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Fremont

$88+ 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 12/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SFO
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Fremont are usually found in January or February, 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 November 20, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$129
(Kiwi.com)

One-way from

$88
(Mytrip)

Popular in

March

Cheapest in

January

Average price

$373
Provider with most accurate pricing for Lambert-St Louis-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-San Francisco flights.
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From Lambert-St Louis to Fremont
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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 November 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 November 20, 2025.

This Mytrip deal was found by Cheapflights users on 11/19. 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.
Mon 12/87:43 pmSTL - SFO
1 stop6h 41mFrontier
Thu 12/116:00 amSFO - STL
1 stop28h 12mFrontier
Deal found 11/19$150
This CheapOair deal was found by Cheapflights users on 11/19. 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 12/2010:10 pmSTL - SFO
1 stop11h 38mFrontier
Thu 1/810:18 pmSFO - STL
1 stop11h 54mFrontier
Deal found 11/19$177
This CheapOair deal was found by Cheapflights users on 11/20. 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.
Sun 12/2110:10 pmSTL - SFO
1 stop25h 39mFrontier
Sun 12/286:24 amSFO - STL
1 stop25h 38mFrontier
Deal found 11/20$184
This Kiwi.com deal was found by Cheapflights users on 11/19. 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 12/107:43 pmSTL - SFO
1 stop14h 10mFrontier
Fri 12/122:13 pmSFO - STL
2 stops18h 01mFrontier
Deal found 11/19$192
This Mytrip deal was found by Cheapflights users on 11/19. 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.
Wed 12/107:43 pmSTL - SFO
1 stop14h 10mFrontier
Sat 12/1311:33 pmSFO - STL
1 stop8h 14mFrontier
Deal found 11/19$193
This CheapOair deal was found by Cheapflights users on 11/19. 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 12/207:43 pmSTL - SFO
1 stop14h 40mFrontier
Sun 1/46:24 amSFO - STL
1 stop25h 38mFrontier
Deal found 11/19$215
This CheapOair deal was found by Cheapflights users on 11/19. 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 12/37:43 pmSTL - SFO
1 stop14h 10mFrontier
Thu 12/116:00 amSFO - STL
1 stop28h 12mFrontier
Deal found 11/19$218
This CheapOair deal was found by Cheapflights users on 11/19. 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 12/247:43 pmSTL - SFO
1 stop6h 41mFrontier
Mon 12/2911:20 pmSFO - STL
1 stop8h 20mFrontier
Deal found 11/19$227
This CheapOair deal was found by Cheapflights users on 11/18. 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.
Thu 12/185:19 pmSTL - SFO
1 stop16h 29mFrontier
Mon 12/2911:20 pmSFO - STL
1 stop8h 20mFrontier
Deal found 11/18$230
This Expedia deal was found by Cheapflights users on 11/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2010:10 pmSTL - SFO
1 stop11h 38mFrontier
Sat 12/2711:25 pmSFO - STL
1 stop8h 15mFrontier
Deal found 11/18$233

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 November 20, 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

Wed 2/18

6:10 am-1:44 pm

2 stops9h 34m

San Francisco

Sat 2/21

10:20 am-11:25 pm

2 stops11h 05m

$254

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 1/29

6:10 am-3:58 pm

2 stops11h 48m

San Francisco

Mon 2/2

10:30 am-9:38 pm

2 stops9h 08m

$254

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 1/27

2:50 pm-10:42 am

1 stop21h 52m

San Francisco

Tue 2/3

9:00 am-1:54 pm

1 stop26h 54m

$302

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Wed 1/28

2:50 pm-2:00 pm

1 stop25h 10m

San Francisco

Tue 2/3

4:46 pm-1:54 pm

1 stop19h 08m

$302

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 1/27

2:50 pm-2:00 pm

1 stop25h 10m

San Francisco

Sat 1/31

6:18 pm-1:54 pm

1 stop17h 36m

$312

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Fri 1/30

2:50 pm-8:11 am

1 stop19h 21m

San Francisco

Tue 2/3

12:00 pm-1:54 pm

1 stop23h 54m

$312

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 1/29

2:50 pm-11:03 pm

1 stop10h 13m

San Francisco

Fri 1/30

9:00 am-10:46 pm

1 stop11h 46m

$322

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 1/29

2:50 pm-2:00 pm

1 stop25h 10m

San Francisco

Mon 2/2

7:40 pm-1:54 pm

1 stop16h 14m

$332

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 12/18

6:00 am-3:57 pm

2 stops11h 57m

San Francisco

Wed 12/24

12:10 am-11:12 am

1 stop9h 02m

$406

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 1/8

10:50 am-1:35 pm

Nonstop4h 45m

San Francisco

Wed 1/14

9:30 pm-9:00 am

1 stop9h 30m

$416

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

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 November 14, 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, August is the cheapest month in which you can book a flight from St. Louis to Fremont (average of $123). Flying from St. Louis to Fremont in May is currently the most expensive (average of $256). 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 November 20, 2025.

When flying from St. Louis to Fremont, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 23% versus a flight in the evening.

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 Saturday afternoons 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 November 20, 2025.

The most flights from STL to FR8 are scheduled on a Wednesday (4 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 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 November 20, 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
4,251 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

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
4,251 reviews
Southwest
8.0
Very good
4,251 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

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
7.9
Good
8,002 reviews
Southwest
8.0
Very good
4,251 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

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
9,028 reviews
Southwest
8.0
Very good
4,251 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

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
11,047 reviews
Southwest
8.0
Very good
4,251 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

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
3,104 reviews
Southwest
8.0
Very good
4,251 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

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 2 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 17 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 9h 34m. Delta provides one of the quickest options available for as low as $254. 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 Air New Zealand (79%), Asiana Airlines (76%) or United Airlines (70%) 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 $533, our data indicates the cheapest price to be $156. The most popular route (Lambert-St Louis - San Francisco), is priced around $194.

  • 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, August is the cheapest month in which you can book a flight from St. Louis to Fremont (average of $123). Flying from St. Louis to Fremont in May is currently the most expensive (average of $256). 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.

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Alternative routes for St. Louis to Fremont

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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 November 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$122Average$220FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$182Average$336FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$359FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$256Average$420FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$258Average$390FlexibilityNo cancel feeOn-time69%

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