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Washington, D.C.

$177+ Cheap flights from Santa Rosa (STS) to Washington, D.C. (WAS)

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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
STS — WAS
Apr 28 — May 51
Tue 4/28
Tue 5/5
1 adult, Economy
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Cheap flight deals from Santa Rosa to Washington, D.C.

Cheapest flights from Santa Rosa to Washington, D.C.
Explore the most affordable flight options available from Santa Rosa to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 29, 2026.

This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 5/167:06 am
STS
-
IAD
1 stop7h 36m
Alaska Airlines
Tue 5/197:37 pm
IAD
-
STS
1 stop31h 13m
Alaska Airlines
Deal found 3/25$385
This Alaska Airlines deal was found by Cheapflights users on 3/26. 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 5/57:23 am
STS
-
DCA
1 stop10h 37m
Alaska Airlines
Wed 5/68:59 am
DCA
-
STS
1 stop13h 07m
Alaska Airlines
Deal found 3/26$403
This Expedia deal was found by Cheapflights users on 3/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/38:00 pm
STS
-
IAD
1 stop18h 41m
Alaska Airlines
Mon 5/47:20 pm
IAD
-
STS
1 stop20h 01m
Alaska Airlines
Deal found 3/24$439
This American Airlines deal was found by Cheapflights users on 3/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/312:43 pm
STS
-
DCA
1 stop8h 16m
American Airlines
Mon 6/85:00 am
DCA
-
STS
1 stop10h 05m
American Airlines
Deal found 3/25$444
This Southwest deal was found by Cheapflights users on 3/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/34:35 pm
STS
-
DCA
2 stops15h 35m
Southwest
Mon 6/82:00 pm
DCA
-
STS
2 stops12h 30m
Southwest
Deal found 3/25$457
This Southwest deal was found by Cheapflights users on 3/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2011:00 am
STS
-
BWI
1 stop9h 55m
Southwest
Sat 4/2512:10 pm
BWI
-
STS
1 stop11h 20m
Southwest
Deal found 3/27$463
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 5/167:06 am
STS
-
IAD
1 stop7h 36m
Alaska Airlines
Mon 5/257:37 pm
IAD
-
STS
1 stop31h 19m
Alaska Airlines
Deal found 3/25$465
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 4/216:53 pm
STS
-
IAD
1 stop7h 47m
Alaska Airlines
Sat 4/259:00 am
IAD
-
STS
2 stops17h 01m
Alaska Airlines
Deal found 3/25$468
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 6/37:01 am
STS
-
IAD
1 stop7h 41m
Alaska Airlines
Mon 6/86:00 am
IAD
-
STS
1 stop9h 17m
Alaska Airlines
Deal found 3/25$471
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 5/210:01 am
STS
-
DCA
1 stop7h 59m
Alaska Airlines
Mon 5/49:59 am
DCA
-
STS
1 stop16h 02m
Alaska Airlines
Deal found 3/25$472
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 5/137:01 am
STS
-
IAD
1 stop7h 41m
Alaska Airlines
Tue 5/197:37 pm
IAD
-
STS
1 stop31h 13m
Alaska Airlines
Deal found 3/25$473
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 6/38:26 pm
STS
-
BWI
1 stop19h 09m
Alaska Airlines
Mon 6/84:17 pm
BWI
-
STS
1 stop10h 13m
Alaska Airlines
Deal found 3/25$473

Find flight deals from Santa Rosa to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Santa Rosa (STS) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$385
(Alaska Airlines)

One-way from

$177
(Southwest)

Popular in

December

Cheapest in

January

Average price

$469
Provider with most accurate pricing for San Francisco-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Washington, D.C. (WAS) flights.
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From Santa Rosa Sonoma County to Washington, D.C. (WAS)
Search Deals
One-way flight from Santa Rosa Sonoma County to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in March 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Santa Rosa to Washington, D.C. 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 March 29, 2026.
Use the filters below to find and compare flights from Santa Rosa to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

Tue 5/5

7:23 am-9:00 pm

1 stop10h 37m

Washington, D.C. Reagan-National

Wed 5/6

8:59 am-7:06 pm

1 stop13h 07m

$403

Santa RosaBaltimore

STS - BWI

STSBWI

Santa Rosa Sonoma County

Mon 4/20

11:00 am-12:25 am

2 stops10h 25m

Baltimore/Washington

Sat 4/25

12:10 pm-8:30 pm

1 stop11h 20m

$468

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

Sat 5/2

10:01 am-9:00 pm

1 stop7h 59m

Washington, D.C. Reagan-National

Mon 5/4

9:59 am-11:01 pm

1 stop16h 02m

$472

Santa RosaBaltimore

STS - BWI

STSBWI

Santa Rosa Sonoma County

Wed 6/3

8:26 pm-6:35 pm

1 stop19h 09m

Baltimore/Washington

Mon 6/8

4:17 pm-11:30 pm

1 stop10h 13m

$473

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Tue 4/21

6:53 pm-5:40 am

1 stop7h 47m

Washington, D.C. Dulles Intl

Sun 4/26

7:10 am-10:57 pm

1 stop18h 47m

$478

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Sat 4/25

7:46 pm-5:50 am

1 stop31h 04m

Washington, D.C. Dulles Intl

Tue 4/28

9:00 am-12:21 pm

1 stop30h 21m

$483

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Mon 4/20

7:46 pm-5:22 pm

1 stop18h 36m

Washington, D.C. Dulles Intl

Sat 4/25

9:00 am-10:57 pm

1 stop16h 57m

$494

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Sat 5/2

10:01 am-5:41 pm

1 stop28h 40m

Washington, D.C. Dulles Intl

Mon 5/4

6:47 pm-7:06 pm

1 stop27h 19m

$498

Santa RosaBaltimore

STS - BWI

STSBWI

Santa Rosa Sonoma County

Wed 6/3

7:01 am-6:28 am

2 stops20h 27m

Baltimore/Washington

Sun 6/7

4:17 pm-11:30 pm

1 stop10h 13m

$509

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Sat 5/2

7:46 pm-12:09 am

1 stop25h 23m

Washington, D.C. Dulles Intl

Wed 5/6

7:20 pm-10:57 pm

1 stop30h 37m

$518

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 57 resultsSorted by cheapest first
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Best time to book a flight from Santa Rosa to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Santa Rosa 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 Santa Rosa to Washington, D.C.

What is the cheapest month to book a flight from Santa Rosa to Washington, D.C.?

Currently, May is the cheapest month in which you can book a flight from Santa Rosa to Washington, D.C. (average of $118). Flying from Santa Rosa to Washington, D.C. in March is currently the most expensive (average of $241). 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.

Related info for your journey

Find useful and relevant information for your journey from Santa Rosa to Washington, D.C.. 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 from for flights from Santa Rosa to Washington, D.C.?

    Santa Rosa Sonoma County (STS) is the airport you will fly out of if you book a flight from Santa Rosa to Washington, D.C.. You should not have trouble finding flights to Washington, D.C. from Sonoma County; the airport handles an average of 0 outbound flights to Washington, D.C. per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Santa Rosa airport to Washington, D.C.. It is only a 7.2 mi journey to Sonoma County (STS) from Santa Rosa’s city center.

  • How long is the flight from Santa Rosa to Washington, D.C.?

    For as low as $479, Alaska Airlines can have you in Washington, D.C. from Santa Rosa in 10h 25m. Airlines will cover a distance of 2455 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Santa Rosa to Washington, D.C. round-trip?

    According to our current data, Alaska Airlines ($296), offers the cheapest pricing from Santa Rosa to Washington, D.C..

  • What are the most popular routes from Santa Rosa to Washington, D.C.?

    When deciding which route to take from Santa Rosa to Washington, D.C. consider Santa Rosa Sonoma County - Washington, D.C. Dulles Intl, Santa Rosa Sonoma County - Washington, D.C. Reagan-National or Santa Rosa Sonoma County - Baltimore/Washington as they are the most popular.

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

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

  • How can I find direct flights from Santa Rosa to Washington, D.C.?

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

  • Can I find deals for business class flights from Santa Rosa to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Santa Rosa to Washington, D.C. 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 Santa Rosa to Washington, D.C.?

    Currently, May is the cheapest month in which you can book a flight from Santa Rosa to Washington, D.C. (average of $118). Flying from Santa Rosa to Washington, D.C. in March is currently the most expensive (average of $241). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Owings Mills
Arlington
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park
Cordova

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Santa Rosa to Washington, D.C.

Discover the top airline that operate flights from Santa Rosa to Washington, D.C.. 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 March 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$296Average$487FlexibilityNo cancel feeOn-time75%

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