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

For one-way options, check prices for Delta. According to our data, you can fly for as low as $149. Users have also found prices from $157 and $159 on Alaska Airlines and Southwest, respectively.

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 (29 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (23 on average).

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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

Looking at all options, your cheapest flight can be booked for $168. While the most popular route (Washington, D.C. Dulles Intl - San Francisco) can be booked for $195 on average, our data indicates $1,006 when flying 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?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to San Francisco on time: Ethiopian Air (93%), Air China (91%), Egyptair (85%).

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

American Airlines, Alaska Airlines and Delta are the most popular airlines when flying from Washington, D.C. Dulles Intl Airport to San Francisco.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, February can be a great choice for travel to San Francisco. Flights to San Francisco from Washington, D.C. Dulles Intl Airport in February are about $425 on average during February, but can be found for as low as $170.

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

San Francisco (SFO), located 11.8 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to San Francisco. 7 airlines have flights to San Francisco from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to San Francisco should not be difficult; the airport handles an average of 27 inbound flights from Washington, D.C. Dulles Intl per day.

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 vacation 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.

$146+ Cheap Flights from Washington, D.C. Dulles Intl Airport to San Francisco

Q: How much does it cost to fly round-trip 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 $517 in October. The cheapest round-trip price found within the last 3 days was $273 on Frontier (Oct 25-Nov 8).

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Dulles Intl to San Francisco with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to San Francisco are usually found in May or July, booked 31 days in advance, depart on a Thursday or Friday and return on a Thursday

Cheap flight deals from Dulles Intl to San Francisco

Round-trip from	$273 (CheapOair)
One-way from	$146 (Kiwi.com)
Popular in	December
Cheapest in	May
Average price	$417
Good round-trip deal	$400 or less
Good one-way deal	$245 or less

From Washington, D.C. Dulles Intl to San Francisco

Search Deals

One-way flight from Washington, D.C. Dulles Intl to San Francisco

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($53 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to San Francisco.

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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to San Francisco.

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Find flight deals from Dulles Intl to San Francisco

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 September 9, 2025.

Mon 9/151:55 pmIAD - SFO

1 stop10h 26mFrontier

Sat 9/2011:00 pmSFO - IAD

1 stop10h 55mFrontier

Deal found 9/6

$273

Mon 9/151:55 pmIAD - SFO

1 stop10h 26mFrontier

Fri 9/1911:57 pmSFO - IAD

1 stop9h 05mFrontier

Deal found 9/6

$274

Thu 9/251:55 pmIAD - SFO

1 stop10h 26mFrontier

Sun 9/2810:37 pmSFO - IAD

2 stops42h 18mFrontier

Deal found 9/7

$275

Sat 10/41:02 pmIAD - SFO

2 stops11h 19mFrontier

Fri 10/1010:23 pmSFO - IAD

1 stop13h 54mFrontier

Deal found 9/6

$276

Tue 9/3010:07 amIAD - SFO

1 stop10h 25mDelta

Wed 10/19:38 pmSFO - IAD

1 stop8h 31mDelta

Deal found 9/6

$277

Fri 9/266:10 amIAD - SFO

1 stop18h 11mFrontier

Sun 9/286:29 amSFO - IAD

2 stops38h 46mFrontier

Deal found 9/7

$278

Mon 9/221:55 pmIAD - SFO

1 stop10h 26mFrontier

Wed 9/247:10 amSFO - IAD

2 stops26h 45mFrontier

Deal found 9/8

$279

Mon 9/151:55 pmIAD - SFO

2 stops12h 07mFrontier

Fri 9/2611:57 pmSFO - IAD

1 stop9h 05mFrontier

Deal found 9/6

$280

Fri 10/176:15 amIAD - SFO

1 stop18h 08mFrontier

Sat 10/256:44 amSFO - IAD

2 stops13h 45mFrontier

Deal found 9/7

$281

Thu 9/1810:17 amIAD - SFO

2 stops15h 58mFrontier

Mon 9/2211:57 pmSFO - IAD

2 stops40h 58mFrontier

Deal found 9/7

$282

Thu 10/96:15 amIAD - SFO

1 stop18h 08mFrontier

Mon 10/1310:17 pmSFO - IAD

2 stops42h 29mFrontier

Deal found 9/7

$283

Thu 9/251:55 pmIAD - SFO

1 stop10h 26mFrontier

Mon 10/611:00 pmSFO - IAD

1 stop17h 46mFrontier

Deal found 9/6

$284

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 layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2025.

Sat 10/186:30 amIAD - SFO

Nonstop5h 49mUnited Airlines

Sat 10/2511:56 pmSFO - IAD

Nonstop5h 19mUnited Airlines

Deal found 9/7

$277

Tue 10/145:42 pmIAD - SFO

1 stop18h 24mAlaska Airlines

Tue 10/287:00 amSFO - IAD

1 stop7h 13mAlaska Airlines

Deal found 9/8

$296

Sat 10/46:00 amIAD - SFO

1 stop7h 40mDelta

Sat 10/181:45 pmSFO - IAD

1 stop7h 55mDelta

Deal found 9/8

$297

Tue 9/3012:35 pmIAD - SFO

1 stop7h 57mDelta

Thu 10/26:15 amSFO - IAD

1 stop7h 12mDelta

Deal found 9/8

$308

Mon 11/38:30 amIAD - SFO

Nonstop5h 59mUnited Airlines

Thu 11/61:25 pmSFO - IAD

Nonstop5h 00mUnited Airlines

Deal found 9/8

$337

Fri 11/76:05 amIAD - SFO

1 stop7h 28mDelta

Tue 11/116:00 amSFO - IAD

1 stop9h 19mDelta

Deal found 9/7

$308

Sat 10/115:42 pmIAD - SFO

1 stop17h 23mAlaska Airlines

Sun 11/29:58 pmSFO - IAD

1 stop16h 15mAlaska Airlines

Deal found 9/7

$346

Thu 11/67:35 amIAD - SFO

1 stop11h 30mDelta

Mon 11/1012:45 amSFO - IAD

1 stop7h 22mDelta

Deal found 9/8

$317

Tue 10/286:18 amIAD - SFO

1 stop7h 35mDelta

Sun 11/21:45 pmSFO - IAD

1 stop7h 55mDelta

Deal found 9/8

$317

Fri 10/315:10 pmIAD - SFO

1 stop8h 25mDelta

Mon 11/310:35 amSFO - IAD

1 stop11h 05mDelta

Deal found 9/8

$337

Thu 12/47:01 amIAD - SFO

1 stop8h 35mDelta

Mon 12/812:45 amSFO - IAD

1 stop7h 33mDelta

Deal found 9/8

$347

Wed 11/197:10 amIAD - SFO

1 stop8h 05mDelta

Sun 11/231:58 pmSFO - IAD

1 stop7h 56mDelta

Deal found 9/7

$357

Last-minute flights from Dulles Intl to San Francisco
Discover last-minute flight deals from Dulles Intl to San Francisco. Data last updated September 9, 2025 and is based on user searches.

Sat 9/137:00 amIAD - SFO

1 stop17h 21mFrontier

Sat 9/2011:00 pmSFO - IAD

1 stop22h 15mFrontier

Deal found 9/8

$284

Thu 9/1810:17 amIAD - SFO

2 stops15h 58mFrontier

Mon 9/2211:57 pmSFO - IAD

2 stops40h 58mFrontier

Deal found 9/8

$282

Mon 9/221:55 pmIAD - SFO

1 stop10h 26mFrontier

Wed 9/247:10 amSFO - IAD

2 stops26h 45mFrontier

Deal found 9/8

$279

Thu 9/251:55 pmIAD - SFO

1 stop10h 26mFrontier

Sun 9/2810:37 pmSFO - IAD

2 stops42h 18mFrontier

Deal found 9/7

$275

Fri 9/266:10 amIAD - SFO

1 stop18h 11mFrontier

Sun 9/286:29 amSFO - IAD

2 stops38h 46mFrontier

Deal found 9/7

$278

Sat 9/271:02 pmIAD - SFO

2 stops11h 19mFrontier

Sun 10/124:55 pmSFO - IAD

1 stop13h 14mFrontier

Deal found 9/8

$285

Wed 10/16:00 amIAD - SFO

1 stop7h 34mDelta

Tue 10/76:10 amSFO - IAD

1 stop7h 47mDelta

Deal found 9/7

$277

Sat 10/47:00 amIAD - SFO

1 stop17h 21mFrontier

Wed 10/88:00 amSFO - IAD

2 stops36h 29mFrontier

Deal found 9/7

$274

Sat 10/41:02 pmIAD - SFO

2 stops11h 19mFrontier

Fri 10/1010:23 pmSFO - IAD

1 stop13h 54mFrontier

Deal found 9/6

$276

Thu 10/96:15 amIAD - SFO

1 stop18h 08mFrontier

Mon 10/1310:17 pmSFO - IAD

2 stops42h 29mFrontier

Deal found 9/7

$283

Fri 10/176:15 amIAD - SFO

1 stop18h 08mFrontier

Sat 10/256:44 amSFO - IAD

2 stops13h 45mFrontier

Deal found 9/7

$281

Sat 10/257:15 amIAD - SFO

1 stop17h 08mFrontier

Sat 11/810:23 pmSFO - IAD

1 stop22h 48mFrontier

Deal found 9/7

$273

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 September 9, 2025.

Mon 10/275:00 pmIAD - SFO

2 stops31h 22mFrontier

Deal found 9/8

$146

Sat 9/275:52 pmIAD - SFO

1 stop8h 48mAlaska Airlines

Deal found 9/6

$148

Mon 9/295:25 pmIAD - SFO

1 stop8h 16mDelta

Deal found 9/7

$149

Sun 9/2110:17 amIAD - SFO

1 stop15h 45mFrontier

Deal found 9/7

$150

Tue 11/118:40 amIAD - SFO

2 stops38h 30mMultiple Airlines

Deal found 9/8

$151

Mon 9/297:14 pmIAD - SFO

2 stops29h 07mFrontier

Deal found 9/6

$152

Thu 11/66:00 amIAD - SFO

1 stop18h 11mFrontier

Deal found 9/8

$153

Sat 9/201:02 pmIAD - SFO

2 stops22h 13mFrontier

Deal found 9/7

$154

Tue 10/285:40 pmIAD - SFO

2 stops18h 13mAlaska Airlines

Deal found 9/8

$157

Fri 9/261:55 pmIAD - SFO

1 stop10h 26mFrontier

Deal found 9/8

$158

Tue 10/75:30 pmIAD - SFO

Nonstop5h 38mUnited Airlines

Deal found 9/8

$159

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.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Sat 10/18

6:30 am-9:19 am

Nonstop5h 49m

San Francisco

Sat 10/25

11:56 pm-8:15 am

Nonstop5h 19m

$277

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Tue 10/14

5:42 pm-9:06 am

1 stop18h 24m

San Francisco

Tue 10/28

7:00 am-5:13 pm

1 stop7h 13m

$296

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Sat 10/4

6:00 am-10:40 am

1 stop7h 40m

San Francisco

Sat 10/18

1:45 pm-12:40 am

1 stop7h 55m

$297

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Tue 9/30

12:35 pm-5:32 pm

1 stop7h 57m

San Francisco

Thu 10/2

6:15 am-4:27 pm

1 stop7h 12m

$308

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Fri 11/7

6:05 am-10:33 am

1 stop7h 28m

San Francisco

Tue 11/11

6:00 am-6:19 pm

1 stop9h 19m

$308

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Thu 11/6

7:35 am-4:05 pm

1 stop11h 30m

San Francisco

Mon 11/10

12:45 am-11:07 am

1 stop7h 22m

$317

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Tue 10/28

6:18 am-10:53 am

1 stop7h 35m

San Francisco

Sun 11/2

1:45 pm-12:40 am

1 stop7h 55m

$317

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Mon 11/3

8:30 am-11:29 am

Nonstop5h 59m

San Francisco

Thu 11/6

1:25 pm-9:25 pm

Nonstop5h 00m

$337

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Fri 10/31

5:10 pm-10:35 pm

1 stop8h 25m

San Francisco

Mon 11/3

10:35 am-12:40 am

1 stop11h 05m

$337

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Sat 10/11

5:42 pm-8:05 am

1 stop17h 23m

San Francisco

Sun 11/2

9:58 pm-5:13 pm

1 stop16h 15m

$346

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/7

Showing 1-10 of 24 results

The best insider tips for Washington, D.C. Dulles Intl Airport to San Francisco flights

Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. Dulles Intl Airport to San Francisco trip

Airlines

United Airlines

United's Economy Plus offers extra legroom, perfect for comfort on longer domestic routes.

United's Polaris Lounges provide exclusive amenities like showers and dining for premium passengers.

Read more about United Airlinesby Harriet Baskas

Alaska Airlines

Alaska's Premium Class offers extra legroom and free cocktails, ideal for added comfort on longer flights.

Alaska's Wi-Fi is a flat fee, allowing business travelers to work efficiently during flights.

Read more about Alaska Airlinesby Robert Schrader

Airports

IAD

For a smooth departure from IAD, use the Aerotrain to quickly reach distant gates. Pay attention to signage as it's not a loop system.

SFO

Use BART for a cost-effective trip from SFO to downtown San Francisco. The journey takes about 40 minutes.

Our travel experts

Harriet Baskas

Expert on United Airlines and SFO

Robert Schrader

Expert on Alaska Airlines

Ramsey Qubein

Expert on IAD

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 round-trip 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

Prices

Airlines

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

Booking 31 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Francisco (average of $276). Flying from Washington, D.C. Dulles Intl Airport to San Francisco in June is currently the most expensive (average of $358). 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 morning. Doing so could potentially save you 27% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

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

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to San Francisco?

Reviews of airlines servicing San Francisco

See what other customers who have flown with Alaska Airlines, Hawaiian Airlines, and United Airlines from Washington, D.C. Dulles Intl Airport to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

Hawaiian Airlines

7.8

Good

2,721 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

United Airlines

7.4

Good

8,943 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

Frontier

5.8

Fair

3,186 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

Related info for your journey

What airport do you fly into for flights to San Francisco from Washington, D.C. Dulles Intl?
San Francisco (SFO), located 11.8 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to San Francisco. 7 airlines have flights to San Francisco from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to San Francisco should not be difficult; the airport handles an average of 27 inbound flights from Washington, D.C. Dulles Intl per day.
How long is the flight from Washington, D.C. Dulles Intl Airport to San Francisco?
United Airlines, Alaska Airlines, and Delta can get you from Washington, D.C. Dulles Intl Airport to San Francisco in just under 5h 49m. Your travel time can differ by up to 12h 35m. The distance from Washington, D.C. Dulles Intl Airport to San Francisco is about 2412 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to San Francisco round-trip?
According to our current data, Frontier ($138), Delta ($256), and Alaska Airlines ($262) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to San Francisco. Frontier is 68% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to San Francisco one-way?
For one-way options, check prices for Delta. According to our data, you can fly for as low as $149. Users have also found prices from $157 and $159 on Alaska Airlines and Southwest, respectively.
What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to San Francisco?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to San Francisco on time: Ethiopian Air (93%), Air China (91%), Egyptair (85%).
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to San Francisco?
Looking at all options, your cheapest flight can be booked for $168. While the most popular route (Washington, D.C. Dulles Intl - San Francisco) can be booked for $195 on average, our data indicates $1,006 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 vacation 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Francisco (average of $276). Flying from Washington, D.C. Dulles Intl Airport to San Francisco in June is currently the most expensive (average of $358). 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

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Turlock

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Antioch

Watsonville

Hollister

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Top 7 airlines flying from Dulles Intl to San Francisco

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$138	Average$301	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$256	Average$335	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$262	Average$397	FlexibilityNo cancel fee	On-time75%
Hawaiian Airlines	Cheapest$267	Average$397	FlexibilityNo cancel fee	On-time85%
Southwest	Cheapest$296	Average$406	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$298	Average$475	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$331	Average$497	FlexibilityNo cancel fee	On-time71%

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$146+ Cheap flights from Dulles Intl (IAD) to San Francisco (SFO)

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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to San Francisco with Cheapflights

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to San Francisco are usually found in May or July, booked 31 days in advance, depart on a Thursday or Friday and return on a Thursday

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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 September 9, 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 September 9, 2025.

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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 September 9, 2025.