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Fremont

$138+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SFO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Fremont are usually found in August or February, booked 23 days in advance, depart on a Thursday or Saturday and return on a Saturday

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 June 12, 2025.

Round-trip from

$265
(FlightHub)

One-way from

$138
(American Airlines)

Popular in

June

Cheapest in

August

Average price

$427
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 ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Frontier deal was found by Cheapflights users on 6/11. 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 9/117:52 pmSTL - SFO
1 stop6h 22mFrontier
Mon 9/158:04 pmSFO - STL
1 stop11h 03mFrontier
Deal found 6/11$261
This United Airlines deal was found by Cheapflights users on 6/10. 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 10/75:47 pmSTL - SFO
Nonstop4h 21mUnited Airlines
Tue 10/2110:45 amSFO - STL
Nonstop4h 00mUnited Airlines
Deal found 6/10$277
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 10/89:42 amSTL - SFO
1 stop8h 42mAmerican Airlines
Wed 10/298:00 amSFO - STL
1 stop10h 23mAmerican Airlines
Deal found 6/11$281
This Sun Country Air deal was found by Cheapflights users on 6/10. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/296:12 amSTL - SFO
1 stop27h 56mSun Country Air
Sat 7/126:14 pmSFO - STL
1 stop23h 17mSun Country Air
Deal found 6/10$285
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/73:57 pmSTL - SFO
1 stop8h 32mAlaska Airlines
Wed 10/222:44 pmSFO - STL
1 stop7h 15mAlaska Airlines
Deal found 6/10$296
This Delta deal was found by Cheapflights users on 6/11. 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.
Thu 8/147:11 pmSTL - SFO
1 stop6h 37mDelta
Tue 8/1911:59 pmSFO - STL
1 stop7h 58mDelta
Deal found 6/11$297
This Southwest deal was found by Cheapflights users on 6/11. 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.
Wed 10/84:25 pmSTL - SFO
1 stop6h 45mSouthwest
Wed 10/292:05 pmSFO - STL
2 stops8h 25mSouthwest
Deal found 6/11$302

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 June 12, 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

Thu 8/28

7:54 pm-12:19 am

1 stop6h 25m

San Francisco

Tue 9/2

6:50 am-9:11 am

1 stop24h 21m

$265

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Sun 6/29

6:12 am-8:08 am

1 stop27h 56m

San Francisco

Sat 7/12

6:14 pm-7:31 pm

1 stop23h 17m

$285

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 8/28

5:49 pm-8:10 pm

Nonstop4h 21m

San Francisco

Tue 9/2

6:30 am-4:33 pm

1 stop8h 03m

$287

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Wed 7/30

6:14 am-10:56 am

1 stop6h 42m

San Francisco

Wed 8/6

6:10 am-6:23 pm

1 stop10h 13m

$292

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 8/14

7:11 pm-11:48 pm

1 stop6h 37m

San Francisco

Tue 8/19

11:59 pm-9:57 am

1 stop7h 58m

$297

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Mon 8/4

7:15 pm-12:15 am

1 stop7h 00m

San Francisco

Wed 8/13

1:45 pm-7:35 pm

Nonstop3h 50m

$327

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Sun 8/10

7:32 pm-9:16 am

1 stop15h 44m

San Francisco

Thu 8/21

7:00 am-5:34 pm

1 stop8h 34m

$375

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Wed 9/10

2:01 pm-11:09 pm

1 stop11h 08m

$138

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Mon 8/25

5:49 pm-8:10 pm

Nonstop4h 21m

$139

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Sun 8/24

5:10 pm-10:51 pm

1 stop7h 41m

$143

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 15 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 9, 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 $364). 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 June 12, 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 June 12, 2025.

The most flights from STL to FR8 are scheduled on a Wednesday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Fremont by month

Plan your trip to Fremont by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Fremont ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit Fremont when rainfall is around 0.0 in.

Temperature in Fremont by month

Plan your trip to Fremont by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Fremont, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 June 12, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from St. Louis to Fremont by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

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

Overall

8.0

Boarding

8.1

Food

7.1

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

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

Overall

8.0

Boarding

8.1

Food

7.1

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 4 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 14 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 American Airlines. According to our data, you can fly for as low as $138. Users have also found prices from $139 and $143 on United Airlines and Sun Country Air, respectively.

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

    Consider Southwest (89%), United Airlines (82%) or Air New Zealand (82%) 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 $2,074, our data indicates the cheapest price to be $178. The most popular route (Lambert-St Louis - San Francisco), is priced around $265.

  • 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 $364). 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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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$117Average$174FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$236Average$344FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$347FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$239Average$410FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$256Average$419FlexibilityNo cancel feeOn-time63%

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