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 $495. Another option worth looking into is American Airlines, starting at $684 round trip. Alaska Airlines is currently priced 19% 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.

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 49% on this flight, we recommend booking at least 34 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 $459 1-2 weeks out and tickets from $624 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?

February is one of the best times of the year to fly to Washington, D.C. Reagan-National Airport from Santa Rosa. Prices for February average $443 per person but you can even find prices for as low as $157. The most expensive prices can be found in the month of December. Opting for a February flight can save you 15% on your journey compared to booking in December

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.

$172+ Flights from Santa Rosa to Washington, D.C. Reagan-National Airport - Compare & Save Big

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Cheap flight deals from Santa Rosa to Reagan-National

Most accurate provider	CheapOair 3 stars
Most trusted provider	CheapOair 3 stars
Round-trip from	$495 (Alaska Airlines)
One-way from	$172 (Alaska Airlines)
Popular in	January
Cheapest in	September
Average price	$832

Provider with most accurate pricing for San Francisco-Washington, D.C. (WAS) flight deals.

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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

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Highest demand for flights based on searches. 27% potential increase in price ($233 potential increase over avg. RT price).

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Cheapest flight prices on average. 9% potential price decrease ($53 potential savings vs. average RT price).

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Average for round-trip flights in May 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 May 1, 2025.

Mon 5/268:01 pmSTS - DCA

1 stop17h 43mAlaska Airlines

Fri 5/309:59 amDCA - STS

1 stop16h 54mAlaska Airlines

Deal found 4/30

$495

Fri 6/204:17 pmSTS - DCA

2 stops12h 23mAmerican Airlines

Sun 6/225:00 amDCA - STS

1 stop9h 45mAmerican Airlines

Deal found 4/30

$684

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 May 1, 2025.

Mon 5/268:01 pmSTS - DCA

1 stop17h 43mAlaska Airlines

Fri 5/309:59 amDCA - STS

1 stop16h 54mAlaska Airlines

Deal found 4/30

$495

Fri 6/204:17 pmSTS - DCA

2 stops12h 23mAmerican Airlines

Sun 6/225:00 amDCA - STS

1 stop9h 45mAmerican Airlines

Deal found 4/30

$684

Last-minute flights from Santa Rosa to Reagan-National
Discover last-minute flight deals from Santa Rosa to Reagan-National. Data last updated May 1, 2025 and is based on user searches.

Thu 5/87:28 pmSTS - DCA

1 stop22h 30mAlaska Airlines

Sun 5/118:59 amDCA - STS

1 stop15h 34mAlaska Airlines

Deal found 4/30

$754

Thu 5/812:24 pmSTS - DCA

1 stop7h 40mAmerican Airlines

Sun 5/115:00 amDCA - STS

2 stops10h 16mAmerican Airlines

Deal found 4/30

$944

Mon 5/268:01 pmSTS - DCA

1 stop17h 43mAlaska Airlines

Fri 5/309:59 amDCA - STS

1 stop16h 54mAlaska Airlines

Deal found 4/30

$495

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 May 1, 2025.

Tue 8/1210:00 amSTS - DCA

2 stops31h 59mAlaska Airlines

Deal found 4/30

$172

Sun 6/224:17 pmSTS - DCA

2 stops13h 49mAmerican Airlines

Deal found 4/30

$559

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

Mon 5/26

8:01 pm-4:44 pm

1 stop17h 43m

Washington, D.C. Reagan-National

Fri 5/30

9:59 am-11:53 pm

1 stop16h 54m

$495

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

Fri 6/20

4:17 pm-7:40 am

2 stops12h 23m

Washington, D.C. Reagan-National

Sun 6/22

5:00 am-11:45 am

1 stop9h 45m

$684

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

Tue 8/12

10:00 am-8:59 pm

2 stops31h 59m

$172

Santa RosaWashington, D.C.

STS - DCA

STSDCA

Santa Rosa Sonoma County

Sun 6/22

4:17 pm-9:06 am

2 stops13h 49m

$559

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

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 June is currently the most expensive (average of $344). 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.

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.

Rainfall in Reagan-National by month

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.

Temperature in Reagan-National by month

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).

Reviews of airlines servicing Reagan-National

To help decide which airline to fly from Santa Rosa to Washington, D.C., see what other customers have to say about Alaska Airlines and American Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,972 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

9,972 reviews

Alaska Airlines

8.0

Very good

9,972 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

9,972 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 $495. Another option worth looking into is American Airlines, starting at $684 round trip. Alaska Airlines is currently priced 19% 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 June is currently the most expensive (average of $344). 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

Alexandria

Arlington

Woodbridge

Tysons

Fairfax

Springfield

Rockville

Fredericksburg

Silver Spring

Gaithersburg

Linthicum Heights

Falls Church

Laurel

Easton

Towson

Herndon

Bowie

National Harbor

Oxon Hill

Reston

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Top 2 airlines flying from Santa Rosa to Reagan-National

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$290	Average$657	FlexibilityNo cancel fee	On-time71%
Alaska Airlines	Cheapest$320	Average$487	FlexibilityNo cancel fee	On-time75%

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$172+ 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 8/12. 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

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest 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 May 1, 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 May 1, 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?

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

Find hourly flight availability from Santa Rosa to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

Rainfall in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average rainfall totals by month.

Temperature in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average temperature totals by month.

Reviews of airlines servicing Reagan-National

To help decide which airline to fly from Santa Rosa to Washington, D.C., see what other customers have to say about Alaska Airlines and American Airlines. Users have also rated airlines in terms of 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 Santa Rosa?

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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 May 1, 2025.