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Santa Rosa

$89+ Cheap flights from Washington to Santa Rosa (STS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — STS
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap flight deals from Washington to Santa Rosa

Cheapest flights from Washington to Santa Rosa
Explore the most affordable flight options available from Washington to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This Alaska Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/253:00 pm
PDX
-
STS
Nonstop1h 47m
Alaska Airlines
Sat 2/288:00 am
STS
-
PDX
Nonstop1h 44m
Alaska Airlines
Deal found 2/2$137
This Alaska Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/148:30 am
SEA
-
STS
Nonstop2h 02m
Alaska Airlines
Sat 3/286:53 pm
STS
-
SEA
Nonstop2h 05m
Alaska Airlines
Deal found 2/3$137
This Alaska Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:00 am
PDX
-
STS
Nonstop1h 49m
Alaska Airlines
Wed 5/207:02 pm
STS
-
PDX
Nonstop1h 46m
Alaska Airlines
Deal found 2/3$147
This Alaska Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/147:50 pm
SEA
-
STS
Nonstop2h 02m
Alaska Airlines
Thu 3/266:53 pm
STS
-
SEA
Nonstop2h 05m
Alaska Airlines
Deal found 2/3$147
This Alaska Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/177:50 pm
SEA
-
STS
Nonstop2h 02m
Alaska Airlines
Wed 3/256:53 pm
STS
-
SEA
Nonstop2h 05m
Alaska Airlines
Deal found 2/2$157
This Alaska Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/147:50 pm
SEA
-
STS
Nonstop2h 02m
Alaska Airlines
Fri 3/276:53 pm
STS
-
SEA
Nonstop2h 05m
Alaska Airlines
Deal found 2/1$162
This Alaska Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:52 pm
PDX
-
STS
1 stop6h 00m
Alaska Airlines
Thu 3/197:30 am
STS
-
PDX
Nonstop1h 40m
Alaska Airlines
Deal found 2/3$167
This Alaska Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/159:48 pm
SEA
-
STS
Nonstop2h 02m
Alaska Airlines
Fri 3/276:53 pm
STS
-
SEA
Nonstop2h 05m
Alaska Airlines
Deal found 2/1$167
This Alaska Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/174:00 pm
SEA
-
STS
Nonstop2h 01m
Alaska Airlines
Mon 4/206:53 pm
STS
-
SEA
Nonstop2h 05m
Alaska Airlines
Deal found 2/3$177
This Alaska Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/23:50 pm
SEA
-
STS
1 stop8h 07m
Alaska Airlines
Tue 3/38:00 am
STS
-
SEA
1 stop6h 41m
Alaska Airlines
Deal found 2/2$182
This Alaska Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/67:15 am
PDX
-
STS
Nonstop1h 59m
Alaska Airlines
Mon 3/98:00 am
STS
-
PDX
Nonstop1h 44m
Alaska Airlines
Deal found 2/3$187
This Alaska Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/257:50 pm
SEA
-
STS
Nonstop2h 02m
Alaska Airlines
Tue 3/37:00 am
STS
-
SEA
1 stop6h 59m
Alaska Airlines
Deal found 2/2$187

Find flight deals from Washington to Santa Rosa

Keep the following information in mind while searching for Washington to Santa Rosa flight deals. Data was last updated February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$137
(Expedia)

One-way from

$89
(Alaska Airlines)

Popular in

December

Cheapest in

March

Average price

$237

Good round-trip deal

$207 or less

Good one-way deal

$123 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-San Francisco flights.
Search Deals
From Washington to Santa Rosa Sonoma County
Search Deals
One-way flight from Washington to Santa Rosa Sonoma County
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Washington to Santa Rosa Sonoma County.
Search Deals
Price to beat on a one-way flight from Washington to Santa Rosa Sonoma County.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Santa Rosa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Washington to Santa Rosa that are best for you.

Fly from

Washington

Fly to

Santa Rosa

Route

Depart

Return

Price

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Wed 2/25

3:00 pm-4:47 pm

Nonstop1h 47m

Santa Rosa Sonoma County

Sat 2/28

8:00 am-9:44 am

Nonstop1h 44m

$137

SeattleSanta Rosa

SEA - STS

SEASTS

Seattle/Tacoma Intl

Sat 3/14

7:50 pm-9:52 pm

Nonstop2h 02m

Santa Rosa Sonoma County

Wed 3/25

6:53 pm-8:58 pm

Nonstop2h 05m

$137

SeattleSanta Rosa

SEA - STS

SEASTS

Seattle/Tacoma Intl

Wed 3/18

4:00 pm-6:01 pm

Nonstop2h 01m

Santa Rosa Sonoma County

Wed 3/25

6:53 pm-8:58 pm

Nonstop2h 05m

$137

SeattleSanta Rosa

SEA - STS

SEASTS

Seattle/Tacoma Intl

Wed 2/25

7:50 pm-9:52 pm

Nonstop2h 02m

Santa Rosa Sonoma County

Sat 2/28

7:57 pm-10:05 pm

Nonstop2h 08m

$137

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Thu 5/14

7:00 am-8:49 am

Nonstop1h 49m

Santa Rosa Sonoma County

Wed 5/20

7:02 pm-8:48 pm

Nonstop1h 46m

$147

SeattleSanta Rosa

SEA - STS

SEASTS

Seattle/Tacoma Intl

Mon 3/16

9:48 pm-11:50 pm

Nonstop2h 02m

Santa Rosa Sonoma County

Wed 3/25

6:53 pm-8:58 pm

Nonstop2h 05m

$147

SeattleSanta Rosa

SEA - STS

SEASTS

Seattle/Tacoma Intl

Tue 3/17

7:50 pm-9:52 pm

Nonstop2h 02m

Santa Rosa Sonoma County

Fri 3/27

6:53 pm-8:58 pm

Nonstop2h 05m

$147

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Tue 3/24

9:35 pm-11:15 pm

Nonstop1h 40m

Santa Rosa Sonoma County

Tue 3/31

7:30 am-9:10 am

Nonstop1h 40m

$157

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Thu 2/26

7:15 am-9:14 am

Nonstop1h 59m

Santa Rosa Sonoma County

Sat 2/28

8:00 am-9:44 am

Nonstop1h 44m

$157

PortlandSanta Rosa

PDX - STS

PDXSTS

Portland

Fri 2/27

7:15 am-9:14 am

Nonstop1h 59m

Santa Rosa Sonoma County

Sat 2/28

8:00 am-9:44 am

Nonstop1h 44m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 51 results
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Best time to book a flight from Washington to Santa Rosa

Have a flexible travel schedule? Discover the best time to fly to Santa Rosa from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Santa Rosa

What is the cheapest month to book a flight from State of Washington to Santa Rosa?

Currently, April is the cheapest month in which you can book a flight from State of Washington to Santa Rosa (average of $62). Flying from State of Washington to Santa Rosa in November is currently the most expensive (average of $108). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WA to STS?

Find hourly flight availability from Washington to Santa Rosa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 3, 2026.

A simple way to save on the total cost of your ticket is to fly from State of Washington to Santa Rosa in the afternoon. If you’re flexible enough to do this you can expect to save up to 76% on your trip compared to booking a flight at noon.

Weekly flight availability from State of Washington to Santa Rosa

Explore weekly flight availability from Washington to Santa Rosa. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 3, 2026.

The most flights from USWA to STS are scheduled on a Monday (6 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).

Related info for your journey

Find useful and relevant information for your journey from Washington to Santa Rosa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Santa Rosa from Washington?

    Located just 7.2 mi from the city center, Santa Rosa Sonoma County (STS) is the airport most travelers will use when flying to Santa Rosa from Washington.

  • How popular is this State of Washington to Santa Rosa flight route?

    This flight path from Washington to Santa Rosa Sonoma County was viewed by 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from State of Washington to Santa Rosa?

    Alaska Airlines can get you from State of Washington to Santa Rosa in just under 1h 38m. Your travel time will be generally consistent. Airlines will cover a distance of 489 mi. Most flights are nonstop.

  • What are the most popular routes from State of Washington to Santa Rosa?

    Most travelers choose Seattle/Tacoma Intl - Santa Rosa Sonoma County, Portland - Santa Rosa Sonoma County or Spokane - Santa Rosa Sonoma County when deciding on the best route from State of Washington to Santa Rosa.

  • What are the most reliable airlines from State of Washington to Santa Rosa?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from State of Washington to Santa Rosa on time: Hawaiian Airlines (62%), Horizon Air (57%), Alaska Airlines (55%).

  • What are the cheapest flights from State of Washington to Santa Rosa?

    On average you can expect to pay $318 for a flight from State of Washington to Santa Rosa. The cheapest flight overall is $78 while the most popular route, (Seattle/Tacoma Intl - Santa Rosa Sonoma County) is currently priced at $137.

  • Can I find deals for flights from Washington to Santa Rosa that include hotel bookings?

    Yes. In addition to deals on Washington to Santa Rosa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Santa Rosa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Santa Rosa.

  • Can I find deals for business class flights from Washington to Santa Rosa?

    Yes. Cheapflights offers flight deals from Washington to Santa Rosa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to Santa Rosa?

    Currently, April is the cheapest month in which you can book a flight from State of Washington to Santa Rosa (average of $62). Flying from State of Washington to Santa Rosa in November is currently the most expensive (average of $108). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Santa Rosa?

Book flights to Santa Rosa if you plan to visit one of these locations
Fort Bragg
Ukiah

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Alternative routes for Washington to Santa Rosa

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Washington to Santa Rosa

Discover the top 2 airlines that operate flights from Washington to Santa Rosa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$157Average$346FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$186Average$307FlexibilityNo cancel feeOn-time85%

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