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Cheap flights from St. Louis to San Francisco from $234

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to San Francisco departing on 2/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
7:00 am - 9:52 pm
STL
-
STS
16h 52m
1 stop
Alaska Airlines Logo
7:57 pm - 2:23 pm
STS
-
STL
16h 26m
1 stop
$393Alaska Airlines
mar., feb. 24 - sáb., feb. 28
Alaska Airlines Logo
7:00 am - 10:11 am
STL
-
STS
29h 11m
2 stops
Alaska Airlines Logo
7:57 pm - 2:23 pm
STS
-
STL
16h 26m
1 stop
$398Alaska Airlines
mar., feb. 24 - sáb., feb. 28
Alaska Airlines Logo
7:00 am - 10:11 am
STL
-
STS
29h 11m
2 stops
Alaska Airlines Logo
8:00 am - 2:23 pm
STS
-
STL
28h 23m
2 stops
$408Alaska Airlines
mar., feb. 24 - sáb., feb. 28
Alaska Airlines Logo
7:00 am - 10:11 am
STL
-
STS
29h 11m
2 stops
Alaska Airlines Logo
8:00 am - 2:23 pm
STS
-
STL
28h 23m
2 stops
$433Alaska Airlines
mar., feb. 24 - sáb., feb. 28
Alaska Airlines Logo
6:20 pm - 11:30 pm
STL
-
STS
7h 10m
1 stop
Alaska Airlines Logo
7:02 pm - 5:06 pm
STS
-
STL
20h 04m
1 stop
$479Alaska Airlines
mié., jun. 3 - lun., jun. 8
Alaska Airlines Logo
6:20 pm - 11:30 pm
STL
-
STS
7h 10m
1 stop
Alaska Airlines Logo
12:06 pm - 5:06 pm
STS
-
STL
27h 00m
2 stops
$484Alaska Airlines
mié., jun. 3 - lun., jun. 8
Alaska Airlines Logo
6:20 pm - 9:22 pm
STL
-
STS
29h 02m
2 stops
Alaska Airlines Logo
12:06 pm - 5:06 pm
STS
-
STL
27h 00m
2 stops
$497Alaska Airlines
mié., jun. 3 - lun., jun. 8
Alaska Airlines Logo
7:30 pm - 10:10 am
STL
-
STS
16h 40m
1 stop
Alaska Airlines Logo
1:14 pm - 5:13 pm
STS
-
STL
25h 59m
2 stops
$568Alaska Airlines
dom., jun. 14 - jue., jun. 18
Alaska Airlines Logo
6:20 pm - 11:30 pm
STL
-
STS
7h 10m
1 stop
Alaska Airlines Logo
8:00 am - 5:06 pm
STS
-
STL
7h 06m
1 stop
$584Alaska Airlines
jue., may. 21 - mar., may. 26
Alaska Airlines Logo
2:47 pm - 11:50 pm
STL
-
STS
11h 03m
1 stop
Alaska Airlines Logo
11:15 am - 11:59 pm
STS
-
STL
10h 44m
1 stop
$603Alaska Airlines
vie., feb. 13 - dom., feb. 15

Alaska Airlines flights from St. Louis to Santa Rosa

Our best Alaska Airlines deals on St. Louis to Santa Rosa flight tickets
Alaska Airlines
Feb 24
STL7:00 amLambert-St Louis
16h 52m
1 stop
STS9:52 pmSanta Rosa Sonoma County
Feb 28
STS7:57 pmSanta Rosa Sonoma County
16h 26m
1 stop
STL2:23 pmLambert-St Louis
$393
Alaska Airlines
Feb 24
STL7:00 amLambert-St Louis
29h 11m
2 stops
STS10:11 amSanta Rosa Sonoma County
Feb 28
STS7:57 pmSanta Rosa Sonoma County
16h 26m
1 stop
STL2:23 pmLambert-St Louis
$398
Alaska Airlines
Feb 24
STL7:00 amLambert-St Louis
29h 11m
2 stops
STS10:11 amSanta Rosa Sonoma County
Feb 28
STS8:00 amSanta Rosa Sonoma County
28h 23m
2 stops
STL2:23 pmLambert-St Louis
$408

American Airlines flights from St. Louis to Santa Rosa

Our best American Airlines deals on St. Louis to Santa Rosa flight tickets
American Airlines
Feb 8
STL7:27 amLambert-St Louis
6h 58m
1 stop
STS12:25 pmSanta Rosa Sonoma County
Feb 12
STS1:03 pmSanta Rosa Sonoma County
8h 56m
1 stop
STL11:59 pmLambert-St Louis
$816
American Airlines
Feb 8
STL7:15 amLambert-St Louis
10h 38m
2 stops
STS3:53 pmSanta Rosa Sonoma County
Feb 13
STS4:23 pmSanta Rosa Sonoma County
5h 36m
1 stop
STL11:59 pmLambert-St Louis
$821
American Airlines
Jan 31
STL7:43 amLambert-St Louis
10h 10m
1 stop
STS3:53 pmSanta Rosa Sonoma County
Feb 1
STS12:55 pmSanta Rosa Sonoma County
9h 04m
1 stop
STL11:59 pmLambert-St Louis
$834

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Santa Rosa 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, momondo users made 832,500 searches. Data last updated enero 29, 2026.
Use the filters below to find and compare flights from St. Louis to Santa Rosa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

mar. 2/24

7:00 am-9:52 pm

1 stop16h 52m

Santa Rosa Sonoma County

sáb. 2/28

7:57 pm-2:23 pm

1 stop16h 26m

$393

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

mar. 2/24

7:00 am-10:11 am

2 stops29h 11m

Santa Rosa Sonoma County

sáb. 2/28

7:57 pm-2:23 pm

1 stop16h 26m

$398

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

mar. 2/24

7:00 am-10:11 am

2 stops29h 11m

Santa Rosa Sonoma County

sáb. 2/28

8:00 am-2:23 pm

2 stops28h 23m

$408

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

mar. 2/24

7:00 am-10:11 am

2 stops29h 11m

Santa Rosa Sonoma County

sáb. 2/28

8:00 am-2:23 pm

2 stops28h 23m

$433

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

mié. 6/3

6:20 pm-11:30 pm

1 stop7h 10m

Santa Rosa Sonoma County

lun. 6/8

7:02 pm-5:06 pm

1 stop20h 04m

$479

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

mié. 6/3

6:20 pm-11:30 pm

1 stop7h 10m

Santa Rosa Sonoma County

lun. 6/8

12:06 pm-5:06 pm

2 stops27h 00m

$484

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

mié. 6/3

6:20 pm-9:22 pm

2 stops29h 02m

Santa Rosa Sonoma County

lun. 6/8

12:06 pm-5:06 pm

2 stops27h 00m

$497

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

dom. 6/14

7:30 pm-10:10 am

1 stop16h 40m

Santa Rosa Sonoma County

jue. 6/18

1:14 pm-5:13 pm

2 stops25h 59m

$568

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

jue. 5/21

6:20 pm-11:30 pm

1 stop7h 10m

Santa Rosa Sonoma County

mar. 5/26

8:00 am-5:06 pm

1 stop7h 06m

$584

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

vie. 2/13

2:47 pm-11:50 pm

1 stop11h 03m

Santa Rosa Sonoma County

dom. 2/15

11:15 am-11:59 pm

1 stop10h 44m

$603

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from St. Louis to Santa Rosa

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Lambert-St Louis to Santa Rosa Sonoma County?

Alaska Airlines and American Airlines are the most popular carriers operating from Lambert-St Louis to Santa Rosa Sonoma County

What airlines fly to Santa Rosa?

United Airlines, Southwest and Frontier are the top three most popular airlines that fly to Santa Rosa from St. Louis according to our data. United Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Santa Rosa. Keep in mind that there are 5 different airlines that fly to Santa Rosa on a routine basis, so you have a few additional options to choose from.

When to book flights from St. Louis to Santa Rosa

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Santa Rosa according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Santa Rosa (STL to STS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Santa Rosa

Fastest flight time

7h 10m

Direct flights

None
The fastest flight from St. Louis to Santa Rosa takes 7h 10m
There are no direct flights from St. Louis to Santa Rosa. There are no popular flight routes from St. Louis to Santa Rosa.
Search flight deals

  • How far is Lambert-St Louis to Santa Rosa Sonoma County by plane?

    A flight from Lambert-St Louis to Santa Rosa Sonoma County will travel around 1746.9 mi. By plane, this route typically takes 7h 10m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Santa Rosa Sonoma County Airport?

    Prices for flights from Lambert-St Louis Airport to Santa Rosa Sonoma County Airport are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Santa Rosa Sonoma County Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Santa Rosa Sonoma County Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Santa Rosa Sonoma County Airport.

  • What documentation or ID do you need to fly to Santa Rosa Sonoma County Airport?

    The travel and health documents you'll need for your trip to Santa Rosa Sonoma County Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Santa Rosa Sonoma County Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Santa Rosa?

Best airlines flying from St. Louis to Santa Rosa

Compare and see reviews for airlines that fly from St. Louis to Santa Rosa with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $494Free CancellationRating
7.2
11,206 reviews
Search American Airlines flights

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Fort Bragg
Mendocino
Ukiah
Little River
Point Arena

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Santa Rosa?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Santa Rosa. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to Santa Rosa with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Santa Rosa from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Santa Rosa?

Once you have performed a search for St. Louis to Santa Rosa flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Santa Rosa right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Santa Rosa from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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