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£104 Cheap Flights from San Francisco (SFO) to Boston (BOS)

View £104 flight on Mon, 2 Nov 2026Opens in a new window

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 £104 for one-way flights and £207 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Sat, 24 Oct - Tue, 27 Oct
SFO
San Francisco
BOS
Boston
£207 Return, found 2 days ago
£207
Return
found 2 days ago
Select JetBlue Airways flight, departing Sat, 24 Oct from San Francisco to Boston, returning Tue, 27 Oct, priced at £207 found 2 days ago
JetBlue Airways
Mon, 14 Sept - Fri, 18 Sept
SFO
San Francisco
BOS
Boston
£208 Return, found 1 day ago
£208
Return
found 1 day ago
Select JetBlue Airways flight, departing Mon, 14 Sept from San Francisco to Boston, returning Fri, 18 Sept, priced at £208 found 1 day ago
JetBlue Airways
Mon, 21 Sept - Tue, 29 Sept
SFO
San Francisco
BOS
Boston
£212 Return, found 2 days ago
£212
Return
found 2 days ago
Select JetBlue Airways flight, departing Mon, 21 Sept from San Francisco to Boston, returning Tue, 29 Sept, priced at £212 found 2 days ago
JetBlue Airways
Sat, 12 Sept - Tue, 15 Sept
SFO
San Francisco
BOS
Boston
£213 Return, found 4 days ago
£213
Return
found 4 days ago
Select JetBlue Airways flight, departing Sat, 12 Sept from San Francisco to Boston, returning Tue, 15 Sept, priced at £213 found 4 days ago
JetBlue Airways
Wed, 23 Sept - Thu, 24 Sept
SFO
San Francisco
BOS
Boston
£214 Return, found 4 days ago
£214
Return
found 4 days ago
Select JetBlue Airways flight, departing Wed, 23 Sept from San Francisco to Boston, returning Thu, 24 Sept, priced at £214 found 4 days ago
JetBlue Airways
Mon, 14 Sept - Tue, 29 Sept
SFO
San Francisco
BOS
Boston
£216 Return, found 1 day ago
£216
Return
found 1 day ago
Select JetBlue Airways flight, departing Mon, 14 Sept from San Francisco to Boston, returning Tue, 29 Sept, priced at £216 found 1 day ago
Alaska Airlines
Fri, 11 Sept - Sat, 12 Sept
SFO
San Francisco
BOS
Boston
£226 Return, found 1 day ago
£226
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 11 Sept from San Francisco to Boston, returning Sat, 12 Sept, priced at £226 found 1 day ago
Delta
Sat, 12 Sept - Tue, 15 Sept
SFO
San Francisco
BOS
Boston
£237 Return, found 1 day ago
£237
Return
found 1 day ago
Select Delta flight, departing Sat, 12 Sept from San Francisco to Boston, returning Tue, 15 Sept, priced at £237 found 1 day ago
United
Sat, 8 Aug - Sun, 9 Aug
SFO
San Francisco
BOS
Boston
£518 Return, found 1 day ago
£518
Return
found 1 day ago
Select United flight, departing Sat, 8 Aug from San Francisco to Boston, returning Sun, 9 Aug, priced at £518 found 1 day ago
American Airlines
Thu, 6 Aug - Fri, 7 Aug
SFO
San Francisco
BOS
Boston
£645 Return, found 1 day ago
£645
Return
found 1 day ago
Select American Airlines flight, departing Thu, 6 Aug from San Francisco to Boston, returning Fri, 7 Aug, priced at £645 found 1 day 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 £268
BOS
Logan Intl.
CheapestClosest
Average driving time to city centre7 min
Flights from £268

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 does a flight from San Francisco, CA (SFO) to Boston, MA (BOS) cost?
You can find one-way and return flights from San Francisco, CA (SFO) to Boston, MA (BOS) with Expedia. 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 our cheapest fares first, and use the Price Tracking tool to receive alerts when SFO to BOS ticket fares go up or down.
What is the cheapest month to fly from San Francisco, CA (SFO) to Boston, MA (BOS)?
The cheapest months to fly from San Francisco, CA (SFO) to Boston, MA (BOS) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from San Francisco, CA (SFO) to Boston, MA (BOS)?
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 traveler to traveler. If you like to fly early, JetBlue Airways offers early morning flights. If price is the most important factor, JetBlue Airways typically offers the lowest fares. United offers the most daily flights from SFO to BOS, 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.)?
The cheapest months to fly from San Francisco International Airport (SFO) to Boston Logan International Airport (BOS) are typically September and February, with average return flights around £245. However, the most popular months for this route are June and December, meaning you'll find plenty of flight options during those times. If you're looking for the best balance of good value and a wide selection of flights, consider travelling in September, as it offers lower prices and still has a good range of flight choices.
How many flights per day from San Francisco, CA (SFO-San Francisco Intl.) to Boston, MA (BOS-Logan Intl.)?
You'll find approximately 18 nonstop flights per day from San Francisco International Airport (SFO) to Boston Logan International (BOS). For even more choices, look at flights that include layovers, as there are around 232 connecting flights per day. Some common connection points include Los Angeles International (LAX), O'Hare International (ORD), and John F. Kennedy International (JFK).
What is the earliest flight from San Francisco, CA (SFO) to Boston, MA (BOS)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from San Francisco, CA (SFO) to Boston, MA (BOS). To compare more early flights, use 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 find the most flights from San Francisco International Airport (SFO) to Logan International Airport (BOS) on a Thursday, with around 152 flights available. This gives you plenty of options to choose from for your travel plans. Major airlines on this route include United, Alaska Airlines, and American Airlines. Flight schedules are fairly consistent throughout the week, so you'll have a good selection of flights no matter which day you choose to fly.
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 early morning, from 6am to 9am. Many major carriers, including American Airlines, Delta and United, offer flights during this window. Many travellers prefer these times as it allows them to arrive at their destination early in the day, giving them more time to settle in or start their activities.
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 4,342 kilometers. 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.)?
Yes, you can fly business class or first class between SFO and BOS. Airlines that offer business class service on this route include:
  • JetBlue Airways
  • Frontier Airlines
  • Delta
  • American Airlines
First class cabins are available on:
  • Alaska Airlines
  • United
  • Delta
  • American Airlines
How do I earn miles on a San Francisco, CA (SFO) to Boston, MA (BOS) flight with Expedia?
It's easy to earn miles on a San Francisco, CA (SFO) to Boston, MA (BOS) 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.
Is it cheaper to buy a plane ticket from San Francisco, CA (SFO) to Boston, MA (BOS) at the last minute?
Typically, booking a last minute flight from San Francisco, CA (SFO) to Boston, MA (BOS) 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) to Boston, MA (BOS) flight and hotel package?
Securing a San Francisco, CA (SFO) to Boston, MA (BOS) 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, American Airlines, Delta, JetBlue Airways, United
Return price
£207
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 £207 and range up to £645.  

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 October, 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.