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Cheap flights from St. Louis to San Francisco from $260

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 6/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
5:33 pm - 11:30 pm
STL
-
STS
7h 57m
1 stop
Alaska Airlines Logo
1:09 pm - 11:54 pm
STS
-
STL
8h 45m
1 stop
$421Alaska Airlines
Tue, Jun 2 - Wed, Jun 3
Alaska Airlines Logo
5:33 pm - 11:30 pm
STL
-
STS
7h 57m
1 stop
Alaska Airlines Logo
1:09 pm - 11:54 pm
STS
-
STL
8h 45m
1 stop
$426Alaska Airlines
Tue, Jun 2 - Wed, Jun 3
Alaska Airlines Logo
5:33 pm - 11:30 pm
STL
-
STS
7h 57m
1 stop
Alaska Airlines Logo
1:09 pm - 11:54 pm
STS
-
STL
8h 45m
1 stop
$437Alaska Airlines
Tue, Jun 2 - Wed, Jun 3
Southwest Logo
5:35 am - 11:05 am
STL
-
STS
7h 30m
1 stop
Southwest Logo
2:15 pm - 9:50 pm
STS
-
STL
5h 35m
1 stop
$445Southwest
Tue, Jun 9 - Tue, Jun 9
Southwest Logo
2:20 pm - 10:45 pm
STL
-
STS
10h 25m
2 stops
Southwest Logo
2:15 pm - 9:50 pm
STS
-
STL
5h 35m
1 stop
$450Southwest
Wed, Jun 10 - Wed, Jun 17
Alaska Airlines Logo
6:00 am - 12:43 pm
STL
-
STS
8h 43m
1 stop
Alaska Airlines Logo
8:07 am - 5:03 pm
STS
-
STL
6h 56m
1 stop
$455Alaska Airlines
Tue, Aug 25 - Wed, Aug 26
Southwest Logo
2:20 pm - 10:45 pm
STL
-
STS
10h 25m
2 stops
Southwest Logo
6:00 am - 9:50 pm
STS
-
STL
13h 50m
2 stops
$461Southwest
Wed, Jun 10 - Wed, Jun 17
Southwest Logo
6:30 am - 1:55 pm
STL
-
STS
9h 25m
2 stops
Southwest Logo
1:25 pm - 10:25 pm
STS
-
STL
7h 00m
1 stop
$466Southwest
Thu, Oct 15 - Tue, Oct 20
Southwest Logo
3:00 pm - 11:00 pm
STL
-
STS
10h 00m
2 stops
Southwest Logo
7:40 am - 6:55 pm
STS
-
STL
9h 15m
2 stops
$471Southwest
Thu, Oct 15 - Tue, Oct 20
Southwest Logo
2:25 pm - 10:40 pm
STL
-
STS
10h 15m
2 stops
Southwest Logo
2:05 pm - 11:45 pm
STS
-
STL
7h 40m
1 stop
$482Southwest
Mon, Jun 1 - Sat, Jun 6

Alaska Airlines flights from St. Louis to Santa Rosa

Our best Alaska Airlines deals on St. Louis to Santa Rosa flight tickets
Alaska Airlines
Jun 2
STL5:33 pmLambert-St Louis
7h 57m
1 stop
STS11:30 pmSanta Rosa Sonoma County
Jun 3
STS1:09 pmSanta Rosa Sonoma County
8h 45m
1 stop
STL11:54 pmLambert-St Louis
$421
Alaska Airlines
Jun 2
STL5:33 pmLambert-St Louis
7h 57m
1 stop
STS11:30 pmSanta Rosa Sonoma County
Jun 3
STS1:09 pmSanta Rosa Sonoma County
8h 45m
1 stop
STL11:54 pmLambert-St Louis
$426
Alaska Airlines
Jun 2
STL5:33 pmLambert-St Louis
7h 57m
1 stop
STS11:30 pmSanta Rosa Sonoma County
Jun 3
STS1:09 pmSanta Rosa Sonoma County
8h 45m
1 stop
STL11:54 pmLambert-St Louis
$437

American Airlines flights from St. Louis to Santa Rosa

Our best American Airlines deals on St. Louis to Santa Rosa flight tickets
American Airlines
Jun 26
STL8:00 amLambert-St Louis
6h 39m
1 stop
STS12:39 pmSanta Rosa Sonoma County
Jun 29
STS1:09 pmSanta Rosa Sonoma County
8h 48m
1 stop
STL11:57 pmLambert-St Louis
$521
American Airlines
Aug 19
STL6:42 amLambert-St Louis
7h 27m
1 stop
STS12:09 pmSanta Rosa Sonoma County
Sep 2
STS12:39 pmSanta Rosa Sonoma County
9h 03m
1 stop
STL11:42 pmLambert-St Louis
$525
American Airlines
Aug 18
STL8:00 amLambert-St Louis
6h 28m
1 stop
STS12:28 pmSanta Rosa Sonoma County
Sep 1
STS4:08 pmSanta Rosa Sonoma County
18h 46m
2 stops
STL12:54 pmLambert-St Louis
$557

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 May 9, 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

Cheapest round-trip

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

Tue 6/2

5:33 pm-11:30 pm

1 stop7h 57m

Santa Rosa Sonoma County

Wed 6/3

1:09 pm-11:54 pm

1 stop8h 45m

$421

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

Tue 6/2

5:33 pm-11:30 pm

1 stop7h 57m

Santa Rosa Sonoma County

Wed 6/3

1:09 pm-11:54 pm

1 stop8h 45m

$426

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

Tue 6/2

5:33 pm-11:30 pm

1 stop7h 57m

Santa Rosa Sonoma County

Wed 6/3

1:09 pm-11:54 pm

1 stop8h 45m

$437
Quickest round-trip

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

Tue 6/9

5:35 am-11:05 am

1 stop7h 30m

Santa Rosa Sonoma County

Tue 6/9

2:15 pm-9:50 pm

1 stop5h 35m

$445

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

Wed 6/10

2:20 pm-10:45 pm

2 stops10h 25m

Santa Rosa Sonoma County

Wed 6/17

2:15 pm-9:50 pm

1 stop5h 35m

$450

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

Tue 8/25

6:00 am-12:43 pm

1 stop8h 43m

Santa Rosa Sonoma County

Wed 8/26

8:07 am-5:03 pm

1 stop6h 56m

$455

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

Wed 6/10

2:20 pm-10:45 pm

2 stops10h 25m

Santa Rosa Sonoma County

Wed 6/17

6:00 am-9:50 pm

2 stops13h 50m

$461

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

Thu 10/15

6:30 am-1:55 pm

2 stops9h 25m

Santa Rosa Sonoma County

Tue 10/20

1:25 pm-10:25 pm

1 stop7h 00m

$466

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

Thu 10/15

3:00 pm-11:00 pm

2 stops10h 00m

Santa Rosa Sonoma County

Tue 10/20

7:40 am-6:55 pm

2 stops9h 15m

$471

St. LouisSanta Rosa

STL - STS

STLSTS

Lambert-St Louis

Mon 6/1

2:25 pm-10:40 pm

2 stops10h 15m

Santa Rosa Sonoma County

Sat 6/6

2:05 pm-11:45 pm

1 stop7h 40m

$482

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 typical price of a round-trip flight between St. Louis and Santa Rosa?

What is the cheapest month to fly to Santa Rosa?

If you are unable to visit Santa Rosa during the month of December, then departing from St. Louis during the month January is also very affordable. Most momondo users find prices during this month for around $0.

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

6h 25m

Direct flights

None
The fastest flight from St. Louis to Santa Rosa takes 6h 25m
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

Frequently asked questions about flying from St. Louis to Santa Rosa

  • 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 6h 25m.

  • 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 $466Free CancellationRating
7.1
11,668 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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