STL - STS

$201 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 8/15. 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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Everything you should know

Cheapest round-trip
$425
Typical prices: $638-$466
Alaska Airlines
Sat 5/16Wed 5/20
STL - STS • 1 stop
Cheapest one-way
$201
American Airlines
Sat 8/15
STL - STS • 1 stop
Top airlines
Cheapest • from $425 (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 31m (one-way)
Insights
Insights
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

Sat, May 16 - Wed, May 20
Alaska Airlines Logo
5:33 pm - 8:54 am
STL
-
STS
17h 21m
1 stop
Alaska Airlines Logo
1:09 pm - 11:54 pm
STS
-
STL
8h 45m
1 stop
$425Alaska Airlines
Fri, Sep 11 - Mon, Sep 14
American Airlines Logo
8:26 am - 3:47 pm
STL
-
STS
9h 21m
1 stop
American Airlines Logo
12:44 pm - 11:50 pm
STS
-
STL
9h 06m
1 stop
$436American Airlines
Sat, May 16 - Wed, May 20
Alaska Airlines Logo
5:33 pm - 8:54 am
STL
-
STS
17h 21m
1 stop
Alaska Airlines Logo
7:00 am - 11:54 pm
STS
-
STL
14h 54m
2 stops
$438Alaska Airlines
Tue, Jun 2 - Wed, Jun 3
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
$441Alaska Airlines
Sat, May 16 - Wed, May 20
Alaska Airlines Logo
5:33 pm - 8:54 am
STL
-
STS
17h 21m
1 stop
Alaska Airlines Logo
7:00 am - 11:54 pm
STS
-
STL
14h 54m
2 stops
$443Alaska Airlines
Fri, May 15 - Wed, May 20
Alaska Airlines Logo
5:33 pm - 11:30 pm
STL
-
STS
7h 57m
1 stop
Alaska Airlines Logo
7:01 am - 11:54 pm
STS
-
STL
14h 53m
2 stops
$452Alaska Airlines
Fri, May 15 - 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
$453Alaska Airlines
Fri, May 15 - Wed, May 20
Alaska Airlines Logo
5:33 pm - 8:54 am
STL
-
STS
17h 21m
1 stop
Alaska Airlines Logo
1:09 pm - 11:54 pm
STS
-
STL
8h 45m
1 stop
$456Alaska Airlines
Fri, May 15 - Wed, May 20
Alaska Airlines Logo
5:33 pm - 11:30 pm
STL
-
STS
7h 57m
1 stop
Alaska Airlines Logo
1:09 pm - 11:54 pm
STS
-
STL
8h 45m
1 stop
$460Alaska Airlines
Sat, May 16 - Wed, May 20
Alaska Airlines Logo
5:33 pm - 8:54 am
STL
-
STS
17h 21m
1 stop
Alaska Airlines Logo
7:01 am - 11:54 pm
STS
-
STL
14h 53m
2 stops
$463Alaska 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.

How much is a round-trip flight from St. Louis to Santa Rosa?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Santa Rosa departing in May.

Good to know

Low seasonMay
Cheapest flight$201
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 10% 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 $201 for a one-way ticket and $425 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 11672 reviews
7.9Crew
7.5Boarding
7.2Comfort
6.9Entertainment
6.4Food
Airline reviews

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.

4.0 OkayJames, Apr 2026
STL - LAX
Read more American Airlines reviews

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.

Flight: Started on time. Comfortable flight. Arrived on time. Crew: Very cordial and helpful. Drinks and snack was served with a smile. Overall enjoyed the trip. Regards, Hari Doss Chanchala Doss

To have arrived on time and not 3 hours late after having already spent $100 to change to an earlier flight, only to arrive back home close to the original flight time.

American Airlines is a miserable experience. It is predictably miserable, in the sense that every time I fly American, I brace myself for the certainty that it will be unpleasant and uncomfortable. But it is unpredictable in the sense that I never know if the flight will be on time or delayed nine hours (both happened to me this week). I never know if I will be able to sit in the seat that I selected when I purchased the ticket or if I will be told by Customer Service (!!!) that I must relocate from first class to a seat in the back of the aircraft with no explanation (both happened to me this week). Will the food be frozen and half defrosted, or scalding hot? Will the drinks be warm? Will the flight attendants be surly and mean? Will the toilets be cramped and foul? Will the seats be narrow and uncomfortable? Will there be a real electric outlet at the seat, or just an unreliable USB-2 port? Will there be enough seats in the boarding lounge or just a few? Will the boarding process be smooth and efficient, or will the gate agents mess it up and delay it needlessly for 30 or 40 minutes? Will the catering and cleaning crew be prompt or will they take an extra 30 minutes? Will the brakes on the aircraft work properly, or will the pilot delay takeoff for four hours while the ground crew attends to what can only be described as routine maintenance that should have been done the night before? I've eexperienced every one of these unpleasant things this year, 2026. The only thing I can reliably count on is that American will find a new way to make the experience of flying as miserable as they possibly can.

Wifi was spotty. Tray table was very dirty when I sat down.

The WiFi would not connect enough for me to do my actual work. It permaspooled, disconnected, said it was connected, then wouldn't open an email... it was frustrating. I am not a tall person, 5'4" - and I felt cramped with little room to reach into my bag under the seat in front of me. I feel sorry for anyone taller than me having to fly. the one positive thing I will add, is the overhead bins are roomy enough to manage more bags than other carriers.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Delayed for mechanical and no updates on what was happening and how long the delay might be.

A first class seat should fit a fat person, and this doesn't. The trays in the armrest are less functional than an ordinary tray in the back of the seat.

The experience at checkin for my American Airlines flight from Sacramento to LAX was very good including the assistance I received in getting my bags checked in and boarding passes printed. Was pleasantly surprised the my bags were checked through all the way to my destination at Clark International Airport in Angeles, Philippines.

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

Information on your arrival and departure airports