STL - STS

$187 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 3/3. 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
$300
Alaska Airlines
Tue 1/6Wed 1/7
STL - STS • 1 stop
Cheapest one-way
$187
Alaska Airlines
Tue 3/3
STL - STS • 1 stop
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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

Tue, Jan 6 - Wed, Jan 7
Alaska Airlines Logo
7:00 am - 1:32 pmSTL-STS
8h 32m1 stop
Alaska Airlines Logo
11:15 am - 1:54 pmSTS-STL
24h 39m1 stop
$300Alaska Airlines
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Tue, Jan 6 - Wed, Jan 7
Alaska Airlines Logo
7:00 am - 1:32 pmSTL-STS
8h 32m1 stop
Alaska Airlines Logo
6:50 am - 1:54 pmSTS-STL
29h 04m2 stops
$316Alaska Airlines
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Sat, Jan 24 - Wed, Jan 28
American Airlines Logo
7:43 am - 12:25 pmSTL-STS
6h 42m1 stop
American Airlines Logo
4:23 pm - 11:59 pmSTS-STL
5h 36m1 stop
$343American Airlines
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Tue, Jan 6 - Wed, Jan 7
Alaska Airlines Logo
7:00 am - 7:02 pmSTL-STS
14h 02m2 stops
Alaska Airlines Logo
6:50 am - 1:54 pmSTS-STL
29h 04m2 stops
$373Alaska Airlines
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Sat, Jan 24 - Wed, Jan 28
Alaska Airlines Logo
6:19 pm - 10:35 amSTL-STS
18h 16m1 stop
Alaska Airlines Logo
11:03 am - 1:54 pmSTS-STL
24h 51m2 stops
$393Alaska Airlines
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Sat, Jan 24 - Wed, Jan 28
Alaska Airlines Logo
6:19 pm - 10:35 amSTL-STS
18h 16m1 stop
Alaska Airlines Logo
11:15 am - 1:54 pmSTS-STL
24h 39m1 stop
$402Alaska Airlines
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Sat, Jan 24 - Wed, Jan 28
Alaska Airlines Logo
6:19 pm - 8:41 pmSTL-STS
28h 22m2 stops
Alaska Airlines Logo
11:03 am - 1:54 pmSTS-STL
24h 51m2 stops
$408Alaska Airlines
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Fri, Feb 13 - Mon, Feb 16
Alaska Airlines Logo
7:00 am - 10:32 amSTL-STS
29h 32m1 stop
Alaska Airlines Logo
7:57 pm - 1:51 pmSTS-STL
15h 54m1 stop
$431Alaska Airlines
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Fri, Mar 20 - Tue, Mar 24
Alaska Airlines Logo
7:00 am - 2:20 pmSTL-STS
9h 20m1 stop
Alaska Airlines Logo
3:00 pm - 11:55 pmSTS-STL
6h 55m1 stop
$478Alaska Airlines
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Tue, May 26 - Sat, May 30
Southwest Logo
9:10 am - 3:55 pmSTL-STS
8h 45m1 stop
Southwest Logo
1:00 pm - 9:15 pmSTS-STL
6h 15m1 stop
$479Southwest
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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’s the cheapest day of the week to fly from St. Louis to Santa Rosa?

The average price of all round-trip flights from St. Louis to Santa Rosa clicked on KAYAK for each day over the last 12 months.

When flying from St. Louis to Santa Rosa, you should consider leaving on a Monday and avoid Saturdays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Fridays and the most expensive ones on Wednesdays.

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Good to know

Low seasonDecember
Cheapest flight$187
Best time to beat the crowds with an average 45% drop in price.
Most popular time to fly and prices are also 1% 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 $187 for a one-way ticket and $300 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.
7.2
American AirlinesOverall score based on 11045 reviews
6.5Food
7.5Boarding
7.2Comfort
8.0Crew
6.9Entertainment
Airline reviews

We were told the flight was delayed 5 times, then it was moved to the next day.

2.0 MediocreAnonymous, Nov 2025DCA - LAX
Read more American Airlines reviews

We were told the flight was delayed 5 times, then it was moved to the next day.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

Loved the crew . Absolutely no complaints. Except for luggage lost

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

We are too tired and frustrated to comment politely at this point

The flight crew was rude. We were in first class and no one even offered water until an hour after we were in the air. Horrible experience

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Did not get the seat I selected and paid for.

My flight was delayed for several hours. Sitting at gate 16 for several hours, I got a text from Kayak the gate changed to 9 before it was announced. Very bad communication at each gate from American Airlines employees. I received 10 notifications of delay from Kayak. My vacation started off horrible! I will write to American Airlines corporate office also.

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)