STL - STS

$163 Find Cheap Flights from St. Louis to Santa Rosa

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Santa Rosa departing on 4/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Santa Rosa

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Santa Rosa, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Santa Rosa, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$303
Alaska Airlines
Wed 4/15Wed 4/22
STL - STS • 1 stop
Cheapest one-way
$163
Alaska Airlines
Tue 4/14
STL - STS • 2 stops
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Santa Rosa. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Seattle (SEA)
Cheapest • Avg $520 (round-trip)
Dallas (DFW)
Shortest trip • 6h 30m (one-way)
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Santa Rosa!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Santa Rosa (STL-STS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Santa Rosa that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Santa Rosa

Wed, Apr 15 - Wed, Apr 22
Alaska Airlines Logo
7:00 am - 6:01 pm
STL
-
STS
13h 01m
1 stop
Alaska Airlines Logo
1:13 pm - 11:59 pm
STS
-
STL
8h 46m
1 stop
$303Alaska Airlines
Tue, Apr 14 - Sat, Apr 25
Alaska Airlines Logo
7:00 am - 11:59 pm
STL
-
STS
18h 59m
2 stops
Alaska Airlines Logo
1:13 pm - 11:59 pm
STS
-
STL
8h 46m
1 stop
$308Alaska Airlines
Tue, Apr 14 - Wed, Apr 22
Alaska Airlines Logo
7:00 am - 11:59 pm
STL
-
STS
18h 59m
2 stops
Alaska Airlines Logo
8:20 am - 11:59 pm
STS
-
STL
13h 39m
2 stops
$313Alaska Airlines
Tue, Apr 14 - Wed, Apr 22
Alaska Airlines Logo
7:00 am - 6:01 pm
STL
-
STS
13h 01m
1 stop
Alaska Airlines Logo
1:13 pm - 11:59 pm
STS
-
STL
8h 46m
1 stop
$323Alaska Airlines
Tue, Apr 14 - Tue, Apr 21
Alaska Airlines Logo
7:00 am - 11:59 pm
STL
-
STS
18h 59m
2 stops
Alaska Airlines Logo
6:53 pm - 11:59 pm
STS
-
STL
27h 06m
1 stop
$328Alaska Airlines
Tue, Apr 14 - Tue, Apr 21
Alaska Airlines Logo
7:00 am - 11:59 pm
STL
-
STS
18h 59m
2 stops
Alaska Airlines Logo
7:05 am - 11:59 pm
STS
-
STL
14h 54m
2 stops
$334Alaska Airlines
Tue, May 19 - Wed, May 20
Alaska Airlines Logo
5:33 pm - 11:30 pm
STL
-
STS
7h 57m
1 stop
Alaska Airlines Logo
7:00 am - 11:54 pm
STS
-
STL
14h 54m
2 stops
$338Alaska Airlines
Tue, Apr 14 - Tue, Apr 21
Alaska Airlines Logo
7:00 am - 6:01 pm
STL
-
STS
13h 01m
1 stop
Alaska Airlines Logo
6:53 pm - 11:59 pm
STS
-
STL
27h 06m
1 stop
$343Alaska Airlines
Tue, May 19 - Wed, May 20
Alaska Airlines Logo
5:33 pm - 11:30 pm
STL
-
STS
7h 57m
1 stop
Alaska Airlines Logo
7:50 am - 4:37 pm
STS
-
STL
6h 47m
1 stop
$346Alaska Airlines
Wed, Apr 15 - Tue, Apr 21
Alaska Airlines Logo
7:00 am - 6:01 pm
STL
-
STS
13h 01m
1 stop
Alaska Airlines Logo
7:05 am - 11:59 pm
STS
-
STL
14h 54m
2 stops
$348Alaska Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Santa Rosa flights

Get data-powered insights and trends into flights from St. Louis to Santa Rosa to help you find the cheapest flights, the best time to fly and much more.

What is the most popular layover airport when flying from St. Louis to Santa Rosa?

Percentage of 1-stop round-trip flights from St. Louis to Santa Rosa chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Phoenix (PHX) is the top choice – 50% of KAYAK users who clicked on 1-stop flights from St. Louis to Santa Rosa picked an itinerary connecting there.

What is the cheapest layover airport when flying from St. Louis to Santa Rosa?

Average round-trip price for 1-stop flights from St. Louis to Santa Rosa clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Seattle (SEA) offer the most affordable fares, with an average round-trip price of $520.

Which layover airport offers the shortest total travel time from St. Louis to Santa Rosa?

Shortest average total travel time for 1-stop one-way flights from St. Louis to Santa Rosa via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Dallas (DFW) for the shortest journey. The average one-way travel time for flights connecting there is 6h 30m.

Which layover airport has the quickest connection when flying from St. Louis to Santa Rosa?

Average layover duration at different layover airports for 1-stop one-way flights from St. Louis to Santa Rosa, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Dallas (DFW) often has the shortest layovers from St. Louis to Santa Rosa, with an average of 0h 57m.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$163
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from St. Louis to Santa Rosa

When to book flights from St. Louis to Santa Rosa

Are your dates flexible? Find out the best times to travel from St. Louis to Santa Rosa based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Santa Rosa

  • What is the cheapest flight from St. Louis to Santa Rosa?

    In the last 3 days, the lowest price for a flight from St. Louis to Santa Rosa was $163 for a one-way ticket and $303 for a round-trip.

  • Do I need a passport to fly between St. Louis and Santa Rosa?

    No

  • Which aircraft models fly most regularly from St. Louis to Santa Rosa?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Santa Rosa?

    oneworld is the only airline alliance operating flights between St. Louis and Santa Rosa.

  • How does KAYAK find such low prices on flights from St. Louis to Santa Rosa?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Santa Rosa.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Santa Rosa?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Santa Rosa from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Santa Rosa?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Santa Rosa with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and STS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Santa Rosa?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Santa Rosa from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from St. Louis to Santa Rosa

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Santa Rosa. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Santa Rosa? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11381 reviews
6.9Entertainment
6.4Food
7.5Boarding
7.2Comfort
8.0Crew
Airline reviews

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

8.0 ExcellentCatherine, Mar 2026
STL - LGA
Read more American Airlines reviews

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

They are always late and seats was also not having working charger

did not have enough meal for first class passengers so offer us snack

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

No enough space plus only allowing one laggage instead of two like other airlines.

Qatar airways ,boarding arrangements at Hamid international airport could been better

Amazing I love American. I’ll never fly anyone else if I can help it.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

Everything you need to know for your flight from St. Louis to Santa Rosa

Information on your arrival and departure airports

St. Louis (STL)
Santa Rosa (STS)