₹69,858 Cheap Flights from Washington (IAD) to Santa Rosa (STS)

View ₹69,858 flight on Mon, 21 Jul 2025Opens in a new window

Popular airlines from Washington Dulles International Airport (IAD) to Santa Rosa, CA (STS-Sonoma County)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 25% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at ₹69,858 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Washington (IAD) to Santa Rosa (STS)

November is typically the cheapest month to fly

From ₹26,105 - ₹103,941 per traveller.

Graph displaying average flight prices per month

Flight from Washington to Santa Rosa route information
Origin airport
Washington Dulles Intl.
Destination airport
Sonoma County
Distance
3870 km

Chantilly to Windsor Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Chantilly to Windsor will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Windsor.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with IAD to STS flights that won’t make your bank account wince. Ready to temporarily leave behind Chantilly for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to STS with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Frequently asked questions

How much is a flight from IAD to Sonoma County Airport (STS)?
If you're planning on travelling between Dulles Intl. Airport and STS, round-trip journeys start from . This figure is based on airfares advertised within the last 7 days on Expedia for flights departing within the next year, so don't delay. Book today and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from IAD to Sonoma County Airport (STS)?
We get that things crop up unexpectedly, so we've made it as easy as possible for you to cancel your trip online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from Dulles Intl. Airport to Sonoma County Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Dulles Intl. Airport to Sonoma County Airport (STS) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Washington Dulles Intl. Airport (IAD) to Sonoma County Airport (STS)?
The flight distance between Washington Dulles Intl. Airport (IAD) and Sonoma County Airport (STS) is 3,900 kilometres. Pack yourself a drink, some snacks and an interesting book to read. Keep yourself entertained and time will zip by.
Which airlines fly direct from Dulles Intl. Airport to Sonoma County Airport?
Flying nonstop between IAD and Sonoma County Airport (STS) isn't possible at present. However, you'll still be able to book a flight to Windsor with at least one stop.
Are Washington Dulles Intl. Airport (IAD) to STS flight tickets cheaper when they're purchased at the last minute?
Flight prices are always on the move, so not always. While last-minute deals between Dulles Intl. Airport and STS are of course possible, it's also a good idea to keep track of prices well before you fly. In fact, some carriers publish their prices up to a year ahead of the departure date. Expedia is constantly updating the biggest airfare bargains around, so keep checking back and be ready to secure your seat when the price is right.

Explore a world of travel with Expedia

*Available to Expedia members.