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Cheap flights from Santa Rosa to Washington, D.C. from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Santa Rosa to Washington, D.C. departing on 9/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Alaska Airlines Logo
6:00 am - 4:52 pmSTS-IAD
7h 52m1 stop
Alaska Airlines Logo
5:52 pm - 11:50 pmIAD-STS
8h 58m1 stop
$317Alaska Airlines
Find Deal
Tue, Sep 30 - Wed, Oct 1
Alaska Airlines Logo
6:00 am - 4:52 pmSTS-IAD
7h 52m1 stop
Alaska Airlines Logo
7:00 am - 1:36 pmIAD-STS
9h 36m1 stop
$319Alaska Airlines
Find Deal
Sat, Sep 27 - Tue, Sep 30
Alaska Airlines Logo
6:00 am - 4:52 pmSTS-IAD
7h 52m1 stop
Alaska Airlines Logo
5:52 pm - 11:50 pmIAD-STS
8h 58m1 stop
$336Alaska Airlines
Find Deal
Sat, Sep 27 - Mon, Sep 29
Alaska Airlines Logo
6:00 am - 4:52 pmSTS-IAD
7h 52m1 stop
Alaska Airlines Logo
7:00 am - 7:12 pmIAD-STS
15h 12m2 stops
$376Alaska Airlines
Find Deal
Sat, Sep 27 - Tue, Sep 30
Alaska Airlines Logo
6:00 am - 4:52 pmSTS-IAD
7h 52m1 stop
Alaska Airlines Logo
7:48 pm - 1:36 pmIAD-STS
20h 48m1 stop
$390Alaska Airlines
Find Deal
Wed, Oct 1 - Fri, Oct 17
Alaska Airlines Logo
10:50 am - 5:13 pmSTS-IAD
27h 23m2 stops
Alaska Airlines Logo
5:40 pm - 11:57 pmIAD-STS
9h 17m1 stop
$399Alaska Airlines
Find Deal
Mon, Oct 27 - Thu, Oct 30
Hawaiian Airlines Logo
6:00 am - 4:52 pmSTS-IAD
7h 52m1 stop
Hawaiian Airlines Logo
7:00 am - 1:36 pmIAD-STS
9h 36m1 stop
$503Hawaiian Airlines
Find Deal
Sun, Sep 21 - Sat, Sep 27
Hawaiian Airlines Logo
6:00 am - 4:52 pmSTS-IAD
7h 52m1 stop
Hawaiian Airlines Logo
7:00 am - 1:36 pmIAD-STS
9h 36m1 stop
$567Hawaiian Airlines
Find Deal
Fri, Sep 19 - Sun, Sep 21
American Airlines Logo
12:25 pm - 10:45 pmSTS-IAD
7h 20m1 stop
American Airlines Logo
6:25 am - 3:48 pmIAD-STS
12h 23m2 stops
$684American Airlines
Find Deal
Fri, Sep 19 - Sun, Sep 21
Hawaiian Airlines Logo
6:00 am - 4:52 pmSTS-IAD
7h 52m1 stop
Hawaiian Airlines Logo
7:00 am - 1:36 pmIAD-STS
9h 36m1 stop
$754Hawaiian Airlines
Find Deal
Tue, Sep 2 - Sat, Sep 6

Hawaiian Airlines flights from Santa Rosa to Washington, D.C. Dulles Intl Airport

Our best Hawaiian Airlines deals on Santa Rosa to Washington, D.C. Dulles Intl Airport flight tickets
Hawaiian Airlines
Sep 21
STS6:00 amSanta Rosa Sonoma County
7h 52m
1 stop
IAD4:52 pmWashington, D.C. Dulles Intl
Sep 27
IAD7:00 amWashington, D.C. Dulles Intl
9h 36m
1 stop
STS1:36 pmSanta Rosa Sonoma County
$503
Find similar
Hawaiian Airlines
Sep 19
STS6:00 amSanta Rosa Sonoma County
7h 52m
1 stop
IAD4:52 pmWashington, D.C. Dulles Intl
Sep 21
IAD7:00 amWashington, D.C. Dulles Intl
9h 36m
1 stop
STS1:36 pmSanta Rosa Sonoma County
$567
Find similar
Hawaiian Airlines
Sep 2
STS6:00 amSanta Rosa Sonoma County
7h 52m
1 stop
IAD4:52 pmWashington, D.C. Dulles Intl
Sep 6
IAD7:00 amWashington, D.C. Dulles Intl
9h 36m
1 stop
STS1:36 pmSanta Rosa Sonoma County
$754
Find similar

Alaska Airlines flights from Santa Rosa to Washington, D.C. Dulles Intl Airport

Our best Alaska Airlines deals on Santa Rosa to Washington, D.C. Dulles Intl Airport flight tickets
Alaska Airlines
Sep 30
STS6:00 amSanta Rosa Sonoma County
7h 52m
1 stop
IAD4:52 pmWashington, D.C. Dulles Intl
Oct 1
IAD5:52 pmWashington, D.C. Dulles Intl
8h 58m
1 stop
STS11:50 pmSanta Rosa Sonoma County
$317
Find similar
Alaska Airlines
Sep 27
STS6:00 amSanta Rosa Sonoma County
7h 52m
1 stop
IAD4:52 pmWashington, D.C. Dulles Intl
Sep 30
IAD7:00 amWashington, D.C. Dulles Intl
9h 36m
1 stop
STS1:36 pmSanta Rosa Sonoma County
$319
Find similar
Alaska Airlines
Sep 27
STS6:00 amSanta Rosa Sonoma County
7h 52m
1 stop
IAD4:52 pmWashington, D.C. Dulles Intl
Sep 29
IAD5:52 pmWashington, D.C. Dulles Intl
8h 58m
1 stop
STS11:50 pmSanta Rosa Sonoma County
$336
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Santa Rosa to Washington, D.C. Dulles Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 20, 2025.
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

Tue 9/30

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

$317

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Sat 9/27

6:00 am-4:52 pm

1 stop7h 52m

Washington, D.C. Dulles Intl

Tue 9/30

7:00 am-1:36 pm

1 stop9h 36m

$319

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Sat 9/27

6:00 am-4:52 pm

1 stop7h 52m

Washington, D.C. Dulles Intl

Mon 9/29

5:52 pm-11:50 pm

1 stop8h 58m

$336

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Sat 9/27

6:00 am-4:52 pm

1 stop7h 52m

Washington, D.C. Dulles Intl

Tue 9/30

7:00 am-7:12 pm

2 stops15h 12m

$376

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Wed 10/1

6:00 am-4:52 pm

1 stop7h 52m

Washington, D.C. Dulles Intl

Fri 10/17

7:48 pm-1:36 pm

1 stop20h 48m

$390

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Mon 10/27

10:50 am-5:13 pm

2 stops27h 23m

Washington, D.C. Dulles Intl

Thu 10/30

5:40 pm-11:57 pm

1 stop9h 17m

$399

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Sun 9/21

6:00 am-4:52 pm

1 stop7h 52m

Washington, D.C. Dulles Intl

Sat 9/27

7:00 am-1:36 pm

1 stop9h 36m

$503

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Fri 9/19

6:00 am-4:52 pm

1 stop7h 52m

Washington, D.C. Dulles Intl

Sun 9/21

7:00 am-1:36 pm

1 stop9h 36m

$567

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Fri 9/19

12:25 pm-10:45 pm

1 stop7h 20m

Washington, D.C. Dulles Intl

Sun 9/21

6:25 am-3:48 pm

2 stops12h 23m

$684

Santa RosaWashington, D.C.

STS - IAD

STSIAD

Santa Rosa Sonoma County

Tue 9/2

6:00 am-4:52 pm

1 stop7h 52m

Washington, D.C. Dulles Intl

Sat 9/6

7:00 am-1:36 pm

1 stop9h 36m

$754

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Santa Rosa to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Thursday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $512. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Santa Rosa to Washington, D.C. Dulles Intl Airport for around $656.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Santa Rosa in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $486 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $582 on average. Flights to Washington, D.C. Dulles Intl Airport from Santa Rosa at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Santa Rosa to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 60% on your flight if you consider stops on a Santa Rosa to Washington, D.C. Dulles Intl Airport flight.

When to book flights from Santa Rosa to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Santa Rosa to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Santa Rosa to Washington, D.C. Dulles Intl Airport (STS to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Santa Rosa to Washington, D.C. Dulles Intl Airport

Direct flights

None
There are no direct flights from Santa Rosa to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Santa Rosa to Washington, D.C. Dulles Intl Airport.
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  • How far is Santa Rosa Sonoma County to Washington, D.C. Dulles Intl by plane?

    The straight-line distance from Santa Rosa Sonoma County to Washington, D.C. Dulles Intl is 2413.9 mi. Typically, this will take 7h 20m by plane in normal conditions.

  • When did momondo last update prices for flights from Santa Rosa Sonoma County Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Santa Rosa Sonoma County Airport to Washington, D.C. Dulles Intl Airport are updated daily.

  • How old do you have to be to fly from Santa Rosa Sonoma County Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Santa Rosa Sonoma County Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
Arlington
National Harbor
Winchester
Woodbridge
Waldorf
Tysons
Silver Spring
Laurel
Colonial Beach
Fredericksburg
Harpers Ferry
Manassas
Towson
Rockville
Gaithersburg
Reston
Fairfax
Glen Burnie

Why use momondo?

Why should I use momondo to find a flight deal from Santa Rosa to Washington, D.C.?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Santa Rosa.

Can I find flights from Santa Rosa to Washington, D.C. with flexible booking policies on momondo?

Flights from Santa Rosa to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Santa Rosa to Washington, D.C.?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Santa Rosa.

I’m not ready to book a flight from Santa Rosa to Washington, D.C. right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Santa Rosa to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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