Question 1

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

Accepted Answer

Direct flights cover the 2,696 miles 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 7 and 11 direct flights that take off from San Francisco and land in Boston, with an average flight time of 5h 49m. The most common departure time is 16:00 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 San Francisco and Boston per day?

Accepted Answer

Each day, there are between 7 and 11 direct flights that take off from San Francisco and land in Boston, with an average flight time of 5h 49m. The most common departure time is 16:00 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 San Francisco to Boston?

Accepted Answer

In the last 3 days, the lowest price for a flight from San Francisco to Boston was £100 for a one-way ticket and £191 for a return. <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 (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 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 (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

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 Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Wednesday is the most expensive day to fly from San Francisco to Boston. For your return ticket, we recommend flying on a Friday and avoiding Saturdays 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 Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Wednesday is the most expensive day to fly from San Francisco to Boston. For your return ticket, we recommend flying on a Friday and avoiding Saturdays 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 07:00 and will be landing in Boston at 15:37.

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 23:35 and lands at 08:13.

Question 11

Which airlines fly direct between San Francisco and Boston?

Accepted Answer

There is just one airline that flies from San Francisco to Boston direct and that is Delta. The best return deal found from Delta for the route is £88.

Question 12

Which airlines fly direct between San Francisco and Boston?

Accepted Answer

There is just one airline that flies from San Francisco to Boston direct and that is Delta. The best return deal found from Delta for the route is £88.

Question 13

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

Accepted Answer

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

Question 14

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

Accepted Answer

The Airbus A318/A319/A320/A321 is the aircraft model that flies most regularly on the San Francisco to Boston flight route.

Question 15

Which airline alliances offer flights from San Francisco to Boston?

Accepted Answer

SkyTeam is the only airline alliance operating flights between San Francisco and Boston.

Question 16

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 17

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 £251 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is £348 and £322 respectively.

Question 18

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 £251 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is £348 and £322 respectively.

Question 19

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 20

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 21

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 return 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 22

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 23

How often are flights from San Francisco to Boston delayed?

Accepted Answer

Weekly flights between San Francisco and Boston 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 San Francisco to Boston flights?

Accepted Answer

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

Question 25

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

Accepted Answer

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

Question 26

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

Accepted Answer

Typically, flights leaving at night tend to face fewer delays, whereas flights in the early afternoon have historically encountered delays more often.

Question 27

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

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 San Francisco and Boston?

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 San Francisco to Boston?

Accepted Answer

In the past 3 days, the cheapest return tickets from San Francisco to Boston were found on Alaska Airlines (£191) and Delta (£199).

Question 30

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

Accepted Answer

In the past 3 days, the cheapest return tickets from San Francisco to Boston were found on Alaska Airlines (£191) and Delta (£199).

Question 31

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 4 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Question 32

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 4 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Question 33

How much is a return flight from San Francisco to Boston?

Accepted Answer

Flight prices are below average for this route right now.Flights to Boston from San Francisco usually cost between £217 and £406 in May.
The lowest price found in the past 3 days was £191 on Alaska Airlines (28 May-2 Jun).

Low season	January
High season	July
Cheapest flight	£100

SFO - BOS

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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.

How much is a return flight from San Francisco to Boston?

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 £251 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is £348 and £322 respectively.

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 4 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

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

In the past 3 days, the cheapest return tickets from San Francisco to Boston were found on Alaska Airlines (£191) and Delta (£199).

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 (32 flights per week), JetBlue (26 flights per week), and Delta (13 flights per week).

Which airlines fly direct between San Francisco and Boston?

There is just one airline that flies from San Francisco to Boston direct and that is Delta. The best return deal found from Delta for the route is £88.

How often are flights from San Francisco to Boston delayed?

Weekly flights between San Francisco and Boston 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 San Francisco to Boston flights?

Typically, flights leaving at night tend to face fewer delays, whereas flights in the early afternoon have historically encountered delays more often.

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

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

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

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

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

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 San Francisco and Boston per day?

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

Direct flights cover the 2,696 miles 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 07:00 and will be landing in Boston at 15:37.

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 23:35 and lands at 08:13.

Expert advice for your flight from San Francisco to Boston

Good to know - Cheap tickets from San Francisco to Boston

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 £100 for a one-way ticket and £191 for a return.

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

JetBlue, Alaska Airlines, American Airlines, Iberia, and Delta 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 Airbus A318/A319/A320/A321 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?

SkyTeam is the only airline alliance operating flights between San Francisco and Boston.

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 return 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?

Reviews of the top airline flying 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 hire

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