Question 1

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

Accepted Answer

Direct flights cover the 6,981 km separating San Francisco to Boston in about 5h 31m. Visit our flight page for the latest deals!>/a>

Question 2

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

Accepted Answer

Each day, there are between 11 and 15 nonstop flights that take off from San Francisco and land in Boston, with an average flight time of 5h 50m. The most common departure time is 7:00 a.m. and most flights take off in the morning. Each week, there are 97 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 San Francisco and Boston per day?

Accepted Answer

Each day, there are between 11 and 15 nonstop flights that take off from San Francisco and land in Boston, with an average flight time of 5h 50m. The most common departure time is 7:00 a.m. and most flights take off in the morning. Each week, there are 97 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 San Francisco to Boston?

Accepted Answer

In the last 3 days, the lowest price for a flight from San Francisco to Boston was C$ 125 for a one-way ticket and C$ 211 for a round-trip. <a href='/flight-routes/San-Francisco-SFO/Boston-Logan-Intl-BOS'>Visit our flight page for the latest deals!>/a>

Question 5

Which airlines fly most frequently between San Francisco and Boston?

Accepted Answer

San Francisco and Boston are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (39 flights per week), JetBlue (31 flights per week), and Delta (20 flights per week). Visit our flight page for the latest deals!>/a>

Question 6

Which airlines fly most frequently between San Francisco and Boston?

Accepted Answer

San Francisco and Boston are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (39 flights per week), JetBlue (31 flights per week), and Delta (20 flights per week). Visit our flight page for the latest deals!>/a>

Question 7

What’s the cheapest day of the week to fly from San Francisco to Boston?

Accepted Answer

If your flying dates are flexible, you should consider flying to Boston on a Sunday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from San Francisco to Boston. For your return ticket, we recommend flying on a Friday and avoiding Tuesdays for the best deals. Visit our flight page for the latest deals!>/a>

Question 8

What’s the cheapest day of the week to fly from San Francisco to Boston?

Accepted Answer

If your flying dates are flexible, you should consider flying to Boston on a Sunday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from San Francisco to Boston. For your return ticket, we recommend flying on a Friday and avoiding Tuesdays for the best deals. Visit our flight page for the latest deals!>/a>

Question 9

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

Accepted Answer

Early birds can take the earliest flight from San Francisco at 6:10 am and will be landing in Boston at 3:00 pm.

Question 10

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

Accepted Answer

If you prefer to fly at night, the latest flight from San Francisco to Boston jets off at 11:30 pm and lands at 8:17 am.

Question 11

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

Accepted Answer

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

Question 12

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

Accepted Answer

The Boeing 737 MAX 9 is the aircraft model that flies most regularly on the San Francisco to Boston flight route.

Question 13

Which airline alliances offer flights from San Francisco to Boston?

Accepted Answer

oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between San Francisco and Boston, with Star Alliance being the most commonly used for this route.

Question 14

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

Accepted Answer

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

Question 15

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

Accepted Answer

The cheapest month for flights from San Francisco to Boston is January, where tickets cost C$ 438 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is C$ 623 and C$ 607 respectively.

Question 16

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

Accepted Answer

The cheapest month for flights from San Francisco to Boston is January, where tickets cost C$ 438 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is C$ 623 and C$ 607 respectively.

Question 17

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

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 San Francisco to Boston. <a href='/flight-routes/San-Francisco-SFO/Boston-Logan-Intl-BOS'>Visit our flight page for the latest deals!>/a>

Question 18

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

Accepted Answer

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

Question 19

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

Accepted Answer

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

Question 20

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

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 Boston from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. <a href='/flight-routes/San-Francisco-SFO/Boston-Logan-Intl-BOS'>Visit our flight page for the latest deals!>/a>

Question 21

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

Accepted Answer

There are 2 cabin class options for the route. These are Business and Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 22

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

Accepted Answer

There are 2 cabin class options for the route. These are Business and Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 23

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

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from San Francisco to Boston were found on Southwest (C$ 292) and Delta (C$ 301).

Question 24

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

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from San Francisco to Boston were found on Southwest (C$ 292) and Delta (C$ 301).

Question 25

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

Accepted Answer

To get a below average price on the flight from San Francisco to Boston, you should book around 3 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Question 26

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

Accepted Answer

To get a below average price on the flight from San Francisco to Boston, you should book around 3 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Question 27

Can I save money by flying with a layover from San Francisco to Boston?

Accepted Answer

No, with an average price for the route of C$ 206, prices are generally cheapest when you fly direct.

Question 28

Can I save money by flying with a layover from San Francisco to Boston?

Accepted Answer

No, with an average price for the route of C$ 206, prices are generally cheapest when you fly direct.

Low season	January
High season	October
Cheapest flight	C$ 173

SFO - BOS

C$ 173 Find Cheap Flights from San Francisco to Boston

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

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Everything you should know

Expert advice for your flight from San Francisco to Boston

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

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

What’s the cheapest day of the week to fly from San Francisco to Boston?

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

The cheapest month for flights from San Francisco to Boston is January, where tickets cost C$ 438 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is C$ 623 and C$ 607 respectively.

Can I save money by flying with a layover from San Francisco to Boston?

No, with an average price for the route of C$ 206, prices are generally cheapest when you fly direct.

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

To get a below average price on the flight from San Francisco to Boston, you should book around 3 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

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

In the past 3 days, the cheapest round-trip tickets from San Francisco to Boston were found on Southwest (C$ 292) and Delta (C$ 301).

Which airlines fly most frequently between San Francisco and Boston?

San Francisco and Boston are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (39 flights per week), JetBlue (31 flights per week), and Delta (20 flights per week).

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

There are 2 cabin class options for the route. These are Business and 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 San Francisco and Boston per day?

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

Direct flights cover the 6,981 km separating San Francisco to Boston in about 5h 31m.

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

Early birds can take the earliest flight from San Francisco at 6:10 am and will be landing in Boston at 3:00 pm.

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

If you prefer to fly at night, the latest flight from San Francisco to Boston jets off at 11:30 pm and lands at 8:17 am.

Good to know

When to book flights from San Francisco to Boston

FAQs for booking flights from San Francisco to Boston

What is the cheapest flight from San Francisco to Boston?

In the last 3 days, the lowest price for a flight from San Francisco to Boston was C$ 125 for a one-way ticket and C$ 211 for a round-trip.

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

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

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

The Boeing 737 MAX 9 is the aircraft model that flies most regularly on the San Francisco to Boston flight route.

Which airline alliances offer flights from San Francisco to Boston?

oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between San Francisco and Boston, with Star Alliance being the most commonly used for this route.

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

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

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

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 San Francisco to Boston.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from San Francisco 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 San Francisco to Boston?

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

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

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 Boston from San Francisco 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 San Francisco to Boston

Prefer to fly direct from San Francisco to Boston?

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

Information on your arrival and departure airports

Cabin class types available on flights from San Francisco to Boston

Complete your trip to Boston with a hotel stay or car rental

Find direct flights to and from San Francisco and Boston

Flights to other popular destinations

Flights from domestic origins to Boston

Choose which airport to fly into in Boston

Find deals for your return flight