Question 1

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to San Francisco round-trip?

Accepted Answer

United Airlines, at £203, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to San Francisco.Alternate airlines flying return to your destination include Frontier and Hawaiian Airlines. United Airlines is priced at 36% lower than the current average price of a flight leaving 3 months from now.

Question 2

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to San Francisco one-way?

Accepted Answer

For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as £106. Users have also found prices from £108 and £109 on Hawaiian Airlines and Delta, respectively.

Question 3

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

Accepted Answer

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.

Question 4

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

Accepted Answer

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 £538). Flying from Washington, D.C. Dulles Intl Airport to San Francisco in July is currently the most expensive (average of £803). 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.

Question 5

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to San Francisco?

Accepted Answer

Travellers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to San Francisco flight should consider departing on Thursday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

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

Accepted Answer

The most flights from IAD to SFO are scheduled on a Thursday (47 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (24 on average).

Question 7

E

Accepted Answer

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.

Question 8

E

Accepted Answer

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).

Question 9

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to San Francisco?

Accepted Answer

The cheapest flight price from Washington, D.C. Dulles Intl Airport to San Francisco is £131. On average you can expect to pay £303. The most popular route, (Washington, D.C. Dulles Intl - San Francisco), can usually be booked for £218.

Question 10

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

Accepted Answer

Consider Ethiopian Air (93%), Air China (79%) or Egyptair (77%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to San Francisco.

Question 11

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to San Francisco?

Accepted Answer

Sunday is generally a great day to depart. Flying on this day could help you save up to 361%.

Question 12

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

Accepted Answer

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 42 days in advance, which can save you up to 61% on flights from Washington, D.C. Dulles Intl Airport to San Francisco compared to booking the week you need them. Waiting 42 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £402. For sooner than that we have options available in the next 3 days from £460.

Question 13

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

Accepted Answer

Our data shows that February tends to be the cheapest month to fly to San Francisco from Washington, D.C. Dulles Intl Airport. Users have commonly found prices around £314 for the month, but tickets can be as low as £125. Due to multiple factors, prepare for potentially higher prices in December.

Question 14

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

Accepted Answer

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 74% on the flight price compared to flying in the afternoon, which is usually more expensive.

Question 15

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

Accepted Answer

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 35 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.

Question 16

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

Accepted Answer

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

Question 17

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

Accepted Answer

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.

Question 18

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

Accepted Answer

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.

Question 19

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

Accepted Answer

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.

Question 20

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

Accepted Answer

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.

Question 21

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

Accepted Answer

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.

Question 22

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

Accepted Answer

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.

Round-trip from	£203
One-way from	£106
Popular in	December
Cheapest in	May
Average price	£335
Good round-trip deal	£239 or less
Good one-way deal	£255 or less

Cheap flights from Washington, D.C. Dulles Intl Airport to San Francisco from £106

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 24/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to San Francisco are usually found in May or September, booked 72 days in advance, depart on a Monday or Wednesday and return on a Wednesday

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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 4 July 2025.

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 4 July 2025.

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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 27 June 2025.

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?

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 4 July 2025.

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

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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?

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to San Francisco round-trip?

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to San Francisco one-way?

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

What are the cheapest flights 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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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 4 July 2025.