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Cheap flights from Washington, D.C. Dulles Intl Airport to San Francisco from £102

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SFO
5 Mar — 12 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to San Francisco are usually found in February or May, booked 72 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from Dulles Intl to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Dulles Intl to San Francisco
Explore the most affordable flight options available from Dulles Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 February 2026.

Wed 4/322:10
IAD
-
SFO
Nonstop6h 18m
United Airlines
Wed 18/316:55
SFO
-
IAD
Nonstop5h 08m
United Airlines
Deal found 2/2£188
Sat 28/207:00
IAD
-
SFO
1 stop9h 48m
Delta
Fri 6/314:05
SFO
-
IAD
1 stop7h 16m
Delta
Deal found 1/2£194
Sun 1/322:10
IAD
-
SFO
Nonstop6h 18m
United Airlines
Sat 7/316:55
SFO
-
IAD
Nonstop5h 08m
United Airlines
Deal found 3/2£197
Thu 12/316:10
IAD
-
SFO
Nonstop6h 15m
United Airlines
Tue 24/323:20
SFO
-
IAD
Nonstop5h 11m
United Airlines
Deal found 2/2£203
Sat 14/318:05
IAD
-
SFO
1 stop8h 10m
Southwest
Tue 17/306:45
SFO
-
IAD
2 stops13h 55m
Southwest
Deal found 3/2£211
Sun 1/322:10
IAD
-
SFO
Nonstop6h 18m
United Airlines
Fri 6/321:30
SFO
-
IAD
Nonstop5h 06m
United Airlines
Deal found 31/1£217
Wed 4/307:30
IAD
-
SFO
1 stop9h 18m
Delta
Wed 4/322:45
SFO
-
IAD
1 stop10h 08m
Delta
Deal found 2/2£219
Sun 1/319:00
IAD
-
SFO
1 stop8h 05m
Southwest
Wed 4/310:00
SFO
-
IAD
2 stops8h 55m
Southwest
Deal found 1/2£221
Sun 1/319:00
IAD
-
SFO
1 stop8h 05m
Southwest
Sun 8/310:25
SFO
-
IAD
1 stop10h 50m
Southwest
Deal found 1/2£222
Wed 4/307:05
IAD
-
SFO
2 stops19h 54m
Alaska Airlines
Wed 18/306:35
SFO
-
IAD
1 stop7h 47m
Alaska Airlines
Deal found 3/2£223
Sat 7/312:35
IAD
-
SFO
1 stop8h 13m
Delta
Sat 7/322:00
SFO
-
IAD
1 stop7h 10m
Delta
Deal found 2/2£224

Find flight deals from Dulles Intl to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 3 February 2026.

Round-trip from

£188

One-way from

£102

Popular in

December

Cheapest in

February

Average price

£276
United Airlines
  • United Airlines
  • 2/3-9/3
  • Nonstop
  • 11h 21m total
  • Washington, D.C. to San Francisco
Search Deals
Delta
  • Delta
  • 8/5
  • 1 total stop
  • 7h 54m total
  • Washington, D.C. to San Francisco
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£15 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dulles Intl to San Francisco 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, Cheapflights users made 858,174 searches. Data last updated 3 February 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to San Francisco that are best for you.

Fly from

Dulles Intl

Fly to

San Francisco

Route

Depart

Return

Price

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Wed 18/3

12:47-19:10

1 stop9h 23m

San Francisco

Wed 25/3

05:50-16:52

1 stop8h 02m

£188

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Sat 21/2

06:00-10:59

1 stop7h 59m

San Francisco

Tue 24/2

06:05-18:37

1 stop9h 32m

£188

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Sat 28/2

07:00-13:48

1 stop9h 48m

San Francisco

Fri 6/3

14:05-00:21

1 stop7h 16m

£194

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Mon 16/3

17:32-22:36

1 stop8h 04m

San Francisco

Tue 17/3

14:20-00:27

1 stop7h 07m

£195

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Thu 16/4

12:42-20:24

1 stop10h 42m

San Francisco

Wed 22/4

14:00-00:42

1 stop7h 42m

£195

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Wed 15/4

18:37-23:54

1 stop8h 17m

San Francisco

Fri 17/4

22:35-09:50

1 stop8h 15m

£195

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Mon 4/5

18:37-23:54

1 stop8h 17m

San Francisco

Sat 9/5

05:56-16:25

1 stop7h 29m

£195

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Tue 10/3

07:00-13:27

1 stop9h 27m

San Francisco

Thu 12/3

05:50-16:52

1 stop8h 02m

£195

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Sat 7/3

22:10-01:28

Nonstop6h 18m

San Francisco

Sun 8/3

21:30-05:36

Nonstop5h 06m

£203

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Thu 5/3

22:10-01:28

Nonstop6h 18m

San Francisco

Wed 18/3

21:30-05:36

Nonstop5h 06m

£203

Flights are sorted by cheapest return flights first.

Deals found on 2/2

Showing 1-10 of 23 results
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Best time to book a flight from Dulles Intl to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Dulles Intl with our price prediction graph.
Estimated return 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 San Francisco

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to San Francisco?

Use this chart to determine the optimal time to book a return flight from Dulles Intl to San Francisco. Price data was last updated on 30 January 2026.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 72 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Francisco (average of £137). Flying from Washington, D.C. Dulles Intl Airport to San Francisco in June is currently the most expensive (average of £199). 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.

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

Find hourly flight availability from Dulles Intl to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 February 2026.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to San Francisco in the morning. Doing so could potentially save you 65% on the flight price compared to flying in the afternoon, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to San Francisco. 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 San Francisco from Washington, D.C. Dulles Intl?

    Most people fly into San Francisco (SFO) if they book a flight to San Francisco from Washington, D.C. Dulles Intl. On average, San Francisco has 24 inbound flights from Washington, D.C. Dulles Intl per day from 0 airlines. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to San Francisco?

    There are many flights that can get you from Washington, D.C. Dulles Intl Airport to San Francisco in 6h 14m. Fly via Delta or United Airlines to get the fastest option. The distance from Washington, D.C. Dulles Intl Airport to San Francisco is about 2412 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to San Francisco?

    Consider Egyptair (82%), Air China (77%) or Air New Zealand (77%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to San Francisco.

  • Can I find deals for flights from Dulles Intl to San Francisco that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to San Francisco?

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

  • Can I find deals for business class flights from Dulles Intl to San Francisco?

    Yes. Cheapflights offers flight deals from Dulles Intl to San Francisco 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 San Francisco?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Francisco (average of £137). Flying from Washington, D.C. Dulles Intl Airport to San Francisco in June is currently the most expensive (average of £199). 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.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Newark
San Bruno
Bodega Bay
South San Francisco
Sunnyvale
Pacific Grove

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How does Cheapflights help users find flights from Dulles Intl to San Francisco?

When you search for this flight from Dulles Intl to San Francisco, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to San Francisco?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Francisco from Dulles Intl.

Can Cheapflights find flights from Dulles Intl to San Francisco with no change fees?

Certainly. Search results for flights to San Francisco from Dulles Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Dulles Intl to San Francisco become cheaper?

Not ready to book yet? You can track prices for flights from Dulles Intl to San Francisco on Cheapflights with our Price Alert feature and get notified when better prices are available.

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