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

Flying on Alaska Airlines is currently your cheapest option to Santa Rosa, with prices starting at $318. Another option worth looking into is Hawaiian Airlines, starting at $492 round trip. These flights start at 47% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Santa Rosa one-way?

The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Santa Rosa are Hawaiian Airlines ($159), Alaska Airlines ($179), and American Airlines ($405).

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

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

In terms of precipitation, rainfall in Santa Rosa ranges from 0.0 - 7.1 inches per month. January is typically the wettest month, when rainfall can reach 7.1 in. July is typically the driest time to visit Santa Rosa when rainfall is around 0.0 in.

If weather is an important factor for your trip to Santa Rosa, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 42 days in advance, which can save you up to 61% on flights from Washington, D.C. Dulles Intl Airport to Santa Rosa compared to booking the week you need them. Waiting 42 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $548. For sooner than that we have options available in the next 3 days from $628.

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

Our data shows that February tends to be the cheapest month to fly to Santa Rosa from Washington, D.C. Dulles Intl Airport. Users have commonly found prices around $424 for the month, but tickets can be as low as $170. Due to multiple factors, prepare for potentially higher prices in December.

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

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Santa Rosa at noon. If you’re flexible enough to do this you can expect to save up to 33% on your trip compared to booking a flight in the morning.

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

Most people fly into Santa Rosa Sonoma County (STS) if they book a flight to Santa Rosa from Washington, D.C. Dulles Intl. On average, Sonoma County has 0 inbound flights from Washington, D.C. Dulles Intl per day from 2 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 Dulles Intl to Santa Rosa that include hotel bookings?

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

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

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

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

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

$159+ Flights from Washington, D.C. Dulles Intl Airport to Santa Rosa

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Cheap flight deals from Dulles Intl to Santa Rosa

Round-trip from	$318 (Alaska Airlines)
One-way from	$159 (Hawaiian Airlines)
Popular in	July
Cheapest in	November
Average price	$968

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

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

Search Deals

Highest demand for flights based on searches. 23% potential increase in price ($192 potential increase over avg. RT price).

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Cheapest flight prices on average. 6% potential price decrease ($36 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Dulles Intl to Santa Rosa

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

Tue 9/165:52 pmIAD - STS

1 stop18h 51mAlaska Airlines

Sat 9/206:00 amSTS - IAD

1 stop7h 52mAlaska Airlines

Deal found 7/28

$318

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

Tue 9/165:52 pmIAD - STS

1 stop18h 51mAlaska Airlines

Sat 9/206:00 amSTS - IAD

1 stop7h 52mAlaska Airlines

Deal found 7/28

$318

Fri 1/26:21 pmIAD - STS

1 stop8h 38mHawaiian Airlines

Wed 1/76:58 amSTS - IAD

1 stop7h 27mHawaiian Airlines

Deal found 7/29

$492

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

Mon 8/48:19 pmIAD - STS

1 stop24h 48mAlaska Airlines

Wed 8/136:00 amSTS - IAD

1 stop9h 59mAlaska Airlines

Deal found 7/28

$752

Tue 8/195:25 pmIAD - STS

1 stop9h 25mAlaska Airlines

Wed 8/276:00 amSTS - IAD

1 stop7h 47mAlaska Airlines

Deal found 7/28

$318

Sun 8/246:27 amIAD - STS

2 stops12h 20mAmerican Airlines

Sun 8/314:17 pmSTS - IAD

2 stops13h 22mAmerican Airlines

Deal found 7/26

$709

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

Wed 9/175:52 pmIAD - STS

1 stop8h 58mHawaiian Airlines

Deal found 7/29

$159

Sat 9/137:00 amIAD - STS

1 stop9h 36mAlaska Airlines

Deal found 7/28

$179

Wed 11/266:04 amIAD - STS

1 stop9h 02mAmerican Airlines

Deal found 7/29

$405

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

Tue 9/16

5:52 pm-9:43 am

1 stop18h 51m

Santa Rosa Sonoma County

Sat 9/20

6:00 am-4:52 pm

1 stop7h 52m

$318

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

Fri 1/2

6:21 pm-11:59 pm

1 stop8h 38m

Santa Rosa Sonoma County

Wed 1/7

6:58 am-5:25 pm

1 stop7h 27m

$492

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

Wed 9/17

5:52 pm-11:50 pm

1 stop8h 58m

$159

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

Sat 9/13

7:00 am-1:36 pm

1 stop9h 36m

$179

Washington, D.C.Santa Rosa

IAD - STS

IADSTS

Washington, D.C. Dulles Intl

Wed 11/26

6:04 am-12:06 pm

1 stop9h 02m

$405

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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

Have a flexible travel schedule? Discover the best time to fly to Santa Rosa from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Santa Rosa

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Santa Rosa (average of $202). Flying from Washington, D.C. Dulles Intl Airport to Santa Rosa in June is currently the most expensive (average of $395). 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 Santa Rosa

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Santa Rosa, such as Alaska Airlines, Hawaiian 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.

Hawaiian Airlines

7.8

Good

2,605 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 into for flights to Santa Rosa from Washington, D.C. Dulles Intl?
Most people fly into Santa Rosa Sonoma County (STS) if they book a flight to Santa Rosa from Washington, D.C. Dulles Intl. On average, Sonoma County has 0 inbound flights from Washington, D.C. Dulles Intl per day from 2 airlines. Santa Rosa Sonoma County is conveniently located just 7.2 mi from Santa Rosa’s city center.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Santa Rosa round-trip?
Flying on Alaska Airlines is currently your cheapest option to Santa Rosa, with prices starting at $318. Another option worth looking into is Hawaiian Airlines, starting at $492 round trip. These flights start at 47% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Santa Rosa one-way?
The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Santa Rosa are Hawaiian Airlines ($159), Alaska Airlines ($179), and American Airlines ($405).
Can I find deals for flights from Dulles Intl to Santa Rosa that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Santa Rosa flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Santa Rosa?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Santa Rosa.
Can I find deals for business class flights from Dulles Intl to Santa Rosa?
Yes. Cheapflights offers flight deals from Dulles Intl to Santa Rosa 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 Washington, D.C. Dulles Intl Airport to Santa Rosa?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Santa Rosa (average of $202). Flying from Washington, D.C. Dulles Intl Airport to Santa Rosa in June is currently the most expensive (average of $395). 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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Other flights to Santa Rosa

Top 2 airlines flying from Dulles Intl to Santa Rosa

Airline	Cheapest	Average	Flexibility	On-time
Alaska Airlines	Cheapest$431	Average$562	FlexibilityNo cancel fee	On-time75%
American Airlines	Cheapest$693	Average$838	FlexibilityNo cancel fee	On-time71%

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$159+ Cheap flights from Dulles Intl (IAD) to Santa Rosa (STS)

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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Santa Rosa with Cheapflights

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Cheap flight deals from Dulles Intl to Santa Rosa

Round-trip from

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Popular in

Cheapest in

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Find flight deals from Dulles Intl to Santa Rosa

Cheapest flights from Dulles Intl to Santa RosaExplore the most affordable flight options available from Dulles Intl to Santa Rosa. 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 Dulles Intl to Santa Rosa. 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 Washington, D.C. Dulles Intl Airport to Santa Rosa that are best for you.

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

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

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Santa Rosa

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

Reviews of airlines servicing Santa Rosa

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Santa Rosa, such as Alaska Airlines, Hawaiian 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 Dulles Intl to Santa Rosa. 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 into for flights to Santa Rosa from Washington, D.C. Dulles Intl?

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

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Santa Rosa one-way?

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

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

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

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

Traveling to a place near Santa Rosa?

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Alternative routes for Dulles Intl to Santa Rosa

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Top 2 airlines flying from Dulles Intl to Santa Rosa

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