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Santa Rosa

$183+ 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — STS
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
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Cheap 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 diciembre 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/8. 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.
mar. 12/306:29 pmIAD - STS
1 stop8h 30mAlaska Airlines
lun. 1/56:45 amSTS - IAD
1 stop7h 36mAlaska Airlines
Deal found 12/8$830
This Alaska Airlines deal was found by Cheapflights users on 12/10. 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.
mié. 12/316:29 pmIAD - STS
1 stop19h 54mAlaska Airlines
dom. 1/48:17 pmSTS - IAD
2 stops18h 26mAlaska Airlines
Deal found 12/10$831
This Alaska Airlines deal was found by Cheapflights users on 12/9. 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.
mié. 12/177:34 amIAD - STS
2 stops34h 39mAlaska Airlines
mar. 12/236:45 amSTS - IAD
1 stop7h 36mAlaska Airlines
Deal found 12/9$834
This Alaska Airlines deal was found by Cheapflights users on 12/8. 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.
lun. 12/296:29 pmIAD - STS
1 stop8h 30mAlaska Airlines
lun. 1/56:45 amSTS - IAD
1 stop7h 36mAlaska Airlines
Deal found 12/8$888
This Alaska Airlines deal was found by Cheapflights users on 12/8. 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.
dom. 12/216:29 pmIAD - STS
1 stop8h 30mAlaska Airlines
dom. 1/47:42 pmSTS - IAD
1 stop18h 39mAlaska Airlines
Deal found 12/8$920
This Alaska Airlines deal was found by Cheapflights users on 12/8. 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.
mié. 12/246:29 pmIAD - STS
1 stop19h 54mAlaska Airlines
dom. 1/47:42 pmSTS - IAD
1 stop18h 39mAlaska Airlines
Deal found 12/8$928
This Alaska Airlines deal was found by Cheapflights users on 12/10. 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.
jue. 12/117:34 amIAD - STS
2 stops19h 18mAlaska Airlines
jue. 12/186:45 amSTS - IAD
1 stop7h 36mAlaska Airlines
Deal found 12/10$937
This Alaska Airlines deal was found by Cheapflights users on 12/10. 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.
mié. 12/175:37 pmIAD - STS
1 stop8h 17mAlaska Airlines
dom. 12/216:45 amSTS - IAD
1 stop7h 36mAlaska Airlines
Deal found 12/10$940
This Alaska Airlines deal was found by Cheapflights users on 12/9. 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.
mié. 12/177:34 amIAD - STS
2 stops29h 57mAlaska Airlines
lun. 12/226:45 amSTS - IAD
1 stop7h 36mAlaska Airlines
Deal found 12/9$979

Find 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 diciembre 12, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$334
(Alaska Airlines)

One-way from

$183
(Alaska Airlines)

Popular in

December

Cheapest in

February

Average price

$487
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Santa Rosa Sonoma County flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Santa Rosa Sonoma County flights.
Search Deals
From Washington, D.C. Dulles Intl to Santa Rosa Sonoma County
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Santa Rosa Sonoma County
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 diciembre 12, 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

jue. 1/29

6:04 pm-11:59 pm

1 stop8h 55m

Santa Rosa Sonoma County

lun. 2/2

11:15 am-4:26 pm

1 stop26h 11m

$319

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

sáb. 1/31

6:04 pm-10:35 am

1 stop19h 31m

Santa Rosa Sonoma County

mar. 2/3

11:15 am-4:26 pm

1 stop26h 11m

$334

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

vie. 5/1

5:37 pm-10:58 pm

1 stop8h 21m

Santa Rosa Sonoma County

mié. 5/6

3:04 pm-5:49 am

2 stops11h 45m

$553

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

jue. 1/8

6:04 pm-11:59 pm

1 stop8h 55m

Santa Rosa Sonoma County

sáb. 1/10

11:15 am-4:26 pm

1 stop26h 11m

$577

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

sáb. 3/14

7:05 am-9:52 pm

1 stop17h 47m

Santa Rosa Sonoma County

sáb. 3/21

3:00 pm-5:49 am

1 stop11h 49m

$682

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

mié. 1/7

6:04 pm-10:35 am

1 stop19h 31m

Santa Rosa Sonoma County

sáb. 1/10

11:15 am-4:26 pm

1 stop26h 11m

$692

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

lun. 1/12

6:04 pm-12:22 pm

2 stops21h 18m

$183

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

vie. 1/23

6:04 pm-11:59 pm

1 stop8h 55m

$207

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

sáb. 4/11

5:50 am-10:20 am

1 stop7h 30m

$250

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

lun. 1/5

6:43 pm-9:24 am

2 stops17h 41m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 16 results
1
2
  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Santa Rosa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Santa Rosa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Santa Rosa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Santa Rosa flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Santa Rosa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Santa Rosa (average of $145). Flying from Washington, D.C. Dulles Intl Airport to Santa Rosa in September is currently the most expensive (average of $276). 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 diciembre 12, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Santa Rosa, such as Alaska Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,432 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

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
11,432 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

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 1 airline. 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 $319, Alaska Airlines can have you in Santa Rosa from Washington, D.C. Dulles Intl Airport in 8h 55m. The distance from Washington, D.C. Dulles Intl Airport to Santa Rosa is about 2418 mi.

  • What is the cheapest airline to fly 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 $440.

  • 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, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Santa Rosa (average of $145). Flying from Washington, D.C. Dulles Intl Airport to Santa Rosa in September is currently the most expensive (average of $276). 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

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Dulles Intl to Santa Rosa

Discover the top airline 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 diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$440Average$542FlexibilityNo cancel feeOn-time75%

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