Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Boston to San Francisco
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
Cheap direct flights
JetBlue flights from Boston to San Francisco
Our best JetBlue deals on Boston to San Francisco flight tickets
Alaska Airlines flights from Boston to San Francisco
Our best Alaska Airlines deals on Boston to San Francisco flight tickets
See travel insights to San Francisco from
How to get the cheapest flight ticket from Boston to San Francisco
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to San Francisco?
If you aren’t able to travel during the month of September, then book flights to San Francisco from Boston during January instead. Flights to San Francisco in January, while not as cheap as those in September, still average around $516.
What is the cheapest day to depart on your flight to San Francisco?
According to our data, Monday is the cheapest day to fly to San Francisco from Boston. The lowest ticket price found for a Monday departure recently was $0. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Boston to San Francisco for around $3,109.
What is the cheapest time of day to depart on your flight to San Francisco?
According to our data, the cheapest time of day to fly to San Francisco is in the evening. momondo users have found flights departing from Boston to San Francisco in the evening for as low as $0. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $2,275 on average. Flights to San Francisco from Boston in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest Boston Logan Intl to San Francisco flight route?
Fly from Boston Logan Intl to San Francisco for the best Boston Logan Intl - San Francisco flight prices
How far in advance should I book a flight to San Francisco?
You are more likely to see cheaper flights to San Francisco from Boston when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $564 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Boston for as low as $508 on momondo.
What cabin class options are available on Boston Logan Intl to San Francisco flights?
There are 2 cabin classes available to choose from on Boston Logan Intl to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How many flights depart from Boston to San Francisco on average per day?
38 flights are operational daily from Boston to San Francisco as of April 2025. The most popular departure time for this route is 06:00, with 48% of flights per day taking off at midday.
How many flights depart from Boston to San Francisco on average per week?
The number of flights available between Boston and San Francisco is 268 per week as of April 2025. The most frequent departure day is Thu, with 18% of weekly flights leaving on this day.
When to book flights from Boston to San Francisco
Cheap Boston to San Francisco (BOS to SFO) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Boston to San Francisco
Best price found | $186 |
|---|---|
Fastest flight time | 6h 28m |
Direct flights | Every day |
Airports in San Francisco | 1 airport |
How far is Boston Logan Intl to San Francisco by plane?
San Francisco is 4329.4 km away from Boston Logan Intl. A reasonable flight in good conditions will take 6h 28m.
When did momondo last update prices for flights from Boston Logan Intl Airport to San Francisco Airport?
Prices for flights from Boston Logan Intl Airport to San Francisco Airport refresh daily.
How old do you have to be to fly from Boston Logan Intl Airport to San Francisco Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Boston to San Francisco?
Based on momondo bookings for flights between Boston and San Francisco, the leading plane model is Airbus A321neo, making up 25.36% of the total bookings. Other popular models include Airbus A318/A319/A320/A321 with 22.76%, Boeing 737 MAX 9 with 17.00%, and Boeing 757-200 with 11.37%.
Travelling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Boston to San Francisco?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Boston to San Francisco . Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Boston to San Francisco with flexible booking policies on momondo?
Flights from Boston to San Francisco with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Boston to San Francisco?
Once you have performed a search for Boston to San Francisco flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Boston to San Francisco right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Boston to San Francisco now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Francisco and let you know when they change.