$65 Cheap Flights from Washington (IAD) to San Francisco (SFO)

View $65 flight on Mon, Dec 8, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to San Francisco Intl. Airport (SFO)

Cheap Flights from Washington to San Francisco (IAD-SFO)

Prices were available within the past 7 days and start at $65 for one-way flights and $160 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Dec 4 - Mon, Dec 8
IAD
Washington
SFO
San Francisco
$160 Roundtrip, found 4 hours ago
$160
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Thu, Dec 4 from Washington to San Francisco, returning Mon, Dec 8, priced at $160 found 4 hours ago
Frontier Airlines
Thu, Dec 4 - Sat, Dec 6
IAD
Washington
SFO
San Francisco
$180 Roundtrip, found 13 hours ago
$180
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Thu, Dec 4 from Washington to San Francisco, returning Sat, Dec 6, priced at $180 found 13 hours ago
Frontier Airlines
Mon, Dec 8 - Sat, Dec 13
IAD
Washington
SFO
San Francisco
$194 Roundtrip, found 7 hours ago
$194
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Mon, Dec 8 from Washington to San Francisco, returning Sat, Dec 13, priced at $194 found 7 hours ago
Frontier Airlines
Thu, Dec 11 - Mon, Dec 15
IAD
Washington
SFO
San Francisco
$196 Roundtrip, just found
$196
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Dec 11 from Washington to San Francisco, returning Mon, Dec 15, priced at $196 just found
American Airlines
Wed, Feb 11 - Sat, Feb 21
IAD
Washington
SFO
San Francisco
$201 Roundtrip, found 6 days ago
$201
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Feb 11 from Washington to San Francisco, returning Sat, Feb 21, priced at $201 found 6 days ago
Frontier Airlines
Thu, Nov 20 - Wed, Dec 3
IAD
Washington
SFO
San Francisco
$204 Roundtrip, found 1 day ago
$204
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Nov 20 from Washington to San Francisco, returning Wed, Dec 3, priced at $204 found 1 day ago
Frontier Airlines
Mon, Dec 8 - Mon, Dec 15
IAD
Washington
SFO
San Francisco
$206 Roundtrip, just found
$206
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Dec 8 from Washington to San Francisco, returning Mon, Dec 15, priced at $206 just found
Southwest Airlines
Wed, Feb 11 - Sat, Feb 21
IAD
Washington
SFO
San Francisco
$210 Roundtrip, found 6 days ago
$210
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Wed, Feb 11 from Washington to San Francisco, returning Sat, Feb 21, priced at $210 found 6 days ago
United
Sat, Dec 6 - Mon, Dec 8
IAD
Washington
SFO
San Francisco
$215 Roundtrip, found 14 hours ago
$215
Roundtrip
found 14 hours ago
Select United flight, departing Sat, Dec 6 from Washington to San Francisco, returning Mon, Dec 8, priced at $215 found 14 hours ago
Alaska Airlines
Thu, Dec 4 - Mon, Dec 8
IAD
Washington
SFO
San Francisco
$219 Roundtrip, found 4 hours ago
$219
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Thu, Dec 4 from Washington to San Francisco, returning Mon, Dec 8, priced at $219 found 4 hours ago

Find the cheapest month to fly from Washington (IAD) to San Francisco (SFO)

April is typically the cheapest month to fly

From $140 - $467 per traveler.

Alternative airports near San Francisco

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Oakland Intl. OAK. Cheapest option available. Average driving time to city center is 26 minutes. Flights from $514
OAK
Oakland Intl.
Cheapest
Average driving time to city center26 min
Flights from $514

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to San Francisco Intl. Airport (SFO) cost?
Get a cheap one-way flight from $65 or cheap return flight from $160 from Washington Dulles Intl. Airport (IAD) to San Francisco Intl. Airport (SFO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to San Francisco Intl. Airport (SFO)?
Flying in December is a good way to save, as it's the cheapest month for flights between IAD and SFO. You'll typically find the lowest prices during the off-season.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to San Francisco Intl. Airport (SFO)?
Take a nonstop flight with United Airlines and head straight from Washington Dulles Intl. Airport (IAD) to San Francisco Intl. Airport (SFO).
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to San Francisco Intl. Airport (SFO)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest IAD to SFO flight.
How many flights per day from Washington Dulles Intl. Airport (IAD) to San Francisco Intl. Airport (SFO)?
When jetting out of Washington Dulles Intl. Airport (IAD), you'll have your pick from an average of 5 daily direct flights to San Francisco Intl. Airport (SFO).
What are the most popular departure times for flights from Washington Dulles Intl. Airport (IAD) to San Francisco Intl. Airport (SFO)?
More travelers fly between IAD and SFO at 2 PM than at any other point in the day. Looking for a quieter experience? Pick a flight outside the busiest times and you could save on your fare as well.
What day of the week has the most flights from IAD to SFO?
Friday has the most flights from Washington Dulles Intl. Airport (IAD) to San Francisco Intl. Airport (SFO). Consider leaving on this day and you'll have a greater chance of finding a departure that works with your plans.
What is the earliest flight from Washington Dulles Intl. Airport (IAD) to San Francisco Intl. Airport (SFO)?
Washington Dulles Intl. Airport (IAD)'s earliest flight to San Francisco Intl. Airport (SFO) is at approximately 6:32AM UTC-5. With a total journey time of 6h 8m, you'll land at around 9:40AM UTC-8.
How long does it take to fly from Washington Dulles Intl. Airport (IAD) to San Francisco Intl. Airport (SFO)?
Flights from IAD to SFO have an average travel time of 6 hours and 6 minutes. The distance between these two airports is 2,400 mi.
What airline has the least delays from IAD to SFO?
With 81% of flights usually landing on schedule, United Airlines has the best on-time performance for nonstop flights from Washington Dulles Intl. Airport (IAD) to San Francisco Intl. Airport (SFO). To check your flight status and receive notifications about any changes, use the Expedia App.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to San Francisco Intl. Airport (SFO)?
Opt for a flight from Washington Dulles Intl. Airport (IAD) to San Francisco Intl. Airport (SFO) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for San Francisco from Washington Dulles Intl. Airport (IAD)?
San Francisco Intl. Airport (SFO) is the only airport in San Francisco with direct flights from Washington Dulles Intl. Airport (IAD). Compare the available options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to San Francisco Intl. Airport (SFO) last-minute?
Waiting until just before your trip to book your flight from IAD to SFO often results in higher prices. While it's possible to find some last-minute offers, they're not always guaranteed. Keep your travel schedule open for the best chance of snagging a bargain.
Is it cheaper to book an IAD to SFO flight and hotel package?
You'll typically save money by securing an IAD to SFO flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After selecting your ideal accommodations and flights, consider adding extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to San Francisco Intl. Airport (SFO)?
It's usually possible to reschedule or cancel your IAD to SFO flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
San Francisco Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$160
Distance
2413 mi
Average flight time
3 hours 35 mins

Book with confidence

Washington to San Francisco Flights

The cheapest times to fly from Washington to San Francisco

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to San Francisco are during the month of December. You can find some of the cheapest flights from Washington to San Francisco with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to San Francisco

Sunday is one of the best days to book for cheap flights from Washington to San Francisco: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to San Francisco

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to San Francisco in 2025. You can also book with separate airlines for your outbound and return journeys, from $65 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to San Francisco flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to San Francisco airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Washington to San Francisco Flights

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*Available to One Key members.