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

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Good to Know

Low Season:
September
Best time to beat the crowds
1%
expected price decrease
High Season:
April
Most popular time to fly
7%
expected price increase
Average Price:
$242
(avg. price over the last 2 weeks)
Good Deal:
$158
or less (round trip)

When to Book Flights from San Francisco to Seattle/Tacoma Intl

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $157 or less.
The cheapest flight from San Francisco to Seattle/Tacoma Intl was found 27 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
High season is considered to be March, April and May. The cheapest month to fly is September.
Morning departure is around 13% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking San Francisco to Seattle/Tacoma Intl Flights

How long does a flight from San Francisco to Seattle/Tacoma Intl take?
An average nonstop flight takes 2h 01m, covering a distance of 679 miles.
How many flights are there between San Francisco and Seattle/Tacoma Intl?
There are 1,922 (nonstop) flights between San Francisco and Seattle/Tacoma Intl per week, averaging 297 per day.
Which airlines provide the cheapest flights from San Francisco to Seattle/Tacoma Intl?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($115), Virgin America ($116) and Delta ($117).
Do I need a passport to fly between San Francisco and Seattle/Tacoma Intl?
No.
Which airlines fly most frequently between San Francisco and Seattle/Tacoma Intl?
American Airlines (37 times daily), Alaska Airlines (37 times daily), Delta (18 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly San Francisco to Seattle/Tacoma Intl?
For San Francisco to Seattle/Tacoma Intl, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Seattle/Tacoma Intl back to San Francisco, the best deals are generally found on Friday, with Tuesday being the most expensive.

Book cheap flights from San Francisco to Seattle/Tacoma Intl (round-trip)

Airports
Origin
San Francisco
$115
only
$115
Destination
Seattle
$115
only
$115
Tue, Apr 3
SFO
SEA
2h 01m
Fri, Apr 13
SEA
SFO
2h 06m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Apr 4
SFO
SEA
2h 04m
Fri, Apr 13
SEA
SFO
2h 06m
Trip: 10 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 341 reviews
Overall
8.3
Boarding
8.3
Comfort
8.2
Crew
8.5
Entertainment
8.0
Food
7.7
SFO
SEA
Excellent 8.0

They actually had movies that you could watch.

N/A

SFO
SEA
Good 6.0

Flight was delayed an hour and a half and we were given no updates/information from the airline as to why until after we boarded. Very poor customer service by VA.

SFO
SEA
Excellent 8.0

I love the Red system. Was able to order what I wanted even though I was in the very back of the plane

SFO
SEA
Excellent 10.0

very smooth flight

SFO
SEA
Excellent 10.0

How well run, communicative, and nice virgin staff is

That Alaska is going to kill them

Sun, Feb 4
SFO
SEA
2h 20m
Mon, Feb 12
SEA
SFO
2h 20m
Trip: 9 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 20 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
SFO
SEA
Good 6.0

The boarding was quick and the gate agent was efficient

We not only left 45 minutes late, but there was no beverage service on the flight.

YUL
DTW
Mediocre 2.0

Not applied

Not applied

SFO
SEA
Good 6.3

small plane, good crew

baggage check: very long lines and wait time. poor organization

LAX
CUN
Mediocre 2.6

Terrible customer service both on the phone before the flight, but Especially from the gate agent. Wow she was really horrible.

The flight attendants on board were good! They helped get everything straight. Easily could have been handled by the incompetent gate agent. Wow.

SFO
SEA
Okay 5.2

Free drinks

Corn nuts for snack. I'm allergic to corn. I get people want snacks on a flight and you can't make everyone happy. It was ok. I just said no to them.

Fri, Feb 9
SFO
SEA
2h 01m
Wed, Feb 14
SEA
SFO
2h 17m
Trip: 6 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 274 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.9
Food
8.0
SFO
SEA
Good 6.3

Terminal 2 in SF is great...whole vibe plus food and seating options are top top...SeaTac needs to up their game feels makes it feels like a food court at a subpar mall.

Wish there was in seat inflight entertainment like Virgin America.

SFO
SEA
Mediocre 3.3

not too much

We made it to the gate with a good 10 minutes before take off. They did not call our names on the overhead because we were nearby the gate. But when we approached them at the gate counter, I heard the radio saying that our flight was pushing back. WTF?? Luckily they were able to get us on the next flight an hour later. But still, not impressed.

SFO
SEA
Okay 4.0

Terminal situation at SFO is horrible. Delayed flight, no announcements shuttle to board plane, no heiarchy for passenger boarding. Was a few-for-all.

SFO
SEA
Mediocre 2.0

I was rerouted at the last minute to another airport. Late taking off. No food on board. They were sold out on another flight.

SFO
SEA
Mediocre 3.0

The staff is wonderfully patient.

Gate changes, delays, presence of plane but lack of crew, food vouchers 15 minutes before venue closed. Uncomfortable seats.

Wed, Feb 14
SFO
SEA
2h 10m
Mon, Feb 26
SEA
SFO
2h 15m
Trip: 13 days
6.4GoodShow reviews
Overall 6.4 Good
Based on 226 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SFO
SEA
Excellent 10.0

Every day they take more away from us....the paying customer. ALL major carriers are becoming LCC ( low cost carriers ). Are there no real domestic airlines left. I REALLY miss Continental.

I used to enjoy flying. Now I dtead it. There is NOTHING to look forward to. These days you get to pick lhe lesser of all evils. Is there an airline out there that REALLY wants me as a customer???

SFO
SEA
Excellent 8.0

On time

SFO
SEA
Excellent 10.0

Smooth flight

No blanket

SFO
SEA
Mediocre 2.0

Captain was 1 hour late, then wasn't prepared with a gate when we arrived in Seattle. I got home 3+ hours later than I expected, and I have a short vacation time.

SFO
SEA
Excellent 8.0

Very smooth fligh and very friendly and helpful staff

The seats were extremely crammed and there were no movies or shows without purchase

Wed, Apr 4
SFO
SEA
2h 11m
Sat, Apr 14
SEA
SFO
2h 17m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Feb 5
SFO
SEA
2h 06m
Sat, Feb 17
SEA
SFO
2h 09m
Trip: 13 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 341 reviews
Overall
8.3
Boarding
8.3
Comfort
8.2
Crew
8.5
Entertainment
8.0
Food
7.7
SFO
SEA
Good 7.0

1 hr delay each way for a 2 hour flight. Going to Seattle, we were already boarded, which is a bit worse.

SFO
SEA
Good 6.0

Flight was delayed an hour and a half and we were given no updates/information from the airline as to why until after we boarded. Very poor customer service by VA.

SFO
SEA
Good 7.3

Boarding was delayed 30 minutes, making the flight late and a challenge for 4 passengers to try to make their connecting flight.

SFO
SEA
Excellent 8.0

I love the Red system. Was able to order what I wanted even though I was in the very back of the plane

SFO
SEA
Excellent 10.0

How well run, communicative, and nice virgin staff is

That Alaska is going to kill them

Sat, Feb 10
SFO
SEA
2h 15m
Fri, Feb 23
SEA
SFO
2h 34m
Trip: 14 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 20 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
SFO
SEA
Okay 5.2

Free drinks

Corn nuts for snack. I'm allergic to corn. I get people want snacks on a flight and you can't make everyone happy. It was ok. I just said no to them.

SAN
LAX
Excellent 10.0

on time

SFO
SEA
Okay 5.3

Quick boarding

The delta comport seats were not comfort seats were hardly comfortable and the leg room wasn't worth paying for.

SFO
SEA
Okay 4.3

One lavatory didn't work and we had to use the nathroom for first class..couldnt access bathroom half of the flight

SFO
SEA
Good 6.3

small plane, good crew

baggage check: very long lines and wait time. poor organization

Tue, Mar 13
SFO
SEA
2h 11m
Wed, Mar 21
SEA
SFO
2h 13m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 274 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.9
Food
8.0
SFO
SEA
Mediocre 2.0

I was rerouted at the last minute to another airport. Late taking off. No food on board. They were sold out on another flight.

SFO
SEA
Good 6.3

Terminal 2 in SF is great...whole vibe plus food and seating options are top top...SeaTac needs to up their game feels makes it feels like a food court at a subpar mall.

Wish there was in seat inflight entertainment like Virgin America.

SFO
SEA
Excellent 9.3

Alaska/virign’s boarding process is pretty dumb. all these different levels of people, which for a regional airline is usually 75% of the load, then, the rest. Good luck on overhead space. Literally everything else about this airline is 100% awesome. Boarding is the only lame thing.

SFO
SEA
Okay 5.3

I checked in to the flight 24 hours ahead to ensure I got an aisle seat, because I knew I’d probably be going back and forth from the bathroom because I had been feeling ill. When I got to the ticket check to board the flight, my name wasn’t found in the system, and I was turned away to go back to the front desk. So I did, and the person there was seemingly able to get me an aisle seat in the same row, just across from where I originally was. But, when I got to the row, another man was in that spot and showed me his ticket which was the same seat I’d seemingly been re-assigned! The middle seat was empty, and so I sat there for the time being, while we enquired about it. One of the flight attendants said they’d look into it, but just seemed to brush it off and never gave us a response. I was mainly annoyed about being shuffled around, getting reassigned a spot and was clear about wanting an aisle seat, and it never happened even though I chose that seat 24 hours ahead in the first place. I felt there were a few chances to make it right, but it never happened.

SFO
SEA
Good 7.3

I was so impressed by the friendly and efficient boarding process and the on-time departure and landing.

USB outlet was loose so cord would fall out (this was true when I flew another Alaska flight earlier in the week as well). Only free snack offering was cookids; prefer a snack with less sugar.

Thu, May 10
SFO
SEA
2h 04m
Sun, May 13
SEA
SFO
2h 20m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Feb 6
SFO
SEA
2h 01m
Sat, Feb 17
SEA
SFO
2h 09m
Trip: 12 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 341 reviews
Overall
8.3
Boarding
8.3
Comfort
8.2
Crew
8.5
Entertainment
8.0
Food
7.7
SFO
SEA
Good 7.6

1) Crew very personable 2) Departure/arrival on schedule 4) Entertainment system had reasonable choices 5) Baggage arrived in reasonable amount of time 6) Seating was comfortable with good leg room

1) No food service on 2+ hr flight / everything cost money

SFO
SEA
Excellent 8.0

I enjoyed the in-flight staff's quips and banter, the easy access to power outlets, the possibility of free access to movies and tv (I found it too late in the flight to finish a whole program before landing).

The Games section of the screen entertainment is a bit lacking. Pre-flight, I would be interested in a reminder email about empty seats that are 1) in a window seat (or whatever other seat you desire but may not already have), and 2) not seated next to any other passengers-it'd be nice to be able to sit alone, when possible.

SFO
SEA
Good 7.3

Boarding was delayed 30 minutes, making the flight late and a challenge for 4 passengers to try to make their connecting flight.

SFO
SEA
Excellent 8.0

I love the Red system. Was able to order what I wanted even though I was in the very back of the plane

SFO
SEA
Excellent 10.0

very smooth flight

Wed, Feb 14
SFO
SEA
2h 23m
Mon, Feb 26
SEA
SFO
2h 20m
Trip: 13 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 20 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
SFO
SEA
Excellent 10.0

The t.v. 's at each seat

Nothing

MSY
JFK
Excellent 10.0

The overhead bin did not stay down low enough so that I could place my bag in. It would lower then before I could place my bag raise slightly by a few inches. For someone of my height (5’5”) that was problematic. Fortunately another passenger saw my dilemma and held the bin lower to its full opening capacity. This also momentarily slowed down the boarding process.

YUL
DTW
Mediocre 2.0

Not applied

Not applied

SAN
LAX
Excellent 10.0

on time

SFO
SEA
Okay 5.3

Quick boarding

The delta comport seats were not comfort seats were hardly comfortable and the leg room wasn't worth paying for.

Thu, May 3
SFO
SEA
2h 07m
Sat, May 12
SEA
SFO
2h 12m
Trip: 10 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 274 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.9
Food
8.0
SFO
SEA
Okay 5.3

I checked in to the flight 24 hours ahead to ensure I got an aisle seat, because I knew I’d probably be going back and forth from the bathroom because I had been feeling ill. When I got to the ticket check to board the flight, my name wasn’t found in the system, and I was turned away to go back to the front desk. So I did, and the person there was seemingly able to get me an aisle seat in the same row, just across from where I originally was. But, when I got to the row, another man was in that spot and showed me his ticket which was the same seat I’d seemingly been re-assigned! The middle seat was empty, and so I sat there for the time being, while we enquired about it. One of the flight attendants said they’d look into it, but just seemed to brush it off and never gave us a response. I was mainly annoyed about being shuffled around, getting reassigned a spot and was clear about wanting an aisle seat, and it never happened even though I chose that seat 24 hours ahead in the first place. I felt there were a few chances to make it right, but it never happened.

SFO
SEA
Mediocre 2.0

I was rerouted at the last minute to another airport. Late taking off. No food on board. They were sold out on another flight.

SFO
SEA
Mediocre 3.0

The staff is wonderfully patient.

Gate changes, delays, presence of plane but lack of crew, food vouchers 15 minutes before venue closed. Uncomfortable seats.

SFO
SEA
Excellent 9.3

Alaska/virign’s boarding process is pretty dumb. all these different levels of people, which for a regional airline is usually 75% of the load, then, the rest. Good luck on overhead space. Literally everything else about this airline is 100% awesome. Boarding is the only lame thing.

SFO
SEA
Mediocre 3.3

not too much

We made it to the gate with a good 10 minutes before take off. They did not call our names on the overhead because we were nearby the gate. But when we approached them at the gate counter, I heard the radio saying that our flight was pushing back. WTF?? Luckily they were able to get us on the next flight an hour later. But still, not impressed.

Wed, Feb 7
SFO
SEA
2h 01m
Sat, Feb 17
SEA
SFO
2h 09m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Feb 8
SFO
SEA
2h 06m
Sat, Feb 17
SEA
SFO
2h 09m
Trip: 10 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 341 reviews
Overall
8.3
Boarding
8.3
Comfort
8.2
Crew
8.5
Entertainment
8.0
Food
7.7
SFO
SEA
Excellent 8.0

I love the Red system. Was able to order what I wanted even though I was in the very back of the plane

SFO
SEA
Excellent 8.0

I enjoyed the in-flight staff's quips and banter, the easy access to power outlets, the possibility of free access to movies and tv (I found it too late in the flight to finish a whole program before landing).

The Games section of the screen entertainment is a bit lacking. Pre-flight, I would be interested in a reminder email about empty seats that are 1) in a window seat (or whatever other seat you desire but may not already have), and 2) not seated next to any other passengers-it'd be nice to be able to sit alone, when possible.

SFO
SEA
Good 7.6

1) Crew very personable 2) Departure/arrival on schedule 4) Entertainment system had reasonable choices 5) Baggage arrived in reasonable amount of time 6) Seating was comfortable with good leg room

1) No food service on 2+ hr flight / everything cost money

SFO
SEA
Good 6.0

Flight was delayed an hour and a half and we were given no updates/information from the airline as to why until after we boarded. Very poor customer service by VA.

SFO
SEA
Mediocre 3.5

There was one flight attendant who was very nice.

Upon arrival we discovered that our seats were separated. This includes my husband, two year old on her first flight--and myself. The attendants acted as if there was nothing they could do. We were one of the last passengers to board the plane and everyone was settled in. We blocked the isle for the last several people trying to get to their seats which was very embarassing and uncomfortable when they had to squeeze around. It was up to us to ask fellow passengers if they'd mind swapping seats with us. We knew putting our two year old between two strangers would have made for a miserable flight for everyone. Finally a couple passengers agreed. Thank goodness for their kindness.

Fri, Feb 23
SFO
SEA
2h 20m
Tue, Feb 27
SEA
SFO
2h 20m
Trip: 5 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 20 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
SFO
SEA
Okay 4.3

One lavatory didn't work and we had to use the nathroom for first class..couldnt access bathroom half of the flight

LAX
CUN
Mediocre 2.6

Terrible customer service both on the phone before the flight, but Especially from the gate agent. Wow she was really horrible.

The flight attendants on board were good! They helped get everything straight. Easily could have been handled by the incompetent gate agent. Wow.

MSY
JFK
Excellent 10.0

The overhead bin did not stay down low enough so that I could place my bag in. It would lower then before I could place my bag raise slightly by a few inches. For someone of my height (5’5”) that was problematic. Fortunately another passenger saw my dilemma and held the bin lower to its full opening capacity. This also momentarily slowed down the boarding process.

SFO
SEA
Good 6.3

small plane, good crew

baggage check: very long lines and wait time. poor organization

SAN
LAX
Excellent 10.0

on time

Fri, Feb 9
SFO
SEA
2h 01m
Sat, Feb 17
SEA
SFO
2h 09m
Trip: 9 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 341 reviews
Overall
8.3
Boarding
8.3
Comfort
8.2
Crew
8.5
Entertainment
8.0
Food
7.7
SFO
SEA
Good 7.6

1) Crew very personable 2) Departure/arrival on schedule 4) Entertainment system had reasonable choices 5) Baggage arrived in reasonable amount of time 6) Seating was comfortable with good leg room

1) No food service on 2+ hr flight / everything cost money

SFO
SEA
Excellent 8.3

the games would not load up on the entertainment screen...the crew was sweet, energetic, and engaging, but were talking load and within easy earshot of pasengers about company gossip and personal dramas...kinda unprofessional...

SFO
SEA
Excellent 8.0

I love the Red system. Was able to order what I wanted even though I was in the very back of the plane

SFO
SEA
Excellent 10.0

very smooth flight

SFO
SEA
Good 7.0

1 hr delay each way for a 2 hour flight. Going to Seattle, we were already boarded, which is a bit worse.

Fri, Feb 16
SFO
SEA
2h 13m
Sun, Mar 18
SEA
SFO
2h 08m
Trip: 30 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Feb 24
SFO
SEA
2h 20m
Sat, Mar 3
SEA
SFO
2h 17m
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 20 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
MSY
JFK
Excellent 10.0

The overhead bin did not stay down low enough so that I could place my bag in. It would lower then before I could place my bag raise slightly by a few inches. For someone of my height (5’5”) that was problematic. Fortunately another passenger saw my dilemma and held the bin lower to its full opening capacity. This also momentarily slowed down the boarding process.

SFO
SEA
Good 6.3

small plane, good crew

baggage check: very long lines and wait time. poor organization

YUL
DTW
Mediocre 2.0

Not applied

Not applied

SFO
SEA
Excellent 9.3

Individual screen and USB port

No issues that could be controlled I.e. Person in seat in front for mine leaning way ......

SFO
SEA
Excellent 10.0

The t.v. 's at each seat

Nothing

Sun, Feb 11
SFO
SEA
2h 01m
Tue, Feb 20
SEA
SFO
2h 15m
Trip: 10 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 341 reviews
Overall
8.3
Boarding
8.3
Comfort
8.2
Crew
8.5
Entertainment
8.0
Food
7.7
SFO
SEA
Excellent 10.0

very smooth flight

SFO
SEA
Excellent 8.0

They actually had movies that you could watch.

N/A

SFO
SEA
Good 7.6

1) Crew very personable 2) Departure/arrival on schedule 4) Entertainment system had reasonable choices 5) Baggage arrived in reasonable amount of time 6) Seating was comfortable with good leg room

1) No food service on 2+ hr flight / everything cost money

SFO
SEA
Good 6.0

Flight was delayed an hour and a half and we were given no updates/information from the airline as to why until after we boarded. Very poor customer service by VA.

SFO
SEA
Excellent 10.0

The flight staff is always friendly, love the comfy seats, the boarding is easy as well as the efficiency when we land. I’m praying this level of service and satisfaction will transition to the transition to Alaska! I just read the latest stats on Travel & Leisure: Virgin voted the #1 Domestic airline again...they have my vote for sure.

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San Francisco to Seattle/Tacoma Intl Flight Information

Avg. Flight Duration 2h 11m
Flights Arrive in Seattle/Tacoma Intl
Flights Depart from San Francisco
Flight Price $115
Distance 679 miles
Airlines Virgin America, Delta, Alaska Airlines, United