฿4,345 Cheap Flights from San Francisco (SFO) to Washington (IAD)

View ฿4,345 flight on Sat, 14 Feb 2026Opens in a new window

Popular airlines from San Francisco International Airport (SFO) to Washington Dulles International Airport (IAD)

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Cheap Flights from San Francisco (SFO) to Washington (IAD)

Prices were available within the past 7 days and start at ฿4,345 for one-way flights and ฿9,555 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 20 Feb - Mon, 23 Feb
SFO
San Francisco
IAD
Washington
฿9,555 Return, found 5 days ago
฿9,555
Return
found 5 days ago
Select Delta flight, departing Fri, 20 Feb from San Francisco to Washington, returning Mon, 23 Feb, priced at ฿9,555 found 5 days ago
Delta
Fri, 20 Feb - Mon, 23 Feb
SFO
San Francisco
IAD
Washington
฿10,370 Return, found 5 days ago
฿10,370
Return
found 5 days ago
Select Delta flight, departing Fri, 20 Feb from San Francisco to Washington, returning Mon, 23 Feb, priced at ฿10,370 found 5 days ago
Delta
Fri, 20 Feb - Mon, 23 Feb
SFO
San Francisco
IAD
Washington
฿11,175 Return, found 5 days ago
฿11,175
Return
found 5 days ago
Select Delta flight, departing Fri, 20 Feb from San Francisco to Washington, returning Mon, 23 Feb, priced at ฿11,175 found 5 days ago
United
Fri, 20 Feb - Mon, 23 Feb
SFO
San Francisco
IAD
Washington
฿13,050 Return, found 5 days ago
฿13,050
Return
found 5 days ago
Select United flight, departing Fri, 20 Feb from San Francisco to Washington, returning Mon, 23 Feb, priced at ฿13,050 found 5 days ago
Delta
Fri, 20 Feb - Mon, 23 Feb
SFO
San Francisco
IAD
Washington
฿13,055 Return, found 5 days ago
฿13,055
Return
found 5 days ago
Select Delta flight, departing Fri, 20 Feb from San Francisco to Washington, returning Mon, 23 Feb, priced at ฿13,055 found 5 days ago
American Airlines
Fri, 20 Feb - Mon, 23 Feb
SFO
San Francisco
IAD
Washington
฿13,360 Return, found 5 days ago
฿13,360
Return
found 5 days ago
Select American Airlines flight, departing Fri, 20 Feb from San Francisco to Washington, returning Mon, 23 Feb, priced at ฿13,360 found 5 days ago
American Airlines
Fri, 20 Feb - Mon, 23 Feb
SFO
San Francisco
IAD
Washington
฿13,365 Return, found 5 days ago
฿13,365
Return
found 5 days ago
Select American Airlines flight, departing Fri, 20 Feb from San Francisco to Washington, returning Mon, 23 Feb, priced at ฿13,365 found 5 days ago
Delta
Sat, 18 Apr - Sun, 3 May
SFO
San Francisco
IAD
Washington
฿13,370 Return, found 5 days ago
฿13,370
Return
found 5 days ago
Select Delta flight, departing Sat, 18 Apr from San Francisco to Washington, returning Sun, 3 May, priced at ฿13,370 found 5 days ago
United
Fri, 20 Feb - Mon, 23 Feb
SFO
San Francisco
IAD
Washington
฿13,665 Return, found 5 days ago
฿13,665
Return
found 5 days ago
Select United flight, departing Fri, 20 Feb from San Francisco to Washington, returning Mon, 23 Feb, priced at ฿13,665 found 5 days ago
United
Fri, 20 Feb - Mon, 23 Feb
SFO
San Francisco
IAD
Washington
฿13,710 Return, found 5 days ago
฿13,710
Return
found 5 days ago
Select United flight, departing Fri, 20 Feb from San Francisco to Washington, returning Mon, 23 Feb, priced at ฿13,710 found 5 days ago

Find the cheapest month to fly from San Francisco (SFO) to Washington (IAD)

January is typically the cheapest month to fly

From ฿4,418 - ฿12,071 per traveller.
Flight from San Francisco to Washington route information
Origin airport
San Francisco Intl.
Destination airport
Washington Dulles Intl.
Return price
฿9,555
Distance
3862 km
Average flight time
8 hours 43 mins

Perfect flights from San Francisco to Washington

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from San Francisco to Washington. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible San Francisco Intl. to Washington Dulles Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿4,345 and roundtrip prices from ฿9,555. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Washington Dulles Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Washington.

Frequently asked questions

How much is a flight from SFO to IAD?
Round-trip flights between SFO and Dulles Intl. Airport start from ฿9,555. This is based on fares quoted within the last 7 days on Expedia for flights departing within the next year — book ASAP so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from San Francisco Airport to Dulles Intl. Airport?
Each air carrier has its own set of terms and conditions. If you decide to cancel your getaway, head to our Customer Service Portal.
How do I find cheap flights from SFO to IAD that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for San Francisco Airport to IAD flights, you'll see a "no change fees" filter for you to select.
How far is the flight from San Francisco Intl. Airport (SFO) to Dulles Intl. Airport?
The flight distance between San Francisco Airport and IAD is 3,900 kilometres. Bring along a drink, some snacks and a good book to read. Keep yourself occupied and the time will fly by.
Which airlines fly direct from San Francisco Airport to Washington Dulles Intl. Airport (IAD)?
With 152 monthly flights from San Francisco Airport to Washington Dulles Intl. Airport (IAD), United Airlines (UA) is a top choice. Another carrier operating on this route is Alaska Airlines (AS). You'll have 30 flights each month to take your pick of.
Are SFO to Dulles Intl. Airport flight tickets cheaper when they're purchased at the last minute?
Airline tickets from SFO to Washington Dulles Intl. Airport (IAD) are available up to a year before departure on Expedia. And although you may occasionally nab great last-minute deal, it's never a sure thing. Also, booking your flights in advance means you'll have more choices — and you can avoid ending up with the dreaded middle seat! We regularly update our fares to bring you the biggest bargains, so check back often for all the latest specials.
*Available to Expedia members.