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Fremont

$82+ Cheap flights from St. Louis (STL) to Fremont, CA

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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SFO
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Fremont are usually found in February or January, booked 76 days in advance, depart on a Thursday or Saturday and return on a Tuesday

Cheap flight deals from St. Louis to Fremont

Keep the following information in mind while searching for St. Louis to Fremont flight deals. Data was last updated September 16, 2025.

Round-trip from

$175
(Kiwi.com)

One-way from

$82
(United Airlines)

Popular in

July

Cheapest in

February

Average price

$396
From Lambert-St Louis to Fremont
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One-way flight from Lambert-St Louis to Fremont
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Highest demand for flights based on searches. 8% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Fremont

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

This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2310:17 amSTL - SFO
1 stop7h 43mFrontier
Wed 11/56:34 amSFO - STL
1 stop24h 33mFrontier
Deal found 9/15$175
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/227:52 pmSTL - SFO
1 stop20h 32mFrontier
Sun 11/28:09 pmSFO - STL
1 stop10h 58mFrontier
Deal found 9/15$182
This Southwest deal was found by Cheapflights users on 9/15. 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.
Tue 10/75:55 amSTL - SFO
1 stop5h 45mSouthwest
Wed 10/85:30 amSFO - STL
1 stop5h 50mSouthwest
Deal found 9/15$183
This Frontier deal was found by Cheapflights users on 9/13. 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.
Thu 10/27:55 pmSTL - SFO
1 stop6h 21mFrontier
Sat 10/411:00 pmSFO - STL
1 stop14h 04mFrontier
Deal found 9/13$184
This Booking.com deal was found by Cheapflights users on 9/15. 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.
Thu 9/257:55 pmSTL - SFO
1 stop14h 20mFrontier
Tue 9/307:10 amSFO - STL
1 stop23h 56mFrontier
Deal found 9/15$190
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:55 pmSTL - SFO
1 stop6h 21mFrontier
Wed 10/86:34 amSFO - STL
1 stop24h 33mFrontier
Deal found 9/13$191
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/257:55 pmSTL - SFO
1 stop6h 21mFrontier
Mon 9/297:07 pmSFO - STL
1 stop11h 59mFrontier
Deal found 9/14$192
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/254:51 pmSTL - SFO
1 stop6h 38mFrontier
Mon 10/2710:17 pmSFO - STL
2 stops8h 50mFrontier
Deal found 9/14$193
This Booking.com deal was found by Cheapflights users on 9/15. 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.
Mon 9/229:29 pmSTL - SFO
1 stop25h 52mFrontier
Thu 9/2510:37 pmSFO - STL
1 stop20h 03mFrontier
Deal found 9/15$194
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:59 pmSTL - SFO
1 stop13h 30mFrontier
Tue 10/286:28 pmSFO - STL
2 stops41h 29mFrontier
Deal found 9/15$195

Cheapflights Fare Finder

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

Fly from

St. Louis

Fly to

Fremont

Route

Depart

Return

Price

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Sat 10/18

1:45 pm-9:30 pm

2 stops9h 45m

San Francisco

Wed 10/22

3:50 pm-12:30 am

1 stop6h 40m

$188

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 10/30

5:29 pm-8:07 pm

Nonstop4h 38m

San Francisco

Sun 11/2

5:00 am-2:46 pm

1 stop7h 46m

$189

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 2/24

2:55 pm-10:18 pm

1 stop9h 23m

San Francisco

Wed 2/25

2:40 pm-11:56 pm

1 stop7h 16m

$214

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Wed 2/25

6:00 am-12:11 pm

1 stop8h 11m

San Francisco

Wed 2/25

12:43 am-9:23 am

1 stop6h 40m

$215

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 11/27

5:29 pm-8:07 pm

Nonstop4h 38m

San Francisco

Wed 12/3

10:35 am-4:27 pm

Nonstop3h 52m

$253

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Mon 10/27

5:29 pm-8:07 pm

Nonstop4h 38m

San Francisco

Wed 10/29

10:35 am-4:27 pm

Nonstop3h 52m

$253

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 11/25

5:29 pm-8:07 pm

Nonstop4h 38m

San Francisco

Wed 12/3

10:35 am-4:27 pm

Nonstop3h 52m

$253

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Wed 11/5

5:29 pm-8:07 pm

Nonstop4h 38m

San Francisco

Sat 11/8

10:35 am-4:27 pm

Nonstop3h 52m

$253

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 11/25

5:29 pm-8:07 pm

Nonstop4h 38m

San Francisco

Tue 12/2

10:35 am-4:27 pm

Nonstop3h 52m

$253

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Sat 10/25

1:30 pm-7:48 pm

1 stop8h 18m

San Francisco

Fri 10/31

12:35 am-11:34 am

1 stop8h 59m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 22 results
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Best time to book a flight from St. Louis to Fremont

Have a flexible travel schedule? Discover the best time to fly to Fremont from St. Louis 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 St. Louis to Fremont

How far ahead should I book a flight from St. Louis to Fremont?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Fremont. Price data was last updated on September 12, 2025.

The best time to book flights from St. Louis to Fremont 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 St. Louis to Fremont?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Fremont (average of $276). Flying from St. Louis to Fremont in June is currently the most expensive (average of $357). 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 STL to FR8?

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Fremont as you normally would.

What is the cheapest day to fly from St. Louis to Fremont?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Fremont. Price data was last updated on November 18, 2024.

Travelers seeking maximum savings on their St. Louis to Fremont flight should consider departing on Wednesday at noon when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from St. Louis to Fremont

Explore weekly flight availability from St. Louis to Fremont. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 16, 2025.

The most flights from STL to FR8 are scheduled on a Monday (4 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Fremont

Get insights into the airlines that provide service to Fremont. 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 Fremont. Reviews last updated September 16, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from St. Louis to Fremont. 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
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,957 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,924 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,174 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Fremont. 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 St. Louis to Fremont?

    If you book a flight to Fremont from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 3 flights from Lambert-St Louis to Fremont per day from 5 different airlines.

  • How popular is this St. Louis to Fremont flight route?

    Flights from Lambert-St Louis to Fremont have been viewed 15 times in the past calendar month.

  • How long is the flight from St. Louis to Fremont?

    A quick flight from St. Louis to Fremont can take about 4h 38m. Southwest provides one of the quickest options available for as low as $189. The distance from St. Louis to Fremont is about 1730 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most reliable airlines from St. Louis to Fremont?

    Consider Asiana Airlines (80%), Air New Zealand (71%) or Southwest (65%) when booking your flight. These represent the most reliable airlines when flying from St. Louis to Fremont.

  • What are the cheapest flights from St. Louis to Fremont?

    Looking for the cheapest flight from St. Louis to Fremont? While on average our users pay $628, our data indicates the cheapest price to be $149. The most popular route (Lambert-St Louis - San Francisco), is priced around $163.

  • Can I find deals for flights from St. Louis to Fremont that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Fremont?

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

  • Can I find deals for business class flights from St. Louis to Fremont?

    Yes. Cheapflights offers flight deals from St. Louis to Fremont 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 St. Louis to Fremont?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Fremont (average of $276). Flying from St. Louis to Fremont in June is currently the most expensive (average of $357). 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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Top 5 airlines flying from St. Louis to Fremont

Discover the top 5 airlines that operate flights from St. Louis to Fremont. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$117Average$238FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$202Average$336FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$235Average$378FlexibilityNo cancel feeOn-time69%
DeltaCheapest$246Average$342FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$256Average$421FlexibilityNo cancel feeOn-time63%

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