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

Flying on American Airlines is currently your cheapest option to Washington, D.C. Reagan-National Airport, with prices starting at $310. Another option worth looking into is Alaska Airlines, starting at $320 round trip. American Airlines is currently priced 47% 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 86% 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 $499 1-2 weeks out and tickets from $629 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 $427 per person but you can even find prices for as low as $165. 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.

$312+ Flights from Santa Rosa to Washington, D.C. Reagan-National Airport

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Cheap flight deals from Santa Rosa to Reagan-National

Round-trip from	$326 (Alaska Airlines)
One-way from	$312 (Alaska Airlines)
Popular in	January
Cheapest in	October
Average price	$386

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

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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 ($258 potential increase over avg. RT price).

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

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Average for round-trip flights in September 2025

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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 septiembre 11, 2025.

mar. 10/286:34 pmSTS - DCA

1 stop22h 26mAlaska Airlines

sáb. 11/18:59 amDCA - STS

1 stop17h 58mAlaska Airlines

Deal found 9/10

$326

jue. 11/66:49 amSTS - DCA

1 stop11h 16mAlaska Airlines

dom. 11/98:59 amDCA - STS

1 stop17h 58mAlaska Airlines

Deal found 9/11

$467

jue. 9/256:56 pmSTS - DCA

1 stop23h 03mAlaska Airlines

lun. 9/298:59 amDCA - STS

1 stop29h 15mAlaska Airlines

Deal found 9/10

$592

vie. 9/197:03 amSTS - DCA

1 stop10h 56mAlaska Airlines

dom. 9/218:59 amDCA - STS

1 stop29h 15mAlaska Airlines

Deal found 9/11

$862

jue. 11/61:18 pmSTS - DCA

1 stop17h 01mAmerican Airlines

dom. 11/96:59 amDCA - STS

2 stops11h 54mAmerican Airlines

Deal found 9/10

$874

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 septiembre 11, 2025.

mar. 10/286:34 pmSTS - DCA

1 stop22h 26mAlaska Airlines

sáb. 11/18:59 amDCA - STS

1 stop17h 58mAlaska Airlines

Deal found 9/9

$326

jue. 11/61:18 pmSTS - DCA

1 stop17h 01mAmerican Airlines

dom. 11/96:59 amDCA - STS

2 stops11h 54mAmerican Airlines

Deal found 9/10

$874

jue. 11/68:07 pmSTS - DCA

1 stop20h 53mAlaska Airlines

dom. 11/95:53 pmDCA - STS

2 stops22h 33mAlaska Airlines

Deal found 9/10

$544

jue. 9/256:56 pmSTS - DCA

1 stop23h 03mAlaska Airlines

lun. 9/298:59 amDCA - STS

1 stop29h 15mAlaska Airlines

Deal found 9/10

$592

Last-minute flights from Santa Rosa to Reagan-National
Discover last-minute flight deals from Santa Rosa to Reagan-National. Data last updated septiembre 11, 2025 and is based on user searches.

vie. 9/197:03 amSTS - DCA

1 stop10h 56mAlaska Airlines

dom. 9/218:59 amDCA - STS

1 stop29h 15mAlaska Airlines

Deal found 9/11

$862

jue. 9/256:56 pmSTS - DCA

1 stop23h 03mAlaska Airlines

lun. 9/298:59 amDCA - STS

1 stop29h 15mAlaska Airlines

Deal found 9/10

$592

jue. 9/257:03 amSTS - DCA

2 stops10h 57mAmerican Airlines

lun. 9/296:45 amDCA - STS

2 stops12h 03mAmerican Airlines

Deal found 9/10

$1,517

mar. 10/286:34 pmSTS - DCA

1 stop22h 26mAlaska Airlines

sáb. 11/18:59 amDCA - STS

1 stop17h 58mAlaska Airlines

Deal found 9/10

$326

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 septiembre 11, 2025.

mié. 9/247:03 amSTS - DCA

2 stops11h 41mAlaska Airlines

Deal found 9/9

$312

vie. 9/266:56 pmSTS - DCA

1 stop23h 03mAlaska Airlines

Deal found 9/9

$362

vie. 10/102:30 pmSTS - DCA

1 stop23h 18mAlaska Airlines

Deal found 9/10

$372

lun. 12/11:18 pmSTS - DCA

1 stop27h 42mAlaska Airlines

Deal found 9/11

$392

jue. 9/257:00 amSTS - DCA

2 stops12h 00mAlaska Airlines

Deal found 9/9

$530

mar. 9/167:00 amSTS - DCA

1 stop11h 44mAlaska Airlines

Deal found 9/11

$535

dom. 11/307:43 pmSTS - DCA

1 stop22h 37mAlaska Airlines

Deal found 9/11

$733

lun. 12/11:18 pmSTS - DCA

2 stops21h 15mAmerican Airlines

Deal found 9/11

$744

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

mar. 10/28

6:34 pm-8:00 pm

1 stop22h 26m

Washington, D.C. Reagan-National

sáb. 11/1

8:59 am-11:57 pm

1 stop17h 58m

$326

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

jue. 11/6

8:07 pm-8:00 pm

1 stop20h 53m

Washington, D.C. Reagan-National

dom. 11/9

5:53 pm-1:26 pm

2 stops22h 33m

$544

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

jue. 9/25

6:56 pm-8:59 pm

1 stop23h 03m

Washington, D.C. Reagan-National

lun. 9/29

8:59 am-11:14 am

1 stop29h 15m

$592

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

jue. 11/6

1:18 pm-9:19 am

1 stop17h 01m

Washington, D.C. Reagan-National

dom. 11/9

6:59 am-3:53 pm

2 stops11h 54m

$874

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

mié. 9/24

7:03 am-9:44 pm

2 stops11h 41m

$312

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

jue. 9/25

7:03 am-8:59 pm

1 stop10h 56m

$332

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

vie. 9/26

6:56 pm-8:59 pm

1 stop23h 03m

$362

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

lun. 12/1

1:18 pm-8:00 pm

1 stop27h 42m

$392

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

vie. 10/10

6:51 pm-11:00 am

2 stops13h 09m

$435

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

mar. 9/16

3:07 pm-8:59 pm

1 stop26h 52m

$535

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 11 results

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

6.0

Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

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.
How long is the flight from Santa Rosa to Washington, D.C. Reagan-National Airport?
A quick flight from Santa Rosa to Washington, D.C. Reagan-National Airport can take about 22h 26m. Alaska Airlines provides one of the quickest options available for as low as $326. Airlines will cover a distance of 2441 mi.
What are the cheapest airlines flying from Santa Rosa to Washington, D.C. Reagan-National Airport round-trip?
Flying on American Airlines is currently your cheapest option to Washington, D.C. Reagan-National Airport, with prices starting at $310. Another option worth looking into is Alaska Airlines, starting at $320 round trip. American Airlines is currently priced 47% 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

Alexandria

Arlington

Tysons

Silver Spring

Springfield

Gaithersburg

Fredericksburg

Linthicum Heights

Fairfax

Falls Church

Owings Mills

Manassas

Rockville

Hanover

Oxon Hill

Laurel

Towson

Dundalk

National Harbor

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$310	Average$678	FlexibilityNo cancel fee	On-time71%
Alaska Airlines	Cheapest$320	Average$487	FlexibilityNo cancel fee	On-time75%

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$312+ 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 9/24. 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

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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

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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 septiembre 11, 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 septiembre 11, 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?

How long is the flight from Santa Rosa to Washington, D.C. Reagan-National Airport?

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

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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

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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 septiembre 11, 2025.