Frontier AirlinesDepart05:30
Wed, Jan 13BWI → SFO
10h 11m · 3 stops
$112one way, per person
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- Cheapest fare
- $112
- Cheapest month
- January
- Direct flights
- Yes
- Flight time
- 6h 07m
Frontier Airlines · Wed, Jan 13
from $112
Alaska Airlines
3,920 km
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Cheapest month to fly from Washington to San Francisco
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in January 2027
The lowest fares we've seen for each day, cheapest first.
Frontier AirlinesFrontier AirlinesDepart12:38
Tue, Jan 12BWI → SFO
9h 53m · 3 stops
$113one way, per person
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About flights from Washington to San Francisco
Washington (WAS) and San Francisco (SFO) are about 3,920 km apart. Direct flights take around 6h 07m, and recent direct fares were with Alaska Airlines. Over the next few months, one-way fares start from $112, and January 2027 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from Washington to San Francisco?
The cheapest one-way fare we've seen recently is $112 with Frontier Airlines, departing Wednesday, January 13, 2027. Over the coming months, the lowest fare in each month ranges from $112 to $210.
What is the cheapest month to fly from Washington to San Francisco?
January 2027 currently has the lowest fares, from $112 one way.
Are there direct flights from Washington to San Francisco?
Yes. Recent direct fares were with Alaska Airlines.
How long is the flight from Washington to San Francisco?
A direct flight takes about 6h 07m. Washington and San Francisco are around 3,920 km apart.
Which airlines fly from Washington to San Francisco?
Recent fares on this route were with Alaska Airlines and Frontier Airlines.
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