Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from San Francisco to Boston
The cheapest flights right now
San Francisco – Boston
Outbound – Nov 5, 2026
direct
5h 35m Return – Nov 11, 2026
direct
6h 44m $340
3 days ago
San Francisco – Boston
Outbound – Dec 4, 2026
direct
5h 34m Return – Dec 10, 2026
direct
6h 46m $345
2 days ago
San Francisco – Boston
Outbound – Nov 5, 2026
direct
5h 45m Return – Nov 11, 2026
direct
6h 44m $341
3 days ago
San Francisco – Boston
Outbound – Nov 7, 2026
direct
5h 31m Return – Nov 13, 2026
direct
6h 44m $369
yesterday
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$172
Average price of a round trip
$352
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
5h54
A flight from San Francisco to Boston takes on average 5h54.
Best time
March
According to user searches, the ideal month to go to Boston is March.
Tips for finding a cheap flight from San Francisco to Boston
Check out our tips for booking your flight to Boston (USA) from San Francisco (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is December, with an average flight ticket price of $181 (calculation over the last two years). The most touristic season corresponds to the months of October, September and October.
For the cheapest flights, it is advisable to buy your ticket at least 79 days before the departure date.
The airline offering the cheapest flight tickets is Frontier Airlines. A ticket from the airline Frontier Airlines to Boston costs on average $329.
The airlines that offer the most flights are JetBlue, United Airlines and JetBlue.
Price of flight tickets from San Francisco to Boston
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $172 to $716
- The average price of a flight ticket is about $352
- Prices are lowest for stays in the month of December
- The month in which booking a ticket is cheaper is: December
info departure city :
San Francisco, USA
airport :
San Francisco International Airport (SFO)
local time :
San Francisco is a city in the country USA, the time zone is [[timezone]]. In San Francisco, it is currently {fromLocalTime}, the temperature is on average 20°C, with a minimum of 18°C and a maximum of 25°C.
The city of San Francisco has 1 airport(s): San Francisco
destination info :
Boston, USA
airport :
Boston-Logan International Airport (BOS)
local time :
Boston is in the country USA, the time zone is [[timezone]]. In Boston, it is currently {toLocalTime}, the temperature is on average 15°C, with a minimum of 10°C and a maximum of 19°C.
The city of Boston has 1 airport(s): Boston-Logan
Useful info about Boston
What is the least touristic period to go to Boston?
If you want to visit Boston during the least touristic period, choose the month of March.
What is the most popular time to travel to Boston?
In Boston, the most popular month is October. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from San Francisco to Boston?
According to our data, it is recommended to book your flight 79 days before your departure. If you book your flight ticket 12 weeks before your departure, you may find a price below average. The cheapest day to book a flight from San Francisco to Boston is Thursday.
What are the arrival and destination airports when traveling between San Francisco and Boston?
When you leave, you can leave from San Francisco, and you will arrive at Boston-Logan.
How to reach San Francisco airport from the city centre?
This information is not available at this time.
Are there other means of transportation to go from San Francisco to Boston?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between San Francisco and Boston?
In summer, the average temperature is 22°C in Boston and 17°C in San Francisco. The average rainfall in summer is 106 mm in Boston and 2 mm in San Francisco. In summer, it is warmer in Boston and it rains less in San Francisco. In winter, it is colder in San Francisco and it rains more in Boston.
