£103 Cheap Flights from San Francisco (SFO) to Boston (BOS)

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Flight 1

Popular airlines from San Francisco International Airport (SFO) to Logan International Airport (BOS)

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

Prices were available within the past 7 days and start at £103 for one-way flights and £204 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, 27 May - Wed, 10 Jun
SFO
San Francisco
BOS
Boston
£204 Return, found 5 days ago
£204
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 27 May from San Francisco to Boston, returning Wed, 10 Jun, priced at £204 found 5 days ago
Alaska Airlines
Tue, 19 May - Wed, 27 May
SFO
San Francisco
BOS
Boston
£213 Return, found 1 day ago
£213
Return
found 1 day ago
Select Alaska Airlines flight, departing Tue, 19 May from San Francisco to Boston, returning Wed, 27 May, priced at £213 found 1 day ago
Alaska Airlines
Tue, 19 May - Wed, 27 May
SFO
San Francisco
BOS
Boston
£219 Return, found 1 day ago
£219
Return
found 1 day ago
Select Alaska Airlines flight, departing Tue, 19 May from San Francisco to Boston, returning Wed, 27 May, priced at £219 found 1 day ago
JetBlue Airways
Sat, 30 May - Sat, 6 Jun
SFO
San Francisco
BOS
Boston
£220 Return, found 3 days ago
£220
Return
found 3 days ago
Select JetBlue Airways flight, departing Sat, 30 May from San Francisco to Boston, returning Sat, 6 Jun, priced at £220 found 3 days ago
Alaska Airlines
Thu, 28 May - Tue, 2 Jun
SFO
San Francisco
BOS
Boston
£221 Return, found 3 days ago
£221
Return
found 3 days ago
Select Alaska Airlines flight, departing Thu, 28 May from San Francisco to Boston, returning Tue, 2 Jun, priced at £221 found 3 days ago
Alaska Airlines
Sun, 24 May - Tue, 2 Jun
SFO
San Francisco
BOS
Boston
£222 Return, found 4 days ago
£222
Return
found 4 days ago
Select Alaska Airlines flight, departing Sun, 24 May from San Francisco to Boston, returning Tue, 2 Jun, priced at £222 found 4 days ago
Alaska Airlines
Sun, 24 May - Tue, 2 Jun
SFO
San Francisco
BOS
Boston
£223 Return, found 3 days ago
£223
Return
found 3 days ago
Select Alaska Airlines flight, departing Sun, 24 May from San Francisco to Boston, returning Tue, 2 Jun, priced at £223 found 3 days ago
Alaska Airlines
Wed, 27 May - Wed, 3 Jun
SFO
San Francisco
BOS
Boston
£225 Return, found 3 days ago
£225
Return
found 3 days ago
Select Alaska Airlines flight, departing Wed, 27 May from San Francisco to Boston, returning Wed, 3 Jun, priced at £225 found 3 days ago
American Airlines
Wed, 27 May - Sat, 30 May
SFO
San Francisco
BOS
Boston
£233 Return, found 4 days ago
£233
Return
found 4 days ago
Select American Airlines flight, departing Wed, 27 May from San Francisco to Boston, returning Sat, 30 May, priced at £233 found 4 days ago
Delta
Thu, 11 Jun - Sat, 4 Jul
SFO
San Francisco
BOS
Boston
£338 Return, found 3 days ago
£338
Return
found 3 days ago
Select Delta flight, departing Thu, 11 Jun from San Francisco to Boston, returning Sat, 4 Jul, priced at £338 found 3 days ago

Alternative airports near Boston

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Logan Intl. BOS. Cheapest and Closest option available. Average driving time to city centre is 7 minutes. Flights from £237
BOS
Logan Intl.
CheapestClosest
Average driving time to city centre7 min
Flights from £237

Find the cheapest month to fly from San Francisco (SFO) to Boston (BOS)

April is typically the cheapest month to fly

From £140 - £299 per traveller.

Frequently asked questions

How much is a flight from San Francisco Intl. Airport (SFO) to Logan Intl. Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip flight from SFO to BOS was £204. Fares this cheap don't wait forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from San Francisco Airport to BOS?
Every air carrier has its own set of terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.
How do I find cheap flights from San Francisco Intl. Airport (SFO) to Logan Intl. Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SFO to Logan Intl. Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from San Francisco Airport to BOS?
With around 4,300 kilometres separating San Francisco Airport and Logan Intl. Airport (BOS), your flight will be a long one. Pack wisely and make your trip more comfortable. Simple things like warm clothing and a quality neck pillow can make a massive difference.
Which airlines fly direct from San Francisco Intl. Airport (SFO) to Logan Intl. Airport?
Have a look at the deals on offer with these top carriers and book your ticket from San Francisco Airport to Logan Intl. Airport (BOS) today:

  • JetBlue Airways - (B6) with 143 monthly flights
  • United Airlines - (UA) with 121 monthly flights
  • Delta Air Lines - (DL) with 56 monthly flights
  • Alaska Airlines - (AS) with 30 monthly flights

Are San Francisco Intl. Airport (SFO) to BOS flight tickets cheaper when they're purchased at the last minute?
Booking your trip from San Francisco Airport to BOS last minute could be your ticket to a cheap deal. However, it could end up costing you a whole lot more! If you'd prefer not to take the risk, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to 12 months in advance. If your preferred air carrier hasn't released tickets yet, check back frequently as deals are updated on Expedia all the time.

Frequently asked questions

How much does a flight from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.) cost?
One-way flights typically cost between £138 and £717 and return flights often range between £399 and £1,437. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
What is the cheapest month to fly from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.)?
September is typically the cheapest month to fly from San Francisco International Airport (SFO) to Logan International Airport (BOS), with average return fares of approximately £245. This is about 15% lower than the average price throughout the year. September often sees lower prices as the summer travel rush ends and before the holiday season begins, leading to reduced demand. Other cheap months to fly from San Francisco (SFO) to Boston (BOS) include January and February.
Which airlines fly direct from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.)?
Enter SFO to BOS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.)?
To find a cheap flight from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.)?
The best airline to fly with from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.) will differ from traveller to traveller. If you like to fly early, B6 offers early morning flights. If price is the most important factor, B6 typically offers the lowest fares. UA offers the most daily flights from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.)?
When looking for the best time to fly from San Francisco International Airport (SFO) to Logan International Airport (BOS), it's a balance between price and popularity. Based on booking data from the past year, you'll find the cheapest flights in September and February, with average return fares around £245. While these months offer great value, June and December are the most popular times to travel, meaning you'll have plenty of flight options to choose from. Consider September for a good balance of lower prices and potentially still pleasant weather.
How many flights per day from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.)?
There are approximately 17 nonstop flights per day from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.). For even more choice, look at flights that include layovers. You'll find around 243 connecting flights per day. Some common connection points include Los Angeles Intl. (LAX), O'Hare Intl. (ORD), and Seattle - Tacoma Intl. (SEA).
What is the earliest flight from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.)?
The earliest flight from San Francisco Intl. (SFO) to Logan Intl. (BOS) typically departs at approximately 12:05 AM local time, operated by Delta. This is a seasonal service active in May and June. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.)?
You'll typically find the most flights from San Francisco International Airport (SFO) to Logan International Airport (BOS) on a Thursday, with around 143 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United Airlines, Alaska Airlines, and American Airlines. Flight options are notably more abundant on Thursdays compared to other days of the week.
What are the most popular departure times for flights from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.)?
The most popular departure times for flights from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.) are in the morning, from 6am to 9am. About 28% of passengers prefer this time. Many major carriers, including American Airlines, Delta and United, offer flights during this window. This timing works well because it allows you to get an early start on your travel day and arrive at your destination with plenty of time left.
How long does it take to fly from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.)?
Direct flights from SFO to BOS usually take about 5 hours 50 minutes, traveling roughly 2,698 miles. If you opt for a connecting flight, expect to add around 2 hours 30 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.)?
Select the "Business class" and "First class" filters when looking for SFO to BOS flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.) flight with Expedia?
It's easy to earn miles on a San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Boston from San Francisco Intl. (SFO)?
If you're planning to travel to Boston from San Francisco Intl. (SFO), you can fly directly into Logan Intl. (BOS) Some flights may connect through major hubs like Los Angeles Intl. (LAX), Portland Intl. (PDX), San Diego Intl. (SAN) before reaching Boston. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.) at the last minute?
Typically, booking a last minute flight from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.) flight and hotel package?
Securing a San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.)?
If you booked your San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
San Francisco Intl.
Destination airport
Logan Intl.
Airlines serving
Alaska Airlines, JetBlue Airways
Return price
£204
Distance
4315 km
Average flight time
8 hours 42 mins

Book with confidence

Compare flights from San Francisco to Boston easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from San Francisco to Boston. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Logan Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from San Francisco Intl. to Logan Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from San Francisco Intl. (SFO) to Logan Intl. (BOS)

The easiest way to view the best deals on flights from San Francisco to Boston today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from San Francisco Intl. to Logan Intl. start at just £204 and range up to £338.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near San Francisco and Boston
  • booking your flight during May, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your San Francisco to Boston flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from San Francisco Intl. to Logan Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from San Francisco to Boston easily and book with confidence

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*Available to Expedia members.