis Munoz Marin Intl Airport takes 9h 11m
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

  • 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 11m, 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 $154Free CancellationRating
5.7
3,035 reviews
Search Frontier flights
DeltaPriceFrom $172Free CancellationRating
7.9
8,277 reviews
Search Delta flights
Sun Country AirPriceFrom $222Free CancellationRating
6.8
341 reviews
Search Sun Country Air flights
JetBluePriceFrom $272Free CancellationRating
7.2
2,900 reviews
Search JetBlue flights
Alaska AirlinesPriceFrom $329Free CancellationRating
8.0
12,025 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $359Free CancellationRating
7.4
9,413 reviews
Search United Airlines flights
American AirlinesPriceFrom $359Free CancellationRating
7.1
11,416 reviews
Search American Airlines flights
SouthwestPriceFrom $398Free CancellationRating
8.0
4,317 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
Rio Grande
Humacao
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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