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Puerto Rico

$141+ Cheap flights from Fremont, CA to Puerto Rico

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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SJU
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
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Cheap flight deals from Fremont to Puerto Rico

Keep the following information in mind while searching for Fremont to Puerto Rico flight deals. Data was last updated June 16, 2025.

Round-trip from

$321
(CheapOair)

One-way from

$141
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$573
From Fremont to Puerto Rico
Search Deals
One-way flight from Fremont to Puerto Rico
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Fremont to Puerto Rico

Cheapest flights from Fremont to Puerto Rico
Explore the most affordable flight options available from Fremont to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2025.

This CheapOair deal was found by Cheapflights users on 6/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/278:53 pmSFO - PSE
1 stop9h 22mFrontier
Sat 7/510:01 amPSE - SFO
1 stop27h 24mFrontier
Deal found 6/15$321
This CheapOair deal was found by Cheapflights users on 6/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/128:53 pmSFO - SJU
1 stop26h 46mFrontier
Thu 7/173:40 amSJU - SFO
1 stop9h 45mFrontier
Deal found 6/15$327
This Booking.com deal was found by Cheapflights users on 6/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/128:53 pmSFO - BQN
1 stop26h 08mFrontier
Sat 8/162:59 amBQN - SFO
1 stop10h 26mFrontier
Deal found 6/15$355
This JetBlue deal was found by Cheapflights users on 6/14. 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.
Fri 10/318:15 amSFO - SJU
1 stop10h 05mJetBlue
Tue 11/111:59 amSJU - SFO
1 stop15h 40mJetBlue
Deal found 6/14$358
This Delta deal was found by Cheapflights users on 6/14. 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.
Sat 8/307:29 amSFO - SJU
1 stop11h 38mDelta
Sat 9/67:30 amSJU - SFO
1 stop14h 22mDelta
Deal found 6/14$369
This American Airlines deal was found by Cheapflights users on 6/14. 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.
Sun 8/317:00 amSFO - SJU
2 stops13h 59mAmerican Airlines
Wed 10/16:10 amSJU - SFO
2 stops17h 11mAmerican Airlines
Deal found 6/14$376
This United Airlines deal was found by Cheapflights users on 6/14. 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.
Sat 8/3011:10 pmSFO - SJU
1 stop12h 34mUnited Airlines
Thu 9/41:05 amSJU - SFO
1 stop11h 07mUnited Airlines
Deal found 6/14$382
This Southwest deal was found by Cheapflights users on 6/14. 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.
Thu 10/96:20 pmSFO - SJU
2 stops11h 45mSouthwest
Thu 10/235:50 amSJU - SFO
1 stop11h 35mSouthwest
Deal found 6/14$432
This United Airlines deal was found by Cheapflights users on 6/15. 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 7/811:03 pmSFO - BQN
2 stops21h 06mUnited Airlines
Tue 7/1512:15 amBQN - SFO
2 stops14h 49mUnited Airlines
Deal found 6/15$502
This Mytrip deal was found by Cheapflights users on 6/14. 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.
Sun 7/1311:59 pmSFO - SJU
3 stops35h 46mMultiple Airlines
Thu 7/171:37 amSJU - SFO
2 stops35h 24mMultiple Airlines
Deal found 6/14$503
This JetBlue deal was found by Cheapflights users on 6/14. 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 7/237:40 amSFO - PSE
1 stop13h 39mJetBlue
Mon 7/281:59 amPSE - SFO
1 stop12h 58mJetBlue
Deal found 6/14$581
This JetBlue deal was found by Cheapflights users on 6/15. 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.
Thu 7/101:10 pmSFO - BQN
1 stop10h 49mJetBlue
Thu 7/179:35 amBQN - SFO
1 stop14h 19mJetBlue
Deal found 6/15$688

Cheapflights Fare Finder

Customize your flight search to find flights from Fremont to Puerto Rico 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 June 16, 2025.
Use the filters below to find and compare flights from Fremont to Puerto Rico that are best for you.

Fly from

Fremont

Fly to

Puerto Rico

Route

Depart

Return

Price

San FranciscoPonce

SFO - PSE

SFOPSE

San Francisco

Fri 6/27

8:53 pm-9:15 am

1 stop9h 22m

Ponce Mercedita

Sat 7/5

10:01 am-10:25 am

1 stop27h 24m

$321

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sat 7/12

8:53 pm-2:39 am

1 stop26h 46m

San Juan Luis Munoz Marin Intl

Thu 7/17

3:40 am-10:25 am

1 stop9h 45m

$327

San FranciscoAguadilla

SFO - BQN

SFOBQN

San Francisco

Tue 8/12

8:53 pm-2:01 am

1 stop26h 08m

Aguadilla Borinquen

Sat 8/16

2:59 am-10:25 am

1 stop10h 26m

$355

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sat 8/30

7:29 am-10:07 pm

1 stop11h 38m

San Juan Luis Munoz Marin Intl

Sat 9/6

7:30 am-6:52 pm

1 stop14h 22m

$369

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sat 9/13

6:00 am-9:24 pm

1 stop12h 24m

San Juan Luis Munoz Marin Intl

Fri 9/19

3:03 am-11:53 am

1 stop11h 50m

$370

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sun 8/31

7:00 am-11:59 pm

2 stops13h 59m

San Juan Luis Munoz Marin Intl

Wed 10/1

6:10 am-8:21 pm

2 stops17h 11m

$376

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sat 8/30

11:10 pm-2:44 pm

1 stop12h 34m

San Juan Luis Munoz Marin Intl

Thu 9/4

1:05 am-9:12 am

1 stop11h 07m

$382

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Wed 9/10

5:55 am-10:30 pm

2 stops13h 35m

San Juan Luis Munoz Marin Intl

Mon 9/22

5:50 am-8:10 pm

1 stop17h 20m

$481

San FranciscoAguadilla

SFO - BQN

SFOBQN

San Francisco

Tue 7/8

11:03 pm-11:09 pm

2 stops21h 06m

Aguadilla Borinquen

Tue 7/15

12:15 am-12:04 pm

2 stops14h 49m

$502

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sun 7/13

11:59 pm-2:45 pm

3 stops35h 46m

San Juan Luis Munoz Marin Intl

Thu 7/17

1:37 am-10:01 am

2 stops35h 24m

$503

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 30 results
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Best time to book a flight from Fremont to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Fremont 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.

Cheapflights Insights

Everything you need to know about your flight from Fremont to Puerto Rico

What is the cheapest month to book a flight from Fremont to Puerto Rico?

Currently, September is the cheapest month in which you can book a flight from Fremont to Puerto Rico (average of $254). Flying from Fremont to Puerto Rico in June is currently the most expensive (average of $339). 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 FR8 to PR?

Find hourly flight availability from Fremont to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 16, 2025.

When flying from Fremont to Puerto Rico, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Puerto Rico by month

Plan your trip to Puerto Rico by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Puerto Rico 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 Puerto Rico when rainfall is around 2.2 in.

Temperature in Puerto Rico by month

Plan your trip to Puerto Rico by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Puerto Rico, 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 Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated June 16, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Fremont to Puerto Rico by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,285 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,963 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,798 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
JetBlue
7.3
Good
2,923 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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

  • What are the cheapest airlines to fly from Fremont to Puerto Rico one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $141. However, be on the lookout for offers from JetBlue and American Airlines, as they are both options that can get you from Fremont to Puerto Rico for a low price.

  • What are the most popular routes from Fremont to Puerto Rico?

    Most travelers choose San Francisco - San Juan Luis Munoz Marin Intl, San Francisco - Aguadilla Borinquen or San Francisco - Ponce Mercedita when deciding on the best route from Fremont to Puerto Rico.

  • Can I find deals for flights from Fremont to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Fremont to Puerto Rico flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Fremont to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Fremont to Puerto Rico.

  • Can I find deals for business class flights from Fremont to Puerto Rico?

    Yes. Cheapflights offers flight deals from Fremont to Puerto Rico 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 Fremont to Puerto Rico?

    Currently, September is the cheapest month in which you can book a flight from Fremont to Puerto Rico (average of $254). Flying from Fremont to Puerto Rico in June is currently the most expensive (average of $339). 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.

See more FAQs

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Alternative routes for Fremont to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Fremont to Puerto Rico

Discover the top 8 airlines that operate flights from Fremont to Puerto Rico. 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 June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$160Average$310FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$238Average$411FlexibilityNo cancel feeOn-time65%
DeltaCheapest$242Average$565FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$277Average$505FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$325Average$589FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$326Average$577FlexibilityNo cancel feeOn-time71%
Sun Country AirCheapest$334Average$904FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$383Average$618FlexibilityNo cancel feeOn-time63%

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