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Cheap flights from Santa Rosa to St. Louis from $198

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Santa Rosa to St. Louis departing on 12/30. 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 Santa Rosa to St. Louis

Cheap round-trip flights

Multiple Airlines Logo
7:00 am - 9:04 pmSTS-STL
12h 04m2 stops
Multiple Airlines Logo
6:33 am - 1:36 pmSTL-STS
9h 03m1 stop
$396Multiple Airlines
Find Deal
Mon, Oct 13 - Sat, Oct 18
Alaska Airlines Logo
2:22 pm - 11:59 pmSTS-STL
7h 37m1 stop
Alaska Airlines Logo
4:14 pm - 1:26 pmSTL-STS
23h 12m1 stop
$415Alaska Airlines
Find Deal
Thu, Nov 6 - Mon, Nov 10
Alaska Airlines Logo
2:30 pm - 12:03 amSTS-STL
7h 33m1 stop
Alaska Airlines Logo
6:33 am - 1:36 pmSTL-STS
9h 03m1 stop
$416Alaska Airlines
Find Deal
Fri, Oct 17 - Mon, Oct 20
Alaska Airlines Logo
2:22 pm - 11:59 pmSTS-STL
7h 37m1 stop
Alaska Airlines Logo
7:00 am - 8:44 amSTL-STS
27h 44m2 stops
$421Alaska Airlines
Find Deal
Thu, Nov 6 - Mon, Nov 10
Alaska Airlines Logo
6:51 pm - 12:03 amSTS-STL
27h 12m2 stops
Alaska Airlines Logo
6:33 am - 1:36 pmSTL-STS
9h 03m1 stop
$441Alaska Airlines
Find Deal
Fri, Oct 17 - Mon, Oct 20
Alaska Airlines Logo
8:03 pm - 11:59 pmSTS-STL
25h 56m2 stops
Alaska Airlines Logo
7:00 am - 8:44 amSTL-STS
27h 44m2 stops
$445Alaska Airlines
Find Deal
Thu, Nov 6 - Mon, Nov 10
Alaska Airlines Logo
7:05 am - 12:03 amSTS-STL
14h 58m1 stop
Alaska Airlines Logo
3:57 pm - 10:06 pmSTL-STS
8h 09m1 stop
$466Alaska Airlines
Find Deal
Tue, Oct 14 - Thu, Oct 16
Hawaiian Airlines Logo
7:00 am - 5:34 pmSTS-STL
8h 34m1 stop
Hawaiian Airlines Logo
3:57 pm - 10:06 pmSTL-STS
8h 09m1 stop
$531Hawaiian Airlines
Find Deal
Wed, Oct 1 - Wed, Oct 8
American Airlines Logo
12:53 pm - 11:57 pmSTS-STL
9h 04m1 stop
American Airlines Logo
7:00 am - 12:01 pmSTL-STS
7h 01m1 stop
$559American Airlines
Find Deal
Mon, Oct 13 - Sat, Oct 18
Hawaiian Airlines Logo
7:00 am - 5:34 pmSTS-STL
8h 34m1 stop
Hawaiian Airlines Logo
6:33 am - 1:36 pmSTL-STS
9h 03m1 stop
$752Hawaiian Airlines
Find Deal
Wed, Oct 1 - Wed, Oct 8

Hawaiian Airlines flights from Santa Rosa to St. Louis

Our best Hawaiian Airlines deals on Santa Rosa to St. Louis flight tickets
Hawaiian Airlines
Oct 1
STS7:00 amSanta Rosa Sonoma County
8h 34m
1 stop
STL5:34 pmLambert-St Louis
Oct 8
STL3:57 pmLambert-St Louis
8h 09m
1 stop
STS10:06 pmSanta Rosa Sonoma County
$531
Find similar
Hawaiian Airlines
Oct 1
STS7:00 amSanta Rosa Sonoma County
8h 34m
1 stop
STL5:34 pmLambert-St Louis
Oct 8
STL6:33 amLambert-St Louis
9h 03m
1 stop
STS1:36 pmSanta Rosa Sonoma County
$752
Find similar

Alaska Airlines flights from Santa Rosa to St. Louis

Our best Alaska Airlines deals on Santa Rosa to St. Louis flight tickets
Alaska Airlines
Nov 6
STS2:22 pmSanta Rosa Sonoma County
7h 37m
1 stop
STL11:59 pmLambert-St Louis
Nov 10
STL4:14 pmLambert-St Louis
23h 12m
1 stop
STS1:26 pmSanta Rosa Sonoma County
$415
Find similar
Alaska Airlines
Oct 17
STS2:30 pmSanta Rosa Sonoma County
7h 33m
1 stop
STL12:03 amLambert-St Louis
Oct 20
STL6:33 amLambert-St Louis
9h 03m
1 stop
STS1:36 pmSanta Rosa Sonoma County
$416
Find similar
Alaska Airlines
Nov 6
STS2:22 pmSanta Rosa Sonoma County
7h 37m
1 stop
STL11:59 pmLambert-St Louis
Nov 10
STL7:00 amLambert-St Louis
27h 44m
2 stops
STS8:44 amSanta Rosa Sonoma County
$421
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Santa Rosa to St. Louis 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 September 18, 2025.
Use the filters below to find and compare flights from Santa Rosa to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Mon 10/13

7:00 am-9:04 pm

2 stops12h 04m

Lambert-St Louis

Sat 10/18

6:33 am-1:36 pm

1 stop9h 03m

$396

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Thu 11/6

2:22 pm-11:59 pm

1 stop7h 37m

Lambert-St Louis

Mon 11/10

4:14 pm-1:26 pm

1 stop23h 12m

$415

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Fri 10/17

2:30 pm-12:03 am

1 stop7h 33m

Lambert-St Louis

Mon 10/20

6:33 am-1:36 pm

1 stop9h 03m

$416

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Thu 11/6

2:22 pm-11:59 pm

1 stop7h 37m

Lambert-St Louis

Mon 11/10

7:00 am-8:44 am

2 stops27h 44m

$421

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Fri 10/17

6:51 pm-12:03 am

2 stops27h 12m

Lambert-St Louis

Mon 10/20

6:33 am-1:36 pm

1 stop9h 03m

$441

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Thu 11/6

8:03 pm-11:59 pm

2 stops25h 56m

Lambert-St Louis

Mon 11/10

7:00 am-8:44 am

2 stops27h 44m

$445

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Tue 10/14

7:05 am-12:03 am

1 stop14h 58m

Lambert-St Louis

Thu 10/16

3:57 pm-10:06 pm

1 stop8h 09m

$466

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Wed 10/1

7:00 am-5:34 pm

1 stop8h 34m

Lambert-St Louis

Wed 10/8

3:57 pm-10:06 pm

1 stop8h 09m

$531

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Mon 10/13

12:53 pm-11:57 pm

1 stop9h 04m

Lambert-St Louis

Sat 10/18

7:00 am-12:01 pm

1 stop7h 01m

$559

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Wed 10/1

7:00 am-5:34 pm

1 stop8h 34m

Lambert-St Louis

Wed 10/8

6:33 am-1:36 pm

1 stop9h 03m

$752

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to St. Louis from

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

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 day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $423. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $468. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Santa Rosa at noon is the least expensive time of day to depart. momondo users have found prices as low as $417 when looking at flights departing at noon. In the evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $444 per ticket.

When to book flights from Santa Rosa to St. Louis

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

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

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

Direct flights

None
There are no direct flights from Santa Rosa to St. Louis. There are no popular flight routes from Santa Rosa to St. Louis.
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  • How far is Santa Rosa Sonoma County to Lambert-St Louis by plane?

    The straight-line distance from Santa Rosa Sonoma County to Lambert-St Louis is 1746.9 mi. A reasonable flight in good conditions will take 7h 33m.

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

    Prices for flights from Santa Rosa Sonoma County Airport to Lambert-St Louis Airport are refreshed on a daily basis.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Santa Rosa Sonoma County Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Santa Rosa to St. Louis

Compare and see reviews for airlines that fly from Santa Rosa to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $346Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $450Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Fenton
Collinsville
Wentzville
Alton
St. Peters
Farmington
Festus
Glencoe
Clayton
Edwardsville
Eureka
Litchfield
Shrewsbury

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Santa Rosa to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

momondo helps you find the best flight between Santa Rosa and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to St. Louis from Santa Rosa are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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