STL - STS

$215 Find Cheap Flights from St. Louis to Santa Rosa - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$366
Typical prices: $466-$574
Delta
Sun 11/18Fri 11/23
STL - STS • 2 stops
Cheapest one-way
$215
Typical prices: $259-$383
American Airlines
Mon 12/17
STL - STS • 1 stop
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Santa Rosa. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
September
Cheapest • 25% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Seattle/Tacoma Intl (SEA)
Cheapest • Avg $396 (round-trip)
Phoenix Sky Harbor Intl (PHX)
Shortest trip • 6h 26m (one-way)
Insights
Insights
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Flight Deals
Booking Insights
Flight Deals

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

 
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, Nov 18 - Mon, Nov 23
Delta Logo
9:45 am - 4:06 pmSTL  Lambert-St Louis-STS Santa Rosa Sonoma County
8h 21m2 stops Minneapolis St Paul Salt Lake City
Delta Logo
4:47 pm - 12:40 amSTS  Santa Rosa Sonoma County-STL Lambert-St Louis
5h 53m1 stop Salt Lake City
$366Delta
Sat, Dec 12 - Mon, Dec 14
Delta Logo
7:03 am - 4:05 pmSTL  Lambert-St Louis-STS Santa Rosa Sonoma County
11h 02m2 stops Atlanta Hartsfield-Jackson Salt Lake City
Delta Logo
11:27 am - 11:26 pmSTS  Santa Rosa Sonoma County-STL Lambert-St Louis
9h 59m2 stops Salt Lake City Minneapolis St Paul
$372Delta
Sat, Nov 14 - Wed, Nov 18
Alaska Airlines Logo
6:00 am - 9:48 amSTL  Lambert-St Louis-STS Santa Rosa Sonoma County
29h 48m2 stops Seattle/Tacoma Intl San Diego
Alaska Airlines Logo
2:26 pm - 11:59 pmSTS  Santa Rosa Sonoma County-STL Lambert-St Louis
31h 33m2 stops San Diego Seattle/Tacoma Intl
$383Alaska Airlines
Wed, Nov 18 - Mon, Nov 23
Southwest Logo
5:05 am - 12:15 pmSTL  Lambert-St Louis-STS Santa Rosa Sonoma County
9h 10m1 stop Las Vegas Harry Reid Intl
Southwest Logo
3:10 pm - 12:55 amSTS  Santa Rosa Sonoma County-STL Lambert-St Louis
7h 45m1 stop Las Vegas Harry Reid Intl
$400Southwest
Wed, Nov 18 - Mon, Nov 23
Southwest Logo
5:30 am - 12:15 pmSTL  Lambert-St Louis-STS Santa Rosa Sonoma County
8h 45m2 stops Dallas Love Field Las Vegas Harry Reid Intl
Southwest Logo
6:05 am - 7:10 pmSTS  Santa Rosa Sonoma County-STL Lambert-St Louis
11h 05m2 stops San Diego Omaha Eppley Airfield
$416Southwest
Wed, Nov 18 - Sun, Nov 22
Southwest Logo
6:25 am - 12:15 pmSTL  Lambert-St Louis-STS Santa Rosa Sonoma County
7h 50m1 stop Las Vegas Harry Reid Intl
Southwest Logo
3:10 pm - 12:55 amSTS  Santa Rosa Sonoma County-STL Lambert-St Louis
7h 45m1 stop Las Vegas Harry Reid Intl
$420Southwest
Wed, Nov 18 - Sun, Nov 22
Southwest Logo
6:30 am - 12:15 pmSTL  Lambert-St Louis-STS Santa Rosa Sonoma County
7h 45m2 stops Denver Intl Las Vegas Harry Reid Intl
Southwest Logo
3:10 pm - 12:55 amSTS  Santa Rosa Sonoma County-STL Lambert-St Louis
7h 45m1 stop Las Vegas Harry Reid Intl
$425Southwest
Wed, Nov 18 - Sun, Nov 22
American Airlines Logo
6:00 am - 3:56 pmSTL  Lambert-St Louis-STS Santa Rosa Sonoma County
11h 56m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
American Airlines Logo
1:29 pm - 11:35 pmSTS  Santa Rosa Sonoma County-STL Lambert-St Louis
8h 06m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
$430American Airlines
Fri, Jan 8 - Tue, Jan 12
Alaska Airlines Logo
3:54 pm - 12:59 pmSTL  Lambert-St Louis-STS Santa Rosa Sonoma County
23h 05m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
2:12 pm - 2:56 pmSTS  Santa Rosa Sonoma County-STL Lambert-St Louis
22h 44m2 stops San Diego Seattle/Tacoma Intl
$435Alaska Airlines
Tue, Jan 5 - Tue, Jan 12
Delta Logo
7:05 am - 12:04 pmSTL  Lambert-St Louis-STS Santa Rosa Sonoma County
6h 59m1 stop Salt Lake City
Delta Logo
12:44 pm - 9:42 pmSTS  Santa Rosa Sonoma County-STL Lambert-St Louis
6h 58m1 stop Salt Lake City
$439Delta
Booking Insights

Price, demand and travel trends for St. Louis to Santa Rosa flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

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

Round-trip flights from St. Louis to Santa Rosa typically range from $466 to $574. The lowest price found in the past 5 days was $366, on Delta.

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Key details for St. Louis to Santa Rosa flights

Cheapest flight

$215
The most popular month to fly with an average 41% increase in travelers.
One-way 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

Your St. Louis to Santa Rosa flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from St. Louis to Santa Rosa?

    Two cabin classes are available on flights from St. Louis to Santa Rosa:

    • Economy Class
    • First Class

  • How long is a flight from St. Louis to Santa Rosa?

    A nonstop flight from St. Louis to Santa Rosa takes 00m, covering 1,741 miles.

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

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a St. Louis to Santa Rosa flight?

    Round-trip flights from St. Louis to Santa Rosa range from $466 to $574, with an average of $530 over the past 12 months. Anything below $466 counts as a good deal.

  • Have flight prices from St. Louis to Santa Rosa changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $366 to $931. That means the highest observed fare was about 3x higher than the lowest one.

  • How are flight prices from St. Louis to Santa Rosa looking right now?

    One-way fares from St. Louis to Santa Rosa are currently lower than usual. Average one-way flight prices are about $316, which is 8% below the typical average for this route.

  • What car rental options are available at Santa Rosa Sonoma County Airport (STS)?

    Santa Rosa Sonoma County Airport (STS) hosts 5 major car rental companies, with daily rates averaging $74 for economy cars. Top options include:

    • Ace
    • Dollar
    • Enterprise Rent-A-Car
    • Hertz
    • Budget

  • Which airports can I use when flying from St. Louis to Santa Rosa?

    Flights from St. Louis to Santa Rosa usually depart from Lambert-St Louis (STL) and arrive at Santa Rosa Sonoma County (STS).

  • Which airports do connecting flights from St. Louis to Santa Rosa pass through?

    One-stop flights from St. Louis to Santa Rosa most commonly connect through:

    • Phoenix Sky Harbor Intl (PHX) - 36% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) - 29% of one-stop connections
    • Dallas/Fort Worth (DFW) - 14% of one-stop connections
    • Portland (PDX) - 14% of one-stop connections

  • Can I save money by using flexible dates for flights from St. Louis to Santa Rosa?

    Yes. Flexible dates can save you up to 33% on flights from St. Louis to Santa Rosa. Wednesday is the cheapest departure day at $396 round-trip on average, while Monday is the most expensive at $588, a difference of $192.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from St. Louis to Santa Rosa?

    Flying via Phoenix Sky Harbor Intl (PHX) gives the shortest average 1-stop total travel time at 6h 26m, compared with 6h 57m via Dallas/Fort Worth (DFW) and 7h 48m via Las Vegas Harry Reid Intl (LAS).

  • What is the time difference between St. Louis and Santa Rosa?

    Santa Rosa is 2 hours behind St. Louis (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking St. Louis to Santa Rosa flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Monday. On this route, Wednesday flights average $396, about $192 less than Monday fares (33% savings) based on the last 12 months.
  • If you can choose when to travel, plan your St. Louis to Santa Rosa trip for September. Fares historically average $396 round-trip in that month - typically $192 less than the most expensive month, which is March (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Santa Rosa Sonoma County Airport.

    • Hilton Garden Inn Sonoma County Airport

More options for your flight from St. Louis to Santa Rosa

Complete your trip to Santa Rosa with a hotel stay or car rental

Car rentals in Santa Rosa
Hotels in Santa Rosa
Vacations in Santa Rosa