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$212 Cheap Flights from Washington (DCA) to Santa Rosa (STS)

View $212 flight on Sat, Feb 20, 2027Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Santa Rosa, CA (STS-Sonoma County)

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Cheap Flights from Washington to Santa Rosa (DCA-STS)

Prices were available within the past 7 days and start at $212 for one-way flights and $423 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Sep 22 - Mon, Sep 28
DCA
Washington
STS
Santa Rosa
$423 Roundtrip, found 3 hours ago
$423
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Tue, Sep 22 from Washington to Santa Rosa, returning Mon, Sep 28, priced at $423 found 3 hours ago
Southwest Airlines
Sat, Sep 12 - Sat, Sep 19
DCA
Washington
STS
Santa Rosa
$428 Roundtrip, found 1 day ago
$428
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Sat, Sep 12 from Washington to Santa Rosa, returning Sat, Sep 19, priced at $428 found 1 day ago
Alaska Airlines
Tue, Nov 10 - Mon, Nov 16
DCA
Washington
STS
Santa Rosa
$432 Roundtrip, found 9 hours ago
$432
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Tue, Nov 10 from Washington to Santa Rosa, returning Mon, Nov 16, priced at $432 found 9 hours ago
Delta
Tue, Nov 10 - Mon, Nov 16
DCA
Washington
STS
Santa Rosa
$433 Roundtrip, found 9 hours ago
$433
Roundtrip
found 9 hours ago
Select Delta flight, departing Tue, Nov 10 from Washington to Santa Rosa, returning Mon, Nov 16, priced at $433 found 9 hours ago
Alaska Airlines
Sat, Oct 24 - Wed, Oct 28
DCA
Washington
STS
Santa Rosa
$434 Roundtrip, found 3 days ago
$434
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Oct 24 from Washington to Santa Rosa, returning Wed, Oct 28, priced at $434 found 3 days ago
Southwest Airlines
Wed, Sep 16 - Tue, Sep 22
DCA
Washington
STS
Santa Rosa
$439 Roundtrip, found 2 hours ago
$439
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Wed, Sep 16 from Washington to Santa Rosa, returning Tue, Sep 22, priced at $439 found 2 hours ago
Southwest Airlines
Tue, Nov 10 - Mon, Nov 16
DCA
Washington
STS
Santa Rosa
$439 Roundtrip, found 9 hours ago
$439
Roundtrip
found 9 hours ago
Select Southwest Airlines flight, departing Tue, Nov 10 from Washington to Santa Rosa, returning Mon, Nov 16, priced at $439 found 9 hours ago
Alaska Airlines
Sat, Feb 20 - Fri, Feb 26
DCA
Washington
STS
Santa Rosa
$441 Roundtrip, found 9 hours ago
$441
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Sat, Feb 20 from Washington to Santa Rosa, returning Fri, Feb 26, priced at $441 found 9 hours ago
Alaska Airlines
Wed, Nov 4 - Sat, Nov 7
DCA
Washington
STS
Santa Rosa
$443 Roundtrip, found 9 hours ago
$443
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Wed, Nov 4 from Washington to Santa Rosa, returning Sat, Nov 7, priced at $443 found 9 hours ago
American Airlines
Wed, Nov 4 - Sat, Nov 7
DCA
Washington
STS
Santa Rosa
$504 Roundtrip, found 9 hours ago
$504
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Wed, Nov 4 from Washington to Santa Rosa, returning Sat, Nov 7, priced at $504 found 9 hours ago

Alternative airports near Santa Rosa

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Sonoma County STS. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $423
STS
Sonoma County
CheapestClosest
Average driving time to city center10 min
Flights from $423

What you need to know for your flight from Ronald Reagan Washington National to Sonoma County

Washington (DCA) to Santa Rosa (STS) at a glance

Travel from Washington (DCA) to Santa Rosa (STS) with a selection of airlines on this domestic long-haul route. Explore various full-service carriers to discover the itinerary that aligns with your budget, schedule, and travel plans as you delve into the iconic sights and neighborhoods of Santa Rosa. Get all the essential information for flights departing from Ronald Reagan Washington National Airport (DCA) to Sonoma County Airport (STS).

  • Fastest flight duration: around 7h 45m in-flight, plus roughly 1 hour layover with one stop
  • Route distance: roughly 2,400 miles (3,860 km)
  • Flights per week: around 7 departures on average
  • Typical fares (one-way): economy tickets often range from $205–$685, depending on seasonality and how far ahead you book

Flights from Ronald Reagan Washington National Airport (DCA) to Sonoma County Airport (STS)

Based on the latest traveler bookings, here are the top airlines favored for trips from Washington to Santa Rosa, mainly selected for their one-stop services. Common layover points include Phoenix Sky Harbor International Airport (PHX) with a layover of about 55 minutes, Los Angeles International Airport (LAX) offering a 2-hour and 45-minute layover, and San Diego International Airport (SAN) with a 2-hour and 30-minute layover. These options allow you to balance price, total travel time, and cabin class to create the perfect itinerary.

  • American Airlines: As a full-service airline, American Airlines provides one-stop flights with one-way fares generally ranging from $205 to $920. This carrier operates about 81% of departures on this route, featuring an in-flight duration of 7 hours and 45 minutes, and a total travel time of approximately 8 hours and 30 minutes, including layover.
  • Alaska Airlines: Another full-service option, Alaska Airlines offers one-stop service with one-way tickets typically priced between $205 and $725. Representing around 19% of departures on this route, travelers can expect an in-flight time of 7 hours and 45 minutes, with the overall journey taking about 8 hours and 30 minutes, accounting for the layover.

Alternative routes from Washington (DCA) to Santa Rosa (STS)

  • Washington to Santa Rosa (IAD-STS): Located approximately 23 miles from Ronald Reagan Washington National Airport (DCA), Washington Dulles International Airport (IAD) serves as a major hub.
  • Washington to Novato (DCA-NOT): Gnoss Field Airport (NOT) is roughly 29 miles distant from Sonoma County Airport (STS), providing convenient access to the area.
  • Washington to Napa (DCA-APC): Napa Valley Airport (APC) lies about 35 miles from Sonoma County Airport (STS), making it an excellent choice for travelers heading to Napa.

How to find the best prices for flights from Washington (DCA) to Santa Rosa (STS)

Getting some of the best deals on flights from Washington to Santa Rosa is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually available when booking at least two months in advance, although most travelers tend to book 2 to 8 weeks ahead. Departures in the morning (5 a.m. to 12 p.m.) often offer lower prices and are also the most popular times to fly. Additionally, flying on Wednesday typically results in cheaper prices, while Sunday is the most popular travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Santa Rosa hotel and flight deals.
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Sonoma County Airport from Ronald Reagan Washington National Airport

Santa Rosa welcomes travelers from Washington with a range of transport options based on price, convenience, and proximity. For departures, Ronald Reagan Washington National Airport is roughly a 10-minute drive (covering about 5 miles) from central Washington. Santa Rosa city center is approximately a 10-minute drive (covering about 9 miles) from Sonoma County Airport, depending on traffic. Here's how to reach Santa Rosa efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Santa Rosa, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
  • Car rental: Renting a car from Sonoma County Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Sonoma County Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Sonoma County Airport, Santa Rosa Station, a train station, is located about 7.6 miles away by car, providing convenient access to rail services for travelers.

Frequently asked questions

How much does a flight from Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County) cost?
You can find cheap one-way flights from $212 and cheap return flights from $423 Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County) with Expedia. One-way flights typically cost between $480 and $1736, and return flights often range between $756 and $1521. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County)?
The cheapest month to fly from DCA to STS is September when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County)?
Enter DCA to STS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County)?
Alaska Airlines is one of the cheapest airlines offering connecting flights from Ronald Reagan Washington National (DCA) to Sonoma County (STS), with round-trip tickets starting from around $373 with a layover in an unspecified location. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County)?
To find a cheap flight from Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County)?
The earliest flight from Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County) typically departs at around 5:00 AM, operated by American Airlines. This seasonal service is available in August, so if you're planning to travel during that month, this early flight can help you maximize your time in Santa Rosa. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County)?
The most popular departure times for flights from Washington, DC (DCA) to Santa Rosa (STS) are in the early morning, from 6am to 9am. This accounts for around 64% of total traffic. Many major carriers, including United Airlines, American Airlines, and Delta Airlines, offer flights during this window. Many travelers prefer this time because it allows them to arrive in Santa Rosa with a full day ahead.
How long does it take to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County)?
Flying from DCA to STS with a connection usually takes about 8 hours 30 minutes, traveling roughly 2,442 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County)?
You can fly first class between DCA and STS. First class cabins are available on:

  • American Airlines
  • Delta Air Lines
  • United Airlines

How do I earn miles on a Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County) flight with Expedia?
It's easy to earn miles on a Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Santa Rosa from Ronald Reagan Washington National (DCA)?
If you're planning to travel to Santa Rosa from Ronald Reagan Washington National (DCA), you can fly into Sonoma County (STS) Some flights may connect through major hubs like O'Hare Intl. (ORD), George Bush Intercontinental (IAH), Liberty Intl. (EWR) before reaching Santa Rosa. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County) at the last minute?
Typically, booking a last minute flight from Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County) flight and hotel package?
Securing a Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County)?
If you booked your Washington, DC (DCA-Ronald Reagan Washington National) to Santa Rosa, CA (STS-Sonoma County) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Sonoma County
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines
Roundtrip price
$422
Distance
2441 mi

Book with confidence

Washington to Santa Rosa Flights

The cheapest times to fly from Washington to Santa Rosa

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Santa Rosa are during the month of September. You can find some of the cheapest flights from Washington to Santa Rosa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Santa Rosa

Sunday is one of the best days to book for cheap flights from Washington to Santa Rosa: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Santa Rosa

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Santa Rosa in 2026. You can also book with separate airlines for your outbound and return journeys, from $212 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Santa Rosa flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Santa Rosa airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Washington to Santa Rosa Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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