BOS - SFO

Find Cheap Flights from Boston to San Francisco

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Economy
Boston (BOS)
San Francisco
Sat 21/9
Sat 28/9
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Boston Logan Intl to San Francisco flight information

Avg. flight duration 6h 10m
Flights arrive in San Francisco
Flights depart from Boston Logan Intl
Flight price £195
Distance 2,697 miles
Airlines JetBlue, American Airlines, Alaska Airlines, Delta

Good to know

Low season:
February
Best time to beat the crowds
3%
expected price decrease
High season:
July
Most popular time to fly
14%
expected price increase
Average price:
£311
(price for this month)
Good deal:
£251
or less return trip within
3 months
of travel is a good deal

When to Book Flights from Boston to San Francisco

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

Top tips for finding a cheap flight

The cheapest flight from Boston to San Francisco was found, on average, 53 days before departure.
Book at least 1 week 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 February.
Morning departure is around 19% cheaper 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 to San Francisco Flights

How long does a flight from Boston to San Francisco take?
The average direct flight takes 6h 32m, covering a distance of 2697 miles.
How many flights are there between Boston and San Francisco?
There are 710 (direct) flights between Boston and San Francisco per week, averaging 101 per day.
Which airlines provide the cheapest flights from Boston to San Francisco?
In the past 3 days, the cheapest return tickets were found on JetBlue (£195), American Airlines (£236) and Alaska Airlines (£240).
Which airlines fly most frequently between Boston and San Francisco?
United Airlines (15 times daily), Air New Zealand (10 times daily), JetBlue (10 times daily) are the most frequent flyers on this route.
Which airports will I be using when flying from Boston to San Francisco?
When flying out of Boston you will be using Boston Logan Intl, often referred to as Boston Airport. You will be landing at San Francisco, also known as San Francisco Airport.
How does KAYAK find such low flight prices?
KAYAK processes over 2 billion travel queries annually and displays results from hundreds of airlines and third party sites, allowing it to find a variety of flight prices and options. It also displays results from 2M+ properties along with car hire, holiday packages, activities and millions of verified reviews so users can see as many available travel options as possible.
How can Hacker Fares save me money?
Hacker Fares allow you to combine one-way tickets on different airlines when it can save you money over a traditional return ticket.
Does KAYAK query more flight providers than competitors?
Yes, KAYAK has access to more data and information than online travel agencies and consistently outperforms the competition in accuracy, globally.
Does KAYAK query more flight providers than competitors?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a given destination and date is likely to change within 7 days, so travellers know whether to wait or book now.

Book cheap flights from Boston to San Francisco (return)

Airports
Origin
Boston
£195
only
£195
Destination
San Francisco
£195
only
£195
Fri, 25 Oct
BOS
Boston Logan Intl
SFO
San Francisco
6h 32m
Sun, 3 Nov
SFO
San Francisco
BOS
Boston Logan Intl
5h 30m
£195
Trip: 10 days
8.4ExcellentShow reviews
Overall 8.4 Excellent
Based on 118 reviews
Overall
8.2
Boarding
8.3
Comfort
8.3
Crew
8.6
Entertainment
7.9
Food
7.8
BOS
SFO
Excellent 10.0

Pros: Excellent service

Cons: 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 10.0

Pros: Comfortable seating, great movies, courteous service.

BOS
SFO
Good 7.0

Cons: Late take off and landing by 1 hour and sitting on tarmac forever upon arrival. JB used to be better

BOS
SFO
Excellent 10.0

Pros: Great crew. Mint experience is fantastic, actually great airline food. Better than any other domestic first class. Free internet!

BOS
SFO
Excellent 8.3

Cons: Staff was great

Wed, 11 Sep
BOS
Boston Logan Intl
SFO
San Francisco
8h 52m
Mon, 16 Sep
SFO
San Francisco
BOS
Boston Logan Intl
5h 50m
£236
Trip: 6 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 40,890 reviews
Overall
7.4
Boarding
7.5
Comfort
7.2
Crew
7.9
Entertainment
6.8
Food
6.7
DFW
LAS
Mediocre 2.0

Cons: My luggage was destroy one of my luggage

DCA
CLT
Excellent 8.6

Pros: The AA staff was incredibly nice to us. The facilities our check in at DCA that got us on faster and the staff at CLT very nicely got us on to an earlier flight. They were awesome!

Cons: The entertainment options are great but the interface is annoying and difficult to use. -connecting to the WiFi was wonky -working between the apps and browser page was annoying -rewind/fast forward controls overly sensitive

PHL
BDA
Excellent 9.0

Cons: Difficult time connecting to wifi.

DEN
CLT
Mediocre 3.3

Cons: The crew, could have paid attention to their guest. It was terrible, this flight reminds me how much I enjoy flying Southwest, instead of American Airlines. The only reason that I flew this airline, was because It was free with Points

PVD
CLT
Good 7.5

Pros: Crew was great.

Cons: Between mechanical, weather, lightning, fueling/routing delays; I have been pushed back at least 4 hours from my original arrival time at my final destination.

Thu, 21 Nov
BOS
Boston Logan Intl
SFO
San Francisco
6h 59m
Tue, 26 Nov
SFO
San Francisco
BOS
Boston Logan Intl
5h 33m
£240
Trip: 6 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 24 reviews
Overall
8.5
Boarding
8.6
Comfort
8.3
Crew
8.8
Entertainment
7.9
Food
7.9
MSO
PDX
Excellent 8.5

Pros: Flight crew were fun.

Cons: Let us know we were going to be arriving late for our connections. They should ask flyers if they are on time for their connections so they could disembark the plane first.

SFO
LAX
Excellent 8.0

Pros: Everything was good. First class meal was tasty.

Cons: There was a cat underneath my seat and meowed the entire flight keeping everyone in the plane up. Some animals should not be allowed on red-eye flights.

BOS
SFO
Good 7.3

Cons: Our flight was delayed while we waited for a crew member to fly in to cover for a FA that called in sick. Gate agents didn’t provide many updates while we waited. The were only 3 snack items for purchase available on the plane. Seat didn’t recline

AUS
SEA
Excellent 10.0

Pros: Yes the crew was amazing!

BOS
SFO
Okay 4.0

Pros: I arrived - finally (though stuck on the runway at SFO as I write this)

Cons: Crowded, chaotic boarding area & process at Boston Logan. Checked in seats manually since systems apparently down. An hour delayed (on takeoff) for no apparent reason and delayed waiting for gate on arrival. Seems to happen regularly with Alaska but not JetBlue Broken restroom - should have at the very least let coach customers use First Class restroom rather than get by with one Broken wifi - none the entire flight Limited food which ran out quickly Flight attendants trying but seem harried and confused and not very attentive

Tue, 27 Aug
BOS
Boston Logan Intl
SFO
San Francisco
6h 47m
Mon, 2 Sep
SFO
San Francisco
BOS
Boston Logan Intl
5h 44m
£577
Trip: 7 days
8.3ExcellentShow reviews
Overall 8.3 Excellent
Based on 8 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.8
Food
7.5
ROC
LGA
Mediocre 3.6

Pros: short flight

Cons: noisy plane. seems like Delta does not maintain their planes very well. flight was delayed, which made it stressful to catch connecting flight at LGA. when we were all on the plane, the pilot states that he apologizes for the wait, since we were waiting a while for take off. he said there was something wrong with the fuel system that had to get fixed but it is ok now. wow, that wasn't the right thing to say. as soon as he said that, the passengers started talking among themselves saying,,,,,,,,,,,,well, i hope it is ok now, because if it is not, we may not get to our destination! he should have rephrased that and simply said that;;;;; sorry for the delay, we were simply going through some maintenance on the plane to make sure everything is all-right, which it is, and we look forward to getting you to your destination in a few minutes! keep it simple without getting into all the details! geeeeeeeeeeeesssssssssssccccccccccchhhhhhhhh!!!!! :(

SFO
SEA
Excellent 8.0

Pros: Smooth, efficient and timely.

Cons: Seats weren’t assigned until at the gate even though checked in 18 hours before. Bag drop was horrible. No self service. Was inline for about 45 minutes.

ATL
JFK
Mediocre 2.0

Pros: 48 hours travel from Europe Thanks to sucky Delta airlines that are absolutely the most horrible company Never ever again

DTW
AVP
Mediocre 2.0

Cons: Always seem to be delayed

BOS
SFO
Good 7.0

Pros: Overall service was great.

Cons: Flight was delayed 5 hours.

*
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 and someone from our team will get back to you promptly.

^
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.
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