Question 1

How long does a flight from Boston to San Francisco take?

Accepted Answer

Direct flights take on average 6h 30m to travel the 6,981 km between Boston and San Francisco. Visit our flight page for the latest deals!>/a>

Question 2

How many flights are there between Boston and San Francisco per day?

Accepted Answer

Each day, there are between 7 and 11 direct flights that take off from Boston and land in San Francisco, with an average flight time of 6h 52m. The most common departure time is 07:00 and most flights take off in the morning. Each week, there are 71 flights. The most frequent day of departure is Monday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday. Visit our flight page for the latest deals!>/a>

Question 3

How many flights are there between Boston and San Francisco per day?

Accepted Answer

Each day, there are between 7 and 11 direct flights that take off from Boston and land in San Francisco, with an average flight time of 6h 52m. The most common departure time is 07:00 and most flights take off in the morning. Each week, there are 71 flights. The most frequent day of departure is Monday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday. Visit our flight page for the latest deals!>/a>

Question 4

What is the cheapest flight from Boston to San Francisco?

Accepted Answer

In the last 3 days, the lowest price for a flight from Boston to San Francisco was $181 for a one-way ticket and $362 for a return. <a href='/flight-routes/Boston-Logan-Intl-BOS/San-Francisco-SFO'>Visit our flight page for the latest deals!>/a>

Question 5

Which airlines fly most frequently between Boston and San Francisco?

Accepted Answer

Boston and San Francisco are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (32 flights per week), JetBlue (26 flights per week), and Delta (13 flights per week). Visit our flight page for the latest deals!>/a>

Question 6

Which airlines fly most frequently between Boston and San Francisco?

Accepted Answer

Boston and San Francisco are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (32 flights per week), JetBlue (26 flights per week), and Delta (13 flights per week). Visit our flight page for the latest deals!>/a>

Question 7

Which airports will I be using when flying from Boston to San Francisco?

Accepted Answer

Boston and San Francisco are both served by 1 main airport. You will leave Boston from Boston Logan Intl and will be arriving at San Francisco. <a href='/flight-routes/Boston-Logan-Intl-BOS/San-Francisco-SFO'>Visit our flight page for the latest deals!>/a>

Question 8

What’s the earliest departure time from Boston to San Francisco?

Accepted Answer

Early birds can take the earliest flight from Boston at 05:30 and will be landing in San Francisco at 09:11.

Question 9

What’s the latest departure time from Boston to San Francisco?

Accepted Answer

If you prefer to fly at night, the latest flight from Boston to San Francisco jets off at 21:20 and lands at 00:59.

Question 10

Which airlines offer Wi-Fi service onboard planes from Boston to San Francisco?

Accepted Answer

JetBlue, Alaska Airlines, Hawaiian Airlines, Delta, and American Airlines offer inflight Wi-Fi service on the Boston to San Francisco flight route.

Question 11

Which aircraft models fly most regularly from Boston to San Francisco?

Accepted Answer

The Airbus A321neo is the aircraft model that flies most regularly on the Boston to San Francisco flight route.

Question 12

On which days can I fly direct from Boston to San Francisco?

Accepted Answer

There are direct flights from Boston to San Francisco on a daily basis.

Question 13

If my pet travels with me on my trip from Boston to San Francisco where will I be able to pick it up upon arrival?

Accepted Answer

At San Francisco Airport, pets that are traveling in the baggage compartment will be delivered at the baggage claim area. If you instead brought your pet using your airline’s cargo service, you must contact your airline directly. Each airline has its own off-site cargo office location where you can retrieve your pet after your flight.

Question 14

If I am being picked up at San Francisco Airport, where is the best place for my ride to meet me?

Accepted Answer

The airport offers a free cell phone lot that is located near the long-term parking lot. Drivers are advised to park there until your flight arrives, since there is no parking of any kind at the terminal building. The maximum waiting time allowed in the cell phone lot is sixty minutes.

Question 15

Is there a post office at San Francisco Airport?

Accepted Answer

There is a full United States Postal Branch at the airport just north of the airport, and there are mailboxes located outside each of the terminal buildings. If you are simply in need of stamps, there are stamp machines located on the Departures level of all of the terminal buildings.

Question 16

Where can I get an Uber at San Francisco International Airport?

Accepted Answer

Upon arrival at San Francisco International, you should collect all of your bags and then request your ride. Once you have requested your ride you may meet Uber Pool and Express Pool rides on level 5 of the domestic garage and all other rides, such as Uber Black and SUV, can be met at the departures level located on the second floor of the domestic terminal.

Question 17

What is the cheapest month to fly from Boston to San Francisco?

Accepted Answer

The cheapest month for flights from Boston to San Francisco is September, where tickets cost $474 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $613 and $567 respectively.

Question 18

What is the cheapest month to fly from Boston to San Francisco?

Accepted Answer

The cheapest month for flights from Boston to San Francisco is September, where tickets cost $474 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $613 and $567 respectively.

Question 19

How does KAYAK find such low prices on flights from Boston to San Francisco?

Accepted Answer

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to San Francisco. <a href='/flight-routes/Boston-Logan-Intl-BOS/San-Francisco-SFO'>Visit our flight page for the latest deals!>/a>

Question 20

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to San Francisco?

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Boston is likely to change within 7 days, so travelers know whether to wait or book now. <a href='/flight-routes/Boston-Logan-Intl-BOS/San-Francisco-SFO'>Visit our flight page for the latest deals!>/a>

Question 21

What is the Hacker Fare option on flights from Boston to San Francisco?

Accepted Answer

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to San Francisco with an airline and back to Boston with another airline. <a href='/flight-routes/Boston-Logan-Intl-BOS/San-Francisco-SFO'>Visit our flight page for the latest deals!>/a>

Question 22

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to San Francisco?

Accepted Answer

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. <a href='/flight-routes/Boston-Logan-Intl-BOS/San-Francisco-SFO'>Visit our flight page for the latest deals!>/a>

Question 23

How often are flights from Boston to San Francisco delayed?

Accepted Answer

Weekly flights between Boston and San Francisco historically see delays in approximately 16% of cases, with the average delay over the past year being 173 minutes.

Question 24

Which airline has the best punctuality record on Boston to San Francisco flights?

Accepted Answer

Based on our data, United Airlines have experienced the fewest delays on this route in the past 12 months, with only about 14% of their flights encountering any delays.

Question 25

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Statistically, Tuesday is the day of the week with the fewest delays on this flight route, while Sunday has typically experienced more delays than other days.

Question 26

What is the most punctual flight time for Boston to San Francisco flights?

Accepted Answer

Typically, flights leaving in the morning tend to face fewer delays, whereas flights in the evening have historically encountered delays more often.

Question 27

Which cabin class options are there for flights between Boston and San Francisco?

Accepted Answer

There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 28

Which cabin class options are there for flights between Boston and San Francisco?

Accepted Answer

There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 29

Which airlines provide the cheapest flights from Boston to San Francisco?

Accepted Answer

In the past 3 days, the cheapest return tickets from Boston to San Francisco were found on Alaska Airlines ($362) and Delta ($376).

Question 30

Which airlines provide the cheapest flights from Boston to San Francisco?

Accepted Answer

In the past 3 days, the cheapest return tickets from Boston to San Francisco were found on Alaska Airlines ($362) and Delta ($376).

Question 31

How far in advance should I book a flight from Boston to San Francisco?

Accepted Answer

To get a below average price on the flight from Boston to San Francisco, you should book around 4 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Question 32

How far in advance should I book a flight from Boston to San Francisco?

Accepted Answer

To get a below average price on the flight from Boston to San Francisco, you should book around 4 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Low season	January
High season	April
Cheapest flight	$181

BOS - SFO

$181 Find Cheap Flights from Boston to San Francisco

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Everything you should know

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

Recent return flight deals from Boston to San Francisco

Recent one-way flight deals from Boston to San Francisco

Recent last minute flight deals from Boston to San Francisco

Recent direct flight deals from Boston to San Francisco

KAYAK's insights & trends for Boston to San Francisco flights

Get data-powered insights and trends into flights from Boston to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Boston to San Francisco?

The cheapest month for flights from Boston to San Francisco is September, where tickets cost $474 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $613 and $567 respectively.

How far in advance should I book a flight from Boston to San Francisco?

To get a below average price on the flight from Boston to San Francisco, you should book around 4 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Which airlines provide the cheapest flights from Boston to San Francisco?

In the past 3 days, the cheapest return tickets from Boston to San Francisco were found on Alaska Airlines ($362) and Delta ($376).

Which airlines fly most frequently between Boston and San Francisco?

Boston and San Francisco are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (32 flights per week), JetBlue (26 flights per week), and Delta (13 flights per week).

How often are flights from Boston to San Francisco delayed?

Weekly flights between Boston and San Francisco historically see delays in approximately 16% of cases, with the average delay over the past year being 173 minutes.

What is the most punctual flight time for Boston to San Francisco flights?

Typically, flights leaving in the morning tend to face fewer delays, whereas flights in the evening have historically encountered delays more often.

What day of the week experiences the fewest flight delays on this route?

Statistically, Tuesday is the day of the week with the fewest delays on this flight route, while Sunday has typically experienced more delays than other days.

Which airline has the best punctuality record on Boston to San Francisco flights?

Based on our data, United Airlines have experienced the fewest delays on this route in the past 12 months, with only about 14% of their flights encountering any delays.

Which cabin class options are there for flights between Boston and San Francisco?

There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How many flights are there between Boston and San Francisco per day?

How long does a flight from Boston to San Francisco take?

Direct flights take on average 6h 30m to travel the 6,981 km between Boston and San Francisco.

What’s the earliest departure time from Boston to San Francisco?

Early birds can take the earliest flight from Boston at 05:30 and will be landing in San Francisco at 09:11.

What’s the latest departure time from Boston to San Francisco?

If you prefer to fly at night, the latest flight from Boston to San Francisco jets off at 21:20 and lands at 00:59.

Good to know

When to book flights from Boston to San Francisco

Flights from Boston to San Francisco: the best tips from KAYAK users' own experiences

FAQs for booking flights from Boston to San Francisco

If my pet travels with me on my trip from Boston to San Francisco where will I be able to pick it up upon arrival?

If I am being picked up at San Francisco Airport, where is the best place for my ride to meet me?

The airport offers a free cell phone lot that is located near the long-term parking lot. Drivers are advised to park there until your flight arrives, since there is no parking of any kind at the terminal building. The maximum waiting time allowed in the cell phone lot is sixty minutes.

Is there a post office at San Francisco Airport?

There is a full United States Postal Branch at the airport just north of the airport, and there are mailboxes located outside each of the terminal buildings. If you are simply in need of stamps, there are stamp machines located on the Departures level of all of the terminal buildings.

Where can I get an Uber at San Francisco International Airport?

What is the cheapest flight from Boston to San Francisco?

In the last 3 days, the lowest price for a flight from Boston to San Francisco was $181 for a one-way ticket and $362 for a return.

Which airports will I be using when flying from Boston to San Francisco?

Boston and San Francisco are both served by 1 main airport. You will leave Boston from Boston Logan Intl and will be arriving at San Francisco.

Which airlines offer Wi-Fi service onboard planes from Boston to San Francisco?

JetBlue, Alaska Airlines, Hawaiian Airlines, Delta, and American Airlines offer inflight Wi-Fi service on the Boston to San Francisco flight route.

Which aircraft models fly most regularly from Boston to San Francisco?

The Airbus A321neo is the aircraft model that flies most regularly on the Boston to San Francisco flight route.

On which days can I fly direct from Boston to San Francisco?

There are direct flights from Boston to San Francisco on a daily basis.

How does KAYAK find such low prices on flights from Boston to San Francisco?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to San Francisco.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to San Francisco?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Boston to San Francisco?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to San Francisco with an airline and back to Boston with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to San Francisco?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to San Francisco

Prefer to fly direct from Boston Logan Intl to San Francisco?

Everything you need to know for your flight from Boston to San Francisco

Information on your arrival and departure airports

Cabin class types available on flights from Boston to San Francisco

Complete your trip to San Francisco with a hotel stay or car hire

Find direct flights to and from Boston and San Francisco

Flights to other popular destinations

Flights from domestic origins to San Francisco

Choose which airport to fly into in San FranciscoSan Francisco

Find deals for your return flight