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

Airlines like Alaska Airlines fly from Santa Rosa to St. Louis in about 19h 45m. 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 $338, was found to be the cheapest airline from Santa Rosa to St. Louis..

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 is the cheapest time of day to fly from STS to STL?

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

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 Expedia the most. Expedia 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.

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.

$190+ Flights from Santa Rosa to St. Louis

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Cheap 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 December 18, 2025.

Wed 12/247:00 amSTS - STL

2 stops31h 26mAlaska Airlines

Mon 12/295:26 pmSTL - STS

1 stop22h 06mAlaska Airlines

Deal found 12/17

$1,180

Wed 12/242:24 pmSTS - STL

1 stop24h 02mAlaska Airlines

Sat 12/277:00 amSTL - STS

1 stop17h 17mAlaska Airlines

Deal found 12/17

$1,547

Wed 12/242:24 pmSTS - STL

1 stop7h 35mAlaska Airlines

Sun 12/287:00 amSTL - STS

1 stop8h 32mAlaska Airlines

Deal found 12/17

$1,811

Best flights from Santa Rosa to St. Louis
Discover carefully curated flight deals from Santa Rosa to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Mon 1/124:09 pmSTS - STL

2 stops19h 45mAlaska Airlines

Tue 1/202:50 pmSTL - STS

2 stops23h 32mAlaska Airlines

Deal found 12/16

$328

Tue 1/276:50 amSTS - STL

2 stops29h 04mAlaska Airlines

Tue 2/32:50 pmSTL - STS

1 stop21h 45mAlaska Airlines

Deal found 12/16

$328

Sat 1/316:30 pmSTS - STL

2 stops17h 24mAlaska Airlines

Mon 2/22:50 pmSTL - STS

2 stops23h 32mAlaska Airlines

Deal found 12/16

$333

Thu 1/159:33 pmSTS - STL

1 stop23h 13mAlaska Airlines

Tue 1/202:50 pmSTL - STS

2 stops23h 32mAlaska Airlines

Deal found 12/16

$338

Sun 1/259:33 pmSTS - STL

1 stop14h 21mAlaska Airlines

Tue 2/32:50 pmSTL - STS

2 stops23h 32mAlaska Airlines

Deal found 12/16

$338

Thu 1/294:09 pmSTS - STL

2 stops19h 45mAlaska Airlines

Tue 2/32:50 pmSTL - STS

2 stops23h 32mAlaska Airlines

Deal found 12/16

$338

Wed 1/287:00 amSTS - STL

2 stops28h 54mAlaska Airlines

Tue 2/32:50 pmSTL - STS

2 stops23h 32mAlaska Airlines

Deal found 12/16

$338

Tue 1/276:50 amSTS - STL

2 stops29h 04mAlaska Airlines

Fri 1/302:50 pmSTL - STS

1 stop11h 09mAlaska Airlines

Deal found 12/16

$338

Mon 1/269:33 pmSTS - STL

1 stop14h 21mAlaska Airlines

Mon 2/22:50 pmSTL - STS

2 stops23h 32mAlaska Airlines

Deal found 12/16

$338

Wed 1/287:00 amSTS - STL

2 stops28h 54mAlaska Airlines

Mon 2/22:50 pmSTL - STS

2 stops23h 32mAlaska Airlines

Deal found 12/16

$348

Mon 1/269:33 pmSTS - STL

1 stop14h 21mAlaska Airlines

Fri 1/302:50 pmSTL - STS

1 stop21h 45mAlaska Airlines

Deal found 12/16

$352

Last-minute flights from Santa Rosa to St. Louis
Discover last-minute flight deals from Santa Rosa to St. Louis. Data last updated December 18, 2025 and is based on user searches.

Mon 1/124:09 pmSTS - STL

2 stops19h 45mAlaska Airlines

Tue 1/202:50 pmSTL - STS

2 stops23h 32mAlaska Airlines

Deal found 12/16

$328

Mon 1/124:09 pmSTS - STL

2 stops19h 45mAlaska Airlines

Wed 1/212:50 pmSTL - STS

2 stops26h 39mAlaska Airlines

Deal found 12/16

$343

Mon 1/129:33 pmSTS - STL

1 stop14h 21mAlaska Airlines

Sat 1/176:19 pmSTL - STS

1 stop18h 16mAlaska Airlines

Deal found 12/16

$357

Tue 1/136:50 amSTS - STL

2 stops29h 04mAlaska Airlines

Tue 1/202:50 pmSTL - STS

2 stops23h 32mAlaska Airlines

Deal found 12/16

$313

Wed 1/1411:15 amSTS - STL

1 stop24h 39mAlaska Airlines

Wed 1/212:50 pmSTL - STS

2 stops26h 39mAlaska Airlines

Deal found 12/16

$353

Mon 1/269:33 pmSTS - STL

1 stop14h 21mAlaska Airlines

Mon 2/22:50 pmSTL - STS

1 stop21h 45mAlaska Airlines

Deal found 12/16

$352

Tue 1/276:50 amSTS - STL

2 stops29h 04mAlaska Airlines

Mon 2/22:50 pmSTL - STS

2 stops23h 32mAlaska Airlines

Deal found 12/16

$323

Thu 1/294:09 pmSTS - STL

2 stops19h 45mAlaska Airlines

Mon 2/22:50 pmSTL - STS

2 stops23h 32mAlaska Airlines

Deal found 12/16

$348

Fri 1/3011:15 amSTS - STL

1 stop9h 31mAlaska Airlines

Tue 2/32:50 pmSTL - STS

2 stops23h 32mAlaska Airlines

Deal found 12/16

$347

Sat 1/316:30 pmSTS - STL

2 stops17h 24mAlaska Airlines

Mon 2/22:50 pmSTL - STS

2 stops23h 32mAlaska Airlines

Deal found 12/16

$333

One-way flights from Santa Rosa to St. Louis
Search for one-way flight options from Santa Rosa to St. Louis. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Wed 3/182:45 pmSTS - STL

1 stop7h 11mAlaska Airlines

Deal found 12/16

$190

Tue 2/104:23 pmSTS - STL

1 stop5h 36mAmerican Airlines

Deal found 12/16

$195

Tue 3/243:00 pmSTS - STL

1 stop6h 55mAlaska Airlines

Deal found 12/16

$239

Thu 3/193:00 pmSTS - STL

1 stop6h 55mAlaska Airlines

Deal found 12/16

$255

Mon 3/233:00 pmSTS - STL

1 stop21h 11mAlaska Airlines

Deal found 12/16

$293

Mon 3/234:23 pmSTS - STL

2 stops15h 17mAmerican Airlines

Deal found 12/16

$318

Fri 3/203:00 pmSTS - STL

1 stop6h 55mAlaska Airlines

Deal found 12/16

$325

Sat 3/218:00 amSTS - STL

2 stops13h 55mAlaska Airlines

Deal found 12/16

$362

Find flight deals from Santa Rosa to St. Louis

Most accurate provider	FlightHub 3 stars
Most trusted provider	Expedia 3 stars
Round-trip from	$313 (Alaska Airlines)
One-way from	$190 (Alaska Airlines)
Popular in	December
Cheapest in	February
Average price	$523

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. 8% potential increase in price ($39 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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 1/12

4:09 pm-1:54 pm

2 stops19h 45m

Lambert-St Louis

Tue 1/20

2:50 pm-12:22 pm

2 stops23h 32m

$328

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Tue 1/27

6:50 am-1:54 pm

2 stops29h 04m

Lambert-St Louis

Tue 2/3

2:50 pm-10:35 am

1 stop21h 45m

$328

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Sat 1/31

6:30 pm-1:54 pm

2 stops17h 24m

Lambert-St Louis

Mon 2/2

2:50 pm-12:22 pm

2 stops23h 32m

$333

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Thu 1/15

9:33 pm-10:46 pm

1 stop23h 13m

Lambert-St Louis

Tue 1/20

2:50 pm-12:22 pm

2 stops23h 32m

$338

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Sun 1/25

9:33 pm-1:54 pm

1 stop14h 21m

Lambert-St Louis

Tue 2/3

2:50 pm-12:22 pm

2 stops23h 32m

$338

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Thu 1/29

4:09 pm-1:54 pm

2 stops19h 45m

Lambert-St Louis

Tue 2/3

2:50 pm-12:22 pm

2 stops23h 32m

$338

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Wed 1/28

7:00 am-1:54 pm

2 stops28h 54m

Lambert-St Louis

Tue 2/3

2:50 pm-12:22 pm

2 stops23h 32m

$338

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Tue 1/27

6:50 am-1:54 pm

2 stops29h 04m

Lambert-St Louis

Fri 1/30

2:50 pm-11:59 pm

1 stop11h 09m

$338

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Mon 1/26

9:33 pm-1:54 pm

1 stop14h 21m

Lambert-St Louis

Mon 2/2

2:50 pm-12:22 pm

2 stops23h 32m

$338

Santa RosaSt. Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Wed 1/28

7:00 am-1:54 pm

2 stops28h 54m

Lambert-St Louis

Mon 2/2

2:50 pm-12:22 pm

2 stops23h 32m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 20 results

Compare providers for flights from Santa Rosa to St. Louis

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 December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star

*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 Expedia the most. Expedia 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 $120). 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 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

11,055 reviews

Reviews

1 / 20

10.0

Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

American Airlines

7.2

Good

11,055 reviews

American Airlines

7.2

Good

11,055 reviews

Reviews

1 / 20

10.0

Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

Related info for your journey

How long is the flight from Santa Rosa to St. Louis?
Airlines like Alaska Airlines fly from Santa Rosa to St. Louis in about 19h 45m. 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 $338, was found to be the cheapest airline from Santa Rosa to St. Louis..
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 $120). 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

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Complete your trip

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Other flights to St. Louis

Top airline flying from Santa Rosa to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$338	Average$625	FlexibilityNo cancel fee	On-time71%

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$190+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Santa Rosa 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 Santa Rosa to St. Louis

Cheapest flights from Santa Rosa to St. LouisExplore 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 December 18, 2025.

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 December 18, 2025.

Find flight deals from Santa Rosa to St. Louis

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Santa Rosa to St. Louis that are best for you.

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 December.

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.

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?

Reviews of airlines servicing St. Louis

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.

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?

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

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

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

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

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

Traveling to a place near St. Louis?

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

Alternative routes for Santa Rosa to St. Louis

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Top airline flying from Santa Rosa to St. Louis

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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 December 18, 2025.