HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Puerto Rico

$149+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SJU
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Fremont to Puerto Rico with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 17, 2025.

Round-trip from

$298
(Frontier)

One-way from

$156
(CheapOair)

Popular in

December

Cheapest in

September

Average price

$480
From Fremont to Puerto Rico
Search Deals
One-way flight from Fremont to Puerto Rico
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($49 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 17, 2025.

This Frontier deal was found by Cheapflights users on 4/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2310:07 pmSFO - SJU
1 stop12h 25mFrontier
Fri 5/210:46 amSJU - SFO
1 stop14h 36mFrontier
Deal found 4/16$298
This Booking.com deal was found by Cheapflights users on 4/17. 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.
Thu 5/89:59 pmSFO - BQN
1 stop24h 58mFrontier
Wed 5/142:47 amBQN - SFO
1 stop13h 28mFrontier
Deal found 4/17$318
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Sat 9/137:20 pmSFO - SJU
2 stops12h 55mAmerican Airlines
Sat 9/203:58 pmSJU - SFO
1 stop9h 41mAmerican Airlines
Deal found 4/17$349
This CheapOair deal was found by Cheapflights users on 4/16. 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.
Wed 5/149:59 pmSFO - PSE
1 stop31h 57mFrontier
Sun 5/189:46 amPSE - SFO
1 stop30h 29mFrontier
Deal found 4/16$349
This Delta deal was found by Cheapflights users on 4/17. 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.
Tue 11/189:00 amSFO - SJU
1 stop10h 17mDelta
Thu 11/277:30 amSJU - SFO
2 stops18h 28mDelta
Deal found 4/17$359
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Fri 5/212:10 amSFO - SJU
1 stop11h 34mUnited Airlines
Thu 5/81:05 amSJU - SFO
1 stop11h 29mUnited Airlines
Deal found 4/16$367
This Trip.com deal was found by Cheapflights users on 4/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2110:39 pmSFO - SJU
2 stops18h 01mMultiple Airlines
Wed 4/239:30 pmSJU - SFO
1 stop18h 49mMultiple Airlines
Deal found 4/17$370
This JetBlue deal was found by Cheapflights users on 4/16. 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 5/1610:45 pmSFO - SJU
1 stop14h 30mJetBlue
Sat 5/243:33 amSJU - SFO
1 stop11h 28mJetBlue
Deal found 4/16$401
This JetBlue deal was found by Cheapflights users on 4/16. 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 5/293:50 pmSFO - BQN
1 stop13h 59mJetBlue
Sun 6/14:28 pmBQN - SFO
1 stop10h 31mJetBlue
Deal found 4/16$440
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/36:45 amSFO - BQN
2 stops13h 24mUnited Airlines
Sat 5/1012:15 amBQN - SFO
1 stop13h 07mUnited Airlines
Deal found 4/16$490
This Southwest deal was found by Cheapflights users on 4/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/239:05 pmSFO - SJU
1 stop12h 10mSouthwest
Mon 10/275:50 amSJU - SFO
1 stop11h 35mSouthwest
Deal found 4/15$492
This JetBlue deal was found by Cheapflights users on 4/17. 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.
Tue 7/2211:55 amSFO - PSE
1 stop11h 03mJetBlue
Sat 7/261:35 amPSE - SFO
1 stop11h 45mJetBlue
Deal found 4/17$753

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 April 17, 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 FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sat 5/3

9:59 pm-1:29 pm

1 stop12h 30m

San Juan Luis Munoz Marin Intl

Fri 5/9

10:46 am-10:22 pm

1 stop14h 36m

$298

San FranciscoAguadilla

SFO - BQN

SFOBQN

San Francisco

Thu 5/8

9:59 pm-1:57 am

1 stop24h 58m

Aguadilla Borinquen

Wed 5/14

2:47 am-1:15 pm

1 stop13h 28m

$318

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sat 9/13

5:01 pm-2:19 pm

1 stop18h 18m

San Juan Luis Munoz Marin Intl

Sat 9/20

3:42 pm-12:16 am

1 stop11h 34m

$349

San FranciscoPonce

SFO - PSE

SFOPSE

San Francisco

Wed 5/14

9:59 pm-8:56 am

1 stop31h 57m

Ponce Mercedita

Sun 5/18

9:46 am-1:15 pm

1 stop30h 29m

$349

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Tue 10/14

9:00 am-10:21 pm

1 stop10h 21m

San Juan Luis Munoz Marin Intl

Tue 10/21

2:28 pm-12:46 am

1 stop13h 18m

$359

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Fri 5/2

12:10 am-2:44 pm

1 stop11h 34m

San Juan Luis Munoz Marin Intl

Thu 5/8

1:05 am-9:34 am

1 stop11h 29m

$367

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sun 8/10

10:10 pm-1:05 pm

1 stop11h 55m

San Juan Luis Munoz Marin Intl

Thu 8/21

1:10 pm-11:36 pm

1 stop13h 26m

$370

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Wed 5/7

10:27 am-5:12 am

2 stops15h 45m

San Juan Luis Munoz Marin Intl

Sun 5/11

6:00 am-1:15 pm

1 stop10h 15m

$426

San FranciscoAguadilla

SFO - BQN

SFOBQN

San Francisco

Thu 5/29

3:50 pm-8:49 am

1 stop13h 59m

Aguadilla Borinquen

Sun 6/1

4:28 pm-11:59 pm

1 stop10h 31m

$440

San FranciscoAguadilla

SFO - BQN

SFOBQN

San Francisco

Sat 5/3

6:45 am-11:09 pm

2 stops13h 24m

Aguadilla Borinquen

Sat 5/10

12:15 am-10:22 am

1 stop13h 07m

$490

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 29 results
1
2
3

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 December is currently the most expensive (average of $336). 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 April 17, 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 April 17, 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
9,887 reviews

Food

7.1

Comfort

7.9

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,887 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Food

7.1

Comfort

7.9

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Food

7.1

Comfort

7.9

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,916 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Food

7.1

Comfort

7.9

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Food

7.1

Comfort

7.9

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
JetBlue
7.3
Good
2,926 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Food

7.1

Comfort

7.9

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 $156. However, be on the lookout for offers from Delta 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 - Ponce Mercedita or San Francisco - Aguadilla Borinquen 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 December is currently the most expensive (average of $336). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Fremont to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Luis Munoz Marin Intl flights
San Francisco to Luis Munoz Marin Intl flights
Los Angeles to Punta Cana flights
Los Angeles to Montego Bay flights
Los Angeles to Nassau flights
Ontario to Luis Munoz Marin Intl flights
San Diego to Luis Munoz Marin Intl flights
Burbank to Luis Munoz Marin Intl flights
San Francisco to Nassau flights
San Francisco to Punta Cana flights
San Francisco to Montego Bay flights
Los Angeles to Santo Domingo flights
Los Angeles to Oranjestad flights
Las Vegas to Luis Munoz Marin Intl flights
Los Angeles to Saint Thomas Island flights
Los Angeles to Simpson Bay flights
Ontario to Punta Cana flights
Los Angeles to Providenciales flights
Ontario to Montego Bay flights
Burbank to Punta Cana flights
Santa Ana to Luis Munoz Marin Intl flights
Los Angeles to Castries flights
Las Vegas to Punta Cana flights
Sacramento to Luis Munoz Marin Intl flights
San Jose to Luis Munoz Marin Intl flights
Los Angeles to George Town flights
Santa Ana to Montego Bay flights
Los Angeles to Willemstad flights
Los Angeles to Puerto Plata flights
San Francisco to Saint Thomas Island flights
Los Angeles to Bridgetown flights
Ontario to Nassau flights
Los Angeles to Kingston flights
Las Vegas to Montego Bay flights
San Diego to Punta Cana flights
Ontario to Santo Domingo flights
Los Angeles to Port of Spain flights
San Francisco to Bridgetown flights
San Francisco to Simpson Bay flights
Oakland to Luis Munoz Marin Intl flights
San Francisco to Oranjestad flights
Ontario to Port of Spain flights
San Francisco to Providenciales flights
Ontario to Providenciales flights
Burbank to Montego Bay flights
Ontario to Oranjestad flights
San Francisco to Willemstad flights
San Diego to Nassau flights
San Francisco to George Town flights
San Francisco to Santo Domingo flights

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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$160Average$300FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$238Average$422FlexibilityNo cancel feeOn-time65%
DeltaCheapest$253Average$649FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$277Average$518FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$292Average$886FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$294Average$581FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$300Average$555FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$383Average$614FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.