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Cheap flights from Seattle to San Francisco

SEA — SFO
23 Aug — 30 Aug1
1 adult

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to San Francisco are usually found in January or September, booked 57 days in advance, depart on a Friday or Wednesday and return on a Tuesday

Cheap flight deals from Seattle to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) 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 18 August 2025.

Popular in

December

Cheapest in

January

Average price

₹ 20,740

Good round-trip deal

₹ 16,053 or less

Good one-way deal

₹ 15,165 or less
Highest demand for flights based on searches. 4% potential increase in price (₹ 82,198 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (₹ 28,764 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to San Francisco.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to San Francisco.
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Best time to book a flight from Seattle to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Seattle with our price prediction graph.
Estimated return 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 Seattle to San Francisco

How far ahead should I book a flight from Seattle to San Francisco?

Use this chart to determine the optimal time to book a return flight from Seattle to San Francisco. Price data was last updated on 8 August 2025.

Booking 57 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle 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 Seattle to San Francisco?

Currently, October is the cheapest month in which you can book a flight from Seattle to San Francisco (average of ₹ 991). Flying from Seattle to San Francisco in August is currently the most expensive (average of ₹ 1,223). 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 SEA to SFO?

Find hourly flight availability from Seattle 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 18 August 2025.

It’s typically best to fly out from Seattle to San Francisco in the evening. Doing so could potentially save you 75% on the flight price compared to flying in the morning, which is usually more expensive.

Weekly flight availability from Seattle to San Francisco

Explore weekly flight availability from Seattle 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 18 August 2025.

The most flights from SEA to SFO are scheduled on a Monday (116 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (12 on average).

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 18 August 2025.
Read reviews from past customers who have flown with Alaska Airlines from Seattle to San Francisco. 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
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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

  • How popular is this Seattle to San Francisco flight route?

    This flight path from Seattle/Tacoma Intl to San Francisco was viewed by 33 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What is the cheapest airline to fly from Seattle to San Francisco round-trip?

    Our cheapest airline available from Seattle to San Francisco is Alaska Airlines. Our recent data shows that you can find tickets from as low as ₹ 12,669 on this airline. This flight start at 37% lower than the current average price 3 months from now.

  • What are the most reliable airlines from Seattle to San Francisco?

    No one likes to see their flight delayed. When booking a flight from Seattle to San Francisco consider choosing China Southern(97%), China Eastern(92%) or KLM(92%), as they are the most reliable in getting you off to your destination on time.

  • Can I find deals for flights from Seattle to San Francisco that include hotel bookings?

    Yes. In addition to deals on Seattle to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Seattle to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to San Francisco.

  • Can I find deals for business class flights from Seattle to San Francisco?

    Yes. Cheapflights offers flight deals from Seattle to San Francisco 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 Seattle to San Francisco?

    Currently, October is the cheapest month in which you can book a flight from Seattle to San Francisco (average of ₹ 991). Flying from Seattle to San Francisco in August is currently the most expensive (average of ₹ 1,223). 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

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
San Bruno
Half Moon Bay
Mountain View
Daly City
Fairfield
Burlingame
Milpitas

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Seattle to San Francisco

Discover the top airline that operate flights from Seattle 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 454,620 searches. Data last updated 18 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest₹ 12,669Average₹ 22,018FlexibilityNo cancel feeOn-time75%
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to San Francisco?

When you search for this flight from Seattle to San Francisco, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Seattle to San Francisco?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Seattle to San Francisco for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Seattle to San Francisco with no change fees?

Yes, we can. To see specific flights from Seattle to San Francisco with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Seattle to San Francisco become cheaper?

Yes, Cheapflights offers price alerts on Seattle to San Francisco flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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