STL - STS

$194 Find Cheap Flights from St. Louis to Santa Rosa - Compare and Save

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 9/19. 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

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Everything you should know

Cheapest round-trip
$392
Southwest
Thu 8/27Sun 8/30
STL - STS • 1 stop
Cheapest one-way
$194
Southwest
Sat 9/19
STL - STS • 1 stop
Top airlines
Cheapest • from $392 (round-trip)
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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
Insights
Insights
Top layover airports
Cheapest • Avg $528 (round-trip)
Shortest trip • 6h 18m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Thu, Aug 27 - Sun, Aug 30
Southwest Logo
8:25 am - 2:20 pm
STL
-
STS
7h 55m
1 stop
Southwest Logo
10:30 am - 12:05 am
STS
-
STL
11h 35m
1 stop
$392Southwest
Thu, Aug 27 - Sun, Aug 30
Southwest Logo
6:25 am - 2:20 pm
STL
-
STS
9h 55m
2 stops
Southwest Logo
10:30 am - 12:05 am
STS
-
STL
11h 35m
1 stop
$398Southwest
Thu, Aug 27 - Sun, Aug 30
Southwest Logo
6:00 am - 2:20 pm
STL
-
STS
10h 20m
2 stops
Southwest Logo
7:05 am - 6:10 pm
STS
-
STL
9h 05m
2 stops
$463Southwest
Sat, Nov 14 - Tue, Nov 17
Alaska Airlines Logo
7:00 am - 2:22 pm
STL
-
STS
9h 22m
1 stop
Alaska Airlines Logo
7:00 am - 10:29 pm
STS
-
STL
13h 29m
2 stops
$492Alaska Airlines
Sat, Nov 14 - Tue, Nov 17
Alaska Airlines Logo
9:38 am - 10:33 pm
STL
-
STS
14h 55m
2 stops
Alaska Airlines Logo
7:00 am - 10:29 pm
STS
-
STL
13h 29m
2 stops
$497Alaska Airlines
Sat, Nov 14 - Tue, Nov 17
Alaska Airlines Logo
7:00 am - 2:22 pm
STL
-
STS
9h 22m
1 stop
Alaska Airlines Logo
7:00 am - 10:29 pm
STS
-
STL
13h 29m
2 stops
$514Alaska Airlines
Sat, Nov 14 - Tue, Nov 17
Alaska Airlines Logo
9:38 am - 10:33 pm
STL
-
STS
14h 55m
2 stops
Alaska Airlines Logo
7:00 am - 10:29 pm
STS
-
STL
13h 29m
2 stops
$519Alaska Airlines
Tue, Jul 28 - Wed, Aug 5
American Airlines Logo
5:32 am - 12:03 pm
STL
-
STS
8h 31m
1 stop
American Airlines Logo
12:58 pm - 12:14 am
STS
-
STL
9h 16m
2 stops
$529American Airlines
Tue, Jul 28 - Wed, Aug 5
American Airlines Logo
8:38 am - 3:42 pm
STL
-
STS
9h 04m
2 stops
American Airlines Logo
12:58 pm - 12:14 am
STS
-
STL
9h 16m
2 stops
$534American Airlines
Sun, Aug 2 - Sat, Aug 8
Southwest Logo
10:15 am - 3:25 pm
STL
-
STS
7h 10m
1 stop
Southwest Logo
2:00 pm - 10:00 pm
STS
-
STL
6h 00m
1 stop
$535Southwest
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 cheapest month to fly from St. Louis to Santa Rosa?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Santa Rosa, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Santa Rosa is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are October and August, where the average cost of round-trip tickets is $843 and $653 respectively.

Good to know

Low seasonApril
Cheapest flight$194
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly and prices are also 3% 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 5 days, the lowest price for a flight from St. Louis to Santa Rosa was $194 for a one-way ticket and $392 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 11782 reviews
7.5Boarding
7.2Comfort
6.4Food
6.8Entertainment
7.9Crew
Airline reviews

My luggage was not sent with us. Not sure if this is Envoy Air responsibility but that was a very BAD experience

8.0 ExcellentJoseph, Jul 2026
STL - ORD
Read more American Airlines reviews

My luggage was not sent with us. Not sure if this is Envoy Air responsibility but that was a very BAD experience

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

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.

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

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

Overall boarding and debarking is a joke. I dont even bring luggage anymore on trips because you can never allow them to be place then in the overhead bin or you have to pay or you check them which is even worse having to wait for your luggage on the tarmac.

Everything minus the seat, was okay. Not enough room. 15 hours in a small space was hard on my back. I'm still quite sore.

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

Information on your arrival and departure airports