How popular is this San Francisco Bay Area to St. Louis flight route?

Flights from San Francisco Bay Area to Lambert-St Louis have been viewed 16 times in the past calendar month.

How long is the flight from San Francisco Bay Area to St. Louis?

There are many flights that can get you from San Francisco Bay Area to St. Louis in 5h 30m. Fly via Southwest, Delta, or Frontier to get the fastest option. Airlines will cover a distance of 1720 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines to fly from San Francisco Bay Area to St. Louis one-way?

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $98. Delta flights start at $147 while deals on United Airlines start at $151 one-way.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What are the most popular routes from San Francisco Bay Area to St. Louis?

Most travelers choose San Francisco - Lambert-St Louis, San Jose - Lambert-St Louis or Oakland - Lambert-St Louis when deciding on the best route from San Francisco Bay Area to St. Louis.

What are the cheapest flights from San Francisco Bay Area to St. Louis?

Looking for the cheapest flight from San Francisco Bay Area to St. Louis? While on average our users pay $323, our data indicates the cheapest price to be $132. The most popular route (San Francisco - Lambert-St Louis), is priced around $238.

What are the most reliable airlines from San Francisco Bay Area to St. Louis?

The top 3 most reliable airlines when flying from San Francisco Bay Area to St. Louis are United Airlines (77%), Southwest (74%) and Air New Zealand (66%).

What are the most popular airlines that fly from San Francisco Bay Area to St. Louis?

When booking a flight from San Francisco Bay Area to St. Louis, you may want to consider flying on American Airlines, Delta or Frontier as they are the most popular for this route.

What airport do you fly into for flights to St. Louis from San Francisco Bay Area?

Lambert-St Louis (STL) is the airport you will fly into if you book a flight from San Francisco Bay Area to St. Louis. It is only a 12.7 mi journey from Lambert-St Louis (STL) to St. Louis’s city center.

How can I find direct flights from San Francisco Bay Area to St. Louis?

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

Can I find deals for business class flights from San Francisco Bay Area to St. Louis?

Yes. Cheapflights offers flight deals from San Francisco Bay Area to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$78+ Flights from San Francisco Bay Area to St. Louis

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from San Francisco Bay Area to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from San Francisco Bay Area to St. Louis

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$220 (Frontier)
One-way from	$78 (Cheapflightsfares)
Popular in	June
Cheapest in	January
Average price	$375

Provider with most accurate pricing for San Francisco-Lambert-St Louis flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Francisco-Lambert-St Louis flights.

Search Deals

From San Francisco Bay Area to Lambert-St Louis

Search Deals

One-way flight from San Francisco Bay Area to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($39 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from San Francisco Bay Area to St. Louis

Cheapest flights from San Francisco Bay Area to St. Louis
Explore the most affordable flight options available from San Francisco Bay Area to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2025.

Fri 10/108:21 pmSFO - STL

1 stop10h 46mFrontier

Sat 10/184:51 pmSTL - SFO

1 stop6h 38mFrontier

Deal found 9/27

$220

Thu 10/96:34 amSFO - STL

1 stop24h 33mFrontier

Tue 10/147:52 pmSTL - SFO

1 stop28h 35mFrontier

Deal found 9/28

$222

Fri 10/2412:27 pmSJC - STL

1 stop18h 40mFrontier

Sun 10/267:52 pmSTL - SJC

1 stop17h 40mFrontier

Deal found 9/29

$226

Wed 11/197:30 amSFO - STL

2 stops33h 28mFrontier

Wed 12/37:43 pmSTL - SFO

1 stop25h 12mFrontier

Deal found 9/27

$234

Fri 10/179:23 pmSFO - STL

2 stops16h 33mFrontier

Tue 10/217:52 pmSTL - SFO

1 stop28h 35mFrontier

Deal found 9/26

$235

Thu 10/165:45 amSFO - STL

1 stop27h 58mFrontier

Sun 10/1910:17 amSTL - SFO

1 stop7h 43mFrontier

Deal found 9/27

$236

Thu 11/1312:43 pmSFO - STL

1 stop18h 24mFrontier

Thu 11/207:57 pmSTL - SFO

1 stop14h 11mFrontier

Deal found 9/29

$237

Sun 11/166:34 amSFO - STL

1 stop24h 33mFrontier

Thu 11/209:54 pmSTL - SFO

1 stop25h 09mFrontier

Deal found 9/28

$238

Mon 10/206:34 amSFO - STL

1 stop24h 33mFrontier

Thu 10/231:41 pmSTL - SFO

2 stops32h 47mFrontier

Deal found 9/27

$240

Sun 10/511:00 pmSFO - STL

1 stop14h 04mFrontier

Thu 10/911:32 amSTL - SFO

1 stop11h 51mFrontier

Deal found 9/29

$242

Thu 10/210:37 pmSFO - STL

1 stop20h 03mFrontier

Mon 10/67:55 pmSTL - SFO

1 stop28h 32mFrontier

Deal found 9/27

$244

Sat 11/86:34 amSFO - STL

1 stop24h 33mFrontier

Mon 11/1012:09 pmSTL - SFO

2 stops10h 01mFrontier

Deal found 9/27

$247

Best flights from San Francisco Bay Area to St. Louis
Discover carefully curated flight deals from San Francisco Bay Area to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2025.

Wed 10/223:40 pmOAK - STL

1 stop5h 30mSouthwest

Tue 10/281:15 pmSTL - OAK

1 stop7h 35mSouthwest

Deal found 9/26

$284

Tue 10/214:51 pmOAK - STL

1 stop5h 33mDelta

Tue 10/286:00 amSTL - OAK

2 stops12h 11mDelta

Deal found 9/27

$294

Fri 10/1712:27 pmSJC - STL

1 stop18h 40mFrontier

Sun 10/192:47 pmSTL - SJC

1 stop29h 01mFrontier

Deal found 9/27

$332

Sat 11/86:00 amSFO - STL

1 stop6h 24mUnited Airlines

Mon 11/105:29 pmSTL - SFO

Nonstop4h 38mUnited Airlines

Deal found 9/28

$348

Tue 2/241:00 pmSJC - STL

1 stop8h 56mHawaiian Airlines

Wed 2/257:00 amSTL - SJC

1 stop9h 10mHawaiian Airlines

Deal found 9/26

$357

Sun 3/111:35 amSFO - STL

1 stop10h 21mAlaska Airlines

Tue 3/32:55 pmSTL - SFO

1 stop9h 23mAlaska Airlines

Deal found 9/26

$360

Wed 10/224:51 pmOAK - STL

1 stop5h 33mDelta

Tue 10/286:00 amSTL - OAK

2 stops12h 11mDelta

Deal found 9/26

$294

Wed 10/297:35 pmSJC - STL

2 stops12h 02mDelta

Tue 11/46:40 amSTL - SJC

2 stops14h 15mDelta

Deal found 9/28

$294

Wed 11/195:10 amSFO - STL

2 stops10h 05mSouthwest

Wed 12/35:35 amSTL - SFO

2 stops8h 15mSouthwest

Deal found 9/27

$337

Tue 12/306:10 amOAK - STL

1 stop8h 16mAlaska Airlines

Wed 1/72:50 pmSTL - OAK

1 stop22h 13mAlaska Airlines

Deal found 9/28

$362

Tue 11/44:51 pmOAK - STL

1 stop5h 33mDelta

Thu 11/67:40 pmSTL - OAK

1 stop6h 13mDelta

Deal found 9/27

$309

Wed 11/59:25 amSFO - STL

1 stop5h 55mSouthwest

Sat 11/81:45 pmSTL - SFO

2 stops8h 05mSouthwest

Deal found 9/27

$344

Thu 11/132:49 pmOAK - STL

1 stop7h 10mAlaska Airlines

Sun 11/167:00 amSTL - OAK

1 stop29h 25mAlaska Airlines

Deal found 9/28

$365

Thu 10/239:20 amSJC - STL

1 stop6h 50mSouthwest

Tue 10/285:20 pmSTL - SJC

1 stop5h 45mSouthwest

Deal found 9/28

$344

Tue 11/49:50 amSJC - STL

1 stop6h 55mDelta

Sat 11/86:50 amSTL - SJC

2 stops11h 07mDelta

Deal found 9/27

$316

Sat 11/155:20 pmSJC - STL

1 stop28h 39mAlaska Airlines

Thu 11/207:00 amSTL - SJC

1 stop8h 45mAlaska Airlines

Deal found 9/29

$371

Tue 11/1812:30 amSFO - STL

1 stop6h 25mDelta

Wed 12/32:07 pmSTL - SFO

1 stop8h 52mDelta

Deal found 9/27

$321

Mon 11/244:05 pmSJC - STL

1 stop5h 30mSouthwest

Mon 12/16:45 pmSTL - SJC

1 stop6h 10mSouthwest

Deal found 9/27

$362

Sun 10/196:40 amOAK - STL

1 stop15h 23mAlaska Airlines

Wed 10/226:33 amSTL - OAK

1 stop19h 30mAlaska Airlines

Deal found 9/27

$382

Tue 3/35:55 amOAK - STL

1 stop5h 30mDelta

Wed 3/47:00 amSTL - OAK

1 stop7h 30mDelta

Deal found 9/26

$329

Thu 10/306:35 amSJC - STL

2 stops7h 25mSouthwest

Mon 11/32:25 pmSTL - SJC

1 stop8h 15mSouthwest

Deal found 9/27

$364

Thu 10/237:15 amSJC - STL

2 stops9h 25mDelta

Tue 10/286:50 amSTL - SJC

2 stops14h 05mDelta

Deal found 9/28

$330

Thu 11/205:50 amSFO - STL

1 stop5h 30mSouthwest

Wed 11/265:15 pmSTL - SFO

1 stop9h 05mSouthwest

Deal found 9/28

$378

Tue 10/217:25 amOAK - STL

2 stops7h 25mSouthwest

Tue 10/283:50 pmSTL - OAK

2 stops7h 40mSouthwest

Deal found 9/26

$379

Tue 11/412:40 pmSJC - STL

1 stop7h 24mDelta

Thu 11/66:00 amSTL - SJC

1 stop8h 24mDelta

Deal found 9/27

$349

Mon 11/244:10 pmSJC - STL

1 stop5h 20mSouthwest

Fri 11/282:00 pmSTL - SJC

2 stops8h 15mSouthwest

Deal found 9/28

$382

Thu 12/412:30 amSFO - STL

1 stop6h 40mDelta

Tue 12/96:00 amSTL - SFO

1 stop9h 33mDelta

Deal found 9/28

$369

Thu 11/205:25 amSFO - STL

2 stops9h 55mSouthwest

Tue 11/256:45 pmSTL - SFO

1 stop7h 35mSouthwest

Deal found 9/29

$383

Mon 11/35:10 amSFO - STL

2 stops10h 05mSouthwest

Wed 11/55:35 amSTL - SFO

2 stops8h 15mSouthwest

Deal found 9/28

$385

Mon 11/248:15 pmSTS - STL

1 stop25h 39mAlaska Airlines

Fri 11/287:00 amSTL - STS

1 stop8h 49mAlaska Airlines

Deal found 9/28

$662

Last-minute flights from San Francisco Bay Area to St. Louis
Discover last-minute flight deals from San Francisco Bay Area to St. Louis. Data last updated September 29, 2025 and is based on user searches.

Wed 10/18:00 amSFO - STL

1 stop27h 53mFrontier

Fri 10/37:55 pmSTL - SFO

1 stop28h 35mFrontier

Deal found 9/27

$257

Thu 10/210:37 pmSFO - STL

1 stop20h 03mFrontier

Mon 10/67:55 pmSTL - SFO

1 stop28h 32mFrontier

Deal found 9/27

$244

Fri 10/108:21 pmSFO - STL

1 stop10h 46mFrontier

Sat 10/184:51 pmSTL - SFO

1 stop6h 38mFrontier

Deal found 9/27

$220

Fri 10/108:21 pmSFO - STL

1 stop10h 46mFrontier

Mon 10/139:59 pmSTL - SFO

1 stop25h 23mFrontier

Deal found 9/27

$265

Thu 10/165:45 amSFO - STL

1 stop27h 58mFrontier

Sun 10/1910:17 amSTL - SFO

1 stop7h 43mFrontier

Deal found 9/28

$222

Fri 10/179:23 pmSFO - STL

2 stops16h 33mFrontier

Tue 10/217:52 pmSTL - SFO

1 stop28h 35mFrontier

Deal found 9/26

$235

Fri 10/178:21 pmSFO - STL

1 stop10h 46mFrontier

Sun 10/1910:17 amSTL - SFO

1 stop7h 43mFrontier

Deal found 9/27

$256

Sun 10/198:21 pmSFO - STL

1 stop10h 46mFrontier

Wed 10/227:52 pmSTL - SFO

2 stops14h 52mFrontier

Deal found 9/27

$251

Mon 10/206:34 amSFO - STL

1 stop24h 33mFrontier

Thu 10/231:41 pmSTL - SFO

2 stops32h 47mFrontier

Deal found 9/27

$240

Tue 10/214:51 pmOAK - STL

1 stop5h 33mDelta

Tue 10/286:50 amSTL - OAK

1 stop7h 00mDelta

Deal found 9/27

$289

Wed 10/223:40 pmOAK - STL

1 stop5h 30mSouthwest

Tue 10/281:15 pmSTL - OAK

1 stop7h 35mSouthwest

Deal found 9/28

$284

Fri 10/2412:27 pmSJC - STL

1 stop18h 40mFrontier

Sun 10/267:52 pmSTL - SJC

1 stop17h 40mFrontier

Deal found 9/29

$226

One-way flights from San Francisco Bay Area to St. Louis
Search for one-way flight options from San Francisco Bay Area to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 29, 2025.

Thu 10/305:45 amSFO - STL

1 stop6h 12mFrontier

Deal found 9/27

$78

Fri 10/248:21 pmSFO - STL

1 stop10h 46mFrontier

Deal found 9/29

$84

Wed 10/298:00 amSFO - STL

1 stop27h 57mFrontier

Deal found 9/29

$85

Fri 10/3112:27 pmSJC - STL

1 stop18h 40mFrontier

Deal found 9/27

$88

Mon 10/276:34 amSFO - STL

1 stop24h 33mFrontier

Deal found 9/28

$89

Fri 10/178:21 pmSFO - STL

1 stop10h 46mFrontier

Deal found 9/29

$98

Thu 10/165:45 amSFO - STL

1 stop27h 58mFrontier

Deal found 9/28

$99

Thu 12/47:53 pmSFO - STL

1 stop12h 09mFrontier

Deal found 9/27

$102

Mon 11/1012:27 pmSJC - STL

1 stop18h 40mFrontier

Deal found 9/27

$102

Sun 11/91:45 pmSFO - STL

2 stops17h 22mFrontier

Deal found 9/27

$103

Mon 11/36:19 pmSJC - STL

2 stops12h 48mFrontier

Deal found 9/27

$103

Sun 12/77:53 pmSFO - STL

1 stop12h 09mFrontier

Deal found 9/28

$112

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Francisco Bay Area to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Wed 10/22

3:40 pm-11:10 pm

1 stop5h 30m

Lambert-St Louis

Tue 10/28

1:15 pm-6:50 pm

1 stop7h 35m

$284

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Tue 10/21

4:51 pm-12:24 am

1 stop5h 33m

Lambert-St Louis

Tue 10/28

6:00 am-4:11 pm

2 stops12h 11m

$294

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Wed 10/22

4:51 pm-12:24 am

1 stop5h 33m

Lambert-St Louis

Tue 10/28

6:00 am-4:11 pm

2 stops12h 11m

$294

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Wed 10/29

7:35 pm-9:37 am

2 stops12h 02m

Lambert-St Louis

Tue 11/4

6:40 am-6:55 pm

2 stops14h 15m

$294

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Tue 11/4

4:51 pm-12:24 am

1 stop5h 33m

Lambert-St Louis

Thu 11/6

7:40 pm-11:53 pm

1 stop6h 13m

$309

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Tue 11/4

9:50 am-6:45 pm

1 stop6h 55m

Lambert-St Louis

Sat 11/8

6:50 am-3:57 pm

2 stops11h 07m

$316

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

Tue 11/18

12:30 am-8:55 am

1 stop6h 25m

Lambert-St Louis

Wed 12/3

2:07 pm-8:59 pm

1 stop8h 52m

$321

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Tue 3/3

5:55 am-1:25 pm

1 stop5h 30m

Lambert-St Louis

Wed 3/4

7:00 am-12:30 pm

1 stop7h 30m

$329

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Thu 10/23

7:15 am-6:40 pm

2 stops9h 25m

Lambert-St Louis

Tue 10/28

6:50 am-6:55 pm

2 stops14h 05m

$330

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Fri 10/17

12:27 pm-9:07 am

1 stop18h 40m

Lambert-St Louis

Sun 10/19

2:47 pm-5:48 pm

1 stop29h 01m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/28

Showing 1-10 of 60 results

...

Best time to book a flight from San Francisco Bay Area to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from San Francisco Bay Area 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 San Francisco Bay Area to St. Louis

What is the cheapest month to book a flight from San Francisco Bay Area to St. Louis?

Currently, August is the cheapest month in which you can book a flight from San Francisco Bay Area to St. Louis (average of $311). Flying from San Francisco Bay Area to St. Louis in March is currently the most expensive (average of $356). 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 XIH to STL?

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

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from San Francisco Bay Area to St. Louis by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,246 reviews

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

4,246 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Delta

8.0

Very good

7,964 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

United Airlines

7.4

Good

8,924 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Frontier

5.8

Fair

3,158 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Related info for your journey

What airport do you fly into for flights to St. Louis from San Francisco Bay Area?
Lambert-St Louis (STL) is the airport you will fly into if you book a flight from San Francisco Bay Area to St. Louis. It is only a 12.7 mi journey from Lambert-St Louis (STL) to St. Louis’s city center.
How popular is this San Francisco Bay Area to St. Louis flight route?
Flights from San Francisco Bay Area to Lambert-St Louis have been viewed 16 times in the past calendar month.
How long is the flight from San Francisco Bay Area to St. Louis?
There are many flights that can get you from San Francisco Bay Area to St. Louis in 5h 30m. Fly via Southwest, Delta, or Frontier to get the fastest option. Airlines will cover a distance of 1720 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines to fly from San Francisco Bay Area to St. Louis one-way?
To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $98. Delta flights start at $147 while deals on United Airlines start at $151 one-way.
What are the most popular routes from San Francisco Bay Area to St. Louis?
Most travelers choose San Francisco - Lambert-St Louis, San Jose - Lambert-St Louis or Oakland - Lambert-St Louis when deciding on the best route from San Francisco Bay Area to St. Louis.
What are the most reliable airlines from San Francisco Bay Area to St. Louis?
The top 3 most reliable airlines when flying from San Francisco Bay Area to St. Louis are United Airlines (77%), Southwest (74%) and Air New Zealand (66%).
What are the cheapest flights from San Francisco Bay Area to St. Louis?
Looking for the cheapest flight from San Francisco Bay Area to St. Louis? While on average our users pay $323, our data indicates the cheapest price to be $132. The most popular route (San Francisco - Lambert-St Louis), is priced around $238.
Can I find deals for flights from San Francisco Bay Area to St. Louis that include hotel bookings?
Yes. In addition to deals on San Francisco Bay Area to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Francisco Bay Area to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco Bay Area to St. Louis.
Can I find deals for business class flights from San Francisco Bay Area to St. Louis?
Yes. Cheapflights offers flight deals from San Francisco Bay Area to St. Louis 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 San Francisco Bay Area to St. Louis?
Currently, August is the cheapest month in which you can book a flight from San Francisco Bay Area to St. Louis (average of $311). Flying from San Francisco Bay Area to St. Louis in March is currently the most expensive (average of $356). 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

Edwardsville

O'Fallon

Fairview Heights

Maryland Heights

Collinsville

Eureka

Glencoe

St. Peters

Chesterfield

Alton

Farmington

Festus

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from San Francisco Bay Area to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$112	Average$250	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$189	Average$372	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$216	Average$454	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$246	Average$402	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$303	Average$428	FlexibilityNo cancel fee	On-time63%
Alaska Airlines	Cheapest$450	Average$593	FlexibilityNo cancel fee	On-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$78+ Cheap flights from San Francisco Bay Area to St. Louis (STL)

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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Francisco Bay Area to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from San Francisco Bay Area to St. Louis

Keep the following information in mind while searching for San Francisco Bay Area to St. Louis flight deals. Data was last updated September 29, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from San Francisco Bay Area to St. Louis

Cheapest flights from San Francisco Bay Area to St. LouisExplore the most affordable flight options available from San Francisco Bay Area to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2025.

Explore the most affordable flight options available from San Francisco Bay Area to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Francisco Bay Area to St. Louis that are best for you.

Best time to book a flight from San Francisco Bay Area to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from San Francisco Bay Area with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from San Francisco Bay Area to St. Louis

What is the cheapest month to book a flight from San Francisco Bay Area to St. Louis?

What is the cheapest time of day to fly from XIH to STL?

Find hourly flight availability from San Francisco Bay Area to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 29, 2025.

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from San Francisco Bay Area to St. Louis by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from San Francisco Bay Area to St. Louis. 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 into for flights to St. Louis from San Francisco Bay Area?

How popular is this San Francisco Bay Area to St. Louis flight route?

How long is the flight from San Francisco Bay Area to St. Louis?

What are the cheapest airlines to fly from San Francisco Bay Area to St. Louis one-way?

What are the most popular routes from San Francisco Bay Area to St. Louis?

What are the most reliable airlines from San Francisco Bay Area to St. Louis?

What are the cheapest flights from San Francisco Bay Area to St. Louis?

Can I find deals for flights from San Francisco Bay Area to St. Louis that include hotel bookings?

How can I find direct flights from San Francisco Bay Area to St. Louis?

Can I find deals for business class flights from San Francisco Bay Area to St. Louis?

What is the cheapest month to book a flight from San Francisco Bay Area to St. Louis?

Traveling to a place near St. Louis?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco Bay Area to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from San Francisco Bay Area to St. Louis

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from San Francisco Bay Area to St. Louis
Explore the most affordable flight options available from San Francisco Bay Area to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2025.