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Fremont

$65+ 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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SFO
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
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 Wednesday

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 October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$192
(Kiwi.com)

One-way from

$65
(Trip.com)

Popular in

July

Cheapest in

January

Average price

$347
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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Highest demand for flights based on searches. 8% potential increase in price ($37 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 October 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 October 23, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/22. 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 12/197:43 pmSTL - SFO
2 stops38h 05mFrontier
Fri 1/99:13 amSFO - STL
1 stop22h 49mFrontier
Deal found 10/22$192
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 12/412:04 pmSTL - SFO
1 stop27h 14mFrontier
Tue 12/96:30 amSFO - STL
1 stop25h 44mFrontier
Deal found 10/21$193
This Frontier deal was found by Cheapflights users on 10/21. 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 11/14:51 pmSTL - SFO
1 stop6h 38mFrontier
Sat 11/810:23 pmSFO - STL
1 stop9h 49mFrontier
Deal found 10/21$196
This Gotogate deal was found by Cheapflights users on 10/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:43 pmSTL - SFO
1 stop6h 41mFrontier
Sat 12/1311:33 pmSFO - STL
1 stop8h 14mFrontier
Deal found 10/21$197
This Booking.com deal was found by Cheapflights users on 10/22. 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 11/39:07 pmSTL - SFO
1 stop26h 15mFrontier
Thu 11/65:45 amSFO - STL
1 stop6h 12mFrontier
Deal found 10/22$198
This American Airlines deal was found by Cheapflights users on 10/21. 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.
Tue 12/165:30 pmSTL - SFO
1 stop7h 55mAmerican Airlines
Mon 1/1212:17 amSFO - STL
1 stop8h 46mAmerican Airlines
Deal found 10/21$201
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 12/177:43 pmSTL - SFO
2 stops26h 47mFrontier
Fri 1/96:00 amSFO - STL
1 stop12h 52mFrontier
Deal found 10/22$206
This Mytrip deal was found by Cheapflights users on 10/21. 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.
Sat 11/87:45 pmSTL - SFO
1 stop15h 48mFrontier
Mon 11/173:35 pmSFO - STL
1 stop15h 32mFrontier
Deal found 10/21$208
This United Airlines deal was found by Cheapflights users on 10/21. 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 12/165:30 pmSTL - SFO
Nonstop4h 38mUnited Airlines
Tue 1/135:00 amSFO - STL
1 stop8h 52mUnited Airlines
Deal found 10/21$209
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Sun 12/710:42 amSTL - SFO
1 stop28h 46mFrontier
Sun 12/146:30 amSFO - STL
1 stop25h 44mFrontier
Deal found 10/23$215
This Southwest deal was found by Cheapflights users on 10/21. 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 12/1611:25 amSTL - SFO
Nonstop4h 30mSouthwest
Tue 1/1311:45 amSFO - STL
Nonstop3h 50mSouthwest
Deal found 10/21$216
This American Airlines deal was found by Cheapflights users on 10/22. 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 12/117:00 amSTL - SFO
1 stop10h 05mAmerican Airlines
Fri 1/1612:17 amSFO - STL
1 stop8h 46mAmerican Airlines
Deal found 10/22$219

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 October 23, 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

Tue 12/16

5:30 pm-8:08 pm

Nonstop4h 38m

San Francisco

Tue 1/13

5:00 am-3:52 pm

1 stop8h 52m

$209

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 12/16

11:25 am-1:55 pm

Nonstop4h 30m

San Francisco

Tue 1/13

11:45 am-5:35 pm

Nonstop3h 50m

$216

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 12/18

6:00 am-11:27 am

1 stop7h 27m

San Francisco

Thu 1/8

6:00 am-6:04 pm

1 stop10h 04m

$237

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 12/4

6:05 am-1:20 pm

1 stop9h 15m

San Francisco

Tue 12/9

10:50 am-4:35 pm

Nonstop3h 45m

$241

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Wed 12/17

5:30 pm-8:08 pm

Nonstop4h 38m

San Francisco

Sat 1/10

11:00 pm-5:11 am

Nonstop4h 11m

$254

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 12/4

3:15 pm-9:20 pm

1 stop8h 05m

San Francisco

Mon 12/8

10:50 am-4:35 pm

Nonstop3h 45m

$257

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 1/15

9:40 am-12:15 pm

Nonstop4h 35m

San Francisco

Mon 1/19

9:30 pm-9:25 am

1 stop9h 55m

$257

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Fri 1/16

6:00 pm-10:58 pm

1 stop6h 58m

San Francisco

Sat 1/17

11:00 pm-5:11 am

Nonstop4h 11m

$299

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Sat 1/17

8:45 am-3:27 pm

1 stop8h 42m

San Francisco

Sat 1/17

11:00 pm-5:11 am

Nonstop4h 11m

$299

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Sun 12/7

5:30 pm-8:08 pm

Nonstop4h 38m

San Francisco

Sun 12/14

10:35 am-4:27 pm

Nonstop3h 52m

$307

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Showing 1-10 of 23 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 October 17, 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 October 23, 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 21% 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.

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 October 23, 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
4,236 reviews

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

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
4,236 reviews
Southwest
8.0
Very good
4,236 reviews

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

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
7,982 reviews
Southwest
8.0
Very good
4,236 reviews

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

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
8,995 reviews
Southwest
8.0
Very good
4,236 reviews

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

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
11,033 reviews
Southwest
8.0
Very good
4,236 reviews

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

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
3,128 reviews
Southwest
8.0
Very good
4,236 reviews

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

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 16 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 30m. United Airlines provides one of the quickest options available for as low as $216. 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 (83%), Air New Zealand (83%) or SkyWest Airlines (63%) 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 $590, our data indicates the cheapest price to be $126. The most popular route (Lambert-St Louis - San Francisco), is priced around $175.

  • 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.

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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$122Average$220FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$182Average$337FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$238Average$388FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$358FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$256Average$422FlexibilityNo cancel feeOn-time63%

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