What are the cheapest airlines flying from Santa Rosa to Washington, D.C. Reagan-National Airport round-trip?

Flying on Alaska Airlines is currently your cheapest option to Washington, D.C. Reagan-National Airport, with prices starting at $334. Another option worth looking into is American Airlines, starting at $525 round trip. Alaska Airlines is currently priced 43% below the average price you’ll pay for this route.

What is the cheapest day to fly from Santa Rosa to Washington, D.C. Reagan-National Airport?

Travelers seeking maximum savings on their Santa Rosa to Washington, D.C. Reagan-National Airport flight should consider departing on Monday mornings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Reagan-National Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What is the cheapest day to fly round-trip from Santa Rosa to Washington, D.C. Reagan-National Airport?

Monday flights are found to be more expensive to fly from Santa Rosa to Washington, D.C. Reagan-National Airport. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C. Reagan-National Airport.

How far in advance should I book a flight from Santa Rosa to Washington, D.C. Reagan-National Airport?

To save up to 92% on this flight, we recommend booking at least 29 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Santa Rosa to Washington, D.C. Reagan-National Airport from $494 1-2 weeks out and tickets from $633 for flights departing within the next 72 hours.

What is the cheapest month to fly from Santa Rosa to Washington, D.C. Reagan-National Airport?

September is one of the best times of the year to fly to Washington, D.C. Reagan-National Airport from Santa Rosa. Prices for September average $428 per person but you can even find prices for as low as $155. The most expensive prices can be found in the month of December. Opting for a September flight can save you 18% on your journey compared to booking in December

What is the cheapest time of day to fly from STS to DCA?

Unlike in the morning, when flights are generally more expensive, you can save up to 40% on flights from Santa Rosa to Washington, D.C. Reagan-National Airport by exploring options for tickets at noon.

What airport do you fly from for flights from Santa Rosa to Washington, D.C. Reagan-National?

If you book a flight to Washington, D.C. Reagan-National from Santa Rosa, you will be flying from Sonoma County, which is the city’s only airport. Santa Rosa Sonoma County (STS) is located 7.2 mi from the center of Santa Rosa. There are 0 flights from Sonoma County to Washington, D.C. Reagan-National per day from 2 different airlines.

Can I find deals for flights from Santa Rosa to Reagan-National that include hotel bookings?

Yes. In addition to deals on Santa Rosa to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Santa Rosa to Reagan-National?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Santa Rosa to Reagan-National.

Can I find deals for business class flights from Santa Rosa to Reagan-National?

Yes. Cheapflights offers flight deals from Santa Rosa to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$217+ Flights from Santa Rosa to Washington, D.C. Reagan-National Airport

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Santa Rosa to Reagan-National with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Santa Rosa to Reagan-National

Round-trip from	$334 (Alaska Airlines)
One-way from	$217 (Alaska Airlines)
Popular in	January
Cheapest in	October
Average price	$678

From Santa Rosa Sonoma County to Washington, D.C. Reagan-National

Search Deals

One-way flight from Santa Rosa Sonoma County to Washington, D.C. Reagan-National

Search Deals

Highest demand for flights based on searches. 30% potential increase in price ($262 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 11% potential price decrease ($61 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from Santa Rosa to Reagan-National

Cheapest flights from Santa Rosa to Reagan-National
Explore the most affordable flight options available from Santa Rosa to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Tue 10/287:45 amSTS - DCA

1 stop9h 15mAlaska Airlines

Sat 11/19:59 amDCA - STS

1 stop10h 55mAlaska Airlines

Deal found 7/28

$334

Sat 8/3012:17 pmSTS - DCA

1 stop7h 43mAmerican Airlines

Sat 9/66:45 amDCA - STS

1 stop8h 10mAmerican Airlines

Deal found 7/29

$525

Best flights from Santa Rosa to Reagan-National
Discover carefully curated flight deals from Santa Rosa to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Tue 10/287:45 amSTS - DCA

1 stop9h 15mAlaska Airlines

Sat 11/19:59 amDCA - STS

1 stop10h 55mAlaska Airlines

Deal found 7/28

$334

Sat 8/3012:17 pmSTS - DCA

1 stop7h 43mAmerican Airlines

Sat 9/66:45 amDCA - STS

1 stop8h 10mAmerican Airlines

Deal found 7/29

$525

Last-minute flights from Santa Rosa to Reagan-National
Discover last-minute flight deals from Santa Rosa to Reagan-National. Data last updated July 29, 2025 and is based on user searches.

Tue 8/57:00 amSTS - DCA

1 stop11h 42mAlaska Airlines

Wed 8/69:59 amDCA - STS

1 stop11h 08mAlaska Airlines

Deal found 7/29

$882

Wed 8/276:00 amSTS - DCA

1 stop12h 59mAlaska Airlines

Tue 9/28:00 amDCA - STS

1 stop15h 23mAlaska Airlines

Deal found 7/28

$382

Sat 8/3012:17 pmSTS - DCA

1 stop7h 43mAmerican Airlines

Sat 9/66:45 amDCA - STS

1 stop8h 10mAmerican Airlines

Deal found 7/29

$525

One-way flights from Santa Rosa to Reagan-National
Search for one-way flight options from Santa Rosa to Reagan-National. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Tue 9/307:03 amSTS - DCA

1 stop10h 56mAlaska Airlines

Deal found 7/27

$217

Sun 8/244:17 pmSTS - DCA

1 stop11h 43mAmerican Airlines

Deal found 7/29

$1,157

Cheapflights Fare Finder

Use the filters below to find and compare flights from Santa Rosa to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

Tue 10/28

7:45 am-8:00 pm

1 stop9h 15m

Washington, D.C. Reagan-National

Sat 11/1

9:59 am-5:54 pm

1 stop10h 55m

$334

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

Sat 8/30

12:17 pm-11:00 pm

1 stop7h 43m

Washington, D.C. Reagan-National

Sat 9/6

6:45 am-11:55 am

1 stop8h 10m

$525

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

Tue 9/30

7:03 am-8:59 pm

1 stop10h 56m

$217

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

Sun 8/24

4:17 pm-7:00 am

1 stop11h 43m

$1,157

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Santa Rosa to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Santa Rosa with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Santa Rosa to Washington, D.C. Reagan-National Airport

What is the cheapest month to book a flight from Santa Rosa to Washington, D.C. Reagan-National Airport?

Currently, February is the cheapest month in which you can book a flight from Santa Rosa to Washington, D.C. Reagan-National Airport (average of $278). Flying from Santa Rosa to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $335). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Reagan-National

Read through reviews of airlines operating flights from Santa Rosa to Washington, D.C. Reagan-National Airport, such as Alaska Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

What airport do you fly from for flights from Santa Rosa to Washington, D.C. Reagan-National?
If you book a flight to Washington, D.C. Reagan-National from Santa Rosa, you will be flying from Sonoma County, which is the city’s only airport. Santa Rosa Sonoma County (STS) is located 7.2 mi from the center of Santa Rosa. There are 0 flights from Sonoma County to Washington, D.C. Reagan-National per day from 2 different airlines.
What are the cheapest airlines flying from Santa Rosa to Washington, D.C. Reagan-National Airport round-trip?
Flying on Alaska Airlines is currently your cheapest option to Washington, D.C. Reagan-National Airport, with prices starting at $334. Another option worth looking into is American Airlines, starting at $525 round trip. Alaska Airlines is currently priced 43% below the average price you’ll pay for this route.
Can I find deals for flights from Santa Rosa to Reagan-National that include hotel bookings?
Yes. In addition to deals on Santa Rosa to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Santa Rosa to Reagan-National?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Santa Rosa to Reagan-National.
Can I find deals for business class flights from Santa Rosa to Reagan-National?
Yes. Cheapflights offers flight deals from Santa Rosa to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Santa Rosa to Washington, D.C. Reagan-National Airport?
Currently, February is the cheapest month in which you can book a flight from Santa Rosa to Washington, D.C. Reagan-National Airport (average of $278). Flying from Santa Rosa to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $335). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Woodbridge

Arlington

Alexandria

Tysons

Silver Spring

Fredericksburg

Gaithersburg

Easton

Towson

Linthicum Heights

Fairfax

Manassas

Falls Church

Waldorf

Laurel

Rockville

Oxon Hill

Springfield

National Harbor

Dundalk

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Santa Rosa to Reagan-National

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$290	Average$677	FlexibilityNo cancel fee	On-time71%
Alaska Airlines	Cheapest$320	Average$487	FlexibilityNo cancel fee	On-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$217+ Cheap flights from Santa Rosa (STS) to Reagan-National (DCA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Santa Rosa to Reagan-National with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Santa Rosa to Reagan-National

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Santa Rosa to Reagan-National

Cheapest flights from Santa Rosa to Reagan-NationalExplore the most affordable flight options available from Santa Rosa to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Santa Rosa to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Santa Rosa to Washington, D.C. Reagan-National Airport that are best for you.

Best time to book a flight from Santa Rosa to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Santa Rosa with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Santa Rosa to Washington, D.C. Reagan-National Airport

What is the cheapest month to book a flight from Santa Rosa to Washington, D.C. Reagan-National Airport?

Reviews of airlines servicing Reagan-National

Read through reviews of airlines operating flights from Santa Rosa to Washington, D.C. Reagan-National Airport, such as Alaska Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Santa Rosa to Reagan-National. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Santa Rosa to Washington, D.C. Reagan-National?

What are the cheapest airlines flying from Santa Rosa to Washington, D.C. Reagan-National Airport round-trip?

Can I find deals for flights from Santa Rosa to Reagan-National that include hotel bookings?

How can I find direct flights from Santa Rosa to Reagan-National?

Can I find deals for business class flights from Santa Rosa to Reagan-National?

What is the cheapest month to book a flight from Santa Rosa to Washington, D.C. Reagan-National Airport?

Traveling to a place near Washington, D.C. Reagan-National Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Santa Rosa to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Santa Rosa to Reagan-National

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Santa Rosa to Reagan-National
Explore the most affordable flight options available from Santa Rosa to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.