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Cheap flights from Washington, D.C. Dulles Intl Airport to San Francisco from £148

IAD — SFO
28 Oct — 4 Nov1
1 adult
1 adult, Economy, 0 bags

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

Wed 28/1019:24 -
1 stop28h 09m
Wed 4/1110:00 -
2 stops16h 44m
Deal found 28/9£319
Wed 30/1206:00 -
Nonstop6h 11m
Tue 5/113:10 -
Nonstop5h 09m
Deal found 23/9£322
Wed 4/1107:46 -
2 stops13h 20m
Mon 9/1120:00 -
1 stop18h 40m
Deal found 28/9£323
Sat 31/1007:02 -
2 stops14h 08m
Mon 2/1114:44 -
1 stop23h 56m
Deal found 25/9£325
Mon 2/1118:46 -
2 stops20h 30m
Wed 11/1108:43 -
2 stops18h 01m
Deal found 27/9£327
Thu 3/1218:42 -
1 stop17h 14m
Mon 7/1219:04 -
2 stops19h 35m
Deal found 24/9£328
Fri 25/1222:13 -
Nonstop6h 17m
Wed 30/1222:50 -
Nonstop5h 10m
Deal found 28/9£330
Tue 3/1107:46 -
2 stops13h 20m
Fri 6/1114:44 -
1 stop23h 56m
Deal found 28/9£331
Fri 4/1218:42 -
1 stop17h 14m
Wed 13/106:43 -
1 stop8h 07m
Deal found 27/9£334
Thu 3/1207:00 -
2 stops17h 01m
Tue 8/1219:04 -
2 stops19h 35m
Deal found 28/9£338

Find flight deals from Dulles Intl to San Francisco

Round-trip from

£322

One-way from

£148

Popular in

June

Cheapest in

February

Average price

£429
United Airlines
  • United Airlines
  • 30/12-5/1
  • Nonstop
  • 11h 20m total
  • Washington, D.C. to San Francisco
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Frontier
  • Frontier
  • 26/2-31/12
  • 2 total stops
  • 14h 31m total
  • Washington, D.C. to San Francisco
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£27 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

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

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Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.San Francisco

IAD Washington, D.C. Dulles Intl - SFO San Francisco

IADSFO

Washington, D.C. Dulles Intl

Wed 2/12

19:06-00:10

1 stop8h 04m

San Francisco

Wed 31/12

00:00-03:00

Nonstop0h 00m

£165

Washington, D.C.San Francisco

IAD Washington, D.C. Dulles Intl - SFO San Francisco

IADSFO

Washington, D.C. Dulles Intl

Sat 7/11

07:46-19:10

2 stops14h 24m

San Francisco

Wed 31/12

00:00-03:00

Nonstop0h 00m

£179

Washington, D.C.San Francisco

IAD Washington, D.C. Dulles Intl - SFO San Francisco

IADSFO

Washington, D.C. Dulles Intl

Sun 6/12

19:06-00:10

1 stop8h 04m

San Francisco

Wed 31/12

00:00-03:00

Nonstop0h 00m

£180

Washington, D.C.San Francisco

IAD Washington, D.C. Dulles Intl - SFO San Francisco

IADSFO

Washington, D.C. Dulles Intl

Fri 30/10

16:15-19:24

Nonstop6h 09m

San Francisco

Wed 31/12

00:00-03:00

Nonstop0h 00m

£188

Washington, D.C.San Francisco

IAD Washington, D.C. Dulles Intl - SFO San Francisco

IADSFO

Washington, D.C. Dulles Intl

Thu 5/11

08:15-11:24

Nonstop6h 09m

San Francisco

Wed 31/12

00:00-03:00

Nonstop0h 00m

£188

Washington, D.C.San Francisco

IAD Washington, D.C. Dulles Intl - SFO San Francisco

IADSFO

Washington, D.C. Dulles Intl

Sun 8/11

18:46-18:06

1 stop26h 20m

San Francisco

Wed 31/12

00:00-03:00

Nonstop0h 00m

£194

Washington, D.C.San Francisco

IAD Washington, D.C. Dulles Intl - SFO San Francisco

IADSFO

Washington, D.C. Dulles Intl

Tue 24/11

18:20-21:29

Nonstop6h 09m

San Francisco

Wed 31/12

00:00-03:00

Nonstop0h 00m

£203

Washington, D.C.San Francisco

IAD Washington, D.C. Dulles Intl - SFO San Francisco

IADSFO

Washington, D.C. Dulles Intl

Sun 25/10

06:15-09:14

Nonstop5h 59m

San Francisco

Wed 31/12

00:00-03:00

Nonstop0h 00m

£203
Fastest return journey

Washington, D.C.San Francisco

IAD Washington, D.C. Dulles Intl - SFO San Francisco

IADSFO

Washington, D.C. Dulles Intl

Wed 21/10

18:37-21:26

Nonstop5h 49m

San Francisco

Wed 31/12

00:00-03:00

Nonstop0h 00m

£203

Washington, D.C.San Francisco

IAD Washington, D.C. Dulles Intl - SFO San Francisco

IADSFO

Washington, D.C. Dulles Intl

Wed 2/12

22:19-01:30

Nonstop6h 11m

San Francisco

Wed 31/12

00:00-03:00

Nonstop0h 00m

£223

Flights are sorted by cheapest return flights first.

Deals found on 23/9

Showing 1-10 of 24 resultsSorted by cheapest first
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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

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?

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 44 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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Francisco (average of £291). Flying from Washington, D.C. Dulles Intl Airport to San Francisco in June is currently the most expensive (average of £456). 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?

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to San Francisco in the evening. Doing so could potentially save you 63% on the flight price compared to flying in the afternoon, which is usually more expensive.

How much does it cost for a return flight from Washington, D.C. Dulles Intl Airport to San Francisco?

Airfare is below average for this route at the moment.

Washington, D.C. Dulles Intl Airport to San Francisco flights typically cost between £322 and £475 in October.
The cheapest return price found within the last 5 days was £319 on Alaska Airlines (28 Oct–4 Nov).

Related info for your journey

  • 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 30 inbound flights from Washington, D.C. Dulles Intl per day from 0 airlines. San Francisco is conveniently located just 11.0 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 United Airlines or Delta 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 Air China (85%), Ethiopian Air (77%) or Egyptair (75%) 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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Francisco (average of £291). Flying from Washington, D.C. Dulles Intl Airport to San Francisco in June is currently the most expensive (average of £456). 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
San Bruno
Santa Cruz
Roseville
Newark
Bodega Bay
Sunnyvale

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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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