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Find Cheap Flights from Boston Logan International to San Francisco (BOS - SFO)

Search hundreds of travel sites at once for cheap flights to San Francisco

Thu 17/8
Thu 24/8
Any month
1 adult
Compare vs KAYAK all | none

Good to know

Low season:
January
Best time to beat the crowds
31%
expected price decrease
High season:
July
Best time to beat the crowds
16%
expected price decrease
Average price:
£608
(avg. price over the last 72 hours)
Good deal:
£310
or less return trip within
2 months
of travel is a good deal

When to Book Flights from Boston Logan International to San Francisco

Average price per month
Evolution of prices over the 90 days prior to departure date
-1 day
-2 days

Top tips for Finding a Cheap Flight

The cheapest flight from Boston Logan International to San Francisco was found, on average, 34 days before departure.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be July. The cheapest month to fly is January.
Morning departure is around 2% 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 Boston Logan International to San Francisco Flights

How long does a flight from Boston Logan International to San Francisco take?
An average non-stop flight takes 6h 27m hours, covering a distance of 2697 miles.
How many flights are there between Boston Logan International and San Francisco?
There are 752 (non-stop) flights between Boston Logan International and San Francisco per week, averaging 111 per day.
Which airlines provide the cheapest flights from Boston Logan International to San Francisco?
In the past 3 days, the cheapest return tickets were found on Sun Country Air (£237), JetBlue (£263) and Virgin America (£263).
Do I need a passport to fly between Boston Logan International and San Francisco?
No.
Which airlines fly most frequently between Boston Logan International and San Francisco?
United (19 times daily), Air New Zealand (17 times daily), Virgin America (9 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly from Boston Logan International to San Francisco?
For Boston Logan International to San Francisco, Thursday is the cheapest day to fly on average and Monday is the most expensive. Flying from San Francisco back to Boston Logan International, the best deals are generally found on Tuesday, with Thursday being the most expensive.

Book cheap flights from Boston Logan International to San Francisco (return)

Airports
Origin
Boston
£237
only
£237
Destination
San Francisco
£237
only
£237
Thu, 7 Sep
BOS
SFO
8h 05m
Thu, 14 Sep
SFO
BOS
7h 30m
£237
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 6484 reviews
Overall
8.2
Boarding
8.3
Comfort
7.9
Crew
8.6
Entertainment
7.0
Food
7.3
DFW
MSP
Good 7.3

The plane was hot the air conditioning was not turned on which made it hot and uncomfortable.

MSP
LAX
Excellent 10.0

Nothing

JFK
MSP
OK 6.0

Uncomfortable seats

ANC
MSP
Good 8.0

Fast boarding and great service. Funny piolet was a a plus.

Paying for tablet use during a 6 hour flight.

PDX
MSP
Excellent 10.0

First time flying Sun Country. What an exceptional airline. Will definitely be flying them again.

Thu, 31 Aug
BOS
SFO
6h 29m
Wed, 6 Sep
SFO
BOS
5h 38m
£263
Trip: 7 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 24 reviews
Overall
8.0
Boarding
8.0
Comfort
8.1
Crew
8.4
Entertainment
7.8
Food
7.6
SFO
JFK
OK 4.6

Legroom

Schedule delay by more than 2 hours

BOS
SFO
Excellent 10.0

The staff was friendly and very helpful

The delay

ACK
JFK
Good 7.0

The process. The flight. The crew.

Our entertainment TV didn't work

DCA
TPA
Excellent 10.0

The pilot nailed the landing. I always grade the landings from 1-10. This was the first 10 I have ever given.

BOS
SFO
Excellent 8.3

Staff was great

Sat, 30 Sep
BOS
SFO
6h 27m
Sun, 8 Oct
SFO
BOS
5h 45m
£263
Trip: 9 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 263 reviews
Overall
8.2
Boarding
8.3
Comfort
8.2
Crew
8.5
Entertainment
7.9
Food
7.6
BOS
SFO
Good 8.0

felt safe, on time and willing to work with everyone down the line for safety. comfort, efficient plane crew. solid experience!

BOS
SFO
Excellent 10.0

Everything about the Virgin experience is superior: the crew, the planes, the entertainment system, etc. etc. I am going to be very sad if Alaska dismantles it.

Took too long to get the bags off at SFO.

BOS
SFO
Excellent 9.0

Wish there were some vegetarian/plant-based food options. And that a few movie options were included in the price of the flight.

BOS
SFO
Mediocre 4.0

First flight cancelled due to clogged toilets. Almost missed our next flight because they took forever to get the bags off the plane. Then no snacks for a six hour flight and only 1 drink offered?!

BOS
SFO
OK 5.0

Since Richard Branson left Virgin has transformed to a money grubbing airline nickel and dimeing its customers.

Don't like charges for movies on coast to coast flights. $25 per checked bag may be industry standard but it's horrible. The cabin in flight temperature was hot and uncomfortable.

Sat, 4 Nov
BOS
SFO
6h 43m
Fri, 10 Nov
SFO
BOS
5h 50m
£263
Trip: 7 days
10.0ExcellentShow reviews
Overall 10.0 Excellent
Based on 1 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
ATL
MIA
Good 6.6

Courteous crew

Not enough room. Older plane model. No screens for entertainment.

MSP
BIL
Excellent 10.0

Wonderful experience with the staff.

No complaints.

DTW
JFK
OK 4.6

Updated plane, movies are old but a verity

Lost two pieces of luggage

AMS
MSP
Excellent 10.0

Staff was amazing and pleasant. Had decent food and as much comfort as zone 3 can offer.

No complaints.

LAX
ATL
Excellent 10.0

Liked seating in Delta Comfort w own space for carry on and earlier boarding. Staff was attentive snd friendly and offered many snacks. Good choices for tv. Should option of getting head phones as I had the wrong one. Comfortable

Should have one free luggage for Delta Comfort. More variety of food to purchash

Mon, 18 Sep
BOS
SFO
8h 10m
Thu, 21 Sep
SFO
BOS
7h 30m
£237
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 6484 reviews
Overall
8.2
Boarding
8.3
Comfort
7.9
Crew
8.6
Entertainment
7.0
Food
7.3
MSP
BOS
Good 7.0

It would be better to have more food choices - especially for flights which depart late in the evening.

SEA
MSP
OK 6.0

There was no communication as to why our boarding process was delayed 1 hour. Clearly there was USPS mail being unloaded but no communication was offered until 45 minutes after our initial board time. It does not bother me the flight was delayed, it was unprofessional not to offer any communication.

JFK
MSP
OK 6.0

Uncomfortable seats

MSP
ANC
Good 6.3

Same comment as above.

Same comment as above

PDX
MSP
Excellent 10.0

First time flying Sun Country. What an exceptional airline. Will definitely be flying them again.

Wed, 25 Oct
BOS
SFO
8h 10m
Mon, 30 Oct
SFO
BOS
7h 30m
£237
Trip: 6 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 6484 reviews
Overall
8.2
Boarding
8.3
Comfort
7.9
Crew
8.6
Entertainment
7.0
Food
7.3
ANC
MSP
Good 8.0

Fast boarding and great service. Funny piolet was a a plus.

Paying for tablet use during a 6 hour flight.

PDX
MSP
Excellent 10.0

First time flying Sun Country. What an exceptional airline. Will definitely be flying them again.

MSP
BOS
Good 7.0

It would be better to have more food choices - especially for flights which depart late in the evening.

SEA
MSP
OK 6.0

There was no communication as to why our boarding process was delayed 1 hour. Clearly there was USPS mail being unloaded but no communication was offered until 45 minutes after our initial board time. It does not bother me the flight was delayed, it was unprofessional not to offer any communication.

MSP
ANC
Good 6.3

Same comment as above.

Same comment as above

Sat, 16 Sep
BOS
SFO
6h 31m
Mon, 18 Sep
SFO
BOS
5h 38m
£263
Trip: 3 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 24 reviews
Overall
8.0
Boarding
8.0
Comfort
8.1
Crew
8.4
Entertainment
7.8
Food
7.6
ACK
JFK
Good 7.0

The process. The flight. The crew.

Our entertainment TV didn't work

DCA
TPA
Excellent 10.0

The pilot nailed the landing. I always grade the landings from 1-10. This was the first 10 I have ever given.

BOS
SFO
Good 7.6

On time departure and early arrival. Excellent cabin crew - very attentive and generous with snacks. Reliable free wifi.

I couldn't get a seat assignment ahead of arrival at airport without paying for an Even More Space seat. Then I ended up in an exit row with no window. Not cool JetBlue. I'm a longtime True Blue member and MasterCard holder; you'll be hearing from me about this.

BOS
SFO
Mediocre 4.0

They make us expend 5 hour at the JFK airport at New York and to this point I don't understand why.

BOS
SFO
Good 7.0

Nice legroom, profession, friendly staff

In flight entertainment was not functional for me and my two seatmates.

Sun, 29 Oct
BOS
SFO
6h 43m
Mon, 6 Nov
SFO
BOS
5h 40m
£263
Trip: 9 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 263 reviews
Overall
8.2
Boarding
8.3
Comfort
8.2
Crew
8.5
Entertainment
7.9
Food
7.6
BOS
SFO
Good 6.3

Nice service

Waited on plane for about 2 hours before taking off. Claimed it was a screw that fell off a non-concerning part. Landed over an hour late. Just ok.

BOS
SFO
Excellent 10.0

arrive d late but still left on time andmade up for it

too damn cold the song rap song was crap..about safety seriously

BOS
SFO
Excellent 10.0

Everything about the Virgin experience is superior: the crew, the planes, the entertainment system, etc. etc. I am going to be very sad if Alaska dismantles it.

Took too long to get the bags off at SFO.

BOS
SFO
OK 5.0

Since Richard Branson left Virgin has transformed to a money grubbing airline nickel and dimeing its customers.

Don't like charges for movies on coast to coast flights. $25 per checked bag may be industry standard but it's horrible. The cabin in flight temperature was hot and uncomfortable.

BOS
SFO
Mediocre 4.0

First flight cancelled due to clogged toilets. Almost missed our next flight because they took forever to get the bags off the plane. Then no snacks for a six hour flight and only 1 drink offered?!

Sat, 17 Feb
BOS
SFO
7h 05m
Sun, 25 Feb
SFO
BOS
5h 50m
£283
Trip: 9 days
10.0ExcellentShow reviews
Overall 10.0 Excellent
Based on 1 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
LAX
ATL
Excellent 10.0

Liked seating in Delta Comfort w own space for carry on and earlier boarding. Staff was attentive snd friendly and offered many snacks. Good choices for tv. Should option of getting head phones as I had the wrong one. Comfortable

Should have one free luggage for Delta Comfort. More variety of food to purchash

SAN
ATL
Excellent 10.0

More entertainment options were added. Thank you

It didn't fly fast enough. Jk. Not much to say

ATL
MIA
Good 6.6

Courteous crew

Not enough room. Older plane model. No screens for entertainment.

AMS
MSP
Excellent 10.0

Staff was amazing and pleasant. Had decent food and as much comfort as zone 3 can offer.

No complaints.

LAX
PHX
Mediocre 2.6

Got stuck for two hours sitting in the plane because the computer systems went down.

Thu, 2 Nov
BOS
SFO
13h 05m
Sun, 5 Nov
SFO
BOS
7h 30m
£237
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 6484 reviews
Overall
8.2
Boarding
8.3
Comfort
7.9
Crew
8.6
Entertainment
7.0
Food
7.3
PDX
MSP
Excellent 10.0

First time flying Sun Country. What an exceptional airline. Will definitely be flying them again.

JFK
MSP
Good 6.3

On time comfortable ride

No free entertainment. Not providing anything special that would distinguish it from the major carriers. For exampls Southwest and Jetblue provide free snacks and movies.

SEA
MSP
OK 6.0

There was no communication as to why our boarding process was delayed 1 hour. Clearly there was USPS mail being unloaded but no communication was offered until 45 minutes after our initial board time. It does not bother me the flight was delayed, it was unprofessional not to offer any communication.

JFK
MSP
OK 6.0

Uncomfortable seats

MSP
ANC
Good 6.3

Same comment as above.

Same comment as above

Fri, 6 Oct
BOS
SFO
6h 31m
Wed, 11 Oct
SFO
BOS
5h 42m
£263
Trip: 6 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 24 reviews
Overall
8.0
Boarding
8.0
Comfort
8.1
Crew
8.4
Entertainment
7.8
Food
7.6
BOS
SFO
Excellent 8.3

Staff was great

BOS
SFO
Excellent 9.6

JetBlue is always an excellent airline to fly. Always know what youre going to get.

The AC was broken or something of the sort, so it was very hot. Made the 6 hour trip extremely uncomfortable.

BOS
SFO
Excellent 10.0

The staff was friendly and very helpful

The delay

BOS
SFO
Excellent 10.0

Excellent service

Too long flight time I noticed the plane speed was 440 MPH most of the time. This may be the first flight I sat which was flying this slow

BOS
SFO
Excellent 9.3

'Nice seat. Pleasant ambiance. Free WiFi. Nice crew.

Cold not find a power outlet.

Sun, 28 Jan
BOS
SFO
6h 40m
Sat, 3 Feb
SFO
BOS
5h 35m
£263
Trip: 7 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 263 reviews
Overall
8.2
Boarding
8.3
Comfort
8.2
Crew
8.5
Entertainment
7.9
Food
7.6
BOS
SFO
Good 6.3

Nice service

Waited on plane for about 2 hours before taking off. Claimed it was a screw that fell off a non-concerning part. Landed over an hour late. Just ok.

BOS
SFO
Excellent 9.0

Wish there were some vegetarian/plant-based food options. And that a few movie options were included in the price of the flight.

BOS
SFO
Excellent 10.0

Everything about the Virgin experience is superior: the crew, the planes, the entertainment system, etc. etc. I am going to be very sad if Alaska dismantles it.

Took too long to get the bags off at SFO.

BOS
SFO
OK 5.0

Since Richard Branson left Virgin has transformed to a money grubbing airline nickel and dimeing its customers.

Don't like charges for movies on coast to coast flights. $25 per checked bag may be industry standard but it's horrible. The cabin in flight temperature was hot and uncomfortable.

BOS
SFO
Good 7.6

They don't offer milk to drink or snacks.

Fri, 10 Nov
BOS
SFO
8h 15m
Mon, 13 Nov
SFO
BOS
7h 30m
£237
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 6484 reviews
Overall
8.2
Boarding
8.3
Comfort
7.9
Crew
8.6
Entertainment
7.0
Food
7.3
CUN
DFW
Good 6.5

delayed flights

MSP
BOS
Good 7.0

It would be better to have more food choices - especially for flights which depart late in the evening.

ANC
MSP
Good 8.0

Fast boarding and great service. Funny piolet was a a plus.

Paying for tablet use during a 6 hour flight.

PDX
MSP
Excellent 10.0

First time flying Sun Country. What an exceptional airline. Will definitely be flying them again.

MSP
ANC
Good 6.3

Same comment as above.

Same comment as above

Fri, 1 Dec
BOS
SFO
6h 51m
Tue, 5 Dec
SFO
BOS
5h 28m
£263
Trip: 5 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 24 reviews
Overall
8.0
Boarding
8.0
Comfort
8.1
Crew
8.4
Entertainment
7.8
Food
7.6
BOS
SFO
Excellent 10.0

Excellent service

Too long flight time I noticed the plane speed was 440 MPH most of the time. This may be the first flight I sat which was flying this slow

ACK
JFK
Good 7.0

The process. The flight. The crew.

Our entertainment TV didn't work

DCA
TPA
Excellent 10.0

The pilot nailed the landing. I always grade the landings from 1-10. This was the first 10 I have ever given.

BOS
SFO
Excellent 9.3

'Nice seat. Pleasant ambiance. Free WiFi. Nice crew.

Cold not find a power outlet.

BOS
SFO
Mediocre 4.0

They make us expend 5 hour at the JFK airport at New York and to this point I don't understand why.

Wed, 7 Feb
BOS
SFO
6h 52m
Mon, 26 Feb
SFO
BOS
5h 30m
£263
Trip: 20 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 263 reviews
Overall
8.2
Boarding
8.3
Comfort
8.2
Crew
8.5
Entertainment
7.9
Food
7.6
BOS
SFO
Good 8.0

felt safe, on time and willing to work with everyone down the line for safety. comfort, efficient plane crew. solid experience!

BOS
SFO
Good 6.3

Nice service

Waited on plane for about 2 hours before taking off. Claimed it was a screw that fell off a non-concerning part. Landed over an hour late. Just ok.

BOS
SFO
Good 7.6

They don't offer milk to drink or snacks.

BOS
SFO
OK 5.6

Crew

Tv options were ok but not great. Worked fine throughout. Didn't have snacks. Maybe I fell asleep though so could have been me. Just tired of delays overall. Always seems to be late communication. Both flights there and back were delayed.

BOS
SFO
Excellent 10.0

Everything about the Virgin experience is superior: the crew, the planes, the entertainment system, etc. etc. I am going to be very sad if Alaska dismantles it.

Took too long to get the bags off at SFO.

Thu, 21 Dec
BOS
SFO
6h 40m
Tue, 26 Dec
SFO
BOS
7h 21m
£318
Trip: 6 days
10.0ExcellentShow reviews
Overall 10.0 Excellent
Based on 1 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
SAN
ATL
Excellent 10.0

More entertainment options were added. Thank you

It didn't fly fast enough. Jk. Not much to say

JFK
FRA
OK 6.0

Boarding was very organized and quick. Slight delay taking off but not bad for JFK. Lovely crew. Bumpy flight but the captain kept us informed. Food better than expected. Flight arrived early but no gate so we had to wait.

OMG! The seats are obnoxiously close together. I could only sit perfectly upright and even then my knees were pressed tightly against the seat in front of me. I am only 5'7". Impossible to rest due to lack of space. I tried to put my head down on my tray table but couldn't since it hit the seat in front of me. Mid flight my 13 year old daughter got back spasms. Upon arrival we could barely walk and looked like two old women limping down the jetway. No idea how a tall or larger person could have even sat down.

DTW
JFK
OK 4.6

Updated plane, movies are old but a verity

Lost two pieces of luggage

LAX
ATL
Excellent 10.0

Liked seating in Delta Comfort w own space for carry on and earlier boarding. Staff was attentive snd friendly and offered many snacks. Good choices for tv. Should option of getting head phones as I had the wrong one. Comfortable

Should have one free luggage for Delta Comfort. More variety of food to purchash

LAX
PHX
Mediocre 2.6

Got stuck for two hours sitting in the plane because the computer systems went down.

Mon, 28 Aug
BOS
SFO
6h 29m
Thu, 31 Aug
SFO
BOS
5h 39m
£412
Trip: 4 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 24 reviews
Overall
8.0
Boarding
8.0
Comfort
8.1
Crew
8.4
Entertainment
7.8
Food
7.6
BOS
SFO
Good 7.6

On time departure and early arrival. Excellent cabin crew - very attentive and generous with snacks. Reliable free wifi.

I couldn't get a seat assignment ahead of arrival at airport without paying for an Even More Space seat. Then I ended up in an exit row with no window. Not cool JetBlue. I'm a longtime True Blue member and MasterCard holder; you'll be hearing from me about this.

BOS
SFO
Excellent 10.0

The staff was friendly and very helpful

The delay

BOS
SFO
Mediocre 4.0

They make us expend 5 hour at the JFK airport at New York and to this point I don't understand why.

BOS
SFO
Good 7.0

Nice legroom, profession, friendly staff

In flight entertainment was not functional for me and my two seatmates.

BOS
SFO
Excellent 10.0

Excellent service

Too long flight time I noticed the plane speed was 440 MPH most of the time. This may be the first flight I sat which was flying this slow

Show more results

Boston Logan International - San Francisco Flights

Departure:

Boston Logan International (BOS) United States

Destination:

San Francisco (SFO) United States

Browse origins:

  • Flights » 
  • Worldwide » 
  • North America » 
  • United States » 
  • Massachusetts » 
  • Boston Logan International:
£222

Browse destinations:

  • Flights » 
  • Worldwide » 
  • North America » 
  • United States » 
  • California » 
  • San Francisco:
£222

*
Prices are per person, are for e–tickets and include all taxes & fees in GBP.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller
At KAYAK we don’t set prices, so it’s not possible for us to guarantee what other companies are selling.

We aggregate tons of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we don't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car hires can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find on occasion that certain prices are no longer available.

More questions or if you have a bad price to report to us
Please send us an email and someone from our team will get back to you promptly.

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.