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

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Sun 19/11
Sun 26/11
Any month
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Good to know

Low season:
October
Best time to beat the crowds
2%
expected price decrease
High season:
December
Most popular time to fly
9%
expected price increase
Average price:
£416
(avg. price over the last 2 weeks)
Good deal:
£265
or less (return)

When to Book Flights from Boston Logan International to San Francisco

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

Top tips for Finding a Cheap Flight

When looking for a cheap flight, consider that 25% of our users selected a flight on this route for £265 or less.
The cheapest flight from Boston Logan International to San Francisco was found, on average, 26 days before departure.
Book at least 2 weeks before departure in order to get a below-average price.
Morning departure is around 5% 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 26m, covering a distance of 2697 miles.
How many flights are there between Boston Logan International and San Francisco?
There are 710 (non-stop) flights between Boston Logan International and San Francisco per week, averaging 100 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 (£116), Multiple Airlines (£149) and JetBlue (£160).
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 (16 times daily), Air New Zealand (14 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, Wednesday 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 Saturday being the most expensive.
Flexible dates? Here are the best airfares found in the past 48 hours

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

Airports
Origin
Boston
£116
only
£116
Destination
San Francisco
£116
only
£116
Wed, 29 Nov
BOS
SFO
8h 20m
Wed, 6 Dec
SFO
BOS
7h 40m
£116
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 7150 reviews
Overall
8.2
Boarding
8.3
Comfort
7.9
Crew
8.5
Entertainment
7.0
Food
7.3
PHX
MSP
Excellent 8.0

It was nice

PDX
MSP
Excellent 10.0

First timers on Sun Country and we will definitely use them again, all around class act! Thank You

DEN
MSP
Good 7.5

No snacks for free

DFW
CUN
Excellent 8.6

Timely check in, friendly customer service, good crew, no issues.

They board by row number, but start with first rows first. Makes for slower boarding (though faster than most airlines).

DCA
MSP
Poor 0.0

We boarded the plane and were all settled in when they discovered an issue with the wing. We all deplaned one hour after we were supposed to take off and got in lines to be re-booked on another flight the next day (10am, not an option for us). Luckily, my partner found a delta flight going out that night so we booked the flight while waiting in the sun country line and ran, just barely making it.

Wed, 6 Dec
BOS
SFO
8h 20m
Thu, 14 Dec
SFO
BOS
5h 22m
£149
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Thu, 23 Nov
BOS
SFO
6h 51m
Fri, 24 Nov
SFO
BOS
5h 25m
£160
Trip: 2 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 42 reviews
Overall
8.2
Boarding
8.2
Comfort
8.3
Crew
8.5
Entertainment
8.0
Food
7.8
BOS
SFO
Good 7.6

Had to check basic backpack at the last minute because no overhead space. Unclear instructions as to where to pick it up on the SFO end, leading to further delays getting out of the airport. (Already landing close to 2am at the beginning of a work week - minutes count.)

BOS
SFO
Good 7.0

The trip was comfortable and quiet

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
OK 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
Excellent 9.0

Direct TV offered excellent list of channels.

Movie list is outdated.

Wed, 6 Dec
BOS
SFO
8h 25m
Tue, 12 Dec
SFO
BOS
7h 40m
£116
Trip: 7 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 7150 reviews
Overall
8.2
Boarding
8.3
Comfort
7.9
Crew
8.5
Entertainment
7.0
Food
7.3
MSP
SEA
Excellent 10.0

Sun Country is fantastic for flying to MN and the best part is that you don’t have to fly in to the main big terminal, which is something I really enjoy. Flight service was quick and clean and I was very comfortable on the flight.

DFW
CUN
Excellent 8.6

Timely check in, friendly customer service, good crew, no issues.

They board by row number, but start with first rows first. Makes for slower boarding (though faster than most airlines).

MSP
LAS
OK 4.0

We ran into a combination of traffic, parking, and other issues that drove us to arrive at our check-in at 7pm for a 7:40pm flight. We were not able to check-in given the 45 min rule. NO WHERE in our email did it say there was this rule nor were we prompted or told to check-in prior to our flight online. There's no suncountry app for check-in that we could find (only a visa one). We booked through priceline.The flight hadn't even started boarding and we were not allowed to check-in. We were re-booked on a flight that left two hours later, but that flight was delayed 3 hours. The whole thing essentially took one full night of paid hotel and fun in Vegas away costing us over $200 just in hotel plus we spent an extra 5 hours in an airport that didn't have a bar open past 9pm.

MSP
SFO
Mediocre 2.0

No communication

Our flight was moved to three different gates and delayed, incrementally, by over 4 hours, without even an overhead announcement/update. I realize that while frustrating, delays are inevitable, but communication can go along way! Return flight was only delayed about 1.5 hrs.

DEN
MSP
Good 7.5

No snacks for free

Wed, 6 Dec
BOS
SFO
8h 20m
Wed, 13 Dec
SFO
BOS
7h 40m
£135
Trip: 8 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 7150 reviews
Overall
8.2
Boarding
8.3
Comfort
7.9
Crew
8.5
Entertainment
7.0
Food
7.3
PHX
MSP
Excellent 8.0

It was nice

DCA
MSP
Poor 0.0

We boarded the plane and were all settled in when they discovered an issue with the wing. We all deplaned one hour after we were supposed to take off and got in lines to be re-booked on another flight the next day (10am, not an option for us). Luckily, my partner found a delta flight going out that night so we booked the flight while waiting in the sun country line and ran, just barely making it.

MSP
SFO
Mediocre 2.0

No communication

Our flight was moved to three different gates and delayed, incrementally, by over 4 hours, without even an overhead announcement/update. I realize that while frustrating, delays are inevitable, but communication can go along way! Return flight was only delayed about 1.5 hrs.

DEN
MSP
Good 7.6

I always love to fly Sun Country. In flight everything has always been awesome.

I went to the counter in Denver to ask the gate agent where my seat was (middle or aisle) and if I could get it moved. The agent said he would help me once he was done setting up. I sat there for 15-20 minutes while he moved the ropes around (for the line), set up his mouse, found a mouse pad and set that up, found signs to put up at the desk and made sure they were in the right spot. He was on the computer for a good 5 minutes writing notes on a paper. I waited patiently, but was getting really annoyed that he couldn't look up my seat quick and then go back to setting his desk up. Finally, he took my ticket, did not apologize for my wait or thanked me for being patient, and just said he had no seats. I waited 20-minutes, which then I didn't have time to eat before we boarded the plane. I was extremely disappointed in him telling me he'd help, did not communicate that I needed to wait for him for that long and then wasn't nice enough to thank me for waiting. Incredibly disappointed in this service.

DEN
MSP
Good 7.5

No snacks for free

Sun, 10 Dec
BOS
SFO
6h 48m
Wed, 13 Dec
SFO
BOS
7h 40m
£149
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Tue, 12 Dec
BOS
SFO
8h 25m
Wed, 13 Dec
SFO
BOS
7h 40m
£135
Trip: 2 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 7150 reviews
Overall
8.2
Boarding
8.3
Comfort
7.9
Crew
8.5
Entertainment
7.0
Food
7.3
MSP
SFO
Mediocre 2.0

No communication

Our flight was moved to three different gates and delayed, incrementally, by over 4 hours, without even an overhead announcement/update. I realize that while frustrating, delays are inevitable, but communication can go along way! Return flight was only delayed about 1.5 hrs.

PSP
MSP
OK 5.0

Seat position

Didn’t like landing Way to hard on breaks(lol) everyone in my row plus others pitched forward aggressively

MSP
SEA
Excellent 10.0

Sun Country is fantastic for flying to MN and the best part is that you don’t have to fly in to the main big terminal, which is something I really enjoy. Flight service was quick and clean and I was very comfortable on the flight.

DCA
MSP
Poor 0.0

We boarded the plane and were all settled in when they discovered an issue with the wing. We all deplaned one hour after we were supposed to take off and got in lines to be re-booked on another flight the next day (10am, not an option for us). Luckily, my partner found a delta flight going out that night so we booked the flight while waiting in the sun country line and ran, just barely making it.

DEN
MSP
Good 7.6

I always love to fly Sun Country. In flight everything has always been awesome.

I went to the counter in Denver to ask the gate agent where my seat was (middle or aisle) and if I could get it moved. The agent said he would help me once he was done setting up. I sat there for 15-20 minutes while he moved the ropes around (for the line), set up his mouse, found a mouse pad and set that up, found signs to put up at the desk and made sure they were in the right spot. He was on the computer for a good 5 minutes writing notes on a paper. I waited patiently, but was getting really annoyed that he couldn't look up my seat quick and then go back to setting his desk up. Finally, he took my ticket, did not apologize for my wait or thanked me for being patient, and just said he had no seats. I waited 20-minutes, which then I didn't have time to eat before we boarded the plane. I was extremely disappointed in him telling me he'd help, did not communicate that I needed to wait for him for that long and then wasn't nice enough to thank me for waiting. Incredibly disappointed in this service.

Mon, 11 Dec
BOS
SFO
6h 38m
Tue, 12 Dec
SFO
BOS
7h 40m
£149
Trip: 2 days
Overall 0.0 Poor
Based on 0 reviews
Sat, 2 Dec
BOS
SFO
6h 51m
Tue, 5 Dec
SFO
BOS
5h 30m
£179
Trip: 4 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 42 reviews
Overall
8.2
Boarding
8.2
Comfort
8.3
Crew
8.5
Entertainment
8.0
Food
7.8
BOS
SFO
Good 7.6

Had to check basic backpack at the last minute because no overhead space. Unclear instructions as to where to pick it up on the SFO end, leading to further delays getting out of the airport. (Already landing close to 2am at the beginning of a work week - minutes count.)

BOS
SFO
Excellent 9.3

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

Cold not find a power outlet.

BOS
SFO
Excellent 9.0

Direct TV offered excellent list of channels.

Movie list is outdated.

BOS
SFO
Good 7.0

Nice legroom, profession, friendly staff

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

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.

Thu, 23 Nov
BOS
SFO
6h 51m
Wed, 29 Nov
SFO
BOS
7h 40m
£154
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Wed, 29 Nov
BOS
SFO
8h 25m
Sun, 3 Dec
SFO
BOS
7h 40m
£142
Trip: 5 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 7150 reviews
Overall
8.2
Boarding
8.3
Comfort
7.9
Crew
8.5
Entertainment
7.0
Food
7.3
MSP
LAX
Excellent 10.0

Identification was stolen in Schofield, WI Unable to get back to Minneapolis for the flight. Thanks, Kyle

MSP
SEA
Excellent 10.0

Sun Country is fantastic for flying to MN and the best part is that you don’t have to fly in to the main big terminal, which is something I really enjoy. Flight service was quick and clean and I was very comfortable on the flight.

DFW
CUN
Excellent 8.6

Timely check in, friendly customer service, good crew, no issues.

They board by row number, but start with first rows first. Makes for slower boarding (though faster than most airlines).

DEN
MSP
Good 7.6

I always love to fly Sun Country. In flight everything has always been awesome.

I went to the counter in Denver to ask the gate agent where my seat was (middle or aisle) and if I could get it moved. The agent said he would help me once he was done setting up. I sat there for 15-20 minutes while he moved the ropes around (for the line), set up his mouse, found a mouse pad and set that up, found signs to put up at the desk and made sure they were in the right spot. He was on the computer for a good 5 minutes writing notes on a paper. I waited patiently, but was getting really annoyed that he couldn't look up my seat quick and then go back to setting his desk up. Finally, he took my ticket, did not apologize for my wait or thanked me for being patient, and just said he had no seats. I waited 20-minutes, which then I didn't have time to eat before we boarded the plane. I was extremely disappointed in him telling me he'd help, did not communicate that I needed to wait for him for that long and then wasn't nice enough to thank me for waiting. Incredibly disappointed in this service.

PSP
MSP
OK 5.0

Seat position

Didn’t like landing Way to hard on breaks(lol) everyone in my row plus others pitched forward aggressively

Sat, 2 Dec
BOS
SFO
6h 51m
Tue, 5 Dec
SFO
BOS
5h 30m
£179
Trip: 4 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 42 reviews
Overall
8.2
Boarding
8.2
Comfort
8.3
Crew
8.5
Entertainment
8.0
Food
7.8
BOS
SFO
Good 7.6

Had to check basic backpack at the last minute because no overhead space. Unclear instructions as to where to pick it up on the SFO end, leading to further delays getting out of the airport. (Already landing close to 2am at the beginning of a work week - minutes count.)

BOS
SFO
Excellent 9.3

Jet blue is ahead of the rest. Free WiFi, snacks, and drinks!

Entertainment hiccups meant that I wasn't able to listen to the radio.

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
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 9.3

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

Cold not find a power outlet.

Fri, 1 Dec
BOS
SFO
8h 20m
Wed, 6 Dec
SFO
BOS
7h 40m
£142
Trip: 6 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 7150 reviews
Overall
8.2
Boarding
8.3
Comfort
7.9
Crew
8.5
Entertainment
7.0
Food
7.3
DEN
MSP
Good 7.6

I always love to fly Sun Country. In flight everything has always been awesome.

I went to the counter in Denver to ask the gate agent where my seat was (middle or aisle) and if I could get it moved. The agent said he would help me once he was done setting up. I sat there for 15-20 minutes while he moved the ropes around (for the line), set up his mouse, found a mouse pad and set that up, found signs to put up at the desk and made sure they were in the right spot. He was on the computer for a good 5 minutes writing notes on a paper. I waited patiently, but was getting really annoyed that he couldn't look up my seat quick and then go back to setting his desk up. Finally, he took my ticket, did not apologize for my wait or thanked me for being patient, and just said he had no seats. I waited 20-minutes, which then I didn't have time to eat before we boarded the plane. I was extremely disappointed in him telling me he'd help, did not communicate that I needed to wait for him for that long and then wasn't nice enough to thank me for waiting. Incredibly disappointed in this service.

PHX
MSP
Excellent 8.0

It was nice

MSP
LAX
Excellent 10.0

Identification was stolen in Schofield, WI Unable to get back to Minneapolis for the flight. Thanks, Kyle

MSP
LAS
Excellent 10.0

Flight and ticket staff very friendly and accommodating

Everything was perfect

PSP
MSP
OK 5.0

Seat position

Didn’t like landing Way to hard on breaks(lol) everyone in my row plus others pitched forward aggressively

Wed, 29 Nov
BOS
SFO
8h 25m
Tue, 5 Dec
SFO
BOS
5h 30m
£157
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Mon, 4 Dec
BOS
SFO
8h 25m
Wed, 6 Dec
SFO
BOS
7h 40m
£142
Trip: 3 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 7150 reviews
Overall
8.2
Boarding
8.3
Comfort
7.9
Crew
8.5
Entertainment
7.0
Food
7.3
MSP
LAS
OK 4.0

We ran into a combination of traffic, parking, and other issues that drove us to arrive at our check-in at 7pm for a 7:40pm flight. We were not able to check-in given the 45 min rule. NO WHERE in our email did it say there was this rule nor were we prompted or told to check-in prior to our flight online. There's no suncountry app for check-in that we could find (only a visa one). We booked through priceline.The flight hadn't even started boarding and we were not allowed to check-in. We were re-booked on a flight that left two hours later, but that flight was delayed 3 hours. The whole thing essentially took one full night of paid hotel and fun in Vegas away costing us over $200 just in hotel plus we spent an extra 5 hours in an airport that didn't have a bar open past 9pm.

DEN
MSP
Good 7.5

No snacks for free

MSP
SEA
Excellent 10.0

Sun Country is fantastic for flying to MN and the best part is that you don’t have to fly in to the main big terminal, which is something I really enjoy. Flight service was quick and clean and I was very comfortable on the flight.

PHX
MSP
Excellent 8.0

It was nice

MSP
LAX
Excellent 10.0

Identification was stolen in Schofield, WI Unable to get back to Minneapolis for the flight. Thanks, Kyle

Sat, 2 Dec
BOS
SFO
6h 26m
Wed, 13 Dec
SFO
BOS
7h 40m
£157
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Mon, 11 Dec
BOS
SFO
6h 51m
Tue, 9 Jan
SFO
BOS
5h 30m
£191
Trip: 30 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 42 reviews
Overall
8.2
Boarding
8.2
Comfort
8.3
Crew
8.5
Entertainment
8.0
Food
7.8
BOS
SFO
Excellent 9.3

Jet blue is ahead of the rest. Free WiFi, snacks, and drinks!

Entertainment hiccups meant that I wasn't able to listen to the radio.

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 9.0

Direct TV offered excellent list of channels.

Movie list is outdated.

BOS
SFO
Good 7.6

Had to check basic backpack at the last minute because no overhead space. Unclear instructions as to where to pick it up on the SFO end, leading to further delays getting out of the airport. (Already landing close to 2am at the beginning of a work week - minutes count.)

BOS
SFO
Good 7.0

Nice legroom, profession, friendly staff

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

Wed, 6 Dec
BOS
SFO
8h 20m
Mon, 11 Dec
SFO
BOS
7h 40m
£142
Trip: 6 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 7150 reviews
Overall
8.2
Boarding
8.3
Comfort
7.9
Crew
8.5
Entertainment
7.0
Food
7.3
MSP
LAX
Excellent 10.0

Identification was stolen in Schofield, WI Unable to get back to Minneapolis for the flight. Thanks, Kyle

MSP
SFO
Mediocre 2.0

No communication

Our flight was moved to three different gates and delayed, incrementally, by over 4 hours, without even an overhead announcement/update. I realize that while frustrating, delays are inevitable, but communication can go along way! Return flight was only delayed about 1.5 hrs.

PSP
MSP
OK 5.0

Seat position

Didn’t like landing Way to hard on breaks(lol) everyone in my row plus others pitched forward aggressively

MSP
LAS
Excellent 10.0

Flight and ticket staff very friendly and accommodating

Everything was perfect

DCA
MSP
Poor 0.0

We boarded the plane and were all settled in when they discovered an issue with the wing. We all deplaned one hour after we were supposed to take off and got in lines to be re-booked on another flight the next day (10am, not an option for us). Luckily, my partner found a delta flight going out that night so we booked the flight while waiting in the sun country line and ran, just barely making it.

Tue, 5 Dec
BOS
SFO
6h 38m
Tue, 12 Dec
SFO
BOS
7h 40m
£157
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Fri, 8 Dec
BOS
SFO
8h 20m
Wed, 13 Dec
SFO
BOS
7h 40m
£142
Trip: 6 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 7150 reviews
Overall
8.2
Boarding
8.3
Comfort
7.9
Crew
8.5
Entertainment
7.0
Food
7.3
MSP
SFO
Mediocre 2.0

No communication

Our flight was moved to three different gates and delayed, incrementally, by over 4 hours, without even an overhead announcement/update. I realize that while frustrating, delays are inevitable, but communication can go along way! Return flight was only delayed about 1.5 hrs.

PDX
MSP
Excellent 10.0

First timers on Sun Country and we will definitely use them again, all around class act! Thank You

DEN
MSP
Good 7.5

No snacks for free

PHX
MSP
Excellent 8.0

It was nice

PSP
MSP
OK 5.0

Seat position

Didn’t like landing Way to hard on breaks(lol) everyone in my row plus others pitched forward aggressively

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