Cheap flights from Boston to San Francisco from C$ 139
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to San Francisco departing on 20/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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American Airlines flights from Boston to San Francisco
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Delta flights from Boston to San Francisco
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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?
The cheapest month to fly to San Francisco from Boston is in September. Flight prices, which tend to average around C$ 432, are often lower during this time because this is during the off-season. The month of January is another great option to travel to San Francisco, with average flight prices from Boston averaging around C$ 460.
What is the cheapest day to depart on your flight to San Francisco?
The cheapest day to depart from Boston to San Francisco is on a Monday. Travellers who choose to depart for San Francisco on a Monday will often find tickets for as low as C$ 0. On the other hand, Sunday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 2,010.
What is the cheapest time of day to depart on your flight to San Francisco?
Flying to San Francisco from Boston at noon is the least expensive time of day to depart. momondo users have found prices as low as C$ 0 when looking at flights departing at noon. In contrast, the most expensive time of day to depart to San Francisco is in the afternoon when prices are around C$ 754.
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 C$ 501 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 C$ 452 on momondo.
What cabin class options are available on Boston Logan Intl to San Francisco flights?
There are 3 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?
As of April 2025, 38 flights take off from Boston and land in San Francisco each day. The most common flight departure time for this route is 6:00a.m., with 46% of daily flights taking off at noon.
How many flights depart from Boston to San Francisco on average per week?
As of April 2025, 271 flights take off from Boston and land in San Francisco each week. The most common flight departure day for this route is Thu, with 18% of weekly flights taking off 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 | C$ 139 |
|---|---|
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?
The distance between Boston Logan Intl and San Francisco is about 4329.4 km. 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 are refreshed on a daily basis.
How many operators does momondo search for flights from Boston Logan Intl Airport to San Francisco Airport?
There are 2 operators available for flights from Boston Logan Intl Airport to San Francisco Airport as of April 2025.
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 layovers. 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 travel and health documents you'll need for your trip to San Francisco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek 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 this flight route, the most popular plane model on flight routes from Boston to San Francisco is Airbus A321neo (25.36% of total bookings). The next most popular plane models are Airbus A318/A319/A320/A321 (22.76%), Boeing 737 MAX 9 (17.00%), and Boeing 757-200 (11.37%).
What is the most popular airline from Boston to San Francisco?
momondo data reveals that the most frequently booked airline on the route from Boston to San Francisco is JetBlue, representing 56% of all bookings. The subsequent popular airline is Delta at 44%.
Best airlines flying from Boston to San Francisco
Compare and see reviews for airlines that fly from Boston to San Francisco with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 178 | Free Cancellation | Rating 8.0 7,916 reviews | |||
| PriceFrom C$ 273 | Free Cancellation | Rating 7.3 2,926 reviews |
Delta Flights From Boston to San Francisco
The lowest priced Delta flight from Boston to San Francisco from the last 72 hours was C$ 128. Generally, Delta has 6 flights on this route every week with an average price of C$ 255. Delta is rated 8.0/10 by our users.
JetBlue Flights From Boston to San Francisco
Across 2,926 JetBlue reviews on momondo, the average score is 7.3/10. JetBlue flies from Boston to San Francisco about 18 times each week, with ticket deals ranging from C$ 196 to C$ 386. Price data is based on momondo searches in the last 72 hours.
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?
It is quick and easy to find Boston to San Francisco flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Francisco that suits you.
Can I find flights from Boston to San Francisco with flexible booking policies on momondo?
Yes. All flights to San Francisco from Boston on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Boston to San Francisco?
momondo provides multiple filters to help you find the best flight to San Francisco from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
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 simply researching potential flights to San Francisco, momondo offers a useful price alert feature which will track prices for flights to San Francisco from Boston and alert you when they change.