To Seattle

Cheap Flights from San Francisco to Seattle

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San Francisco

RatePunk searches hundreds of travel sites at once for deals on flights to Seattle

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from San Francisco to Seattle

Explore current cheapest deals departing from San Francisco to Seattle

Round trip

Sort by: Cheapest

September 8 - September 22

Cheapest

SFO - Seattle

$105

$137

Round trip

July 8 - July 29

SFO - Seattle

$114

$138

Round trip

July 14 - July 15

SFO - Seattle

$136

$138

Round trip

July 8 - July 15

SFO - Seattle

$133

$138

Round trip

July 7 - July 14

Earliest

SFO - Seattle

$133

$138

Round trip

July 8 - July 14

SFO - Seattle

$133

$138

Round trip

July 14 - July 22

Best

SFO - Everett

$178

$138

Round trip

August 12 - August 18

SFO - Everett

$168

$138

Round trip

August 19 - August 26

SFO - Everett

$171

$138

Round trip

August 5 - August 12

SFO - Seattle

$124

$138

Round trip

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Route Intelligence — 486,190 Searches this Week

Insights for flights from San Francisco to Seattle

For those seeking cheap flights from San Francisco to Seattle, November stands out as the most affordable month, with a median fare of just $89. Other budget-friendly options include October and December, both offering median fares of $129. Planning your trip during these months can lead to significant savings on your journey.

Right now, fares for flights from San Francisco to Seattle typically range from $129–$429, with a median price of $205. Current fares are significantly above the typical level, and right now, 0% of recent fares are classified as a good price. New deals appear almost daily, so setting up a price alert can help you track fare changes.

When flying from San Francisco to Seattle, almost all itineraries are non-stop, with direct flights from San Francisco to Seattle accounting for 72.6% of recent fares. For the remaining itineraries that include connections, the typical number of stopovers is 2.

A typical journey from San Francisco to Seattle takes about 4h 27m, including any connections. This duration reflects the overall travel time you can expect for this route, encompassing both direct and connecting flights.

The distance between San Francisco and Seattle is 1093 km, classifying this as a short-haul route. This relatively short distance means quicker travel times and more frequent flight options.

How much is a round trip from San Francisco to Seattle

Regular price: $86 - $192

Prices are currently within the regular range.

The regular price range for flights from San Francisco to Seattle is $86 to $192. The current lowest deal is $137 with Alaska Airlines, Inc. for travel from Sep 8-Sep 22.

now $137

Low $86

High $192

The cheapest time to fly from San Francisco to Seattle

The cheapest month to fly from SFO to SEA is November, with a median price of $89. The most expensive month is July, with a median price of $370. Prices are generally lower from January to December.

November

Cheapest

Flights from $89

July

Most Expensive

Flights from $370

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from San Francisco to Seattle

Alaska Airlines, Inc.

Last-minute flights going from San Francisco to Seattle

Fri, Jun 19

⌛ Last-Minute

SFO - Seattle

San Francisco (SFO) - Seattle (SEA)

Alaska Airlines, Inc.

$277

$245

One-way

Mon, Jun 22

⌛ Last-Minute

SFO - Seattle

San Francisco (SFO) - Seattle (SEA)

Alaska Airlines, Inc.

$338

$280

One-way

Tue, Jul 7

⌛ Last-Minute

SFO - Seattle

San Francisco (SFO) - Seattle (SEA)

Alaska Airlines, Inc.

$133

$138

One-way

Tue, Jul 7

⌛ Last-Minute

SFO - Seattle

San Francisco (SFO) - Seattle (SEA)

United Airlines

$118

$157

One-way

Tue, Jul 7

⌛ Last-Minute

SFO - Seattle

San Francisco (SFO) - Seattle (SEA)

Alaska Airlines, Inc.

$130

$157

One-way

Tue, Jul 7

⌛ Last-Minute

SFO - Seattle

San Francisco (SFO) - Seattle (SEA)

$140

$157

One-way

Biggest price drops on these dates for flights from San Francisco to Seattle

4 nights

Oct 16 - Oct 20

$346 → $191

45%

5 nights

Aug 12 - Aug 17

$309 → $183

41%

4 nights

Aug 13 - Aug 17

$318 → $236

26%

4 nights

Aug 8 - Aug 12

$320 → $238

26%

Popular Airports to fly from San Francisco to Seattle

San Francisco - Seattle route insights

💸 Price insights

Recent fares are above the typical level

Recent fares from San Francisco to Seattle are above the typical level at $137.

📅 Best time to fly

Fly in November for the best prices

Historically, November is the cheapest month to fly, with a median price of $89.

⏱️ Flight duration

Short-haul flights, 4h 27m median duration

Flights from San Francisco to Seattle are short-haul, typically lasting 4 hours and 27 minutes.

✈️ Airlines & availability

Alaska Airlines, Inc. offers direct flights

Alaska Airlines, Inc. offers direct flights on this route, with deals appearing frequently.

🏆 Airline highlight

Alaska Airlines, Inc. has a deal for $137

A recent deal with Alaska Airlines, Inc. was found for $137, departing September 8.

🎯 Booking tip

Deals appear frequently on this route

Deals for flights from San Francisco to Seattle appear frequently, with over 1 deal per day.

San Francisco main airports to depart from

San Francisco International (SFO)

Cheapest

San Francisco International is a good option for flights from San Francisco to Seattle.

📍 ~20 km from city center (reachable by car or train)

💸 Flights from ~$137

Seattle main airports to arrive at

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International Airport is a primary arrival option for flights from San Francisco to Seattle.

📍 ~20 km from Seattle (reachable by car, train, and bus)

💸 Flights from ~$137

Boeing Field (BFI)

Boeing Field offers an alternative arrival point for travelers flying from San Francisco to Seattle.

📍 ~10 km from Seattle (reachable by car and bus)

💸 Flights from ~$681

Kenmore Air Harbor Seaplane Base (LKE)

Kenmore Air Harbor Seaplane Base provides a unique arrival experience for flights to Seattle.

📍 ~5 km from Seattle (reachable by car)

💸 Flights from ~$577

Airports nearby Seattle used as alternative

Paine Field Everett (PAE)

Paine Field Everett (PAE) offers a convenient alternative for North Seattle residents with shorter security wait times.

📍 ~35 km from Seattle (reachable by car)

💸 Flights from ~$157

Portland International (PDX)

Cheapest

Portland International (PDX) is a major hub that can be a price competitor for domestic and international flights.

📍 ~230 km from Seattle (reachable by car or train)

💸 Flights from ~$118

Vancouver International (YVR)

Vancouver International (YVR) is a major international gateway with extensive flight options, potentially offering lower fares.

📍 ~230 km from Seattle (reachable by car)

💸 Flights from ~$162

Bellingham International (BLI)

Bellingham International (BLI) is a primary low-cost carrier airport, often featuring budget-friendly fares.

📍 ~145 km from Seattle (reachable by car)

💸 Flights from ~$225

Abbotsford International (YXX)

Abbotsford International (YXX) is an alternative low-cost gateway for Canadian domestic connections with occasional cheaper flights.

📍 ~180 km from Seattle (reachable by car)

💸 Flights from ~$265

Business & First Class Flight Deals to Seattle

47% AI deal score

$457

From SFO

Elite

Oct 28

Seattle, United States

47% AI deal score

$457

From SFO

Elite

Nov 06

Seattle, United States

47% AI deal score

$555

$549

Save $6

From SFO

Elite

Aug 06

Seattle, United States

46% AI deal score

$638

From SFO

Elite

Aug 12

Seattle, United States

46% AI deal score

$638

From SFO

Seattle, United States

45% AI deal score

$515

$487

Save $28

From SFO

Elite

Jul 11

Seattle, United States

44% AI deal score

$687

From SFO

Elite

Sep 17

Seattle, United States

44% AI deal score

$461

$447

Save $14

From SFO

Elite

Oct 31

Seattle, United States

44% AI deal score

$625

From SFO

Elite

Nov 01

Seattle, United States

43% AI deal score

$682

From SFO

Elite

Jun 17

Seattle, United States

43% AI deal score

Seattle, United States

42% AI deal score

$552

Frequently Asked Questions About Flights to Seattle

Historically, the best time to purchase tickets for flights from San Francisco to Seattle is typically 60+ days before departure, where the average price was $272. Waiting until 28-59 days out saw average prices increase slightly to $278. Prices tend to rise significantly closer to departure, with flights booked 14-27 days out averaging $339, and those within 0-6 days of departure costing an average of $480.

Across the trailing quarter, a flight from San Francisco to Seattle is considered a good deal if it is priced at or below $129. The median price for this route in the trailing 90 days was $205. Prices above $429 are typically in the higher range for this route.

Historically, November has been the cheapest month to fly from San Francisco to Seattle, with a median price of $89. October and December also offered competitive prices, both with a median of $129. The annual median price for this route is $205, indicating that these months offer significant savings.

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