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Cheap Flights from Washington Dulles (IAD) to Santa Rosa (STS)

Compare Washington Dulles to Santa Rosa flight deals

Find the cheapest month or even day of the year to fly to Santa Rosa

Book the best Santa Rosa fare with no extra fees

Flight deals from Washington Dulles Airport to Santa Rosa Airport

Looking for a cheap last-minute deal or the best return flight from Washington Dulles to Santa Rosa? Find the lowest prices on one-way and return tickets right here.
Santa Rosa.£380 per passenger.Departing Thu, 1 Oct, returning Mon, 5 Oct.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Washington Dulles on Thu, 1 Oct, arriving in Santa Rosa.Inbound indirect flight with Alaska Airlines, departs from Santa Rosa on Mon, 5 Oct, arriving in Washington Dulles.Price includes taxes and charges.From £380, select.
Santa Rosa.£467 per passenger.Departing Thu, 17 Sep, returning Thu, 24 Sep.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Washington Dulles on Thu, 17 Sep, arriving in Santa Rosa.Inbound indirect flight with Southwest Airlines, departs from Santa Rosa on Thu, 24 Sep, arriving in Washington Dulles.Price includes taxes and charges.From £467, select.
Santa Rosa.£898 per passenger.Departing Wed, 25 Mar, returning Sun, 29 Mar.Return flight with Porter Airlines and Alaska Airlines.Outbound indirect flight with Porter Airlines, departs from Washington Dulles on Wed, 25 Mar, arriving in Santa Rosa.Inbound indirect flight with Alaska Airlines, departs from Santa Rosa on Sun, 29 Mar, arriving in Washington Dulles.Price includes taxes and charges.From £898, select.
Santa Rosa.£1,096 per passenger.Departing Thu, 28 May, returning Mon, 1 Jun.Return flight with Frontier Airlines and Alaska Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Thu, 28 May, arriving in Santa Rosa.Inbound indirect flight with Alaska Airlines, departs from Santa Rosa on Mon, 1 Jun, arriving in Washington Dulles.Price includes taxes and charges.From £1,096, select.

Find the cheapest month to fly from Washington Dulles to Santa Rosa

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Santa Rosa flights are currently cheapest in October.
Mar
from £898
Apr
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May
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Jun
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Jul
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Aug
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Sep
from £467
Oct
from £380
Nov
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Dec
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Jan
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Feb
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Washington Dulles to Santa Rosa: Alternative routes

Compare routes from Washington Dulles to Santa Rosa below. You may find an airport to fly into that's cheaper, faster, or easier than Santa Rosa.

Santa Rosa

7 miles from central Santa Rosa
ClosestCheapest
from £380
Search flights

Concord

47 miles from central Santa Rosa
Search flights

Washington D.C. to Santa Rosa: Flight information

The things to know before you go.
Cheapest flight found£380
Cheapest month to flyOctober

Check out these Santa Rosa hotels

Ready to plan your stay? Other travellers rate these Santa Rosa hotels for cleanliness, service and location.
My Big Art Project
0.57 miles from city centre
£343
Per night
The Gables Wine Country Inn
3.44 miles from city centre
£228
Per night
Vinarosa Resort & Spa
4.48 miles from city centre
£320
Per night
My Big Art Project
0.57 miles from city centre
£343
Per night
The Gables Wine Country Inn
3.44 miles from city centre
£228
Per night
Vinarosa Resort & Spa
4.48 miles from city centre
£320
Per night
Explore top-rated hotels

Finding cheap flights from Washington Dulles to Santa Rosa: Frequently asked questions

The best price we found for a return flight from Washington Dulles to Santa Rosa is £380. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Washington Dulles to Santa Rosa. But we found flights with one or more stops from £380.
As of March 2026, there are no flights flying from Washington Dulles to Santa Rosa.
The cheapest month to fly from Washington Dulles to Santa Rosa is usually October.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Santa Rosa Airport on Thursday, 1 October 2026.
No airlines currently offer direct flights between Washington Dulles Airport and Santa Rosa Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Santa Rosa but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Santa Rosa is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Alaska Airlines offers the cheapest flight tickets to Santa Rosa.

How to find cheap flights to Santa Rosa (STS) from Washington D.C. (IAD) in 2026

Looking for cheap tickets from Washington Dulles to Santa Rosa? Return tickets start from £380 and one-way flights to Santa Rosa from Washington Dulles start from £180


Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Washington Dulles to Santa Rosa. And with us there are no hidden fees - what you see is what you pay.
  • Compare flight deals to Santa Rosa from Washington D.C. from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to Santa Rosa start from £180 one-way.
  • Flex your dates to find the best IAD-STS ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Santa Rosa from Washington Dulles.
  • Set up a Price Alert. You can easily track the fare of your cheap Washington Dulles-Santa Rosa flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Flexible on when you travel? The cheapest month to fly from Washington Dulles to Santa Rosa is October.
  • Fly without stops. Only interested in direct flights between Washington Dulles and Santa Rosa? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results.
  • Find the cheapest Business class flights from Washington Dulles and Santa Rosa. We scour the internet for the best Business, Premium Economy and First Class flight fares to Santa Rosa, too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for Washington Dulles to Santa Rosa flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.
  • Search for cheap flights regardless of where you are. To get the best flight booking experience when out and about, download the app and search for plane tickets between Washington Dulles and Santa Rosa whenever you want.

Combine your flight to Santa Rosa from Washington Dulles with hotels and car hire

Once you've secured your cheap flight ticket from Washington Dulles to Santa Rosa, discover the best prices and exclusive rates for hotels in Santa Rosa or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.


Plan the rest of your trip from Washington D.C. to Santa Rosa

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.