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$162+ Cheap flights from San Francisco (SFO) to San Juan

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SJU
Mar 4 — Mar 111
Tue 3/4
Tue 3/11
1 adult, Economy
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The best prices from San Francisco to San Juan are usually found in September or January, booked 76 days in advance, depart on a Tuesday or Sunday and return on a Saturday

Cheap flight deals from San Francisco to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 27, 2025.

Round-trip from

$324
(JetBlue)

One-way from

$162
(JetBlue)

Popular in

December

Cheapest in

September

Average price

$468
From San Francisco to San Juan
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One-way flight from San Francisco to San Juan
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Highest demand for flights based on searches. 5% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from San Francisco to San Juan

Cheapest flights from San Francisco to San Juan
Explore the most affordable flight options available from San Francisco to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 27, 2025.

This JetBlue deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/236:15 amSFO - SJU
1 stop12h 47mJetBlue
Tue 4/294:00 amSJU - SFO
1 stop12h 05mJetBlue
Deal found 2/26$324
This American Airlines deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2112:21 amSFO - SJU
1 stop17h 07mAmerican Airlines
Wed 4/3011:50 amSJU - SFO
2 stops12h 15mAmerican Airlines
Deal found 2/26$348
This United Airlines deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2212:08 amSFO - SJU
1 stop11h 36mUnited Airlines
Mon 4/281:05 amSJU - SFO
1 stop12h 17mUnited Airlines
Deal found 2/26$349
This Gotogate deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/89:49 pmSFO - SJU
1 stop12h 23mFrontier
Sun 7/133:58 amSJU - SFO
1 stop12h 30mFrontier
Deal found 2/26$431
This Mytrip deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/186:20 pmSFO - SJU
1 stop17h 45mMultiple Airlines
Fri 4/253:56 amSJU - SFO
1 stop12h 23mMultiple Airlines
Deal found 2/26$445
This Delta deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/107:11 pmSFO - SJU
2 stops13h 33mDelta
Tue 3/256:15 amSJU - SFO
2 stops17h 34mDelta
Deal found 2/26$465
This Sun Country Air deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/184:55 pmSFO - SJU
1 stop19h 10mSun Country Air
Sat 4/264:05 pmSJU - SFO
1 stop28h 02mSun Country Air
Deal found 2/27$474
This Southwest deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/66:00 amSFO - SJU
2 stops13h 30mSouthwest
Sun 5/112:25 pmSJU - SFO
2 stops13h 25mSouthwest
Deal found 2/26$532
This Alaska Airlines deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/267:35 amSFO - SJU
2 stops18h 25mAlaska Airlines
Wed 4/26:05 amSJU - SFO
2 stops28h 59mAlaska Airlines
Deal found 2/26$554

Find flights from San Francisco to San Juan within your budget

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, Cheapflights users made 2,558,603 searches. Data last updated February 27, 2025.

Fly from

San Francisco

Fly to

San Juan

Route

Depart

Return

Price

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Tue 3/18

11:39 pm-12:41 pm

1 stop10h 02m

San Juan Luis Munoz Marin Intl

Tue 3/25

4:12 pm-11:59 pm

1 stop10h 47m

$313

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Mon 4/21

12:21 am-8:28 pm

1 stop17h 07m

San Juan Luis Munoz Marin Intl

Wed 4/30

11:50 am-9:05 pm

2 stops12h 15m

$348

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Tue 4/22

12:08 am-2:44 pm

1 stop11h 36m

San Juan Luis Munoz Marin Intl

Tue 4/29

1:05 am-10:22 am

1 stop12h 17m

$349

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sat 3/22

11:52 pm-2:39 pm

1 stop11h 47m

San Juan Luis Munoz Marin Intl

Sat 3/29

6:00 am-10:52 pm

1 stop19h 52m

$441

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Fri 4/18

4:55 pm-3:05 pm

1 stop19h 10m

San Juan Luis Munoz Marin Intl

Fri 4/25

3:56 am-1:19 pm

1 stop12h 23m

$445

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Mon 3/10

7:11 pm-11:44 am

2 stops13h 33m

San Juan Luis Munoz Marin Intl

Tue 3/25

6:15 am-8:49 pm

2 stops17h 34m

$465

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Fri 4/18

4:55 pm-3:05 pm

1 stop19h 10m

San Juan Luis Munoz Marin Intl

Sat 4/26

4:05 pm-5:07 pm

1 stop28h 02m

$474

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Tue 5/6

6:00 am-10:30 pm

2 stops13h 30m

San Juan Luis Munoz Marin Intl

Sun 5/11

2:25 pm-12:50 am

2 stops13h 25m

$532

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Wed 3/26

7:35 am-5:00 am

2 stops18h 25m

San Juan Luis Munoz Marin Intl

Wed 4/2

6:05 am-8:04 am

2 stops28h 59m

$554

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Tue 4/8

11:44 am-2:50 am

1 stop12h 06m

$162

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/26

Showing 1-10 of 19 results
1
2

Best time to book a flight from San Francisco to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from San Francisco to San Juan

Get recent, data-driven insights about flights from San Francisco to San Juan including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to San Juan. Price data was last updated on February 25, 2025.

The best time to book flights from San Francisco to San Juan is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Francisco to San Juan?

Currently, September is the cheapest month in which you can book a flight from San Francisco to San Juan (average of $254). Flying from San Francisco to San Juan in March is currently the most expensive (average of $358). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to SJU?

Find hourly flight availability from San Francisco to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 27, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 32% on flights from San Francisco to San Juan by exploring options for tickets at noon.

What is the cheapest day to fly from San Francisco to San Juan?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to San Juan. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Francisco to San Juan flight should consider departing on Thursday at noon when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Juan. Reviews last updated February 27, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from San Francisco to San Juan have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,362 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Boarding

8.2

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Southwest
8.1
Very good
4,362 reviews
Southwest
8.1
Very good
4,362 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Boarding

8.2

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Alaska Airlines
8.0
Very good
9,717 reviews
Southwest
8.1
Very good
4,362 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Boarding

8.2

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Delta
8.0
Very good
8,140 reviews
Southwest
8.1
Very good
4,362 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Boarding

8.2

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

JetBlue
7.4
Good
3,035 reviews
Southwest
8.1
Very good
4,362 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Boarding

8.2

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

United Airlines
7.4
Good
8,723 reviews
Southwest
8.1
Very good
4,362 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Boarding

8.2

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Francisco to San Juan?

    If you book a flight to San Juan from San Francisco, you will be flying from San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.8 mi from the center of San Francisco. There are 0 flights from San Francisco to San Juan per day from 9 different airlines.

  • What are the cheapest airlines flying from San Francisco to San Juan round-trip?

    Cheapflights users have booked flights from San Francisco to San Juan round-trip from $324. Other airlines that can offer you cheap pricing are American Airlines, from $348, and United Airlines, from $349. These flights start at 39% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from San Francisco to San Juan one-way?

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at $162. United Airlines flights start at $175 while deals on American Airlines start at $200 one-way.

  • Where are the most common layover locations when flying from San Francisco to San Juan?

    San Francisco to San Juan flights have a layover in Fort Lauderdale most of the time. Charlotte follows Fort Lauderdale in terms of the most common layover location on San Francisco to San Juan flights. Miami follows Charlotte in terms of the most frequent layover location on San Francisco to San Juan flights.

  • What are some popular things to do or see while on a layover in Fort Lauderdale?

    Las Olas Beach, Port Everglades, and Fort Lauderdale Beach Park are the most popular attractions in Fort Lauderdale if you're in need of something to do during your layover. Las Olas Beach, Port Everglades, and Fort Lauderdale Beach Park can be accessed by traveling approximately 4.1 mi, 2.1 mi, and 4.2 mi, respectively from Fort Lauderdale. Travelers can book a car rental at Fort Lauderdale for about $27 per day to make their sightseeing more efficient.

  • What are some popular points of interest to see during a layover in Charlotte?

    The majority of Charlotte visitors spend their time at Carowind, Mint Museum Uptown, and North Carolina Blumenthal Performing Arts Center. Those on a layover in Charlotte interested in visiting Carowind, Mint Museum Uptown, or North Carolina Blumenthal Performing Arts Center can do so by traveling 8.2 mi, 5.4 mi, and 5.8 mi, respectively from Charlotte Douglas. Those looking to explore during their layover in Charlotte can rent a car from Charlotte Douglas for about $44 per day.

  • What are points of interest worth seeing during a layover in Miami?

    If you're on a layover in Miami and looking for things to do, consider visiting Wynwood Art District, Bayside Marketplace, or Bayfront Park. Wynwood Art District, Bayside Marketplace, and Bayfront Park are located about 5.5 mi, 6.4 mi, and 6.4 mi, respectively from Miami. Those landing in Miami looking to spend some time exploring during their layover can rent a car for about $25 per day.

  • Where are the least popular layover locations for San Francisco to San Juan flights?

    The least popular layover on flights from San Francisco to San Juan is New York. Denver is the second least popular location for layovers on flights from San Francisco to San Juan. Atlanta follows Denver in terms of the least frequent layover locations on San Francisco to San Juan flights.

  • Can I find deals for flights from San Francisco to San Juan that include hotel bookings?

    Yes. In addition to deals on San Francisco to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to San Juan.

  • Can I find deals for business class flights from San Francisco to San Juan?

    Yes. Cheapflights offers flight deals from San Francisco to San Juan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to San Juan?

    Currently, September is the cheapest month in which you can book a flight from San Francisco to San Juan (average of $254). Flying from San Francisco to San Juan in March is currently the most expensive (average of $358). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 9 airlines flying from San Francisco to San Juan

Discover the top 9 airlines that operate flights from San Francisco to San Juan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$147Average$300FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$159Average$520FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$286Average$567FlexibilityNo cancel feeOn-time69%
Spirit AirlinesCheapest$296Average$648FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$321Average$551FlexibilityNo cancel feeOn-time71%
DeltaCheapest$333Average$700FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$334Average$886FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$575Average$692FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$612Average$719FlexibilityNo cancel feeOn-time75%
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