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$117+ Cheap flights from Dulles Intl (IAD) to San Francisco Bay Area

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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SFO
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Dulles Intl to San Francisco Bay Area

Cheapest flights from Dulles Intl to San Francisco Bay Area
Explore the most affordable flight options available from Dulles Intl to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Frontier deal was found by Cheapflights users on 12/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:05 amIAD - SFO
1 stop10h 08mFrontier
Mon 1/511:20 pmSFO - IAD
1 stop9h 08mFrontier
Deal found 12/17$312
This Expedia deal was found by Cheapflights users on 12/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:05 amIAD - SFO
1 stop10h 08mFrontier
Sun 1/1111:35 pmSFO - IAD
1 stop8h 53mFrontier
Deal found 12/16$347
This Frontier deal was found by Cheapflights users on 12/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:34 amIAD - SFO
1 stop9h 39mFrontier
Mon 1/511:20 pmSFO - IAD
1 stop9h 08mFrontier
Deal found 12/16$362
This CheapOair deal was found by Cheapflights users on 12/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/185:35 amIAD - SFO
1 stop10h 38mFrontier
Mon 1/511:20 pmSFO - IAD
1 stop9h 08mFrontier
Deal found 12/16$363
This Frontier deal was found by Cheapflights users on 12/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:05 amIAD - SFO
1 stop10h 08mFrontier
Fri 12/2611:20 pmSFO - IAD
1 stop9h 18mFrontier
Deal found 12/16$367
This Frontier deal was found by Cheapflights users on 12/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:05 amIAD - SFO
1 stop10h 08mFrontier
Fri 1/911:28 pmSFO - IAD
1 stop9h 00mFrontier
Deal found 12/16$377
This Frontier deal was found by Cheapflights users on 12/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:34 amIAD - SFO
1 stop9h 39mFrontier
Sat 1/1711:20 pmSFO - IAD
1 stop9h 23mFrontier
Deal found 12/16$381
This Priceline deal was found by Cheapflights users on 12/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:34 amIAD - SFO
1 stop9h 39mFrontier
Thu 1/811:20 pmSFO - IAD
1 stop9h 08mFrontier
Deal found 12/16$383
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/252:24 pmIAD - SJC
1 stop9h 52mUnited Airlines
Sat 1/178:40 amSJC - IAD
1 stop9h 27mUnited Airlines
Deal found 12/17$388
This Frontier deal was found by Cheapflights users on 12/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:34 amIAD - SFO
1 stop9h 39mFrontier
Sun 1/1111:35 pmSFO - IAD
1 stop12h 52mFrontier
Deal found 12/16$397
This Expedia deal was found by Cheapflights users on 12/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:05 amIAD - SFO
1 stop10h 08mMultiple Airlines
Tue 1/207:00 amSFO - IAD
1 stop7h 04mMultiple Airlines
Deal found 12/16$409
This Frontier deal was found by Cheapflights users on 12/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:05 amIAD - SFO
1 stop10h 08mFrontier
Mon 1/511:20 pmSFO - IAD
1 stop9h 08mFrontier
Deal found 12/16$412

Find flight deals from Dulles Intl to San Francisco Bay Area

Keep the following information in mind while searching for Dulles Intl to San Francisco Bay Area flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$250
(Alaska Airlines)

One-way from

$117
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$496
Provider with most accurate pricing for Washington, D.C. (WAS)-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-San Francisco flights.
Search Deals
From Washington, D.C. Dulles Intl to San Francisco Bay Area
Search Deals
One-way flight from Washington, D.C. Dulles Intl to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to San Francisco Bay Area 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 December 18, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to San Francisco Bay Area that are best for you.

Fly from

Dulles Intl

Fly to

San Francisco Bay Area

Route

Depart

Return

Price

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Wed 1/14

2:24 pm-8:56 pm

1 stop9h 32m

San Jose

Wed 1/21

8:40 am-9:11 pm

1 stop9h 31m

$251

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Wed 1/7

4:30 pm-9:55 pm

1 stop8h 25m

San Jose

Wed 1/28

9:55 am-9:55 pm

2 stops9h 00m

$256

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Sat 1/10

7:05 am-12:24 pm

1 stop8h 19m

San Jose

Tue 1/13

1:20 pm-11:48 pm

1 stop7h 28m

$257

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Wed 1/14

6:00 am-1:34 pm

2 stops10h 34m

San Jose

Wed 1/21

2:06 pm-12:24 am

1 stop7h 18m

$262

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Fri 1/9

5:26 pm-10:35 pm

1 stop8h 09m

San Jose

Sat 1/10

7:00 am-5:04 pm

1 stop7h 04m

$273

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Tue 2/3

5:26 pm-10:35 pm

1 stop8h 09m

San Jose

Sun 2/8

12:46 pm-5:04 pm

1 stop25h 18m

$273

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Wed 1/21

5:26 pm-10:35 pm

1 stop8h 09m

San Jose

Sun 1/25

8:04 pm-5:04 pm

1 stop18h 00m

$273

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Wed 2/4

5:26 pm-10:35 pm

1 stop8h 09m

San Jose

Sun 2/8

8:04 pm-5:04 pm

1 stop18h 00m

$273

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Thu 1/8

4:30 pm-9:55 pm

1 stop8h 25m

San Jose

Thu 1/15

6:45 am-5:00 pm

1 stop7h 15m

$277

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Sat 1/10

5:27 pm-11:25 pm

1 stop8h 58m

San Francisco

Tue 1/20

2:05 pm-12:24 am

1 stop7h 19m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 60 results
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Best time to book a flight from Dulles Intl to San Francisco Bay Area

Have a flexible travel schedule? Discover the best time to fly to San Francisco Bay Area 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 Bay Area

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Francisco Bay Area (average of $188). Flying from Washington, D.C. Dulles Intl Airport to San Francisco Bay Area in June is currently the most expensive (average of $275). 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 XIH?

Find hourly flight availability from Dulles Intl to San Francisco Bay Area. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 10% on flights from Washington, D.C. Dulles Intl Airport to San Francisco Bay Area by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to San Francisco Bay Area. Price data was last updated on December 16, 2024.

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

Reviews of airlines servicing San Francisco Bay Area

Get insights into the airlines that provide service to San Francisco Bay Area. 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 Bay Area. Reviews last updated December 18, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to San Francisco Bay Area, such as Alaska Airlines, Delta, and Hawaiian Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,478 reviews

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

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
11,478 reviews
Alaska Airlines
8.0
Very good
11,478 reviews

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

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.
Delta
7.9
Good
8,009 reviews
Alaska Airlines
8.0
Very good
11,478 reviews

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

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.
Hawaiian Airlines
7.8
Good
2,820 reviews
Alaska Airlines
8.0
Very good
11,478 reviews

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

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.
United Airlines
7.4
Good
9,093 reviews
Alaska Airlines
8.0
Very good
11,478 reviews

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

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.
Frontier
5.8
Fair
3,081 reviews
Alaska Airlines
8.0
Very good
11,478 reviews

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

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.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to San Francisco Bay Area. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Airlines like United Airlines, Southwest, and Delta fly from Washington, D.C. Dulles Intl Airport to San Francisco Bay Area in about 8h 19m. The time it takes to get you to your destination can typically vary by up to 1h 13m. Washington, D.C. Dulles Intl Airport and San Francisco Bay Area are separated by a distance of 2393 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 to fly from Washington, D.C. Dulles Intl Airport to San Francisco Bay Area one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $89. Southwest flights start at $92 while deals on Alaska Airlines start at $108 one-way.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to San Francisco Bay Area?

    When deciding which route to take from Washington, D.C. Dulles Intl Airport to San Francisco Bay Area consider Washington, D.C. Dulles Intl - San Francisco, Washington, D.C. Dulles Intl - San Jose or Washington, D.C. Dulles Intl - Oakland as they are the most popular.

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

    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 Bay Area on time: ITA Airways (100%), Egyptair (87%), Austrian Airlines (82%).

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

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to San Francisco Bay Area is $158. On average you can expect to pay $1,135. The most popular route, (Washington, D.C. Dulles Intl - San Francisco), can usually be booked for $166.

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

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

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

    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 Bay Area.

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

    Yes. Cheapflights offers flight deals from Dulles Intl to San Francisco Bay Area 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 Bay Area?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Francisco Bay Area (average of $188). Flying from Washington, D.C. Dulles Intl Airport to San Francisco Bay Area in June is currently the most expensive (average of $275). 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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Alternative routes for Dulles Intl to San Francisco Bay Area

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Dulles Intl to San Francisco Bay Area

Discover the top 7 airlines that operate flights from Dulles Intl to San Francisco Bay Area. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$138Average$269FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$184Average$436FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$224Average$424FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$242Average$487FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$266Average$453FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$267Average$397FlexibilityNo cancel feeOn-time85%
DeltaCheapest$276Average$350FlexibilityNo cancel feeOn-timeN/A

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