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Santa Rosa

$178+ Cheap flights from Dulles Intl (IAD) 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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — STS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Dulles Intl to Santa Rosa

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Santa Rosa (STS). 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 September 11, 2025.

Round-trip from

$375
(Hawaiian Airlines)

One-way from

$178
(Alaska Airlines)

Popular in

July

Cheapest in

November

Average price

$510
From Washington, D.C. Dulles Intl to Santa Rosa Sonoma County
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One-way flight from Washington, D.C. Dulles Intl to Santa Rosa Sonoma County
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Highest demand for flights based on searches. 32% potential increase in price ($286 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Dulles Intl to Santa Rosa

Cheapest flights from Dulles Intl to Santa Rosa
Explore the most affordable flight options available from Dulles Intl to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 9/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/115:40 pmIAD - STS
1 stop9h 17mHawaiian Airlines
Fri 11/146:49 amSTS - IAD
1 stop7h 24mHawaiian Airlines
Deal found 9/10$375
This Alaska Airlines deal was found by Cheapflights users on 9/8. 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 10/145:42 pmIAD - STS
1 stop19h 25mAlaska Airlines
Fri 10/172:30 pmSTS - IAD
1 stop30h 53mAlaska Airlines
Deal found 9/8$382
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 11/117:43 amIAD - STS
1 stop17h 22mAlaska Airlines
Fri 11/142:22 pmSTS - IAD
1 stop23h 18mAlaska Airlines
Deal found 9/9$402
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 10/166:25 amIAD - STS
2 stops20h 08mAlaska Airlines
Mon 10/207:42 pmSTS - IAD
1 stop18h 00mAlaska Airlines
Deal found 9/9$511
This Alaska Airlines deal was found by Cheapflights users on 9/8. 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 9/235:52 pmIAD - STS
1 stop18h 51mAlaska Airlines
Fri 10/37:52 pmSTS - IAD
1 stop17h 50mAlaska Airlines
Deal found 9/8$539
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 10/107:41 pmIAD - STS
1 stop29h 25mAlaska Airlines
Mon 10/137:42 pmSTS - IAD
1 stop18h 00mAlaska Airlines
Deal found 9/10$542

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 September 11, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Santa Rosa that are best for you.

Fly from

Dulles Intl

Fly to

Santa Rosa

Route

Depart

Return

Price

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

Tue 11/11

5:40 pm-11:57 pm

1 stop9h 17m

Santa Rosa Sonoma County

Fri 11/14

6:49 am-5:13 pm

1 stop7h 24m

$375

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

Tue 10/14

5:42 pm-10:07 am

1 stop19h 25m

Santa Rosa Sonoma County

Fri 10/17

2:30 pm-12:23 am

1 stop30h 53m

$382

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

Tue 11/11

5:40 pm-11:57 pm

1 stop9h 17m

Santa Rosa Sonoma County

Fri 11/14

2:22 pm-4:40 pm

1 stop23h 18m

$382

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

Thu 10/16

6:25 am-11:33 pm

2 stops20h 08m

Santa Rosa Sonoma County

Mon 10/20

7:42 pm-4:42 pm

1 stop18h 00m

$511

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

Tue 9/23

5:52 pm-9:43 am

1 stop18h 51m

Santa Rosa Sonoma County

Fri 10/3

7:52 pm-4:42 pm

1 stop17h 50m

$539

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

Sat 12/6

5:37 pm-11:08 pm

1 stop8h 31m

$178

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

Mon 11/3

5:40 pm-11:57 pm

1 stop9h 17m

$197

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

Tue 9/30

7:00 am-8:48 am

2 stops28h 48m

$233

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

Thu 10/16

6:25 am-11:33 pm

2 stops20h 08m

$272

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

Tue 9/30

9:15 am-8:23 pm

3 stops38h 08m

$307

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 12 results
1
2

Best time to book a flight from Dulles Intl to Santa Rosa

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

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Santa Rosa (average of $202). Flying from Washington, D.C. Dulles Intl Airport to Santa Rosa in June is currently the most expensive (average of $395). 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.

Reviews of airlines servicing Santa Rosa

Get insights into the airlines that provide service to Santa Rosa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Santa Rosa. Reviews last updated September 11, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Santa Rosa, such as Alaska Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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, D.C. Dulles Intl?

    Most people fly into Santa Rosa Sonoma County (STS) if they book a flight to Santa Rosa from Washington, D.C. Dulles Intl. On average, Sonoma County has 0 inbound flights from Washington, D.C. Dulles Intl per day from 2 airlines. Santa Rosa Sonoma County is conveniently located just 7.2 mi from Santa Rosa’s city center.

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

    For as low as $375, Hawaiian Airlines can have you in Santa Rosa from Washington, D.C. Dulles Intl Airport in 9h 17m. The distance from Washington, D.C. Dulles Intl Airport to Santa Rosa is about 2418 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Santa Rosa round-trip?

    Flying on Alaska Airlines is currently your cheapest option to Santa Rosa, with prices starting at $431. Another option worth looking into is American Airlines, starting at $693 round trip. These flights start at 27% lower than the current average price 3 months from now.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Santa Rosa (average of $202). Flying from Washington, D.C. Dulles Intl Airport to Santa Rosa in June is currently the most expensive (average of $395). 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 Dulles Intl to Santa Rosa

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Top 2 airlines flying from Dulles Intl to Santa Rosa

Discover the top 2 airlines that operate flights from Dulles Intl 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$431Average$543FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$693Average$838FlexibilityNo cancel feeOn-time71%

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