Cheap Flights from San Francisco International to Seattle

Compare San Francisco International to Seattle flight deals

Find the cheapest month or even day of the year to fly to Seattle

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Flight deals from San Francisco International to Seattle

Looking for a cheap last-minute deal or the best return flight from San Francisco International Airport to Seattle? If you want to travel next month, return fares start from R 2,553. Find the lowest prices on one-way and return tickets right here.

Seattle.R 952 per passenger.Departing Tue, 22 Sep.One-way flight with United.Outbound direct flight with United departs from San Francisco International on Tue, 22 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 952, select.

Seattle.R 1,268 per passenger.Departing Tue, 10 Nov.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from San Francisco International on Tue, 10 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 1,268, select.

Seattle.R 1,272 per passenger.Departing Tue, 4 Aug.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from San Francisco International on Tue, 4 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 1,272, select.

Seattle.R 1,273 per passenger.Departing Tue, 13 Oct.One-way flight with Delta.Outbound direct flight with Delta departs from San Francisco International on Tue, 13 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 1,273, select.

Seattle.R 1,436 per passenger.Departing Tue, 23 Jun.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Francisco International on Tue, 23 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 1,436, select.

Seattle.R 1,437 per passenger.Departing Tue, 21 Jul.One-way flight with Delta.Outbound direct flight with Delta departs from San Francisco International on Tue, 21 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 1,437, select.

Seattle.R 1,520 per passenger.Departing Tue, 30 Jun.One-way flight with Delta.Outbound direct flight with Delta departs from San Francisco International on Tue, 30 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 1,520, select.

Seattle.R 2,132 per passenger.Departing Thu, 3 Dec.One-way flight with Delta.Outbound direct flight with Delta departs from San Francisco International on Thu, 3 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 2,132, select.

Seattle.R 2,132 per passenger.Departing Mon, 19 Apr.One-way flight with Delta.Outbound direct flight with Delta departs from San Francisco International on Mon, 19 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 2,132, select.

Seattle.R 2,133 per passenger.Departing Wed, 3 Feb.One-way flight with Delta.Outbound direct flight with Delta departs from San Francisco International on Wed, 3 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 2,133, select.

Seattle.R 2,133 per passenger.Departing Mon, 15 Mar.One-way flight with Delta.Outbound direct flight with Delta departs from San Francisco International on Mon, 15 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 2,133, select.

Seattle.R 2,134 per passenger.Departing Wed, 6 Jan.One-way flight with Delta.Outbound direct flight with Delta departs from San Francisco International on Wed, 6 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 2,134, select.

Seattle.R 15,637 per passenger.Departing Sat, 1 May.One-way flight with United.Outbound direct flight with United departs from San Francisco International on Sat, 1 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 15,637, select.

Find the cheapest month to fly from San Francisco International to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Francisco International to Seattle flights are currently cheapest in September.

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Direct flights from San Francisco International to Seattle

Alternative San Francisco International to Seattle routes

Looking for the cheapest, fastest or easiest route from San Francisco International to Seattle? You could fly into the following airports instead.

San Francisco to Seattle: Flight information

The things to know before you go.

Cheapest flight found	R 952
Cheapest month to fly	September
Average flight time	2 hrs, 14 mins
Most popular airline	Alaska Airlines
Average flights per week	919

Finding cheap flights from San Francisco International to Seattle: Frequently asked questions

How many airports are there in Seattle?

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.

How much are return flights from San Francisco International to Seattle?

The best price we found for a return flight from San Francisco International to Seattle is R 1,867. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from San Francisco International to Seattle?

2 hours and 13 minutes is the average flight time from San Francisco International to Seattle.

Which airlines fly direct from San Francisco International to Seattle?

Alaska Airlines, Qatar Airways and United fly direct from San Francisco International to Seattle.

How many flights are there a week from San Francisco International to Seattle?

As of June 2026, there are 919 flights per week flying from San Francisco International to Seattle.

When is the cheapest time to fly from San Francisco International to Seattle?

The cheapest month to fly from San Francisco International to Seattle is usually September.

Which is the cheapest airport to fly into in Seattle?

If you're flying from San Francisco International Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from R 1,867.

Which upcoming date is cheapest to fly from San Francisco International Airport to Seattle on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Francisco International Airport to Seattle on Tuesday, 15 September 2026.

Can I get a direct flight from San Francisco International Airport to Seattle?

Yes – the average flight time is 2 hours and 13 minutes.

How can I get the best flight deal from San Francisco International Airport to Seattle?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Seattle?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.

What’s the weather like in Seattle?

In June, the average temperature is usually around 14°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.

Which is the cheapest airline to fly from San Francisco International Airport to Seattle with?

Currently, Alaska Airlines offers the cheapest flight tickets to Seattle.

Travelling from San Francisco International Airport (SFO) to Seattle: what you need to know

Jump on a direct flight from San Francisco International Airport to Seattle and you'll be travelling for an average of 2 hours 15 minutes.
San Francisco (the location of San Francisco International Airport) and Seattle are in the same timezone — UTC-8.
With 133 weekly flights between the two airports, San Francisco International Airport (SFO) to Seattle-Tacoma International Airport (SEA) is the busiest route. Alaska Airlines operates the earliest flight at 06:00. If you're eager to make the most of your day before taking off, the last flight from SFO to SEA is with United Airlines at 23:15.
For a relaxed start to your SFO to Seattle flight, leave enough time to check in and find your gate. Arriving two hours before international departures and an hour before domestic flights is the general rule.
During popular months like July, it's wise to get to the airport earlier than usual. Plan to arrive two hours before a domestic departure and four hours ahead of an international flight whenever you're flying during peak periods in general.
Direct San Francisco International Airport to Seattle tickets are available for booking. Seattle-Tacoma International Airport (SEA) will be where your journey ends.
Choose from a variety of airlines operating direct flights from San Francisco International Airport to Seattle. Get up and away with one of these:
The journey from central San Francisco to SFO takes around 35 minutes on public transport. If you ride-share, drive or take a taxi, you'll cover the 18 kilometres in 25 minutes or so, depending on traffic.
Want a hassle-free start to your holiday? Stay near SFO. Whether you're catching an early flight from San Francisco International Airport to Seattle or don't want departure day to feel hectic, these hotels are worth a look:
When it comes to San Francisco International Airport's on-time performance, data shows 78% of flights stick to their scheduled arrival time.

How to find the cheapest flights from San Francisco International Airport (SFO) to Seattle

The best price we've found for a one-way San Francisco International Airport to Seattle flight is R 952. The cheapest price for a return flight is R 1,867. Bear in mind fares may change due to availability at the time of booking.
Don't leave everything to the last minute. You're more likely to land cheap flights from SFO to Seattle if you book early. Airlines often have some amazing early bird rates.
Finding cheap tickets from San Francisco International Airport to Seattle is easier if you're flexible with your dates. Use the 'Whole month' search tool to access the best prices throughout the month and bag an incredible deal.
Save time searching for cheap flights from SFO to Seattle by creating a Price Alert. We'll send you an email or notification on the app when a lower fare pops up.
Snag an affordable flight from San Francisco International Airport to Seattle with the help of our filters. Choose your ideal times, airlines and number of stops, then sort the results by 'Cheapest' to see the best deals.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

Seattle-Tacoma International Airport (SEA) is around 23 kilometres from central Seattle. If you're opting for a ride-share or a taxi, the drive will take roughly 25 minutes.
Travelling to the centre by public transport takes about 35 minutes.
If you have a late flight from San Francisco International Airport to Seattle, nothing beats the convenience of staying close to the terminal. Grab your suitcases from the carousel and then be showered and snoozing not long after at one of these accommodation options near SEA:
Get the best deal by booking your ride from Seattle-Tacoma International Airport around one week in advance of your flight from SFO to Seattle.

Seattle Paine Field International Airport (PAE)

After your flight from San Francisco International Airport to Seattle has hit the tarmac, you can make your way to the city centre in about 40 minutes by car. Central Seattle is roughly 40 kilometres from Seattle Paine Field International Airport (PAE).
If you travel by public transport, the ride to the centre takes 1 hour 30 minutes or so.
After stepping off your SFO to Seattle flight, kick back at a hotel near PAE. These are some great accommodation options that'll help you slip into relaxation mode:
Avoid filling out paperwork at the rental desk by completing your booking beforehand. Secure your ride from PAE ahead of time so you can just get the keys and go.

King County International Airport (BFI)

Make tracks for the city centre after your flight from San Francisco International Airport to Seattle has arrived. Central Seattle is about 11 kilometres from King County International Airport (BFI) and takes roughly 20 minutes to reach by car.
The journey will take about 35 minutes when travelling by public transport.
Reserve a hotel close to BFI and go from landing to lounging in your room in a flash. Whether you're arriving on a late SFO to Seattle flight or just want to keep your travel plans simple, these stays are all about convenience:
Rental agencies sometimes offer promotions on early bookings, so secure your vehicle from BFI a few weeks ahead of your flight from San Francisco International Airport to Seattle. Plan ahead and your wallet will thank you.

Best time to go to Seattle

July is the busiest month for flights from San Francisco International Airport to Seattle. To skip the crowds, visit Seattle in December.
Book a San Francisco International Airport to Seattle plane ticket with a departure in August to experience the city during its warmest month. Expect temperatures to range from 12ºC (54ºF) to 28ºC (82ºF).
February sees average temperatures of between -1ºC (30ºF) and 11ºC (52ºF). Search for a cheap ticket from SFO to Seattle around that time if you like travelling in cooler conditions.

More about Seattle

After booking your flight from San Francisco International Airport to Seattle, find a hotel that offers both comfort and a great location. Make one of these options your base for exploring Seattle:
All great journeys should include a little sightseeing. Pike Place Market, Space Needle and Seattle Skyline are must-do's during your Seattle adventure.

Explore more of the United States

You've visited Seattle, now it's time to discover more of the United States. Travel about 241 kilometres south to Portland to check off its top attractions. From Portland Japanese Garden to Peninsula Park Rose Garden and Beyond Van Gogh Portland, there's plenty to keep you on the go.
If there's time to check out another major destination in the United States, head for Spokane, roughly 370 kilometres east of Seattle. Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes are key highlights.