Cheap flights from Boston to San Francisco from £93
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 19/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SFO
22 Jan — 29 Jan1
Return
1 adult
Economy
The best prices from Boston Logan Intl to San Francisco are usually found in February or September, booked 56 days in advance, depart on a Monday or Wednesday and return on a Monday
Cheap flight deals from Boston to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 January 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 17 January 2025.
Mon 10/212:56BOS - SFO
1 stop9h 54mMultiple Airlines
Wed 12/206:00SFO - BOS
1 stop7h 55mMultiple Airlines
Deal found 15/1£177
Wed 26/215:35BOS - SFO
Nonstop6h 49mJetBlue
Wed 26/223:20SFO - BOS
Nonstop5h 30mJetBlue
Deal found 16/1£181
Fri 28/207:50BOS - SFO
Nonstop7h 09mDelta
Wed 12/307:25SFO - BOS
Nonstop5h 33mDelta
Deal found 16/1£186
Tue 18/316:41BOS - SFO
1 stop9h 10mUnited Airlines
Tue 25/307:15SFO - BOS
Nonstop5h 35mUnited Airlines
Deal found 17/1£191
Thu 20/216:23BOS - SFO
1 stop10h 22mAlaska Airlines
Thu 27/207:30SFO - BOS
1 stop13h 29mAlaska Airlines
Deal found 17/1£201
Fri 28/214:45BOS - SFO
2 stops12h 10mSouthwest
Tue 4/305:20SFO - BOS
2 stops9h 00mSouthwest
Deal found 15/1£252
Tue 17/611:34BOS - SFO
1 stop8h 52mSun Country Air
Thu 3/723:59SFO - BOS
1 stop7h 38mSun Country Air
Deal found 16/1£307
Best flights from Boston to San Francisco
Discover carefully curated flight deals from Boston to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 January 2025.
Mon 10/212:56BOS - SFO
1 stop9h 54mMultiple Airlines
Wed 12/206:00SFO - BOS
1 stop7h 55mMultiple Airlines
Deal found 15/1£177
Wed 26/215:35BOS - SFO
Nonstop6h 49mJetBlue
Wed 26/223:20SFO - BOS
Nonstop5h 30mJetBlue
Deal found 16/1£181
Fri 28/217:50BOS - SFO
Nonstop7h 06mDelta
Tue 11/307:25SFO - BOS
Nonstop5h 33mDelta
Deal found 16/1£186
Tue 18/316:41BOS - SFO
1 stop9h 10mUnited Airlines
Tue 25/323:25SFO - BOS
Nonstop5h 37mUnited Airlines
Deal found 16/1£191
Thu 20/216:23BOS - SFO
1 stop10h 22mAlaska Airlines
Tue 25/208:20SFO - BOS
1 stop12h 39mAlaska Airlines
Deal found 17/1£201
Fri 28/214:45BOS - SFO
2 stops12h 10mSouthwest
Tue 4/305:20SFO - BOS
2 stops9h 00mSouthwest
Deal found 15/1£252
Tue 17/611:34BOS - SFO
1 stop8h 52mSun Country Air
Sat 21/623:59SFO - BOS
1 stop20h 44mSun Country Air
Deal found 15/1£307
Direct flights from Boston to San Francisco
Explore direct flight options from Boston to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 January 2025.
Wed 26/215:35BOS - SFO
Nonstop6h 49mJetBlue
Wed 26/223:20SFO - BOS
Nonstop5h 30mJetBlue
Deal found 16/1£181
Fri 28/217:50BOS - SFO
Nonstop7h 06mDelta
Tue 11/307:25SFO - BOS
Nonstop5h 33mDelta
Deal found 16/1£186
Thu 13/205:45BOS - SFO
Nonstop6h 55mUnited Airlines
Mon 24/223:20SFO - BOS
Nonstop5h 37mUnited Airlines
Deal found 16/1£214
Thu 20/218:20BOS - SFO
Nonstop6h 52mAlaska Airlines
Sat 22/208:25SFO - BOS
Nonstop5h 41mAlaska Airlines
Deal found 16/1£258
Last-minute flights from Boston to San Francisco
Discover last-minute flight deals from Boston to San Francisco. Data last updated 17 January 2025 and is based on user searches.
Thu 23/118:00BOS - SFO
Nonstop6h 50mUnited Airlines
Thu 30/110:45SFO - BOS
Nonstop5h 46mUnited Airlines
Deal found 16/1£288
Fri 24/116:30BOS - SFO
1 stop32h 06mAlaska Airlines
Fri 31/110:00SFO - BOS
1 stop10h 59mAlaska Airlines
Deal found 16/1£262
Fri 24/117:50BOS - SFO
Nonstop7h 06mDelta
Sat 1/207:30SFO - BOS
Nonstop5h 40mDelta
Deal found 17/1£316
Sat 25/108:30BOS - SFO
Nonstop6h 50mJetBlue
Sat 1/208:00SFO - BOS
Nonstop5h 34mJetBlue
Deal found 16/1£284
Mon 27/108:30BOS - SFO
1 stop9h 20mSouthwest
Fri 31/105:20SFO - BOS
1 stop8h 35mSouthwest
Deal found 16/1£326
Mon 27/114:28BOS - SFO
1 stop11h 36mAmerican Airlines
Thu 30/100:27SFO - BOS
1 stop10h 23mAmerican Airlines
Deal found 16/1£481
Fri 31/106:25BOS - SFO
1 stop9h 05mAmerican Airlines
Sat 1/200:27SFO - BOS
1 stop7h 35mAmerican Airlines
Deal found 16/1£227
Mon 10/212:56BOS - SFO
1 stop9h 54mMultiple Airlines
Wed 12/206:00SFO - BOS
1 stop7h 55mMultiple Airlines
Deal found 15/1£177
Tue 11/213:30BOS - SFO
Nonstop6h 51mUnited Airlines
Sun 16/219:30SFO - BOS
1 stop8h 50mUnited Airlines
Deal found 16/1£191
Tue 18/205:00BOS - SFO
1 stop9h 35mSouthwest
Tue 25/205:20SFO - BOS
2 stops11h 25mSouthwest
Deal found 17/1£248
Thu 20/216:23BOS - SFO
1 stop10h 22mAlaska Airlines
Thu 27/207:30SFO - BOS
1 stop13h 29mAlaska Airlines
Deal found 17/1£201
Wed 26/215:35BOS - SFO
Nonstop6h 49mJetBlue
Wed 26/223:20SFO - BOS
Nonstop5h 30mJetBlue
Deal found 16/1£181
One-way flights from Boston to San Francisco
Search for one-way flight options from Boston to San Francisco. Find affordable one-way fares based on user searches. Data last updated 17 January 2025.
Wed 19/306:00BOS - SFO
Nonstop6h 55mJetBlue
Deal found 16/1£93
Sat 22/305:45BOS - SFO
Nonstop6h 55mUnited Airlines
Deal found 17/1£94
Thu 20/216:23BOS - SFO
1 stop10h 22mAlaska Airlines
Deal found 17/1£101
Fri 11/720:00BOS - SFO
Nonstop6h 59mDelta
Deal found 16/1£110
Mon 14/711:34BOS - SFO
1 stop8h 52mSun Country Air
Deal found 16/1£133
Sun 16/222:30BOS - SFO
2 stops16h 20mSouthwest
Deal found 17/1£151
Find flights from Boston to San Francisco within your budget
Customise your flight search to find flights from Boston to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 January 2025.
Fly from
Any airport
Fly to
Any airport
Route
Depart
Return
Price
BostonSan Francisco
BOS - SFO
BOSSFO
Boston Logan Intl
Mon 10/2
12:56-19:50
1 stop9h 54m
San Francisco
Wed 12/2
06:00-16:55
1 stop7h 55m
£177
BostonSan Francisco
BOS - SFO
BOSSFO
Boston Logan Intl
Wed 26/2
15:35-19:24
Nonstop6h 49m
San Francisco
Wed 26/2
23:20-07:50
Nonstop5h 30m
£181
BostonSan Francisco
BOS - SFO
BOSSFO
Boston Logan Intl
Fri 28/2
07:50-11:59
Nonstop7h 09m
San Francisco
Wed 12/3
07:25-15:58
Nonstop5h 33m
£186
BostonSan Francisco
BOS - SFO
BOSSFO
Boston Logan Intl
Tue 18/3
16:41-22:51
1 stop9h 10m
San Francisco
Wed 26/3
13:05-21:42
Nonstop5h 37m
£191
BostonSan Francisco
BOS - SFO
BOSSFO
Boston Logan Intl
Thu 20/2
19:59-08:52
1 stop15h 53m
San Francisco
Thu 27/2
11:35-23:59
1 stop9h 24m
£201
BostonSan Francisco
BOS - SFO
BOSSFO
Boston Logan Intl
Fri 28/2
14:45-23:55
2 stops12h 10m
San Francisco
Tue 4/3
05:20-17:20
2 stops9h 00m
£252
BostonSan Francisco
BOS - SFO
BOSSFO
Boston Logan Intl
Tue 17/6
11:34-17:26
1 stop8h 52m
San Francisco
Thu 3/7
23:59-10:37
1 stop7h 38m
£307
BostonSan Francisco
BOS - SFO
BOSSFO
Boston Logan Intl
Wed 19/3
06:00-09:55
Nonstop6h 55m
£93
BostonSan Francisco
BOS - SFO
BOSSFO
Boston Logan Intl
Sat 22/3
05:45-09:40
Nonstop6h 55m
£94
BostonSan Francisco
BOS - SFO
BOSSFO
Boston Logan Intl
Thu 20/2
16:23-23:45
1 stop10h 22m
£101
Flights are sorted by cheapest return flights first.
Deals found on 16/1
Showing 1-10 of 13 results
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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.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Travel insights for flights from Boston to San Francisco
Get recent, data-driven insights about flights from Boston to San Francisco including ideal travel times, pricing trends, and more.
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 10 January 2025.
Booking 56 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Boston to San Francisco?
Currently, February is the cheapest month in which you can book a flight from Boston to San Francisco (average of £538). Flying from Boston to San Francisco in July is currently the most expensive (average of £803). 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.
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 17 January 2025.
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 33% on your trip compared to booking a flight in the morning.
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 17 January 2025.
The most flights from BOS to SFO are scheduled on a Thursday (34 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).
Rainfall in San Francisco by month
Plan your trip to San Francisco by taking into account the average rainfall totals by month.
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.
Temperature in San Francisco by month
Plan your trip to San Francisco by taking into account the average temperature totals by month.
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).
Reviews of airlines servicing San Francisco
Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated 17 January 2025.
See what other customers who have flown with Alaska Airlines, JetBlue and Delta from Boston to San Francisco have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
No issues. I needed pre boarding and I was able to get it without issue
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?
You will need to book a flight from Boston Logan Intl to San Francisco if you want to fly from Boston to San Francisco. At least 1 airline has flights from Logan Intl (BOS) to San Francisco (SFO) on a regular basis. There are 25 flights to San Francisco from the Boston airport per day. If you manage to book one that is nonstop, then you can expect the flight time from BOS to SFO to be around 7h 06m.
How popular is this Boston to San Francisco flight route?
Within the past month, 9 users have taken a look at flights from Boston Logan Intl to San Francisco.
What are the cheapest airlines flying from Boston to San Francisco round-trip?
Flying on JetBlue is currently your cheapest option to San Francisco, with prices starting at £181. Additional return tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at £186 and £191, respectively. You may be able to fly from Boston to San Francisco for 38% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Boston to San Francisco one-way?
The cheapet airlines for a one-way flight from Boston to San Francisco are JetBlue (£93), United Airlines (£94), and Alaska Airlines (£101).
What are the most reliable airlines from Boston to San Francisco?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Boston to San Francisco on time: Korean Air (100%), EL AL (93%), ANA (87%).
What are the cheapest flights from Boston to San Francisco?
On average you can expect to pay £217 for a flight from Boston to San Francisco. The cheapest flight overall is £142 while the most popular route, (Boston Logan Intl - San Francisco) is currently priced at £320.
Can I find deals for business class flights from Boston to San Francisco?
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.
What is the cheapest month to book a flight from Boston to San Francisco?
Currently, February is the cheapest month in which you can book a flight from Boston to San Francisco (average of £538). Flying from Boston to San Francisco in July is currently the most expensive (average of £803). 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.
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 17 January 2025.
Discover the top airline that operate flights from Boston to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 January 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Boston to San Francisco?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Boston to San Francisco. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Boston to San Francisco?
Cheapflights helps you find that perfect flight to San Francisco from Boston by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Boston to San Francisco with no change fees?
Yes! Cheapflights helps users easily 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?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Francisco from Boston today and book when prices fit your budget.
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