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

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Seattle/Tacoma Intl to San Francisco Flight Information

Avg. Flight Duration 2h 15m
Flights Arrive in San Francisco
Flights Depart from Seattle/Tacoma Intl
Flight Price $109
Distance 679 miles
Airlines Delta, Alaska Airlines, United

Good to Know

Low Season:
January
Best time to beat the crowds
3%
expected price decrease
High Season:
July
Most popular time to fly
13%
expected price increase
Average Price:
$156
(avg. price over the last 2 weeks)
Good Deal:
$117
or less (round trip)

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

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 $117 or less.
The cheapest flight from Seattle/Tacoma Intl to San Francisco was found 80 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 June, July and August. The cheapest month to fly is January.
Morning departure is around 12% 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 Seattle/Tacoma Intl to San Francisco Flights

How long does a flight from Seattle/Tacoma Intl to San Francisco take?
An average nonstop flight takes 2h 09m, covering a distance of 679 miles.
How many flights are there between Seattle/Tacoma Intl and San Francisco?
There are 1,935 (nonstop) flights between Seattle/Tacoma Intl and San Francisco per week, averaging 295 per day.
Which airlines provide the cheapest flights from Seattle/Tacoma Intl to San Francisco?
In the past 3 days, the cheapest round-trip tickets were found on Delta ($109), Alaska Airlines ($109) and United ($109).
Do I need a passport to fly between Seattle/Tacoma Intl and San Francisco?
No.
Which airlines fly most frequently between Seattle/Tacoma Intl and San Francisco?
Alaska Airlines (29 times daily), United (24 times daily), Air New Zealand (23 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Seattle/Tacoma Intl to San Francisco?
For Seattle/Tacoma Intl to San Francisco, Saturday is the cheapest day to fly on average and Thursday is the most expensive. Flying from San Francisco back to Seattle/Tacoma Intl, the best deals are generally found on Wednesday, with Friday being the most expensive.

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

Airports
Origin
Seattle
$109
only
$109
Destination
San Francisco
$109
only
$109
Sat, Nov 3
SEA
Seattle/Tacoma Intl
SFO
San Francisco
2h 21m
Tue, Nov 6
SFO
San Francisco
SEA
Seattle/Tacoma Intl
2h 14m
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 31 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.6
Food
7.4
SEA
SFO
Excellent 8.0

Friendly staff

Napkins stuffed in the overhead to fix presumably the rattles.

CDG
EWR
Excellent 10.0

Food, comfort, entertainment and treatment by the crew on this flight was spectacular. There was a lot of food, good entertainment and importantly, the seats were wide and comfortable.

Very old plane, 767-300. The bathrooms needed a better and more thorough renovation.

ROC
ATL
Excellent 10.0

Marti

SEA
SFO
Good 6.3

Delayed for an hour and fifteen minutes

LGA
DCA
Good 7.3

There was no rhyme nor reason for who boarded first

Tue, Jan 8
SEA
Seattle/Tacoma Intl
SFO
San Francisco
2h 10m
Sat, Jan 12
SFO
San Francisco
SEA
Seattle/Tacoma Intl
2h 10m
Trip: 5 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 291 reviews
Overall
8.6
Boarding
8.6
Comfort
8.3
Crew
8.9
Entertainment
7.9
Food
7.9
SEA
SFO
Excellent 10.0

Flight was in time. Crew was polite and we arrive on time

SEA
SFO
Good 7.6

Once agin slow boarding

SEA
SFO
Excellent 8.0

View out window. Legroom was good.

Cattle car crowded, sold out flight. I usually drive or ride motorcycle to travel. I’m a man, not livestock. I need space around me.

SEA
SFO
Okay 5.3

Flew Alaska air - Plenty of leg room and much more than any qantas domestic flight! Empty flight and very short.

Flight was delayed. Inflight entertaining streaming system was not working. Too many people insist on not checking their luggage under, so we almost didn’t have space for our carry on by the time we were allowed to board.

SEA
SFO
Okay 5.6

Window seat

Alaska changed my seat twice, and didn’t let me pick a seat before or at check-in

Tue, Jan 15
SEA
Seattle/Tacoma Intl
SFO
San Francisco
2h 18m
Sat, Jan 19
SFO
San Francisco
SEA
Seattle/Tacoma Intl
2h 17m
Trip: 5 days
6.7GoodShow reviews
Overall 6.7 Good
Based on 218 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SEA
SFO
Excellent 8.3

The flight attendants in first class were very very pleasant. Service was amazing.

Boarding was extremely congested. I know ithis is out if UA control but it seems like it's getting more worst. The food aka snack that was served on the flight was a cold muffin. Not to happy with a cold muffin. I'd rather have chips or pretzels.

SEA
SFO
Excellent 9.3

It was a fine flight. I only had cranberry juice, but it hit the spot.

It was a full flight but I expected that it would be that way after Thanksgiving.

SEA
SFO
Mediocre 2.0

We missed the whole vacation due to United flt. 599 being late into SFO. We missed the Zurich flight by 7 minutes due to a mechanical issue (overhead bin lid would not stay closed.) United customer service was very poor and after 16 hrs. at SO without resolution on flights and schedule, we just came back home. If Siss Air could have waited 10 minutes for 12 or more passengers, we would have been fine. I don't know if United communicated with them or not. This was a disaster!

SEA
SFO
Excellent 9.3

Nothing great, nothing bad. took off and landed on time.

paced seats, nit enough room for carry ons.

SEA
SFO
Mediocre 2.0

Nothing

Our flight was delayed and despite assurances by United staff at the gate in Seattle that we would make our flight in SFO to Zürich we were too late and we missed our flight to Zürich. 14 hours later we are still at SFO trying to get on a flight to Frankfurt then on to Venice. We shall see if it actually happens. The couple we are traveling with gave up and went back home to Boise. They also bought their tickets through Kayak.

Sat, Dec 1
SEA
Seattle/Tacoma Intl
SFO
San Francisco
2h 20m
Tue, Dec 4
SFO
San Francisco
SEA
Seattle/Tacoma Intl
2h 21m
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 31 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.6
Food
7.4
SEA
SFO
Okay 4.6

Larger ore comfortable plane

Bad snacks, bad wifi, no cart for luggage

SEA
SFO
Excellent 8.0

Friendly staff

Napkins stuffed in the overhead to fix presumably the rattles.

ROC
ATL
Excellent 10.0

Marti

CDG
EWR
Excellent 10.0

Food, comfort, entertainment and treatment by the crew on this flight was spectacular. There was a lot of food, good entertainment and importantly, the seats were wide and comfortable.

Very old plane, 767-300. The bathrooms needed a better and more thorough renovation.

PIT
BOS
Okay 5.0

Crew was very kind

Delta delayed us SEVEN times and I type this as we are rounding our 30th minute waiting to get off the plane at Logan.

Sat, Mar 2
SEA
Seattle/Tacoma Intl
SFO
San Francisco
2h 09m
Wed, Mar 6
SFO
San Francisco
SEA
Seattle/Tacoma Intl
2h 06m
Trip: 5 days
6.7GoodShow reviews
Overall 6.7 Good
Based on 218 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SEA
SFO
Good 7.6

They gave me plenty of fluids that I asked for.

They had a problem with the radio which almost made me late for my connecting flight. We left 1.5 hours late.

SEA
SFO
Mediocre 2.0

worst flight ever .... absolutely no leg room. I am 6'5 and i sat in the last row. I asked to have a seat reassignment but the plane was full. I was miserable as hell!! I am very dissatisfied with my experience with United!!

SEA
SFO
Mediocre 2.0

Two hour delay. They gave us three different excuses, probably all lies.

SEA
SFO
Excellent 9.3

It was a fine flight. I only had cranberry juice, but it hit the spot.

It was a full flight but I expected that it would be that way after Thanksgiving.

SEA
SFO
Excellent 8.3

The flight attendants in first class were very very pleasant. Service was amazing.

Boarding was extremely congested. I know ithis is out if UA control but it seems like it's getting more worst. The food aka snack that was served on the flight was a cold muffin. Not to happy with a cold muffin. I'd rather have chips or pretzels.

Sat, Feb 2
SEA
Seattle/Tacoma Intl
SFO
San Francisco
2h 14m
Sat, Feb 9
SFO
San Francisco
SEA
Seattle/Tacoma Intl
2h 22m
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 31 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.6
Food
7.4
CDG
IND
Good 7.3

The service on our flight was absolutely amazing, the food was surprisingly great, and the long ride was as comfortable as it could have been in an economy booking.

My entertainment pad malfunctioned the whole time, even after it was reset. Thankfully I had enough things to keep me busy on my own, but it still would have been nice to have.

SEA
SFO
Okay 4.6

Larger ore comfortable plane

Bad snacks, bad wifi, no cart for luggage

CDG
EWR
Excellent 10.0

Food, comfort, entertainment and treatment by the crew on this flight was spectacular. There was a lot of food, good entertainment and importantly, the seats were wide and comfortable.

Very old plane, 767-300. The bathrooms needed a better and more thorough renovation.

SEA
SFO
Good 6.3

Delayed for an hour and fifteen minutes

ROC
ATL
Excellent 10.0

Marti

Sat, Oct 20
SEA
Seattle/Tacoma Intl
SFO
San Francisco
2h 09m
Tue, Oct 23
SFO
San Francisco
SEA
Seattle/Tacoma Intl
2h 10m
Trip: 4 days
6.7GoodShow reviews
Overall 6.7 Good
Based on 218 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SEA
SFO
Mediocre 2.0

All 4 flights delayed by more than a half hour last leg 1.5 hours united sucks!

SEA
SFO
Mediocre 2.0

worst flight ever .... absolutely no leg room. I am 6'5 and i sat in the last row. I asked to have a seat reassignment but the plane was full. I was miserable as hell!! I am very dissatisfied with my experience with United!!

SEA
SFO
Mediocre 2.0

Two hour delay. They gave us three different excuses, probably all lies.

SEA
SFO
Excellent 9.0

Everything except seating

Uncomfortable seats, not enough legroom for 6 ft or taller passengers.

SEA
SFO
Mediocre 2.0

?

Delayed. Charged for my bag even tho i have the United explorer Visa. Skipped me with pretzels and when I asked for some, it was as if i was asking fir something extraordinary!

Sat, Oct 20
SEA
Seattle/Tacoma Intl
SFO
San Francisco
2h 21m
Sat, Oct 27
SFO
San Francisco
SEA
Seattle/Tacoma Intl
2h 21m
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 31 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.6
Food
7.4
CDG
IND
Good 7.3

The service on our flight was absolutely amazing, the food was surprisingly great, and the long ride was as comfortable as it could have been in an economy booking.

My entertainment pad malfunctioned the whole time, even after it was reset. Thankfully I had enough things to keep me busy on my own, but it still would have been nice to have.

ROC
ATL
Excellent 10.0

Marti

SEA
SFO
Excellent 8.0

Friendly staff

Napkins stuffed in the overhead to fix presumably the rattles.

SEA
SFO
Excellent 10.0

Being on time.

SEA
SFO
Okay 4.6

Snacks that include a dairy free option like the kind granola bar

We were delayed like crazy.

Thu, Feb 21
SEA
Seattle/Tacoma Intl
SFO
San Francisco
2h 14m
Sun, Mar 3
SFO
San Francisco
SEA
Seattle/Tacoma Intl
2h 15m
Trip: 11 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 31 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.6
Food
7.4
SEA
SFO
Okay 4.6

Snacks that include a dairy free option like the kind granola bar

We were delayed like crazy.

SEA
SFO
Mediocre 2.0

Nothing

Multilpe delays

FLL
LGA
Good 7.3

Boarding is as usual chaotic

CDG
IND
Good 7.3

The service on our flight was absolutely amazing, the food was surprisingly great, and the long ride was as comfortable as it could have been in an economy booking.

My entertainment pad malfunctioned the whole time, even after it was reset. Thankfully I had enough things to keep me busy on my own, but it still would have been nice to have.

SEA
SFO
Excellent 8.0

Friendly staff

Napkins stuffed in the overhead to fix presumably the rattles.

Thu, Oct 4
SEA
Seattle/Tacoma Intl
SFO
San Francisco
28h 52m
Sun, Oct 7
SFO
San Francisco
SEA
Seattle/Tacoma Intl
43h 19m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Oct 19
SEA
Seattle/Tacoma Intl
SFO
San Francisco
2h 16m
Sun, Oct 21
SFO
San Francisco
SEA
Seattle/Tacoma Intl
2h 24m
Trip: 3 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 31 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.6
Food
7.4
SEA
SFO
Okay 4.6

Snacks that include a dairy free option like the kind granola bar

We were delayed like crazy.

FLL
LGA
Good 7.3

Boarding is as usual chaotic

SEA
SFO
Excellent 8.0

Friendly staff

Napkins stuffed in the overhead to fix presumably the rattles.

LGA
DCA
Good 7.3

There was no rhyme nor reason for who boarded first

SEA
SFO
Okay 4.6

Larger ore comfortable plane

Bad snacks, bad wifi, no cart for luggage

Thu, Dec 20
SEA
Seattle/Tacoma Intl
SFO
San Francisco
2h 16m
Wed, Dec 26
SFO
San Francisco
SEA
Seattle/Tacoma Intl
2h 12m
Trip: 7 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 291 reviews
Overall
8.6
Boarding
8.6
Comfort
8.3
Crew
8.9
Entertainment
7.9
Food
7.9
SEA
SFO
Okay 5.6

Window seat

Alaska changed my seat twice, and didn’t let me pick a seat before or at check-in

SEA
SFO
Good 7.6

The free movies.

Flight boarded late and left late.

SEA
SFO
Mediocre 3.6

Early boarding

Plane was late no food, no blankets and screwed up checking my bags to Bangkok.

SEA
SFO
Excellent 8.0

Interior layout was pretty cool. Like the class divider and first class seats (even though I didn't sit in them). Pre-flight briefing was entertaining and funny. Gave me the whole can of Sprite!

Nothing truly negative to say.

SEA
SFO
Excellent 10.0

Everything!!!

Thu, Sep 27
SEA
Seattle/Tacoma Intl
SFO
San Francisco
11h 47m
Fri, Sep 28
SFO
San Francisco
SEA
Seattle/Tacoma Intl
2h 08m
Trip: 2 days
6.7GoodShow reviews
Overall 6.7 Good
Based on 218 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
SEA
SFO
Excellent 10.0

Crew were experienced, and worked preemptively to help a number of passengers with tight connections

SEA
SFO
Excellent 9.3

It was a fine flight. I only had cranberry juice, but it hit the spot.

It was a full flight but I expected that it would be that way after Thanksgiving.

SEA
SFO
Mediocre 2.0

worst flight ever .... absolutely no leg room. I am 6'5 and i sat in the last row. I asked to have a seat reassignment but the plane was full. I was miserable as hell!! I am very dissatisfied with my experience with United!!

SEA
SFO
Mediocre 2.0

We missed the whole vacation due to United flt. 599 being late into SFO. We missed the Zurich flight by 7 minutes due to a mechanical issue (overhead bin lid would not stay closed.) United customer service was very poor and after 16 hrs. at SO without resolution on flights and schedule, we just came back home. If Siss Air could have waited 10 minutes for 12 or more passengers, we would have been fine. I don't know if United communicated with them or not. This was a disaster!

SEA
SFO
Mediocre 2.0

?

Delayed. Charged for my bag even tho i have the United explorer Visa. Skipped me with pretzels and when I asked for some, it was as if i was asking fir something extraordinary!

Thu, Sep 27
SEA
Seattle/Tacoma Intl
SFO
San Francisco
2h 17m
Sun, Sep 30
SFO
San Francisco
SEA
Seattle/Tacoma Intl
2h 17m
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 31 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.6
Food
7.4
SEA
SFO
Excellent 8.0

Friendly staff

Napkins stuffed in the overhead to fix presumably the rattles.

SEA
SFO
Good 6.3

Delayed for an hour and fifteen minutes

ROC
ATL
Excellent 10.0

Marti

CDG
EWR
Excellent 10.0

Food, comfort, entertainment and treatment by the crew on this flight was spectacular. There was a lot of food, good entertainment and importantly, the seats were wide and comfortable.

Very old plane, 767-300. The bathrooms needed a better and more thorough renovation.

CDG
IND
Good 7.3

The service on our flight was absolutely amazing, the food was surprisingly great, and the long ride was as comfortable as it could have been in an economy booking.

My entertainment pad malfunctioned the whole time, even after it was reset. Thankfully I had enough things to keep me busy on my own, but it still would have been nice to have.

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