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.
$123+ 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 5/16. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SFO
may. 3 — may. 101
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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 February or September, booked 78 days in advance, depart on a Thursday or Friday and return on a Wednesday
Cheap 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 abril 28, 2025.
Most accurate provider | Mytrip 3 stars |
|---|---|
Most trusted provider | Mytrip 3 stars |
Round-trip from | $277 (Delta) |
One-way from | $123 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $429 |
Good round-trip deal | $361 or less |
Good one-way deal | $189 or less |
Find flight deals from Dulles Intl to San Francisco
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 abril 28, 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 abril 28, 2025.
This Orbitz deal was found by Cheapflights users on 4/28. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/177:45 amIAD - SFO
1 stop8h 18mMultiple Airlines
lun. 6/29:41 pmSFO - IAD
Nonstop5h 14mMultiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$273
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/286:25 amIAD - SFO
1 stop8h 05mDelta
sáb. 5/315:50 amSFO - IAD
1 stop8h 47mDelta
Deal found 4/28![Delta logo]()
$277
This CheapOair deal was found by Cheapflights users on 4/28. 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.
vie. 5/231:17 pmIAD - SFO
1 stop24h 11mFrontier
mar. 5/2711:38 pmSFO - IAD
1 stop9h 24mFrontier
Deal found 4/28![Frontier logo]()
$279
This Sun Country Air deal was found by Cheapflights users on 4/28. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/1112:40 pmIAD - SFO
1 stop7h 34mSun Country Air
dom. 6/1511:59 pmSFO - IAD
1 stop8h 44mSun Country Air
Deal found 4/28![Sun Country Air logo]()
$285
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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.
dom. 5/259:00 amIAD - SFO
1 stop9h 51mAlaska Airlines
mar. 6/37:24 amSFO - IAD
1 stop8h 01mAlaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$286
This Hawaiian Airlines deal was found by Cheapflights users on 4/28. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/105:14 pmIAD - SFO
1 stop9h 39mHawaiian Airlines
sáb. 7/2611:10 amSFO - IAD
Nonstop5h 09mHawaiian Airlines
Deal found 4/28![Hawaiian Airlines logo]()
$287
This United Airlines deal was found by Cheapflights users on 4/27. 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.
mar. 5/2010:05 pmIAD - SFO
Nonstop6h 07mUnited Airlines
vie. 5/234:31 pmSFO - IAD
Nonstop5h 14mUnited Airlines
Deal found 4/27![United Airlines logo]()
$293
This Southwest deal was found by Cheapflights users on 4/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/282:50 pmIAD - SFO
2 stops11h 05mSouthwest
mar. 6/36:00 amSFO - IAD
1 stop8h 55mSouthwest
Deal found 4/28![Southwest logo]()
$312
This American Airlines deal was found by Cheapflights users on 4/27. 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.
vie. 7/49:10 amIAD - SFO
1 stop9h 04mAmerican Airlines
vie. 7/117:00 amSFO - IAD
1 stop7h 38mAmerican Airlines
Deal found 4/27![American Airlines logo]()
$377
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 abril 28, 2025.
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
Dulles Intl
Fly to
San Francisco
Route
Depart
Return
Price
Washington, D.C.San Francisco
IAD - SFO
IADSFO
Washington, D.C. Dulles Intl
sáb. 5/17
7:45 am-1:03 pm
1 stop8h 18m
San Francisco
lun. 6/2
9:41 pm-5:55 am
Nonstop5h 14m
$273
Washington, D.C.San Francisco
IAD - SFO
IADSFO
Washington, D.C. Dulles Intl
mié. 5/28
6:25 am-11:30 am
1 stop8h 05m
San Francisco
sáb. 5/31
5:50 am-5:37 pm
1 stop8h 47m
$277
Washington, D.C.San Francisco
IAD - SFO
IADSFO
Washington, D.C. Dulles Intl
vie. 5/23
1:17 pm-10:28 am
1 stop24h 11m
San Francisco
mar. 5/27
11:38 pm-12:02 pm
1 stop9h 24m
$279
Washington, D.C.San Francisco
IAD - SFO
IADSFO
Washington, D.C. Dulles Intl
mié. 6/11
12:40 pm-5:14 pm
1 stop7h 34m
San Francisco
dom. 6/15
11:59 pm-11:43 am
1 stop8h 44m
$285
Washington, D.C.San Francisco
IAD - SFO
IADSFO
Washington, D.C. Dulles Intl
dom. 5/25
9:00 am-3:51 pm
1 stop9h 51m
San Francisco
mar. 6/3
7:24 am-6:25 pm
1 stop8h 01m
$286
Washington, D.C.San Francisco
IAD - SFO
IADSFO
Washington, D.C. Dulles Intl
mar. 6/10
5:14 pm-11:53 pm
1 stop9h 39m
San Francisco
sáb. 7/26
11:10 am-7:19 pm
Nonstop5h 09m
$287
Washington, D.C.San Francisco
IAD - SFO
IADSFO
Washington, D.C. Dulles Intl
mar. 5/20
10:05 pm-1:12 am
Nonstop6h 07m
San Francisco
vie. 5/23
4:31 pm-12:45 am
Nonstop5h 14m
$293
Washington, D.C.San Francisco
IAD - SFO
IADSFO
Washington, D.C. Dulles Intl
mié. 5/28
2:50 pm-10:55 pm
2 stops11h 05m
San Francisco
mar. 6/3
6:00 am-5:55 pm
1 stop8h 55m
$312
Washington, D.C.San Francisco
IAD - SFO
IADSFO
Washington, D.C. Dulles Intl
vie. 7/4
9:10 am-3:14 pm
1 stop9h 04m
San Francisco
vie. 7/11
7:00 am-5:38 pm
1 stop7h 38m
$377
Washington, D.C.San Francisco
IAD - SFO
IADSFO
Washington, D.C. Dulles Intl
mar. 5/27
2:05 pm-10:28 am
1 stop23h 23m
$125
Showing 1-10 of 18 results
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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-San Francisco flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Washington, D.C. Dulles Intl Airport-San Francisco flight deals on Cheapflights vs. Mytrip >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 Mytrip the most. Mytrip 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.
The best insider tips for Washington, D.C. Dulles Intl Airport to San Francisco flights
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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 Airlines
![Alaska Airlines]()
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.
Airports
Our travel experts
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?
Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to San Francisco. Price data was last updated on April 25, 2025.
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 $393). 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 abril 28, 2025.
It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to San Francisco in the evening. 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?
Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to San Francisco. Price data was last updated on March 30, 2025.
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. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Washington, D.C. Dulles Intl Airport to San Francisco
Explore weekly flight availability from Dulles Intl to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated abril 28, 2025.
The most flights from IAD to SFO are scheduled on a Monday (43 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (32 on average).
Rainfall in San Francisco by month
Plan your trip to San Francisco by taking into account the average rainfall totals by month.
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.
Temperature in San Francisco by month
Plan your trip to San Francisco by taking into account the average temperature totals by month.
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).
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 abril 28, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Washington, D.C. to San Francisco to help guide your decision. 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.
Overall
8.0
Comfort
7.9
Crew
8.5
Boarding
8.2
Entertainment
7.1
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Apr 2025
LAS - STS
Overall
8.0
Comfort
7.9
Crew
8.5
Boarding
8.2
Entertainment
7.1
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Apr 2025
LAS - STS
Overall
8.0
Comfort
7.9
Crew
8.5
Boarding
8.2
Entertainment
7.1
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Apr 2025
LAS - STS
Overall
8.0
Comfort
7.9
Crew
8.5
Boarding
8.2
Entertainment
7.1
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Apr 2025
LAS - STS
Overall
8.0
Comfort
7.9
Crew
8.5
Boarding
8.2
Entertainment
7.1
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Apr 2025
LAS - STS
Overall
8.0
Comfort
7.9
Crew
8.5
Boarding
8.2
Entertainment
7.1
Food
7.1
Reviews
1 / 20
4.0
OkayAnonymous,Apr 2025
LAS - STS
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.
Traveling to a place near Washington, D.C. Dulles Intl Airport?
Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locationsRoseville
Mountain View
Santa Cruz
Turlock
Livermore
South San Francisco
Fairfield
Manteca
Richmond
Watsonville
Hollister
Milpitas
Antioch
Sausalito
Vallejo
Newark
Hayward
Alameda
Sunnyvale
Campbell
Browse thousands of different options on Cheapflights for your next trip
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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.
Top 9 airlines flying from Dulles Intl to San Francisco
Discover the top 9 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 abril 28, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$86 | Average$229 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$130 | Average$232 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$208 | Average$370 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$245 | Average$408 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$256 | Average$370 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$267 | Average$359 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$297 | Average$496 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$331 | Average$536 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$341 | Average$466 | FlexibilityNo cancel fee | On-time63% |