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$182+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SFO
Aug 16 — Aug 231
Sun 8/16
Sun 8/23
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to San Francisco are usually found in February or November, booked 64 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Cheap 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 July 17, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:49 am
IAD
-
SFO
1 stop14h 29m
Frontier
Mon 8/39:00 pm
SFO
-
IAD
1 stop8h 20m
Frontier
Deal found 7/12$373
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:28 pm
IAD
-
SFO
2 stops24h 57m
Frontier
Wed 8/124:30 pm
SFO
-
IAD
1 stop12h 50m
Frontier
Deal found 7/16$375
This Kiwi.com deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/59:50 am
IAD
-
SFO
1 stop8h 30m
Frontier
Thu 8/69:05 pm
SFO
-
IAD
1 stop8h 15m
Frontier
Deal found 7/12$376
This Alaska Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:35 pm
IAD
-
SFO
1 stop16h 11m
Alaska Airlines
Sat 8/297:08 am
SFO
-
IAD
1 stop8h 06m
Alaska Airlines
Deal found 7/13$377
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:48 am
IAD
-
SFO
1 stop14h 25m
Frontier
Thu 8/208:56 pm
SFO
-
IAD
1 stop8h 08m
Frontier
Deal found 7/15$378
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:49 am
IAD
-
SFO
1 stop14h 29m
Frontier
Fri 8/711:05 pm
SFO
-
IAD
1 stop14h 29m
Frontier
Deal found 7/15$379
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:48 am
IAD
-
SFO
1 stop14h 25m
Frontier
Mon 8/109:05 pm
SFO
-
IAD
1 stop8h 15m
Frontier
Deal found 7/15$380
This Kiwi.com deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/59:50 am
IAD
-
SFO
1 stop8h 30m
Frontier
Mon 8/1012:54 am
SFO
-
IAD
2 stops12h 46m
Frontier
Deal found 7/13$382
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:48 am
IAD
-
SFO
1 stop14h 25m
Frontier
Mon 8/176:04 pm
SFO
-
IAD
2 stops13h 03m
Frontier
Deal found 7/14$383
This American Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2412:30 pm
IAD
-
SFO
1 stop8h 38m
American Airlines
Tue 9/2912:00 pm
SFO
-
IAD
1 stop7h 51m
American Airlines
Deal found 7/13$384
This Kiwi.com deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:32 pm
IAD
-
SFO
2 stops23h 53m
Frontier
Wed 8/124:30 pm
SFO
-
IAD
1 stop12h 50m
Frontier
Deal found 7/12$385

Find flight deals from Dulles Intl to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$373
(Kiwi.com)

One-way from

$182
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$511

Good round-trip deal

$528 or less

Good one-way deal

$314 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-San Francisco flights.
Search Deals
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. 14% potential increase in price ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to San Francisco.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to San Francisco.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 17, 2026.
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

Cheapest round-trip

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Thu 10/1

6:37 pm-9:26 pm

Nonstop5h 49m

San Francisco

Sun 10/4

10:40 pm-7:01 am

Nonstop5h 21m

$427

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Thu 8/20

2:47 pm-5:35 pm

Nonstop5h 48m

San Francisco

Sun 8/23

9:30 pm-5:55 am

Nonstop5h 25m

$427

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Wed 11/25

8:15 am-11:22 am

Nonstop6h 07m

San Francisco

Thu 12/3

1:10 pm-9:27 pm

Nonstop5h 17m

$427

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Sun 8/16

3:09 pm-10:00 pm

1 stop9h 51m

San Francisco

Wed 8/26

10:40 am-11:59 pm

1 stop10h 19m

$432

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Fri 10/23

7:00 am-2:27 pm

1 stop10h 27m

San Francisco

Mon 10/26

1:22 pm-5:40 am

2 stops13h 18m

$450

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Wed 8/12

12:40 pm-3:28 pm

Nonstop5h 48m

San Francisco

Tue 8/18

11:14 pm-7:35 am

Nonstop5h 21m

$464

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Tue 11/24

4:00 pm-10:51 pm

1 stop9h 51m

San Francisco

Mon 11/30

6:00 am-6:26 pm

1 stop9h 26m

$467

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Wed 10/14

2:47 pm-5:35 pm

Nonstop5h 48m

San Francisco

Wed 10/21

10:40 pm-7:01 am

Nonstop5h 21m

$467

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Mon 9/14

5:57 pm-11:40 pm

1 stop8h 43m

San Francisco

Thu 9/17

3:26 pm-5:40 am

1 stop11h 14m

$494

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Wed 8/26

7:00 am-5:22 pm

2 stops13h 22m

San Francisco

Wed 9/2

3:03 pm-5:40 am

2 stops11h 37m

$507

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/12

Showing 1-10 of 23 resultsSorted by cheapest first
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Compare providers for flights from Dulles Intl to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to San Francisco in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
GotogatePrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

Booking 63 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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Francisco (average of $373). Flying from Washington, D.C. Dulles Intl Airport to San Francisco in June is currently the most expensive (average of $598). 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?

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 July 17, 2026.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to San Francisco at noon. Doing so could potentially save you 26% on the flight price compared to flying in the evening, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to San Francisco. Price data was last updated on July 11, 2026.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to San Francisco flight should consider departing on Wednesday at noon when fares are most often at their lowest. Tuesday evenings 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?

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

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. Dulles Intl Airport to San Francisco trip
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines and SFO

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated July 17, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andUnited 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
7.9
Good
12,661 reviews

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
7.9
Good
12,661 reviews
Alaska Airlines
7.9
Good
12,661 reviews

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
7.8
Good
8,472 reviews
Alaska Airlines
7.9
Good
12,661 reviews

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
9,993 reviews
Alaska Airlines
7.9
Good
12,661 reviews

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.1
Good
11,816 reviews
Alaska Airlines
7.9
Good
12,661 reviews

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Frontier
5.6
Fair
2,796 reviews
Alaska Airlines
7.9
Good
12,661 reviews

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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?

    San Francisco (SFO), located 11.0 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to San Francisco. 5 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 26 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?

    Frontier and Alaska Airlines can get you from Washington, D.C. Dulles Intl Airport to San Francisco in just under 14h 29m. Your travel time can differ by up to 1h 42m. 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 ($148), Delta ($149), and American Airlines ($272) 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 Southwest. According to our data, you can fly for as low as $92. Users have also found prices from $97 and $128 on Frontier and Delta, 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: Air China (83%), Egyptair (83%), Ethiopian Air (75%).

  • 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 $233. While the most popular route (Washington, D.C. Dulles Intl - San Francisco) can be booked for $162 on average, our data indicates $2,069 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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Francisco (average of $373). Flying from Washington, D.C. Dulles Intl Airport to San Francisco in June is currently the most expensive (average of $598). 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

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
South San Francisco
Santa Clara
Santa Cruz
Fairfield
Burlingame
Rancho Cordova
Roseville
Cupertino
Emeryville
Newark
Watsonville
San Bruno
Hayward
San Ramon
Redwood City
San Carlos
Turlock
Vallejo
San Lorenzo
Davis

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Alternative routes for Dulles Intl to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Dulles Intl to San Francisco

Discover the top 5 airlines that operate flights from Dulles Intl to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$148Average$305FlexibilityNo cancel feeOn-time62%
DeltaCheapest$149Average$410FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$272Average$526FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$276Average$467FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$276Average$502FlexibilityNo cancel feeOn-time69%

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