$289 Cheap United flights Washington (IAD) to San Francisco (SFO)

View $289 flight on Thu, Aug 20, 2026Opens in a new window

$289 Cheap United flights Washington (IAD) to San Francisco (SFO)

Prices were available within the past 7 days and start at $289 for one-way flights and $427 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Aug 20 - Mon, Aug 24
IAD
Washington
SFO
San Francisco
$427 Roundtrip, found 8 hours ago
$427
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Aug 20 from Washington to San Francisco, returning Mon, Aug 24, priced at $427 found 8 hours ago

Alternative airports near San Francisco

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

Select flight to San Francisco Intl. SFO. Cheapest and Closest option available. Average driving time to city center is 19 minutes. Flights from $430
SFO
San Francisco Intl.
CheapestClosest
Average driving time to city center19 min
Flights from $430

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

May is typically the cheapest month to fly

From $211 - $390 per traveler.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
San Francisco Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, United
Popular airline
Frontier Airlines
Distance
3862 km
Average flight time
3 hours 39 mins

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