How long is the flight from Santa Rosa to Washington, D.C. Dulles Intl Airport?

A quick flight from Santa Rosa to Washington, D.C. Dulles Intl Airport can take about 7h 27m. Hawaiian Airlines provides one of the quickest options available for as low as $368. Santa Rosa and Washington, D.C. Dulles Intl Airport are separated by a distance of 2418 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What is the cheapest day to fly from Santa Rosa to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Santa Rosa to Washington, D.C. Dulles Intl Airport flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday 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. Dulles Intl 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. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl 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. Dulles Intl Airport?

Travelers have found that booking a Monday departure is the best way to save up to 29% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

To save on the cost of your flight from Santa Rosa to Washington, D.C. Dulles Intl Airport, book at least 29 days before your planned departure. Booking around this time can save you about 86% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $499 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $629.

What is the cheapest month to fly from Santa Rosa to Washington, D.C. Dulles Intl Airport?

September can be a great time to fly to Washington, D.C. Dulles Intl Airport from Santa Rosa with a flight ticket averaging about $427. Cheapflights users have found deals in the month of September for as cheap as $165. The most expensive prices can be found in the month of December.

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

When flying from Santa Rosa to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from Santa Rosa to Washington, D.C. Dulles Intl?

Most people fly from Santa Rosa Sonoma County (STS) if they book a flight from Santa Rosa to Washington, D.C. Dulles Intl. On average, Sonoma County has 0 outbound flights to Washington, D.C. Dulles Intl per day from 0 airlines. Santa Rosa Sonoma County is conveniently located just 7.2 mi from Santa Rosa’s city center.

Can I find deals for flights from Santa Rosa to Dulles Intl that include hotel bookings?

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

How can I find direct flights from Santa Rosa to Dulles Intl?

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

Can I find deals for business class flights from Santa Rosa to Dulles Intl?

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

$277+ Flights from Santa Rosa to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Santa Rosa to Dulles Intl

Round-trip from	$368 (Hawaiian Airlines)
One-way from	$277 (Alaska Airlines)
Popular in	December
Cheapest in	September
Average price	$389

From Santa Rosa Sonoma County to Washington, D.C. Dulles Intl

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One-way flight from Santa Rosa Sonoma County to Washington, D.C. Dulles Intl

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Highest demand for flights based on searches. 8% potential increase in price ($38 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($7 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 Dulles Intl

Cheapest flights from Santa Rosa to Dulles Intl
Explore the most affordable flight options available from Santa Rosa to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Thu 11/66:49 amSTS - IAD

1 stop7h 24mHawaiian Airlines

Sun 11/95:40 pmIAD - STS

1 stop9h 17mHawaiian Airlines

Deal found 9/11

$433

Tue 9/3011:54 amSTS - IAD

2 stops33h 29mAlaska Airlines

Tue 10/75:42 pmIAD - STS

1 stop8h 34mAlaska Airlines

Deal found 9/11

$475

Thu 9/256:00 amSTS - IAD

1 stop7h 52mAlaska Airlines

Wed 10/15:52 pmIAD - STS

1 stop8h 58mAlaska Airlines

Deal found 9/10

$509

Thu 11/66:49 amSTS - IAD

1 stop7h 24mAlaska Airlines

Sun 11/97:43 amIAD - STS

2 stops13h 11mAlaska Airlines

Deal found 9/11

$611

Thu 9/257:52 pmSTS - IAD

1 stop18h 00mAlaska Airlines

Mon 9/295:52 pmIAD - STS

1 stop8h 58mAlaska Airlines

Deal found 9/10

$664

Sun 9/216:00 amSTS - IAD

1 stop7h 52mAlaska Airlines

Sat 9/277:00 amIAD - STS

2 stops15h 12mAlaska Airlines

Deal found 9/10

$767

Best flights from Santa Rosa to Dulles Intl
Discover carefully curated flight deals from Santa Rosa to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Fri 2/276:58 amSTS - IAD

1 stop7h 27mHawaiian Airlines

Tue 3/35:51 pmIAD - STS

1 stop7h 55mHawaiian Airlines

Deal found 9/9

$368

Fri 2/278:00 amSTS - IAD

2 stops18h 55mAlaska Airlines

Tue 3/35:51 pmIAD - STS

1 stop7h 55mAlaska Airlines

Deal found 9/10

$394

Thu 11/66:49 amSTS - IAD

1 stop7h 24mHawaiian Airlines

Sun 11/95:40 pmIAD - STS

1 stop9h 17mHawaiian Airlines

Deal found 9/11

$433

Tue 9/3011:54 amSTS - IAD

2 stops33h 29mAlaska Airlines

Tue 10/75:42 pmIAD - STS

1 stop8h 34mAlaska Airlines

Deal found 9/11

$475

Thu 9/256:00 amSTS - IAD

1 stop7h 52mAlaska Airlines

Wed 10/15:52 pmIAD - STS

1 stop8h 58mAlaska Airlines

Deal found 9/10

$509

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

Fri 9/196:00 amSTS - IAD

1 stop7h 52mAlaska Airlines

Wed 9/245:52 pmIAD - STS

1 stop8h 58mAlaska Airlines

Deal found 9/11

$787

Sun 9/216:00 amSTS - IAD

1 stop7h 52mAlaska Airlines

Sat 9/277:00 amIAD - STS

2 stops15h 12mAlaska Airlines

Deal found 9/10

$767

Thu 9/256:00 amSTS - IAD

1 stop7h 52mAlaska Airlines

Wed 10/15:52 pmIAD - STS

1 stop8h 58mAlaska Airlines

Deal found 9/10

$509

Thu 9/257:52 pmSTS - IAD

1 stop18h 00mAlaska Airlines

Mon 9/295:52 pmIAD - STS

1 stop8h 58mAlaska Airlines

Deal found 9/10

$664

Tue 9/3011:54 amSTS - IAD

2 stops33h 29mAlaska Airlines

Tue 10/75:42 pmIAD - STS

1 stop8h 34mAlaska Airlines

Deal found 9/11

$475

One-way flights from Santa Rosa to Dulles Intl
Search for one-way flight options from Santa Rosa to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Tue 12/232:24 pmSTS - IAD

1 stop12h 49mAlaska Airlines

Deal found 9/9

$277

Fri 10/102:30 pmSTS - IAD

1 stop30h 53mAlaska Airlines

Deal found 9/10

$297

Wed 9/247:03 amSTS - IAD

2 stops14h 20mAlaska Airlines

Deal found 9/9

$312

Mon 12/17:43 pmSTS - IAD

1 stop18h 47mAlaska Airlines

Deal found 9/11

$342

Mon 12/222:24 pmSTS - IAD

1 stop12h 49mAlaska Airlines

Deal found 9/9

$347

Fri 9/267:52 pmSTS - IAD

1 stop18h 00mAlaska Airlines

Deal found 9/9

$422

Fri 10/107:00 amSTS - IAD

3 stops34h 53mMultiple Airlines

Deal found 9/10

$441

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Fri 2/27

6:58 am-5:25 pm

1 stop7h 27m

Washington, D.C. Dulles Intl

Tue 3/3

5:51 pm-10:46 pm

1 stop7h 55m

$368

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Fri 2/27

8:00 am-5:55 am

2 stops18h 55m

Washington, D.C. Dulles Intl

Tue 3/3

5:51 pm-10:46 pm

1 stop7h 55m

$394

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Thu 11/6

6:49 am-5:13 pm

1 stop7h 24m

Washington, D.C. Dulles Intl

Sun 11/9

5:40 pm-11:57 pm

1 stop9h 17m

$433

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Tue 9/30

11:54 am-12:23 am

2 stops33h 29m

Washington, D.C. Dulles Intl

Tue 10/7

5:42 pm-11:16 pm

1 stop8h 34m

$475

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Thu 9/25

6:00 am-4:52 pm

1 stop7h 52m

Washington, D.C. Dulles Intl

Wed 10/1

5:52 pm-11:50 pm

1 stop8h 58m

$509

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Tue 12/23

2:24 pm-6:13 am

1 stop12h 49m

$277

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Fri 10/10

2:30 pm-12:23 am

1 stop30h 53m

$297

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Wed 9/24

7:03 am-12:23 am

2 stops14h 20m

$312

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Mon 12/1

7:43 pm-5:30 pm

1 stop18h 47m

$342

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Mon 12/22

2:24 pm-6:13 am

1 stop12h 49m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 12 results

Best time to book a flight from Santa Rosa to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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. Dulles Intl Airport

What is the cheapest month to book a flight from Santa Rosa to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Santa Rosa to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Santa Rosa to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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.

Related info for your journey

What airport do you fly from for flights from Santa Rosa to Washington, D.C. Dulles Intl?
Most people fly from Santa Rosa Sonoma County (STS) if they book a flight from Santa Rosa to Washington, D.C. Dulles Intl. On average, Sonoma County has 0 outbound flights to Washington, D.C. Dulles Intl per day from 0 airlines. Santa Rosa Sonoma County is conveniently located just 7.2 mi from Santa Rosa’s city center.
How long is the flight from Santa Rosa to Washington, D.C. Dulles Intl Airport?
A quick flight from Santa Rosa to Washington, D.C. Dulles Intl Airport can take about 7h 27m. Hawaiian Airlines provides one of the quickest options available for as low as $368. Santa Rosa and Washington, D.C. Dulles Intl Airport are separated by a distance of 2418 mi. Both multi-stop and nonstop flights can be found to your destination and back.
Can I find deals for flights from Santa Rosa to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Santa Rosa to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Santa Rosa to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Santa Rosa to Dulles Intl.
Can I find deals for business class flights from Santa Rosa to Dulles Intl?
Yes. Cheapflights offers flight deals from Santa Rosa to Dulles Intl 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. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Santa Rosa to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Santa Rosa to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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.

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$277+ Cheap flights from Santa Rosa (STS) to Dulles Intl (IAD)

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 12/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Santa Rosa to Dulles Intl with Cheapflights

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Find flight deals from Santa Rosa to Dulles Intl

Cheapest flights from Santa Rosa to Dulles IntlExplore the most affordable flight options available from Santa Rosa to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Explore the most affordable flight options available from Santa Rosa to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Santa Rosa to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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. Dulles Intl Airport

What is the cheapest month to book a flight from Santa Rosa to Washington, D.C. Dulles Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from Santa Rosa to Dulles Intl. 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. Dulles Intl?

How long is the flight from Santa Rosa to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from Santa Rosa to Dulles Intl that include hotel bookings?

How can I find direct flights from Santa Rosa to Dulles Intl?

Can I find deals for business class flights from Santa Rosa to Dulles Intl?

What is the cheapest month to book a flight from Santa Rosa to Washington, D.C. Dulles Intl Airport?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Cheapest flights from Santa Rosa to Dulles Intl
Explore the most affordable flight options available from Santa Rosa to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.