STL - STS

$216 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 4/11. 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
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$343
Alaska Airlines
Thu 3/26Mon 3/30
STL - STS • 1 stop
Cheapest one-way
$216
American Airlines
Sat 4/11
STL - STS • 2 stops
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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, Mar 26 - Mon, Mar 30
Alaska Airlines Logo
7:00 am - 6:01 pm
STL
-
STS
13h 01m
1 stop
Alaska Airlines Logo
6:53 pm - 2:51 pm
STS
-
STL
17h 58m
1 stop
$343Alaska Airlines
Tue, Feb 24 - Sat, Feb 28
Alaska Airlines Logo
7:00 am - 10:32 am
STL
-
STS
29h 32m
1 stop
Alaska Airlines Logo
7:57 pm - 11:59 pm
STS
-
STL
26h 02m
1 stop
$393Alaska Airlines
Tue, Feb 24 - Sat, Feb 28
Alaska Airlines Logo
7:00 am - 10:11 am
STL
-
STS
29h 11m
2 stops
Alaska Airlines Logo
7:57 pm - 11:59 pm
STS
-
STL
26h 02m
1 stop
$398Alaska Airlines
Tue, Feb 24 - Sat, Feb 28
Alaska Airlines Logo
7:00 am - 10:11 am
STL
-
STS
29h 11m
2 stops
Alaska Airlines Logo
8:00 am - 2:23 pm
STS
-
STL
28h 23m
2 stops
$408Alaska Airlines
Sat, Apr 11 - Wed, Apr 15
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
$418Alaska Airlines
Tue, Feb 24 - Sat, Feb 28
Alaska Airlines Logo
7:00 am - 10:11 am
STL
-
STS
29h 11m
2 stops
Alaska Airlines Logo
6:50 pm - 2:23 pm
STS
-
STL
17h 33m
2 stops
$433Alaska Airlines
Tue, May 19 - Fri, May 29
Alaska Airlines Logo
6:20 pm - 11:30 pm
STL
-
STS
7h 10m
1 stop
Alaska Airlines Logo
8:00 am - 5:06 pm
STS
-
STL
7h 06m
1 stop
$437Alaska Airlines
Sat, Apr 11 - Wed, Apr 15
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
$443Alaska Airlines
Tue, May 19 - Sat, May 30
Alaska Airlines Logo
7:56 pm - 12:13 pm
STL
-
STS
18h 17m
1 stop
Alaska Airlines Logo
8:20 pm - 3:50 pm
STS
-
STL
17h 30m
1 stop
$445Alaska Airlines
Thu, May 21 - Fri, May 29
Alaska Airlines Logo
6:20 pm - 11:30 pm
STL
-
STS
7h 10m
1 stop
Alaska Airlines Logo
8:00 am - 5:06 pm
STS
-
STL
7h 06m
1 stop
$458Alaska 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$216
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 $216 for a one-way ticket and $343 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 11211 reviews
7.2Comfort
7.5Boarding
8.0Crew
6.4Food
6.9Entertainment
Airline reviews

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

2.0 MediocreLi Han, Jan 2026
STL - PHX
Read more American Airlines reviews

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.

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

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

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)