HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Luis Munoz Marin Intl

$178+ Cheap flights from Fremont, CA to Luis Munoz Marin Intl (SJU)

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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SJU
Jan 16 — Jan 231
Fri 1/16
Fri 1/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Fremont to Luis Munoz Marin Intl 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.

Cheapflights Tip: The best prices from Fremont to San Juan Luis Munoz Marin Intl are usually found in May or October, booked 22 days in advance, depart on a Tuesday or Sunday and return on a Saturday

Cheap flight deals from Fremont to Luis Munoz Marin Intl

Cheapest flights from Fremont to Luis Munoz Marin Intl
Explore the most affordable flight options available from Fremont to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 17, 2025.

This Delta deal was found by Cheapflights users on 12/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:00 amSFO - SJU
1 stop13h 20mDelta
Thu 1/153:20 pmSJU - SFO
1 stop12h 05mDelta
Deal found 12/15$392
This Delta deal was found by Cheapflights users on 12/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:45 pmSFO - SJU
1 stop13h 02mDelta
Fri 1/166:15 amSJU - SFO
1 stop15h 28mDelta
Deal found 12/15$415
This Trip.com deal was found by Cheapflights users on 12/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2911:20 pmSFO - SJU
1 stop11h 41mFrontier
Tue 1/67:05 pmSJU - SFO
2 stops26h 54mFrontier
Deal found 12/15$418
This Delta deal was found by Cheapflights users on 12/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/228:00 amSFO - SJU
1 stop9h 09mDelta
Mon 12/297:30 amSJU - SFO
1 stop14h 29mDelta
Deal found 12/15$458
This Trip.com deal was found by Cheapflights users on 12/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3011:20 pmSFO - SJU
1 stop11h 36mFrontier
Tue 1/67:05 pmSJU - SFO
2 stops24h 01mFrontier
Deal found 12/15$461
This Delta deal was found by Cheapflights users on 12/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/218:00 amSFO - SJU
1 stop11h 20mDelta
Mon 12/297:30 amSJU - SFO
1 stop14h 29mDelta
Deal found 12/15$462
This Delta deal was found by Cheapflights users on 12/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/177:00 amSFO - SJU
1 stop12h 59mDelta
Wed 1/147:00 amSJU - SFO
1 stop13h 03mDelta
Deal found 12/15$476
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Wed 12/317:02 amSFO - SJU
1 stop10h 24mUnited Airlines
Tue 1/133:46 pmSJU - SFO
1 stop12h 13mUnited Airlines
Deal found 12/15$482
This American Airlines deal was found by Cheapflights users on 12/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/155:00 pmSFO - SJU
1 stop17h 44mAmerican Airlines
Sun 12/216:44 amSJU - SFO
1 stop18h 18mAmerican Airlines
Deal found 12/15$489
This JetBlue deal was found by Cheapflights users on 12/15. 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.
Tue 12/307:30 amSFO - SJU
1 stop10h 55mJetBlue
Tue 1/136:05 amSJU - SFO
1 stop12h 07mJetBlue
Deal found 12/15$498
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/165:07 pmSFO - SJU
2 stops15h 51mDelta
Wed 12/246:30 amSJU - SFO
2 stops13h 30mDelta
Deal found 12/16$499
This Delta deal was found by Cheapflights users on 12/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/234:55 pmSFO - SJU
2 stops16h 02mDelta
Mon 12/296:30 amSJU - SFO
2 stops13h 34mDelta
Deal found 12/15$501

Find flight deals from Fremont to Luis Munoz Marin Intl

Keep the following information in mind while searching for Fremont to Luis Munoz Marin Intl flight deals. Data was last updated December 17, 2025.

Round-trip from

$308
(Trip.com)

One-way from

$178
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$595
From Fremont to San Juan Luis Munoz Marin Intl
Search Deals
One-way flight from Fremont to San Juan Luis Munoz Marin Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fremont to Luis Munoz Marin Intl 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 December 17, 2025.
Use the filters below to find and compare flights from Fremont to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fremont

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Tue 2/24

10:39 am-12:59 am

1 stop10h 20m

San Juan Luis Munoz Marin Intl

Wed 3/11

4:15 am-4:42 pm

1 stop15h 27m

$318

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Mon 3/23

11:59 pm-1:38 pm

1 stop10h 39m

San Juan Luis Munoz Marin Intl

Sun 3/29

3:26 am-2:12 pm

1 stop13h 46m

$318

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Wed 2/25

10:39 am-12:59 am

1 stop10h 20m

San Juan Luis Munoz Marin Intl

Wed 3/4

5:12 pm-11:58 pm

1 stop10h 46m

$341

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Fri 5/1

11:25 pm-1:20 pm

1 stop10h 55m

San Juan Luis Munoz Marin Intl

Tue 5/5

5:05 am-7:50 pm

2 stops17h 45m

$361

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Mon 1/26

8:26 am-11:48 pm

1 stop11h 22m

San Juan Luis Munoz Marin Intl

Sat 1/31

8:15 am-5:15 pm

1 stop13h 00m

$364

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Sun 1/25

7:00 am-11:50 pm

1 stop12h 50m

San Juan Luis Munoz Marin Intl

Fri 1/30

8:15 am-5:15 pm

1 stop13h 00m

$364

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Wed 4/29

11:59 am-1:59 am

1 stop11h 00m

San Juan Luis Munoz Marin Intl

Mon 5/4

4:25 pm-11:55 pm

1 stop10h 30m

$364

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Mon 1/12

7:15 pm-1:05 pm

2 stops13h 50m

San Juan Luis Munoz Marin Intl

Fri 1/23

6:09 am-7:23 pm

2 stops17h 14m

$369

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Fri 1/9

7:15 pm-1:04 pm

2 stops13h 49m

San Juan Luis Munoz Marin Intl

Fri 1/23

6:09 am-7:23 pm

2 stops17h 14m

$369

San FranciscoSan Juan

SFO - SJU

SFOSJU

San Francisco

Wed 1/21

7:00 pm-4:50 pm

2 stops17h 50m

San Juan Luis Munoz Marin Intl

Fri 1/30

7:00 am-2:47 pm

1 stop11h 47m

$369

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 20 results
1
2

Best time to book a flight from Fremont to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl 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 San Juan Luis Munoz Marin Intl Airport

How far ahead should I book a flight from Fremont to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Fremont to Luis Munoz Marin Intl. Price data was last updated on December 12, 2025.

The best time to book flights from Fremont to San Juan Luis Munoz Marin Intl Airport is 22 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 Fremont to San Juan Luis Munoz Marin Intl Airport?

Currently, December is the cheapest month in which you can book a flight from Fremont to San Juan Luis Munoz Marin Intl Airport (average of $169). Flying from Fremont to San Juan Luis Munoz Marin Intl Airport in October is currently the most expensive (average of $315). 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 SJU?

Find hourly flight availability from Fremont to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 17, 2025.

One of the essential ways to save on airfare from Fremont to San Juan Luis Munoz Marin Intl Airport is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 10% on airfare.

What is the cheapest day to fly from Fremont to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Fremont to Luis Munoz Marin Intl. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Fremont to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Thursday afternoons 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.

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated December 17, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Fremont to San Juan Luis Munoz Marin Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
9,092 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
11,049 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
JetBlue
7.2
Good
2,895 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Frontier
5.8
Fair
3,082 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

  • How long is the flight from Fremont to San Juan Luis Munoz Marin Intl Airport?

    Departing from Fremont to San Juan Luis Munoz Marin Intl Airport will take you 10h 20m. The distance from Fremont to San Juan Luis Munoz Marin Intl Airport is about 3623 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Fremont to San Juan Luis Munoz Marin Intl Airport one-way?

    $85 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $164 and $174, respectively.

  • Can I find deals for flights from Fremont to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Fremont to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Fremont to Luis Munoz Marin Intl?

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

  • Can I find deals for business class flights from Fremont to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Fremont to Luis Munoz Marin Intl 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 San Juan Luis Munoz Marin Intl Airport?

    Currently, December is the cheapest month in which you can book a flight from Fremont to San Juan Luis Munoz Marin Intl Airport (average of $169). Flying from Fremont to San Juan Luis Munoz Marin Intl Airport in October is currently the most expensive (average of $315). 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

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Dorado
Fajardo
Rio Grande
Humacao
Luquillo
Bayamón

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 Luis Munoz Marin Intl

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
Ontario to Luis Munoz Marin Intl flights
San Diego to Luis Munoz Marin Intl flights
Las Vegas to Luis Munoz Marin Intl flights
Sacramento to Luis Munoz Marin Intl flights
Santa Ana to Luis Munoz Marin Intl flights
San Jose to Luis Munoz Marin Intl flights
Burbank to Luis Munoz Marin Intl flights
San Luis Obispo to Luis Munoz Marin Intl flights
Oakland to Luis Munoz Marin Intl flights
Reno to Luis Munoz Marin Intl flights
Fresno to Luis Munoz Marin Intl flights
Palm Springs to Luis Munoz Marin Intl flights
Long Beach to Luis Munoz Marin Intl flights
Medford to Luis Munoz Marin Intl flights
Santa Rosa to Luis Munoz Marin Intl flights
Merced to Luis Munoz Marin Intl flights

Top 8 airlines flying from Fremont to Luis Munoz Marin Intl

Discover the top 8 airlines that operate flights from Fremont to Luis Munoz Marin Intl. 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 December 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$160Average$339FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$232Average$361FlexibilityNo cancel feeOn-time65%
DeltaCheapest$240Average$481FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$286Average$914FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$298Average$545FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$321Average$483FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$349Average$588FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$383Average$579FlexibilityNo 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.