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$199+ Cheap flights from Santa Rosa to St. Louis (STS - 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
STS — STL
Nov 21 — Nov 281
Fri 11/21
Fri 11/28
1 adult, Economy
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Find flight deals from Santa Rosa to St. Louis

Cheapest flights from Santa Rosa to St. Louis
Explore the most affordable flight options available from Santa Rosa to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 22, 2025.

This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/218:17 pmSTS - STL
2 stops12h 33mAlaska Airlines
Sun 12/2811:41 amSTL - STS
2 stops23h 43mAlaska Airlines
Deal found 10/21$702
This American Airlines deal was found by Cheapflights users on 10/20. 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 11/41:18 pmSTS - STL
1 stop7h 40mAmerican Airlines
Sat 11/87:00 amSTL - STS
1 stop7h 07mAmerican Airlines
Deal found 10/20$719
This Alaska Airlines deal was found by Cheapflights users on 10/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/47:00 amSTS - STL
2 stops14h 42mAlaska Airlines
Sat 11/811:35 amSTL - STS
2 stops23h 09mAlaska Airlines
Deal found 10/20$807
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.
Sun 12/2112:59 pmSTS - STL
2 stops8h 46mAmerican Airlines
Sun 12/285:16 amSTL - STS
2 stops9h 13mAmerican Airlines
Deal found 10/21$1,189

Cheap flight deals from Santa Rosa to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Santa Rosa (STS) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$485
(Alaska Airlines)

One-way from

$199
(American Airlines)

Popular in

November

Cheapest in

December

Average price

$886
Provider with most accurate pricing for Santa Rosa Sonoma County-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Santa Rosa Sonoma County-Lambert-St Louis flights.
Search Deals
From Santa Rosa Sonoma County to Lambert-St Louis
Search Deals
One-way flight from Santa Rosa Sonoma County to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($100 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated October 22, 2025.
Use the filters below to find and compare flights from Santa Rosa to St. Louis that are best for you.

Fly from

Santa Rosa

Fly to

St. Louis

Route

Depart

Return

Price

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Tue 4/14

7:00 am-11:55 pm

2 stops14h 55m

Lambert-St Louis

Wed 4/15

7:00 am-2:20 pm

1 stop9h 20m

$485

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Sun 12/21

8:17 pm-10:50 am

2 stops12h 33m

Lambert-St Louis

Sun 12/28

11:41 am-9:24 am

2 stops23h 43m

$702

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Tue 11/4

1:18 pm-10:58 pm

1 stop7h 40m

Lambert-St Louis

Sat 11/8

7:00 am-12:07 pm

1 stop7h 07m

$719

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Sun 12/21

12:59 pm-11:45 pm

2 stops8h 46m

Lambert-St Louis

Sun 12/28

5:16 am-12:29 pm

2 stops9h 13m

$1,189

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Sun 1/11

6:30 pm-1:54 pm

2 stops17h 24m

$202

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Fri 1/9

7:50 am-10:51 pm

2 stops13h 01m

$217

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Sat 1/10

11:15 am-11:59 pm

2 stops10h 44m

$250

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Wed 11/26

4:23 pm-11:51 pm

1 stop5h 28m

$345

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Wed 11/26

7:00 pm-8:09 am

2 stops11h 09m

$369

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Tue 11/25

4:23 pm-11:51 pm

1 stop5h 28m

$384

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Compare providers for flights from Santa Rosa to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Santa Rosa to St. Louis in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Santa Rosa-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Santa Rosa-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Santa Rosa-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Santa Rosa-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Santa Rosa-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Santa Rosa to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Santa Rosa 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 Santa Rosa to St. Louis

What is the cheapest month to book a flight from Santa Rosa to St. Louis?

Currently, February is the cheapest month in which you can book a flight from Santa Rosa to St. Louis (average of $119). Flying from Santa Rosa to St. Louis in July 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.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated October 22, 2025.
Get a feel of what it's like to fly with American Airlines from Santa Rosa to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,029 reviews

Comfort

7.2

Boarding

7.5

Food

6.4

Crew

8.0

Overall

7.2

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
11,029 reviews
American Airlines
7.2
Good
11,029 reviews

Comfort

7.2

Boarding

7.5

Food

6.4

Crew

8.0

Overall

7.2

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Related info for your journey

Find useful and relevant information for your journey from Santa Rosa to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Santa Rosa to St. Louis?

    Airlines like Alaska Airlines fly from Santa Rosa to St. Louis in about 14h 55m. The time it takes to get you to your destination can typically vary by up to . The distance from Santa Rosa to St. Louis is about 1741 mi.

  • What is the cheapest airline to fly from Santa Rosa to St. Louis round-trip?

    American Airlines, at $346, was found to be the cheapest airline from Santa Rosa to St. Louis.. Users have found that American Airlines is 47% cheaper than the other options available to this destination.

  • Can I find deals for flights from Santa Rosa to St. Louis that include hotel bookings?

    Yes. In addition to deals on Santa Rosa to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Santa Rosa to St. Louis?

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

  • Can I find deals for business class flights from Santa Rosa to St. Louis?

    Yes. Cheapflights offers flight deals from Santa Rosa 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 Santa Rosa to St. Louis?

    Currently, February is the cheapest month in which you can book a flight from Santa Rosa to St. Louis (average of $119). Flying from Santa Rosa to St. Louis in July 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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Top airline flying from Santa Rosa to St. Louis

Discover the top airline that operate flights from Santa Rosa to St. Louis. 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 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$346Average$638FlexibilityNo cancel feeOn-time71%

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