What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

What is the most punctual flight time for Washington, D.C. to San Francisco flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

Which airline has the best punctuality record on Washington, D.C. to San Francisco flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 16% of flights being delayed.

How often are flights from Washington, D.C. to San Francisco delayed?

About 17% of weekly flights between Washington, D.C. and San Francisco have experienced delays in the past year, with the average delay time being 191 minutes.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to San Francisco

The most flights from IAD to SFO are scheduled on a Monday (35 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (15 on average).

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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

Consider Air China (85%), Ethiopian Air (80%) or Egyptair (79%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to San Francisco.

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 23 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.

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.

£157+ Cheap Flights from Washington, D.C. Dulles Intl Airport to San Francisco

Cheap flight deals from Dulles Intl to San Francisco

Enter your travel dates to find the best prices.

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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 6 October 2026.

Fri 4/1218:42 -

2 stops20h 33m

Mon 7/1210:46 -

1 stop27h 53m

Deal found 5/10£323

Sat 7/1118:46 -

1 stop17h 06m

Sat 14/1107:04 -

1 stop7h 36m

Deal found 3/10£324

Mon 2/1107:46 -

1 stop16h 57m

Sun 8/1106:08 -

1 stop20h 36m

Deal found 6/10£327

Wed 16/1206:15 -

Nonstop6h 07m

Wed 6/122:54 -

Nonstop5h 11m

Deal found 6/10£328

Mon 23/1118:39 -

1 stop17h 13m

Tue 1/1219:04 -

2 stops19h 35m

Deal found 2/10£328

Tue 15/1207:00 -

1 stop16h 52m

Mon 25/106:43 -

1 stop8h 07m

Deal found 6/10£329

Wed 4/1112:35 -

Nonstop6h 09m

Mon 9/1113:50 -

Nonstop5h 06m

Deal found 2/10£330

Wed 4/1107:46 -

2 stops15h 30m

Mon 9/1114:44 -

1 stop23h 56m

Deal found 5/10£331

Sat 31/1007:02 -

2 stops14h 08m

Mon 2/1114:58 -

2 stops11h 46m

Deal found 2/10£331

Tue 15/1218:42 -

1 stop17h 14m

Fri 22/106:43 -

1 stop8h 07m

Deal found 6/10£333

Wed 28/1019:24 -

2 stops25h 46m

Wed 4/1110:00 -

2 stops16h 44m

Deal found 5/10£334

Sat 5/1218:42 -

2 stops20h 33m

Tue 8/1216:14 -

2 stops22h 25m

Deal found 5/10£335

Find flight deals from Dulles Intl to San Francisco

Round-trip from	£323
One-way from	£157
Popular in	June
Cheapest in	February
Average price	£402

Alaska Airlines
4/12-7/12
3 total stops
45h 59m total
Washington, D.C. to San Francisco

Search Deals

Alaska Airlines
17/11-31/12
2 total stops
13h 20m total
Washington, D.C. to San Francisco

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (£24 potential increase over avg. return price).

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Cheapest flight prices on average. 2% potential price decrease (£6 potential savings vs. average return price).

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Average for round-trip flights in October 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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Washington, D.C.San Francisco

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

IADSFO

Washington, D.C. Dulles Intl

Wed 11/11

08:15-11:22

Nonstop6h 07m

San Francisco

Wed 31/12

00:00-03:00

Nonstop0h 00m

£173

Washington, D.C.San Francisco

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

IADSFO

Washington, D.C. Dulles Intl

Fri 22/1

15:00-20:49

1 stop8h 49m

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

Mon 9/11

12:35-15:44

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 26/11

08:15-11:22

Nonstop6h 07m

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

Wed 16/12

07:00-13:24

1 stop9h 24m

San Francisco

Wed 31/12

00:00-03:00

Nonstop0h 00m

£195

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

Tue 22/12

19:39-22:52

Nonstop6h 13m

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

Thu 29/10

09:25-12:32

Nonstop6h 07m

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

Sat 20/3

11:05-18:48

1 stop10h 43m

San Francisco

Wed 31/12

00:00-03:00

Nonstop0h 00m

£219

Washington, D.C.San Francisco

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

IADSFO

Washington, D.C. Dulles Intl

Sat 26/12

22:13-01:30

Nonstop6h 17m

San Francisco

Wed 31/12

00:00-03:00

Nonstop0h 00m

£232

Flights are sorted by cheapest return flights first.

Deals found on 3/10

Showing 1-10 of 23 resultsSorted by cheapest first

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.

IAD-SFO

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

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Airlines

Delays

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 88 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 £457). 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 £337 and £493 in December.
The cheapest return price found within the last 5 days was £323 on Alaska Airlines (4 Dec–7 Dec).

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 23 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 5h 57m. Fly via Alaska Airlines, 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 Air China (85%), Ethiopian Air (80%) or Egyptair (79%) 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 £457). 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.

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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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Cheap flights from Washington, D.C. Dulles Intl Airport to San Francisco from £157

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Dulles Intl to San Francisco

Cheapest flights from Dulles Intl to San FranciscoExplore 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 6 October 2026.

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 6 October 2026.

Best flights from Dulles Intl to San FranciscoDiscover carefully curated flight deals from Dulles Intl to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 October 2026.

Discover carefully curated flight deals from Dulles Intl to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 October 2026.

Direct flights from Dulles Intl to San FranciscoExplore direct flight options from Dulles Intl to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 October 2026.

Explore direct flight options from Dulles Intl to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 October 2026.

Last-minute flights from Dulles Intl to San FranciscoDiscover last-minute flight deals from Dulles Intl to San Francisco. Data last updated 6 October 2026 and is based on user searches.

Discover last-minute flight deals from Dulles Intl to San Francisco. Data last updated 6 October 2026 and is based on user searches.

One-way flights from Dulles Intl to San FranciscoSearch for one-way flight options from Dulles Intl to San Francisco. Find affordable one-way fares based on user searches. Data last updated 6 October 2026.

Search for one-way flight options from Dulles Intl to San Francisco. Find affordable one-way fares based on user searches. Data last updated 6 October 2026.

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

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.

Cheapflights Insights

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 88 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?

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 £337 and £493 in December.The cheapest return price found within the last 5 days was £323 on Alaska Airlines (4 Dec–7 Dec).

Weekly flight availability from Washington, D.C. Dulles Intl Airport to San Francisco

The most flights from IAD to SFO are scheduled on a Monday (35 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (15 on average).

How often are flights from Washington, D.C. to San Francisco delayed?

About 17% of weekly flights between Washington, D.C. and San Francisco have experienced delays in the past year, with the average delay time being 191 minutes.

What is the most punctual flight time for Washington, D.C. to San Francisco flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to San Francisco flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 16% of flights being delayed.

Related info for your journey

What airport do you fly into for flights to San Francisco from Washington, D.C. Dulles Intl?

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

What are the most reliable airlines 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?

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

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

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

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Dulles Intl and San Francisco flights

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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 6 October 2026.

Best flights from Dulles Intl to San Francisco
Discover carefully curated flight deals from Dulles Intl to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 October 2026.

Direct flights from Dulles Intl to San Francisco
Explore direct flight options from Dulles Intl to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 October 2026.

Last-minute flights from Dulles Intl to San Francisco
Discover last-minute flight deals from Dulles Intl to San Francisco. Data last updated 6 October 2026 and is based on user searches.

One-way flights from Dulles Intl to San Francisco
Search for one-way flight options from Dulles Intl to San Francisco. Find affordable one-way fares based on user searches. Data last updated 6 October 2026.

Washington, D.C. Dulles Intl Airport to San Francisco flights typically cost between £337 and £493 in December.
The cheapest return price found within the last 5 days was £323 on Alaska Airlines (4 Dec–7 Dec).