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Fremont

$133+ 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SFO
Jul 7 — Jul 141
Mon 7/7
Mon 7/14
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Fremont are usually found in February or August, booked 23 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 July 2, 2025.

Round-trip from

$242
(FlightHub)

One-way from

$133
(Frontier)

Popular in

March

Cheapest in

February

Average price

$413
From Lambert-St Louis to Fremont
Search Deals
One-way flight from Lambert-St Louis to Fremont
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High demand for flights, 0% potential price rise
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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 July 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 July 2, 2025.

This FlightHub deal was found by Cheapflights users on 6/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/267:55 pmSTL - SFO
1 stop28h 35mFrontier
Fri 10/36:29 amSFO - STL
1 stop24h 37mFrontier
Deal found 6/30$242
This Orbitz deal was found by Cheapflights users on 7/1. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/37:55 pmSTL - SFO
1 stop6h 21mMultiple Airlines
Tue 10/72:44 pmSFO - STL
1 stop7h 15mMultiple Airlines
Deal found 7/1$292
This United Airlines deal was found by Cheapflights users on 6/30. 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 8/55:41 pmSTL - SFO
Nonstop4h 16mUnited Airlines
Tue 8/1212:30 amSFO - STL
1 stop6h 58mUnited Airlines
Deal found 6/30$303
This Delta deal was found by Cheapflights users on 6/30. 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 7/236:00 amSTL - SFO
1 stop10h 10mDelta
Wed 7/303:45 pmSFO - STL
1 stop5h 35mDelta
Deal found 6/30$313
This Southwest deal was found by Cheapflights users on 6/30. 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.
Mon 8/1110:45 amSTL - SFO
Nonstop4h 10mSouthwest
Tue 8/1912:45 pmSFO - STL
1 stop7h 50mSouthwest
Deal found 6/30$317
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Thu 11/66:01 amSTL - SFO
1 stop10h 26mAmerican Airlines
Mon 11/1011:59 pmSFO - STL
1 stop9h 45mAmerican Airlines
Deal found 7/1$320

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 July 2, 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

Fri 9/26

7:55 pm-10:30 pm

1 stop28h 35m

San Francisco

Fri 10/3

6:29 am-9:06 am

1 stop24h 37m

$242

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Fri 10/3

7:55 pm-12:16 am

1 stop6h 21m

San Francisco

Tue 10/7

2:44 pm-11:59 pm

1 stop7h 15m

$292

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 8/5

5:41 pm-7:57 pm

Nonstop4h 16m

San Francisco

Tue 8/12

12:30 am-9:28 am

1 stop6h 58m

$303

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Wed 7/23

6:00 am-2:10 pm

1 stop10h 10m

San Francisco

Wed 7/30

3:45 pm-11:20 pm

1 stop5h 35m

$313

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Mon 8/11

10:45 am-12:55 pm

Nonstop4h 10m

San Francisco

Tue 8/19

12:45 pm-10:35 pm

1 stop7h 50m

$317

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 11/6

6:01 am-2:27 pm

1 stop10h 26m

San Francisco

Mon 11/10

11:59 pm-11:44 am

1 stop9h 45m

$320

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Mon 8/4

2:37 pm-9:21 pm

1 stop8h 44m

$138

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Wed 9/3

6:00 am-5:25 pm

2 stops13h 25m

$142

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Sun 8/17

8:00 am-10:56 pm

1 stop16h 56m

$143

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 9/30

1:53 pm-11:33 pm

1 stop11h 40m

$144

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 14 results
1
2

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 June 27, 2025.

The best time to book flights from St. Louis to Fremont is 23 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 $360). 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 July 2, 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.

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 July 2, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

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

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

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
4,272 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

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
7,983 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

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
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

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 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.

  • What are the cheapest airlines to fly from St. Louis to Fremont one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $133. Users have also found prices from $142 and $144 on Alaska Airlines and American Airlines, respectively.

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

    Consider United Airlines (79%), Air New Zealand (73%) or Southwest (71%) 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 $1,232, our data indicates the cheapest price to be $148. The most popular route (Lambert-St Louis - San Francisco), is priced around $250.

  • 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 $360). 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 July 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$115Average$172FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$236Average$347FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$346FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$242Average$411FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$256Average$418FlexibilityNo cancel feeOn-time63%

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