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Washington, D.C.

$172+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
STS — WAS
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
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 February 5, 2026.

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 4/287:23 am
STS
-
IAD
2 stops13h 46m
Alaska Airlines
Thu 4/309:00 am
IAD
-
STS
2 stops17h 27m
Alaska Airlines
Deal found 2/3$363
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/411:07 am
STS
-
IAD
2 stops27h 20m
Alaska Airlines
Wed 3/117:05 am
IAD
-
STS
2 stops14h 57m
Alaska Airlines
Deal found 2/2$378
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 3/37:57 pm
STS
-
BWI
1 stop18h 49m
Alaska Airlines
Tue 3/106:46 pm
BWI
-
STS
1 stop18h 46m
Alaska Airlines
Deal found 2/2$380
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 3/37:57 pm
STS
-
IAD
1 stop18h 23m
Alaska Airlines
Tue 3/107:05 am
IAD
-
STS
1 stop17h 47m
Alaska Airlines
Deal found 2/2$383
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 3/47:57 pm
STS
-
DCA
1 stop23h 02m
Alaska Airlines
Mon 3/95:00 pm
DCA
-
STS
1 stop20h 32m
Alaska Airlines
Deal found 2/2$388
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 4/287:10 pm
STS
-
DCA
2 stops19h 49m
Alaska Airlines
Thu 4/308:59 am
DCA
-
STS
1 stop17h 28m
Alaska Airlines
Deal found 2/3$413
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 3/47:57 pm
STS
-
DCA
1 stop23h 02m
Alaska Airlines
Sat 3/75:06 pm
DCA
-
STS
1 stop18h 08m
Alaska Airlines
Deal found 2/2$418
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.
Thu 3/57:57 pm
STS
-
DCA
1 stop23h 02m
Alaska Airlines
Mon 3/95:00 pm
DCA
-
STS
1 stop31h 52m
Alaska Airlines
Deal found 2/2$423
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 3/47:57 pm
STS
-
DCA
1 stop23h 02m
Alaska Airlines
Sun 3/89:59 am
DCA
-
STS
1 stop27h 12m
Alaska Airlines
Deal found 2/2$448
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.
Thu 3/57:57 pm
STS
-
DCA
1 stop23h 02m
Alaska Airlines
Sat 3/75:06 pm
DCA
-
STS
1 stop18h 08m
Alaska Airlines
Deal found 2/2$453
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.
Fri 3/68:00 am
STS
-
BWI
2 stops30h 46m
Alaska Airlines
Mon 3/96:46 pm
BWI
-
STS
1 stop18h 46m
Alaska Airlines
Deal found 2/2$463
This Orbitz deal was found by Cheapflights users on 2/4. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/57:15 am
STS
-
BWI
2 stops31h 31m
Alaska Airlines
Mon 3/96:46 pm
BWI
-
STS
2 stops27h 16m
Alaska Airlines
Deal found 2/4$465

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 February 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$363
(Alaska Airlines)

One-way from

$172
(Alaska Airlines)

Popular in

December

Cheapest in

February

Average price

$382
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. 7% potential increase in price ($34 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 February 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 February 5, 2026.
Use the filters below to find and compare flights from Santa Rosa to Washington, D.C. that are best for you.

Fly from

Santa Rosa

Fly to

Washington, D.C.

Route

Depart

Return

Price

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Tue 4/28

10:01 am-5:41 pm

1 stop28h 40m

Washington, D.C. Dulles Intl

Thu 4/30

9:00 am-11:27 pm

2 stops17h 27m

$378

Santa RosaBaltimore

STS - BWI

STSBWI

Santa Rosa Sonoma County

Tue 3/3

7:57 pm-5:46 pm

1 stop18h 49m

Baltimore/Washington

Tue 3/10

6:46 pm-10:32 am

1 stop18h 46m

$380

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Tue 3/3

7:57 pm-5:20 pm

1 stop18h 23m

Washington, D.C. Dulles Intl

Tue 3/10

7:05 am-9:52 pm

1 stop17h 47m

$383

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

Wed 3/4

7:57 pm-9:59 pm

1 stop23h 02m

Washington, D.C. Reagan-National

Mon 3/9

5:00 pm-10:32 am

1 stop20h 32m

$388

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

Tue 4/28

7:10 pm-5:59 pm

2 stops19h 49m

Washington, D.C. Reagan-National

Thu 4/30

8:59 am-11:27 pm

1 stop17h 28m

$413

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

Fri 3/6

7:57 pm-9:59 pm

1 stop23h 02m

Washington, D.C. Reagan-National

Mon 3/9

5:00 pm-9:52 pm

1 stop31h 52m

$418

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

Wed 3/4

7:57 pm-9:59 pm

1 stop23h 02m

Washington, D.C. Reagan-National

Sat 3/7

5:06 pm-8:14 am

1 stop18h 08m

$418

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

Thu 3/5

7:57 pm-9:59 pm

1 stop23h 02m

Washington, D.C. Reagan-National

Mon 3/9

5:00 pm-9:52 pm

1 stop31h 52m

$423

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

Wed 3/4

7:57 pm-9:59 pm

1 stop23h 02m

Washington, D.C. Reagan-National

Sun 3/8

9:59 am-10:11 am

1 stop27h 12m

$448

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

Thu 3/5

7:57 pm-9:59 pm

1 stop23h 02m

Washington, D.C. Reagan-National

Sat 3/7

5:06 pm-8:14 am

1 stop18h 08m

$453

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

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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 July is currently the most expensive (average of $238). 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 $378, Alaska Airlines can have you in Washington, D.C. from Santa Rosa in 28h 40m. Airlines will cover a distance of 2418 mi.

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

    According to our current data, Alaska Airlines ($482), 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 - Baltimore/Washington or Santa Rosa Sonoma County - Washington, D.C. Reagan-National 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 July is currently the most expensive (average of $238). 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
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Upper Marlboro
Manassas
Largo
Bowie
McLean
Clinton

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Alternative routes for Santa Rosa to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
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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 February 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$482Average$570FlexibilityNo cancel feeOn-time75%

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