฿4,340 Cheap Flights from San Francisco (SFO) to Washington (IAD)

View ฿4,340 flight on Tue, 19 May 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 ฿4,340 for one-way flights and ฿11,180 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, 18 Apr - Sat, 25 Apr
SFO
San Francisco
IAD
Washington
฿11,180 Return, found 5 days ago
฿11,180
Return
found 5 days ago
Select United flight, departing Sat, 18 Apr from San Francisco to Washington, returning Sat, 25 Apr, priced at ฿11,180 found 5 days ago
American Airlines
Sat, 18 Apr - Sat, 25 Apr
SFO
San Francisco
IAD
Washington
฿11,495 Return, found 5 days ago
฿11,495
Return
found 5 days ago
Select American Airlines flight, departing Sat, 18 Apr from San Francisco to Washington, returning Sat, 25 Apr, priced at ฿11,495 found 5 days ago
American Airlines
Sat, 18 Apr - Sat, 25 Apr
SFO
San Francisco
IAD
Washington
฿12,120 Return, found 5 days ago
฿12,120
Return
found 5 days ago
Select American Airlines flight, departing Sat, 18 Apr from San Francisco to Washington, returning Sat, 25 Apr, priced at ฿12,120 found 5 days ago
United
Sat, 18 Apr - Sat, 25 Apr
SFO
San Francisco
IAD
Washington
฿12,420 Return, found 5 days ago
฿12,420
Return
found 5 days ago
Select United flight, departing Sat, 18 Apr from San Francisco to Washington, returning Sat, 25 Apr, priced at ฿12,420 found 5 days ago
Delta
Sat, 18 Apr - Sat, 25 Apr
SFO
San Francisco
IAD
Washington
฿12,460 Return, found 5 days ago
฿12,460
Return
found 5 days ago
Select Delta flight, departing Sat, 18 Apr from San Francisco to Washington, returning Sat, 25 Apr, priced at ฿12,460 found 5 days ago
United
Sat, 18 Apr - Sat, 25 Apr
SFO
San Francisco
IAD
Washington
฿12,740 Return, found 5 days ago
฿12,740
Return
found 5 days ago
Select United flight, departing Sat, 18 Apr from San Francisco to Washington, returning Sat, 25 Apr, priced at ฿12,740 found 5 days ago
United
Sat, 18 Apr - Sat, 25 Apr
SFO
San Francisco
IAD
Washington
฿12,745 Return, found 5 days ago
฿12,745
Return
found 5 days ago
Select United flight, departing Sat, 18 Apr from San Francisco to Washington, returning Sat, 25 Apr, priced at ฿12,745 found 5 days ago
United
Sat, 18 Apr - Sat, 25 Apr
SFO
San Francisco
IAD
Washington
฿13,045 Return, found 5 days ago
฿13,045
Return
found 5 days ago
Select United flight, departing Sat, 18 Apr from San Francisco to Washington, returning Sat, 25 Apr, priced at ฿13,045 found 5 days ago
American Airlines
Sat, 18 Apr - Sat, 25 Apr
SFO
San Francisco
IAD
Washington
฿13,060 Return, found 5 days ago
฿13,060
Return
found 5 days ago
Select American Airlines flight, departing Sat, 18 Apr from San Francisco to Washington, returning Sat, 25 Apr, priced at ฿13,060 found 5 days ago
United
Sat, 18 Apr - Sat, 25 Apr
SFO
San Francisco
IAD
Washington
฿13,085 Return, found 5 days ago
฿13,085
Return
found 5 days ago
Select United flight, departing Sat, 18 Apr from San Francisco to Washington, returning Sat, 25 Apr, priced at ฿13,085 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 ฿4,454 - ฿12,121 per traveller.

Frequently asked questions

How much is a flight from SFO to IAD?
Round-trip flights between SFO and Dulles Intl. Airport start from ฿11,180. 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.

Travel information

Origin airport
San Francisco Intl.
Destination airport
Washington Dulles Intl.
Return price
฿11,180
Distance
3862 km
Average flight time
9 hours 33 mins

Book with confidence

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 ฿4,340 and roundtrip prices from ฿11,180. 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.
Perfect flights from San Francisco to Washington
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