Question 1

How popular is this Boston to San Francisco flight route?

Accepted Answer

This flight path from Boston Logan Intl to San Francisco was viewed by 11 users in the past month. Keep an eye out for changes in search interest prior to high and low season. Find deals

Question 2

What are the cheapest airlines flying from Boston to San Francisco round-trip?

Accepted Answer

Alaska Airlines, at ₹ 21,468, was found to be the cheapest airline from Boston to San Francisco.Alternate airlines to your destination round-trip include Delta and Southwest. Alaska Airlines is currently priced 30% below the average price you’ll pay for this route. Find deals

Question 3

What are the cheapest airlines to fly from Boston to San Francisco one-way?

Accepted Answer

The cheapest airline one-way is Alaska Airlines, with whom users have recently found tickets for as low as ₹ 12,081. However, be on the lookout for offers from United Airlines and Delta, as they are both options that can get you from Boston to San Francisco for a low price. Find deals

Question 4

How far ahead should I book a flight from Boston to San Francisco?

Accepted Answer

The best time to book flights from Boston to San Francisco is 78 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight. Find deals

Question 5

What is the cheapest month to book a flight from Boston to San Francisco?

Accepted Answer

Currently, October is the cheapest month in which you can book a flight from Boston to San Francisco (average of ₹ 988). Flying from Boston to San Francisco in August is currently the most expensive (average of ₹ 1,291). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 6

What is the cheapest day to fly from Boston to San Francisco?

Accepted Answer

Travellers seeking maximum savings on their Boston to San Francisco flight should consider departing on Sunday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 7

Weekly flight availability from Boston to San Francisco

Accepted Answer

The most flights from BOS to SFO are scheduled on a Tuesday (60 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (35 on average).

Question 8

E

Accepted Answer

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

Question 9

E

Accepted Answer

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

Question 10

What are the cheapest flights from Boston to San Francisco?

Accepted Answer

Looking for the cheapest flight from Boston to San Francisco? While on average our users pay ₹ 38,524, our data indicates the cheapest price to be ₹ 14,645. The most popular route (Boston Logan Intl - San Francisco), is priced around ₹ 35,549.

Question 11

What are the most reliable airlines from Boston to San Francisco?

Accepted Answer

Consider Japan Airlines (89%), Qantas Airways (89%) or Icelandair (88%) when booking your flight. These represent the most reliable airlines when flying from Boston to San Francisco.

Question 12

What are the most popular airlines that fly from Boston to San Francisco?

Accepted Answer

The most popular airlines flying from Boston to San Francisco are JetBlue, Delta and United Airlines. Something to consider prior to booking your flight.

Question 13

What is the cheapest day to fly return from Boston to San Francisco?

Accepted Answer

Users have found that flying from Boston to San Francisco on a Thursday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

Question 14

How far in advance should I book a flight from Boston to San Francisco?

Accepted Answer

Users have found that booking a flight from Boston to San Francisco at least 57 days early can save you up to 81% on average compared to booking a flight this week. If booking 57 days before your flight isn’t an option for you, users have found flights from Boston to San Francisco for as little as ₹ 36,853 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as ₹ 47,630 for flights departing within the next 3 days.

Question 15

What is the cheapest month to fly from Boston to San Francisco?

Accepted Answer

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, September can be a great choice for travel to San Francisco. Flights to San Francisco from Boston in September are about ₹ 31,007 on average during September, but can be found for as low as ₹ 11,212.

Question 16

What is the cheapest time of day to fly from BOS to SFO?

Accepted Answer

A simple way to save on the total cost of your ticket is to fly from Boston to San Francisco in the afternoon. If you’re flexible enough to do this you can expect to save up to 54% on your trip compared to booking a flight at midday.

Question 17

What airports do I use to fly from Boston to San Francisco?

Accepted Answer

If you wish to fly to San Francisco from Boston, then you need to book flights from Boston Logan Intl to San Francisco. There are 48 flights from Logan Intl (BOS) to San Francisco (SFO) per day to choose from. Flights to San Francisco from Logan Intl are available from 3 different airlines, which means you should have some options if you want to compare airfare deals. 6h 53m is how long a nonstop flight from Boston to San Francisco typically takes.

Question 18

Can I find deals for flights from Boston to San Francisco that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Boston to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 19

How can I find direct flights from Boston to San Francisco?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to San Francisco.

Question 20

Can I find deals for business class flights from Boston to San Francisco?

Accepted Answer

Yes. Cheapflights offers flight deals from Boston to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 21

How does Cheapflights help users find flights from Boston to San Francisco?

Accepted Answer

When you search for this flight from Boston to San Francisco, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Question 22

Why should you use Cheapflights to find cheap flight tickets from Boston to San Francisco?

Accepted Answer

Millions of users choose and trust Cheapflights to book the best flight deals from Boston to San Francisco for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Question 23

Can Cheapflights find flights from Boston to San Francisco with no change fees?

Accepted Answer

Users can book flights with no change fees policies with our dedicated filters. Book flights from Boston to San Francisco flexibly with Cheapflights today.

Question 24

Can Cheapflights notify me if prices for flights from Boston to San Francisco become cheaper?

Accepted Answer

Of course! You can now track prices for flights from Boston to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

Round-trip from	₹ 21,468
One-way from	₹ 12,081
Popular in	December
Cheapest in	September
Average price	₹ 32,768
Good round-trip deal	₹ 42,458 or less
Good one-way deal	₹ 20,728 or less

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest₹ 10,297	Average₹ 24,506	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
United Airlines	Cheapest₹ 14,305	Average₹ 31,200	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
JetBlue	Cheapest₹ 17,088	Average₹ 30,244	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights

Cheap flights from Boston to San Francisco from ₹ 12,081

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Boston Logan Intl to San Francisco are usually found in September or January, booked 78 days in advance, depart on a Friday or Monday and return on a Wednesday

Cheap flight deals from Boston to San Francisco

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Find flight deals from Boston to San Francisco

Cheapest flights from Boston to San FranciscoExplore the most affordable flight options available from Boston to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2025.

Explore the most affordable flight options available from Boston to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to San Francisco that are best for you.

Best time to book a flight from Boston to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Boston with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Boston to San Francisco

How far ahead should I book a flight from Boston to San Francisco?

Use this chart to determine the optimal time to book a return flight from Boston to San Francisco. Price data was last updated on 25 July 2025.

What is the cheapest month to book a flight from Boston to San Francisco?

What is the cheapest time of day to fly from BOS to SFO?

Find hourly flight availability from Boston to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 July 2025.

Weekly flight availability from Boston to San Francisco

Explore weekly flight availability from Boston to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 30 July 2025.

Reviews of airlines servicing San Francisco

See what other customers who have flown with Alaska Airlines, Southwest, andDelta from Boston to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Boston to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airports do I use to fly from Boston to San Francisco?

How popular is this Boston to San Francisco flight route?

What are the cheapest airlines flying from Boston to San Francisco round-trip?

What are the cheapest airlines to fly from Boston to San Francisco one-way?

What are the most reliable airlines from Boston to San Francisco?

What are the cheapest flights from Boston to San Francisco?

Can I find deals for flights from Boston to San Francisco that include hotel bookings?

How can I find direct flights from Boston to San Francisco?

Can I find deals for business class flights from Boston to San Francisco?

What is the cheapest month to book a flight from Boston to San Francisco?

Travelling to a place near San Francisco?

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Top 3 airlines flying from Boston to San Francisco

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How does Cheapflights help users find flights from Boston to San Francisco?

Why should you use Cheapflights to find cheap flight tickets from Boston to San Francisco?

Can Cheapflights find flights from Boston to San Francisco with no change fees?

Can Cheapflights notify me if prices for flights from Boston to San Francisco become cheaper?

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Cheapest flights from Boston to San Francisco
Explore the most affordable flight options available from Boston to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2025.