IAD - STS

$159 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 11/5. 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

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
$366
Alaska Airlines
Thu 10/30Tue 11/11
IAD - STS • 1 stop
Cheapest one-way
$159
Alaska Airlines
Wed 11/5
IAD - STS • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $366 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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

Thu, Oct 30 - Tue, Nov 11
Alaska Airlines Logo
5:40 pm - 11:57 pmIAD-STS
9h 17m1 stop
Alaska Airlines Logo
7:46 pm - 5:13 pmSTS-IAD
18h 27m1 stop
$366Alaska Airlines
Find Deal
Tue, Mar 3 - Thu, Mar 5
Alaska Airlines Logo
5:51 pm - 10:46 pmIAD-STS
7h 55m1 stop
Alaska Airlines Logo
6:58 am - 5:25 pmSTS-IAD
7h 27m1 stop
$403Alaska Airlines
Find Deal
Tue, Mar 3 - Thu, Mar 5
Alaska Airlines Logo
5:51 pm - 10:46 pmIAD-STS
7h 55m1 stop
Alaska Airlines Logo
8:00 am - 5:55 amSTS-IAD
18h 55m2 stops
$406Alaska Airlines
Find Deal
Wed, Dec 24 - Thu, Jan 1
Alaska Airlines Logo
6:29 pm - 2:44 pmIAD-STS
23h 15m1 stop
Alaska Airlines Logo
6:00 am - 6:13 amSTS-IAD
21h 13m1 stop
$407Alaska Airlines
Find Deal
Wed, Dec 3 - Sun, Dec 7
Alaska Airlines Logo
5:37 pm - 10:54 pmIAD-STS
8h 17m1 stop
Alaska Airlines Logo
2:21 pm - 6:06 amSTS-IAD
12h 45m1 stop
$408Alaska Airlines
Find Deal
Wed, Dec 24 - Wed, Dec 31
Alaska Airlines Logo
6:29 pm - 11:23 amIAD-STS
19h 54m1 stop
Alaska Airlines Logo
6:45 am - 5:21 pmSTS-IAD
7h 36m1 stop
$412Alaska Airlines
Find Deal
Thu, Dec 4 - Sun, Dec 7
Alaska Airlines Logo
5:37 pm - 10:54 pmIAD-STS
8h 17m1 stop
Alaska Airlines Logo
8:00 am - 5:30 pmSTS-IAD
30h 30m1 stop
$413Alaska Airlines
Find Deal
Thu, Nov 6 - Sun, Nov 9
Alaska Airlines Logo
5:40 pm - 11:57 pmIAD-STS
9h 17m1 stop
Alaska Airlines Logo
6:49 am - 5:13 pmSTS-IAD
7h 24m1 stop
$414Alaska Airlines
Find Deal
Thu, Nov 13 - Sun, Nov 16
American Airlines Logo
6:24 am - 3:53 pmIAD-STS
12h 29m2 stops
American Airlines Logo
4:23 pm - 10:19 amSTS-IAD
14h 56m2 stops
$753American Airlines
Find Deal
Tue, Mar 3 - Thu, Mar 5
American Airlines Logo
6:32 am - 3:50 pmIAD-STS
12h 18m2 stops
American Airlines Logo
4:18 pm - 4:05 pmSTS-IAD
20h 47m2 stops
$949American Airlines
Find Deal
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 provide the cheapest flights from Washington Dulles Airport to Santa Rosa?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington Dulles Airport to Santa Rosa were found on Alaska Airlines ($366) and American Airlines ($753).

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 are 2 airlines that fly nonstop from Washington, D.C. Dulles Intl Airport to Santa Rosa. They are Alaska Airlines and American Airlines. The cheapest airline for this route is Alaska Airlines, with the best round-trip deal found costing $440. On average, the best prices for this route can be found at Alaska Airlines.

Good to know

Low seasonNovember
Cheapest flight$159
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly with an average 37% increase in price.
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 $159 for a one-way ticket and $366 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.

  • Which is the best airline for flights from Washington, D.C. to Santa Rosa, Alaska Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Santa Rosa are Alaska Airlines and American Airlines. With an average price for the route of $542 and an overall rating of 8.0, Alaska Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $838 and an overall rating of 7.2.

  • 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 airlines 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 10994 reviews
7.8Comfort
7.0Entertainment
8.5Crew
8.1Boarding
7.1Food
Airline reviews

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.

4.0 OkaySteve, Sep 2025DCA - SFO
Read more Alaska Airlines reviews

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.

My husband unfortunately had a very large lady next to him who did not fit in the seat and had to have the armrest up so she was partially in his seat and she also had horrible BO

The Boeing 737 plane is old with narrow seats and tiny lavatories. The flight was delayed for over 2 hours. The flight attendants were discourteous.

Only offered water, no snacks provided, and it was cold on the plane, everyone was wearing sweatshirt or jacket in June. I asked for blanket, but crew said they didnt have anything and would turn the heat up, that didn't happen, so for 6 hours I remained cold.

One of the stewardess, Tre, went above and beyond to ensure my comfort!

It was too cold for the first quarter of the flight.

I loved that we boarded orderly and quickly, that I had an opportunity to check my bag free at the gate, that there was plenty of seat/leg room, there was smooth takeoff and landing, the attendants were pleasant and helpful, and that we arrived on time!!

The flight crew was rude. We were in first class and no one even offered water until an hour after we were in the air. Horrible experience

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

Did not get the seat I selected and paid for.

My flight was delayed for several hours. Sitting at gate 16 for several hours, I got a text from Kayak the gate changed to 9 before it was announced. Very bad communication at each gate from American Airlines employees. I received 10 notifications of delay from Kayak. My vacation started off horrible! I will write to American Airlines corporate office also.

The AA staff person who checked our bags was curt and almost rude. The FA also seemed unhappy doing her job. Overall it was like riding the school bus back in grade school.

Delayed flight that lead to a missed connection and a 5-hour trip became a 12-hour flight 🙄

There is no room, no gluten free options, or any free internet/entertainment. You have to bring your own tablet or smartphone because there are no screens.

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

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