$159 Cheap United flights Washington (DCA) to San Francisco (SFO)

View $159 flight on Sat, Sep 20, 2025Opens in a new window

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$159 Cheap United flights Washington (DCA) to San Francisco (SFO)

Prices were available within the past 7 days and start at $159 for one-way flights and $277 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Oct 21 - Tue, Oct 28
DCA
Washington
SFO
San Francisco
$277 Roundtrip, just found
$277
Roundtrip
just found
Select United flight, departing Tue, Oct 21 from Washington to San Francisco, returning Tue, Oct 28, priced at $277 just found
United
Tue, Oct 21 - Wed, Oct 29
DCA
Washington
SFO
San Francisco
$295 Roundtrip, found 9 hours ago
$295
Roundtrip
found 9 hours ago
Select United flight, departing Tue, Oct 21 from Washington to San Francisco, returning Wed, Oct 29, priced at $295 found 9 hours ago
United
Tue, Oct 21 - Tue, Oct 28
DCA
Washington
SFO
San Francisco
$304 Roundtrip, just found
$304
Roundtrip
just found
Select United flight, departing Tue, Oct 21 from Washington to San Francisco, returning Tue, Oct 28, priced at $304 just found
United
Sat, Sep 20 - Mon, Sep 22
DCA
Washington
SFO
San Francisco
$305 Roundtrip, just found
$305
Roundtrip
just found
Select United flight, departing Sat, Sep 20 from Washington to San Francisco, returning Mon, Sep 22, priced at $305 just found
United
Wed, Nov 19 - Thu, Nov 20
DCA
Washington
SFO
San Francisco
$307 Roundtrip, just found
$307
Roundtrip
just found
Select United flight, departing Wed, Nov 19 from Washington to San Francisco, returning Thu, Nov 20, priced at $307 just found
United
Wed, Sep 24 - Thu, Sep 25
DCA
Washington
SFO
San Francisco
$312 Roundtrip, just found
$312
Roundtrip
just found
Select United flight, departing Wed, Sep 24 from Washington to San Francisco, returning Thu, Sep 25, priced at $312 just found
United
Tue, Oct 21 - Tue, Oct 28
DCA
Washington
SFO
San Francisco
$314 Roundtrip, just found
$314
Roundtrip
just found
Select United flight, departing Tue, Oct 21 from Washington to San Francisco, returning Tue, Oct 28, priced at $314 just found
United
Sat, Nov 15 - Sun, Nov 16
DCA
Washington
SFO
San Francisco
$317 Roundtrip, just found
$317
Roundtrip
just found
Select United flight, departing Sat, Nov 15 from Washington to San Francisco, returning Sun, Nov 16, priced at $317 just found
Flights from Washington (DCA) to San Francisco (SFO)
Origin airport
Ronald Reagan Washington National
Destination airport
San Francisco Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United
Popular airline
Alaska Airlines
Distance
2436 mi
Average flight time
2 hours 51 mins

Frequently asked questions

How much is a United Airlines flight from Ronald Reagan Washington National Airport (DCA) to San Francisco Intl. Airport (SFO)?
Use the "Price (lowest to highest)" filter on Expedia to look for cheap United Airlines round-trip flights from $277 from DCA to SFO. Affordable one-way options from $159 are available too.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from DCA to SFO with United Airlines?
Look for one-way or return flights to San Francisco in February or April. You could find an affordable fare with United Airlines during these quieter months.
What is the cheapest time to book flights from Ronald Reagan Washington National Airport (DCA) to San Francisco Intl. Airport (SFO) with United Airlines?
To find cheap United Airlines fares from Ronald Reagan Washington National Airport (DCA) to San Francisco Intl. Airport (SFO), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the cost. Sunday is usually the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Ronald Reagan Washington National Airport (DCA) to San Francisco Intl. Airport (SFO)?
Yes, you can fly from Ronald Reagan Washington National Airport (DCA) to San Francisco Intl. Airport (SFO) on one of United Airlines's 7 direct weekly flights. Apply Expedia's "Nonstop" and "Airline" filters to find the United Airlines flight that'll get you to SFO at your preferred time.
How long does it take to fly from DCA to SFO with United Airlines?
It takes approximately 6h 15m to travel nonstop from Ronald Reagan Washington National Airport (DCA) to San Francisco Intl. Airport (SFO) with United Airlines.
What is the earliest United Airlines flight from DCA to SFO?
Setting off from DCA at 5:59PM UTC-5, the earliest United Airlines flight to SFO arrives at 9:14PM UTC-8. Traveling early means you'll be less likely to experience cancellations.* Don't like early starts? The last United Airlines flight from DCA to SFO departs at 5:59PM UTC-5 and touches down at 9:14PM UTC-8.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in San Francisco?
United Airlines flights from Ronald Reagan Washington National Airport (DCA) to San Francisco come in to San Francisco Intl. Airport (SFO). This is the main gateway to this destination.
Why fly with United Airlines from DCA to SFO?
A rewarding loyalty program and the ability to collect points through United Mileage Plus are the start of the reasons to jet off from DCA to SFO with United Airlines. Plus, when you join Expedia's free One Key™ program, you can receive OneKeyCash™* alongside any airline loyalty program earnings. It's yours to spend on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from Ronald Reagan Washington National Airport (DCA) to San Francisco Intl. Airport (SFO)?
Chances are you'll catch a Boeing 737 MAX 8 for your United Airlines flight from Ronald Reagan Washington National Airport (DCA) to San Francisco Intl. Airport (SFO). However, you could end up on an alternative aircraft if there are operational changes.
Can I change or cancel my United Airlines flight from Ronald Reagan Washington National Airport (DCA) to San Francisco Intl. Airport (SFO)?
Changes are typically free within 24 hours of making your booking, but your airline may charge a fee after that. For further details about altering your reservation, check out your "Trips," select your flight and click on "Manage Booking." If you want the flexibility to adjust your plans without extra charges, apply the "Changes included" and "No cancel fee" filters when planning your next adventure.

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