Find Cheap Flights from Seattle to San Francisco (SEA - SFO)

Flights overview

Useful information for finding cheap flights from Seattle to San Francisco and booking your next trip

Cheapest round-trip flights	$180	Frontier 1 stop 11 hr Thu, Jun 4 — Sun, Jun 7	The cheapest round-trip flight from Seattle to San Francisco is currently $180
Cheapest one-way flight	$79	United Nonstop 3 hr Wed, May 27	The cheapest one-way flight from Seattle to San Francisco is currently $79
Cheapest nonstop flights	$221	United Nonstop 3 hr Thu, Jun 4 — Mon, Jun 8	The cheapest nonstop round-trip flight from Seattle to San Francisco is currently $221
Last-minute weekend getaway	$256	Frontier 1 stop 29 hr Fri, May 8 — Mon, May 11	The cheapest last-minute weekend getaway from Seattle to San Francisco is currently $256
Cheapest business class flights	$408	Frontier 1 stop 11 hr Thu, Jun 4 — Mon, Jun 8	The cheapest business class round-trip flight from Seattle to San Francisco is currently $408

Fastest flight	2 hr 10 min	The fastest nonstop flight from Seattle to San Francisco takes 2 hr 10 min
Nonstop flights	Every day	There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from Seattle to San Francisco is typically January. The most expensive month to fly is typically July.

January Cheapest	Typical prices: $95–355
July Most expensive	Typical prices: $175–275

Popular airlines from Seattle to San Francisco

Alaska

Nonstop

from $257

Typical price: $145–380

54 weekly nonstop flights

SEA - SFO Every day

294 weekly connecting flights

SEA - SFO Every day
United

Nonstop

from $221

Typical price: $135–380

48 weekly nonstop flights

SEA - SFO Every day

84 weekly connecting flights

SEA - SFO Every day
Delta

Nonstop

from $257

Typical price: $135–415

35 weekly nonstop flights

SEA - SFO Every day

110 weekly connecting flights

SEA - SFO Every day
Southwest

from $241

Typical price: $210–475

116 weekly connecting flights

SEA - SFO Every day
American

from $337

Typical price: $235–510

40 weekly connecting flights

SEA - SFO Every day
Frontier

from $180

Typical price: $175–465

23 weekly connecting flights

SEA - SFO Every day

Popular airports near Seattle

Seattle-Tacoma International Airport (SEA)

Seattle United States 18 min 11 mi
Portland International Airport (PDX)

Portland United States 2 hr 44 min 140 mi
Paine Field (PAE)

Everett United States 31 min 21 mi
King County International Airport - Boeing Field (BFI)

Seattle United States 11 min 5 mi

Popular airports near San Francisco

San Francisco International Airport (SFO)

San Francisco United States 19 min 11 mi
Oakland San Francisco Bay Airport (OAK)

Oakland United States 27 min 11 mi
Sacramento International Airport (SMF)

Sacramento United States 1 hr 34 min 78 mi
San Jose Mineta International Airport (SJC)

San Jose United States 51 min 39 mi

Frequently asked questions about flying from Seattle to San Francisco

The cheapest flights from Seattle to San Francisco are usually in January. Typical ticket prices in January range from $95 to $355.

The cheapest round-trip flight from Seattle to San Francisco recently found on Google Flights was with Frontier from $180. The cheapest one-way flight was with United from $79.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Alaska flight from Seattle to San Francisco is $257, flying from Jul 9 to Jul 12.
The cheapest United flight from Seattle to San Francisco is $221, flying from Jun 4 to Jun 8.
The cheapest Delta flight from Seattle to San Francisco is $257, flying from Jul 9 to Jul 12.
The cheapest Southwest flight from Seattle to San Francisco is $241, flying from Jun 4 to Jun 8.
The cheapest American flight from Seattle to San Francisco is $337, flying from Jul 9 to Jul 12.
The cheapest Frontier flight from Seattle to San Francisco is $180, flying from Jun 4 to Jun 7.

The cheapest round-trip flight from Seattle to San Francisco starts at $180 from Thu, Jun 4 to Sun, Jun 7. The cheapest one-way flight starts at $79 and departs on Wed, May 27.

2 hr 10 min is the shortest flight time from Seattle to San Francisco.

Apr–Dec is when most people visit San Francisco, with crowds peaking in summer. Although average temperatures are higher then, mornings and evenings often have damp, chilly fog. In summer, street fairs and cultural institutions offer free outdoor entertainment. Winter visitors will find the opera and ballet seasons in full swing. Major annual events include Chinese New Year (Feb), Bay to Breakers footrace (May), San Francisco Pride parade and festival (Jun), and San Francisco Fleet Week (Oct).

It's easy to use Google Flights to find the cheapest days to fly from Seattle to San Francisco.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

What counts as the best airline for your flights from Seattle to San Francisco really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Seattle to San Francisco.

In terms of nonstop flights, Alaska is the most popular. Alaska offers 54 nonstop flights and 294 connecting flights per week. Alaska flies from Seattle-Tacoma International Airport (SEA) to San Francisco International Airport (SFO) .

Other popular airlines flying from Seattle to San Francisco are:

United offers 48 nonstop flights and 84 connecting flights per week. United flies from Seattle-Tacoma International Airport (SEA) to San Francisco International Airport (SFO) .
Delta offers 35 nonstop flights and 110 connecting flights per week. Delta flies from Seattle-Tacoma International Airport (SEA) to San Francisco International Airport (SFO) .
Southwest offers 116 connecting flights per week. Southwest flies from Seattle-Tacoma International Airport (SEA) to San Francisco International Airport (SFO) .
American offers 40 connecting flights per week. American flies from Seattle-Tacoma International Airport (SEA) to San Francisco International Airport (SFO) .
Frontier offers 23 connecting flights per week. Frontier flies from Seattle-Tacoma International Airport (SEA) to San Francisco International Airport (SFO) .

The number of connecting flights refers to distinct flights with at least one stop between Seattle and San Francisco.

The cheapest round-trip flight from Seattle to San Francisco recently found on Google Flights was with Frontier from $180. The cheapest one-way flight was with United from $79.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Alaska flight from Seattle to San Francisco is $257, flying from Jul 9 to Jul 12.
The cheapest United flight from Seattle to San Francisco is $221, flying from Jun 4 to Jun 8.
The cheapest Delta flight from Seattle to San Francisco is $257, flying from Jul 9 to Jul 12.
The cheapest Southwest flight from Seattle to San Francisco is $241, flying from Jun 4 to Jun 8.
The cheapest American flight from Seattle to San Francisco is $337, flying from Jul 9 to Jul 12.
The cheapest Frontier flight from Seattle to San Francisco is $180, flying from Jun 4 to Jun 7.

Alaska, United and Delta fly direct from Seattle to San Francisco.

There are 54 Alaska direct flights from Seattle to San Francisco per week. Flights are available every day.
There are 48 United direct flights from Seattle to San Francisco per week. Flights are available every day.
There are 35 Delta direct flights from Seattle to San Francisco per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

The cheapest last-minute deal between Seattle and San Francisco at price $256 is offered by Frontier from Fri, May 8 to Mon, May 11.

Alaska, United and Delta fly direct from Seattle to San Francisco.

There are 54 Alaska direct flights from Seattle to San Francisco per week. Flights are available every day.
There are 48 United direct flights from Seattle to San Francisco per week. Flights are available every day.
There are 35 Delta direct flights from Seattle to San Francisco per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

There are direct flights from Seattle to San Francisco on a daily basis.

The cheapest direct (nonstop) round-trip flights between Seattle and San Francisco start at $221 from Thu, Jun 4 to Mon, Jun 8 with United.

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Seattle to San Francisco, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.

The cheapest business class round-trip flights between Seattle and San Francisco start at $408 from Thu, Jun 4 to Mon, Jun 8 with Frontier.

The cheapest economy class round-trip flights between Seattle and San Francisco start at $180 from Thu, Jun 4 to Sun, Jun 7.

To book business class trips from Seattle to San Francisco, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.

The best last-minute getaway deal for the next weekend between Seattle and San Francisco starts at $256 from Fri, May 8 to Mon, May 11 with Frontier.

The cheapest last-minute deal between Seattle and San Francisco at price $256 is offered by Frontier from Fri, May 8 to Mon, May 11.

To find last-minute flight deals from Seattle to San Francisco, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.