IAD - STS

$192 Find Cheap Flights from Washington Dulles Airport to Santa Rosa

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Santa Rosa departing on 1/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Santa Rosa

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Santa Rosa, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Santa Rosa, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$325
Alaska Airlines
Sat 2/14Wed 2/18
IAD - STS • 1 stop
Cheapest one-way
$192
Alaska Airlines
Sun 1/25
IAD - STS • 1 stop
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We hope you love your trip to Santa Rosa!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Santa Rosa (IAD-STS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Santa Rosa that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Santa Rosa

Sat, Feb 14 - Wed, Feb 18
Alaska Airlines Logo
7:05 am - 9:52 pm
IAD
-
STS
17h 47m1 stop
Alaska Airlines Logo
7:57 pm - 5:20 pm
STS
-
IAD
18h 23m1 stop
$325Alaska Airlines
Sat, Feb 28 - Wed, Mar 4
Alaska Airlines Logo
7:05 am - 9:52 pm
IAD
-
STS
17h 47m1 stop
Alaska Airlines Logo
11:15 am - 5:20 pm
STS
-
IAD
27h 05m1 stop
$343Alaska Airlines
Sat, Feb 14 - Tue, Feb 17
Alaska Airlines Logo
7:05 am - 9:52 pm
IAD
-
STS
17h 47m1 stop
Alaska Airlines Logo
7:57 pm - 5:20 pm
STS
-
IAD
18h 23m1 stop
$354Alaska Airlines
Tue, Jan 27 - Mon, Feb 2
Alaska Airlines Logo
6:04 pm - 8:58 am
IAD
-
STS
41h 54m2 stops
Alaska Airlines Logo
9:33 pm - 4:26 pm
STS
-
IAD
15h 53m1 stop
$359Alaska Airlines
Sat, Mar 7 - Wed, Mar 11
Alaska Airlines Logo
7:05 am - 9:32 am
IAD
-
STS
29h 27m1 stop
Alaska Airlines Logo
7:57 pm - 5:20 pm
STS
-
IAD
18h 23m1 stop
$377Alaska Airlines
Sat, Feb 28 - Wed, Mar 4
Alaska Airlines Logo
7:05 am - 9:52 pm
IAD
-
STS
17h 47m1 stop
Alaska Airlines Logo
8:00 am - 5:20 pm
STS
-
IAD
30h 20m2 stops
$378Alaska Airlines
Sat, Feb 14 - Wed, Feb 18
Alaska Airlines Logo
7:05 am - 9:52 pm
IAD
-
STS
17h 47m1 stop
Alaska Airlines Logo
8:00 am - 5:20 pm
STS
-
IAD
54h 20m2 stops
$379Alaska Airlines
Mon, Jan 26 - Thu, Jan 29
Alaska Airlines Logo
6:04 pm - 11:59 pm
IAD
-
STS
8h 55m1 stop
Alaska Airlines Logo
9:33 pm - 4:26 pm
STS
-
IAD
15h 53m1 stop
$384Alaska Airlines
Wed, Jan 28 - Wed, Feb 4
Alaska Airlines Logo
6:04 pm - 10:35 am
IAD
-
STS
19h 31m1 stop
Alaska Airlines Logo
11:15 am - 4:26 pm
STS
-
IAD
26h 11m1 stop
$388Alaska Airlines
Wed, Jan 28 - Wed, Feb 4
Alaska Airlines Logo
6:04 pm - 8:41 pm
IAD
-
STS
29h 37m2 stops
Alaska Airlines Logo
11:15 am - 4:26 pm
STS
-
IAD
26h 11m1 stop
$389Alaska Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to Santa Rosa flights

Get data-powered insights and trends into flights from Dulles Intl to Santa Rosa to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between Washington, D.C. Dulles Intl Airport and Santa Rosa?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Washington, D.C. Dulles Intl Airport to Santa Rosa.

There is just one airline that flies from Washington, D.C. Dulles Intl Airport to Santa Rosa direct and that is Alaska Airlines. The best round-trip deal found from Alaska Airlines for the route is $440.

Good to know

Cheapest flight$192
Flight from Washington Dulles Airport to Santa Rosa

When to book flights from Dulles Intl to Santa Rosa

Are your dates flexible? Find out the best times to travel from Dulles Intl to Santa Rosa based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Santa Rosa flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Santa Rosa was $192 for a one-way ticket and $325 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Santa Rosa?

    No, a passport isn't needed to fly from Washington Dulles Airport to Santa Rosa. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Washington Dulles Airport to Santa Rosa?

    When flying out of Washington Dulles Airport you will be using Washington, D.C. Dulles Intl. You will be landing at Santa Rosa, also known as Santa Rosa Sonoma County.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Santa Rosa?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Santa Rosa?

    oneworld is the only airline alliance operating flights between Washington Dulles Airport and Santa Rosa.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Santa Rosa?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Santa Rosa.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Santa Rosa?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Santa Rosa from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Santa Rosa?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Santa Rosa with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and STS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Santa Rosa?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Santa Rosa from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Dulles Intl to Santa Rosa

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Santa Rosa. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Santa Rosa? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11597 reviews
8.5Crew
7.1Food
7.8Comfort
8.1Boarding
7.0Entertainment
Airline reviews

The seats are very small. I’m 5’ 3”, so don’t think I should notice. The food selection was non existent and very disappointing. 5 hour flight plus TSA, etc. I would have appreciated a small salad, crudités. Something fresher not just chips.

8.0 ExcellentAnonymous, Dec 2025
DCA - SFO
Read more Alaska Airlines reviews

The seats are very small. I’m 5’ 3”, so don’t think I should notice. The food selection was non existent and very disappointing. 5 hour flight plus TSA, etc. I would have appreciated a small salad, crudités. Something fresher not just chips.

We appreciated that the flight attendant came through 3 times with drinks or water on the long flight..I was also glad that they were separating out recycling! I would have liked a 12oz sofa can instead of 7oz, but that's a minor quibble. The knee space in economy was also better than most of Alaska's competitors.

Flight from LAX to STS das excellent. Flight from DCA to LAX was troubled by the previous flight returning to the one DCA gate putting our flight in jeopardy. However another gate was arranged and that flight was a bit late, but was handled exceptionally.

You need a n/a category. Too short a flight for food. I love flying on Alaska from Santa Rosa Airport!

Almost 3 hr delay in Settle with very little information available to passengers. They boarded the plane and we waited for a long time inside the plane as well.

Online check in didn't work. Somehow ended up with 2 Alaska rewards numbers and 1 for Hawaiian. No one at check in could figure out what to do. No one at check in could help me confirm an upcoming flight on Hawaiian Airlines.

Boarding process was poorly handled by the gate crew and the onboard crew. No effort was made to provide equal treatment to passengers with overhead bin space. Crew seemed disengaged and unfriendly.

Awesome. Great flight. Super nice people and I like the extra space

On time, WiFi worked, reasonable legroom, helpful staff. Unfortunately there was no water for handwashing in the rear lavatory.

My 1.5 hr flight was 5.5 hrs delayed. We switched gates twice. We planed and deplaned once. Three total planes, two had “mechanical issues.” None of this even makes sense as the original plane was sitting at the gate since yesterday evening. Then when the second plane was finally brought to the gate from the hangar, it too needed repair. Don’t worry. They gave us a $12 foot voucher. All other flights in the same area of the terminal were hours delayed. It was an actual nightmare. This was after a few hours delay on my first flight a few days ago. And I thought that was bad.

Everything you need to know for your flight from Dulles Intl to Santa Rosa

Information on your arrival and departure airports