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).

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

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) - 35% of one-stop connections • Las Vegas Harry Reid Intl (LAS) - 24% of one-stop connections • Seattle/Tacoma Intl (SEA) - 18% of one-stop connections • Dallas/Fort Worth (DFW) - 12% of one-stop connections Phoenix Sky Harbor Intl (PHX) handles the largest share of one-stop connections on this route.

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

Yes. Being flexible with your travel dates can save you up to 33% on the St. Louis to Santa Rosa route. 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 long is a flight from St. Louis to Santa Rosa?

A nonstop flight from St. Louis to Santa Rosa takes 0h 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 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 $243, which is 33% below the typical average for this route.

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 40m, 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.

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 starting from around $24 for economy cars. Top options include: · Ace · Dollar · Enterprise Rent-A-Car · Hertz · Budget

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.

What is the cheapest airline to fly from St. Louis to Santa Rosa?

Alaska Airlines ($263) and Southwest ($409) are the cheapest airlines to fly round-trip from St. Louis to Santa Rosa according to KAYAK data over the last 5 days.

What is the most popular layover airport when flying from St. Louis to Santa Rosa?

Phoenix Sky Harbor Intl (PHX) is the most popular layover for the St. Louis to Santa Rosa route. 35% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via PHX.

What is the cheapest layover airport when flying from St. Louis to Santa Rosa?

Flights via Portland (PDX) offer the most affordable fares, with an average round-trip price of $447. Based on KAYAK data over the past 3 months.

When flying from St. Louis to Santa Rosa which airport offers the shortest layover?

Phoenix Sky Harbor Intl (PHX) had the shortest average connection time for St. Louis to Santa Rosa layovers at 230 minutes over the past 3 months.

$205 CHEAP FLIGHTS from St. Louis to Santa Rosa (STL - STS)

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$263

Typical prices: $466-$574

Alaska Airlines

Fri 11/9Tue 11/13

STL - STS • 2 stops

Cheapest one-way

$205

Typical prices: $306-$401

Alaska Airlines

Fri 9/28

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

When to travel

September

Cheapest • 25% price drop

June

Most popular

Good to know

Top layover airports

Portland (PDX)

Cheapest • Avg $447 (round-trip)

Phoenix Sky Harbor Intl (PHX)

Shortest trip • 6h 40m (one-way)

Insights

Start a new search

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

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

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from St. Louis to Santa Rosa

Mon, Nov 9 - Fri, Nov 13

7:00 am - 10:25 pmSTL Lambert-St Louis-STS Santa Rosa Sonoma County

17h 25m2 stops Seattle/Tacoma Intl San Diego

6:00 am - 11:59 pmSTS Santa Rosa Sonoma County-STL Lambert-St Louis

15h 59m2 stops San Diego Seattle/Tacoma Intl

$263Alaska Airlines

Mon, Feb 22 - Sat, Feb 27

7:00 am - 1:28 pmSTL Lambert-St Louis-STS Santa Rosa Sonoma County

8h 28m1 stop Seattle/Tacoma Intl

10:00 am - 11:44 pmSTS Santa Rosa Sonoma County-STL Lambert-St Louis

11h 44m2 stops Las Vegas Harry Reid Intl Seattle/Tacoma Intl

$331Alaska Airlines

Mon, Nov 9 - Fri, Nov 13

7:00 am - 10:09 pmSTL Lambert-St Louis-STS Santa Rosa Sonoma County

17h 09m1 stop Seattle/Tacoma Intl

6:00 am - 11:59 pmSTS Santa Rosa Sonoma County-STL Lambert-St Louis

15h 59m2 stops San Diego Seattle/Tacoma Intl

$341Alaska Airlines

Mon, Feb 22 - Sat, Feb 27

3:24 pm - 10:09 amSTL Lambert-St Louis-STS Santa Rosa Sonoma County

20h 45m2 stops Seattle/Tacoma Intl Burbank Bob Hope

10:00 am - 11:44 pmSTS Santa Rosa Sonoma County-STL Lambert-St Louis

11h 44m2 stops Las Vegas Harry Reid Intl Seattle/Tacoma Intl

$364Alaska Airlines

Thu, Oct 1 - Mon, Oct 5

3:09 pm - 9:59 pmSTL Lambert-St Louis-STS Santa Rosa Sonoma County

8h 50m1 stop Seattle/Tacoma Intl

4:35 pm - 11:59 pmSTS Santa Rosa Sonoma County-STL Lambert-St Louis

29h 24m2 stops San Diego Seattle/Tacoma Intl

$406Alaska Airlines

Sat, Nov 7 - Mon, Nov 9

5:55 am - 11:15 amSTL Lambert-St Louis-STS Santa Rosa Sonoma County

7h 20m1 stop Las Vegas Harry Reid Intl

3:10 pm - 12:50 amSTS Santa Rosa Sonoma County-STL Lambert-St Louis

7h 40m1 stop Las Vegas Harry Reid Intl

$409Southwest

Mon, Feb 22 - Sat, Feb 27

7:50 am - 3:05 pmSTL Lambert-St Louis-STS Santa Rosa Sonoma County

9h 15m1 stop Las Vegas Harry Reid Intl

11:05 am - 9:40 pmSTS Santa Rosa Sonoma County-STL Lambert-St Louis

8h 35m1 stop Las Vegas Harry Reid Intl

$409Southwest

Mon, Nov 9 - Fri, Nov 13

7:00 am - 10:25 pmSTL Lambert-St Louis-STS Santa Rosa Sonoma County

17h 25m2 stops Seattle/Tacoma Intl San Diego

6:00 am - 11:59 pmSTS Santa Rosa Sonoma County-STL Lambert-St Louis

15h 59m2 stops San Diego Seattle/Tacoma Intl

$413Alaska Airlines

Mon, Nov 9 - Thu, Nov 12

6:40 am - 4:06 pmSTL Lambert-St Louis-STS Santa Rosa Sonoma County

11h 26m2 stops Detroit Metropolitan Wayne County Salt Lake City

4:47 pm - 12:40 amSTS Santa Rosa Sonoma County-STL Lambert-St Louis

5h 53m1 stop Salt Lake City

$414Delta

Mon, Nov 9 - Mon, Nov 16

6:40 am - 4:06 pmSTL Lambert-St Louis-STS Santa Rosa Sonoma County

11h 26m2 stops Detroit Metropolitan Wayne County Salt Lake City

4:47 pm - 12:40 amSTS Santa Rosa Sonoma County-STL Lambert-St Louis

5h 53m1 stop Salt Lake City

$414Delta

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 from St. Louis to Santa Rosa with more confidence.

Prices

Airlines

Layovers

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

Round-trip flights from St. Louis to Santa Rosa start at $263. Prices are below average for this route right now, with typical round-trip fares ranging from $466 to $574. The lowest price found in the past 5 days was $263 on Alaska Airlines.

Find deals

Low season	December
High season	June
Cheapest flight	$205

Most popular time to fly with an average 8% increase in price.

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.

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).
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
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) - 35% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 24% of one-stop connections
• Seattle/Tacoma Intl (SEA) - 18% of one-stop connections
• Dallas/Fort Worth (DFW) - 12% of one-stop connections

Phoenix Sky Harbor Intl (PHX) handles the largest share of one-stop connections on this route.
Can I save money by using flexible dates for flights from St. Louis to Santa Rosa?
Yes. Being flexible with your travel dates can save you up to 33% on the St. Louis to Santa Rosa route. 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 long is a flight from St. Louis to Santa Rosa?
A nonstop flight from St. Louis to Santa Rosa takes 0h 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 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 $243, which is 33% below the typical average for this route.
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 40m, 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.
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 starting from around $24 for economy cars. Top options include:
· Ace
· Dollar
· Enterprise Rent-A-Car
· Hertz
· Budget
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.

If your dates can be flexible, aim for a Wednesday departure instead of Monday. On this route, Wednesday flights average $396 - about $192 less than Monday (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

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

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on your arrival and departure airports

St. Louis (STL)

Santa Rosa (STS)

STL - STS

$205 Find Cheap Flights from St. Louis to Santa Rosa - Compare and Save

Everything you should know

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

Recent round-trip flight deals from St. Louis to Santa Rosa

Recent one-way flight deals from St. Louis to Santa Rosa

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

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

What is the cheapest airline to fly from St. Louis to Santa Rosa?

What is the most popular layover airport when flying from St. Louis to Santa Rosa?

What is the cheapest layover airport when flying from St. Louis to Santa Rosa?

When flying from St. Louis to Santa Rosa which airport offers the shortest layover?

Key details for St. Louis to Santa Rosa flights

Low season

High season

Cheapest flight

When to book flights from St. Louis to Santa Rosa

Your St. Louis to Santa Rosa flight questions, answered

Your guide to booking St. Louis to Santa Rosa flights

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

Information on your arrival and departure airports

Cabin class types available on flights from St. Louis to Santa Rosa

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

Find direct flights to and from St. Louis and Santa Rosa

Flights to other popular destinations

Flights from domestic origins to Santa Rosa

Choose which airport to fly into in Santa Rosa

Find deals for your return flight