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$41+ Cheap flights from Boston (BOS) to San Francisco Bay Area

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SFO
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from Boston to San Francisco Bay Area

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to San Francisco Bay Area (zzXIH). 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 January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$176
(Mytrip)

One-way from

$41
(FlightHub)

Popular in

June

Cheapest in

September

Average price

$337
Provider with most accurate pricing for Boston Logan Intl-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-San Francisco flights.
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From Boston Logan Intl to San Francisco Bay Area
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One-way flight from Boston Logan Intl to San Francisco Bay Area
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Highest demand for flights based on searches. 9% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from Boston to San Francisco Bay Area

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

This Mytrip deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/268:09 pmBOS - OAK
3 stops29h 03mSpirit Airlines
Wed 3/510:30 amOAK - BOS
3 stops21h 50mSpirit Airlines
Deal found 1/29$176
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/57:55 amBOS - SFO
Nonstop6h 55mUnited Airlines
Tue 3/111:08 pmSFO - BOS
1 stop7h 42mUnited Airlines
Deal found 1/29$203
This JetBlue deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/34:40 pmBOS - SFO
1 stop10h 34mJetBlue
Wed 2/58:00 amSFO - BOS
Nonstop5h 34mJetBlue
Deal found 1/30$207
This Frontier deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/310:05 amBOS - SFO
1 stop15h 15mFrontier
Thu 5/1511:50 pmSFO - BOS
1 stop8h 58mFrontier
Deal found 1/29$210
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/215:50 pmBOS - SFO
Nonstop7h 06mDelta
Tue 2/257:30 amSFO - BOS
Nonstop5h 40mDelta
Deal found 1/29$212
This Expedia deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/297:47 pmBOS - SFO
Nonstop6h 47mMultiple Airlines
Fri 5/211:53 pmSFO - BOS
1 stop8h 55mMultiple Airlines
Deal found 1/28$215
This Alaska Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/197:59 pmBOS - SFO
1 stop15h 53mAlaska Airlines
Wed 2/2611:35 amSFO - BOS
1 stop9h 24mAlaska Airlines
Deal found 1/29$216
This American Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/204:51 pmBOS - SFO
1 stop8h 47mAmerican Airlines
Wed 2/266:30 pmSFO - BOS
1 stop7h 55mAmerican Airlines
Deal found 1/29$236
This Mytrip deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/68:35 pmBOS - SJC
3 stops30h 40mSpirit Airlines
Tue 3/112:19 pmSJC - BOS
3 stops18h 01mSpirit Airlines
Deal found 1/28$237
This Expedia deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2710:00 amBOS - SJC
1 stop9h 51mMultiple Airlines
Mon 3/35:40 pmSJC - BOS
2 stops17h 10mMultiple Airlines
Deal found 1/29$239
This Alaska Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/207:59 pmBOS - OAK
1 stop15h 45mAlaska Airlines
Thu 2/276:49 amOAK - BOS
1 stop14h 10mAlaska Airlines
Deal found 1/30$247
This Alaska Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2710:00 amBOS - SJC
1 stop9h 51mAlaska Airlines
Mon 3/38:46 pmSJC - BOS
1 stop17h 38mAlaska Airlines
Deal found 1/29$261

Find flights from Boston to San Francisco Bay Area within your budget

Customize your flight search to find flights from Boston to San Francisco Bay Area 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 2,558,603 searches. Data last updated January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonOakland

BOS - OAK

BOSOAK

Boston Logan Intl

Wed 2/26

8:09 pm-10:12 pm

3 stops29h 03m

Oakland

Wed 3/5

10:30 am-11:20 am

3 stops21h 50m

$176

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 2/26

5:54 pm-9:50 pm

Nonstop6h 56m

San Francisco

Mon 3/3

7:30 pm-7:20 am

1 stop8h 50m

$203

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 2/24

8:10 pm-11:55 pm

Nonstop6h 45m

San Francisco

Wed 2/26

12:56 pm-12:18 am

1 stop8h 22m

$207

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sat 5/3

10:05 am-10:20 pm

1 stop15h 15m

San Francisco

Thu 5/15

11:50 pm-11:48 am

1 stop8h 58m

$210

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Tue 4/29

7:47 pm-11:34 pm

Nonstop6h 47m

San Francisco

Thu 5/1

11:50 pm-11:48 am

1 stop8h 58m

$215

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 2/19

7:59 pm-8:52 am

1 stop15h 53m

San Francisco

Wed 2/26

9:00 am-3:23 pm

1 stop27h 23m

$216

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sun 2/23

7:55 am-12:04 pm

Nonstop7h 09m

San Francisco

Thu 2/27

7:30 am-4:10 pm

Nonstop5h 40m

$224

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 2/20

4:51 pm-10:38 pm

1 stop8h 47m

San Francisco

Wed 2/26

6:30 pm-5:25 am

1 stop7h 55m

$236

BostonSan Jose

BOS - SJC

BOSSJC

Boston Logan Intl

Thu 3/6

8:35 pm-12:15 am

3 stops30h 40m

San Jose

Tue 3/11

2:19 pm-11:20 am

3 stops18h 01m

$237

BostonSan Jose

BOS - SJC

BOSSJC

Boston Logan Intl

Thu 2/27

10:00 am-4:51 pm

1 stop9h 51m

San Jose

Mon 3/3

5:40 pm-1:50 pm

2 stops17h 10m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 49 results
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Best time to book a flight from Boston to San Francisco Bay Area

Have a flexible travel schedule? Discover the best time to fly to San Francisco Bay Area from Boston with our price prediction graph.
Estimated round-trip 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 Bay Area

Get recent, data-driven insights about flights from Boston to San Francisco Bay Area including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Boston to San Francisco Bay Area (average of $276). Flying from Boston to San Francisco Bay Area in June is currently the most expensive (average of $405). 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 XIH?

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

When flying from Boston to San Francisco Bay Area, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Boston to San Francisco Bay Area

Explore weekly flight availability from Boston to San Francisco Bay Area. 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 January 30, 2025.

The most flights from BOS to zzXIH are scheduled on a Thursday (29 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 Bay Area by month

Plan your trip to San Francisco Bay Area by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco Bay Area ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco Bay Area when rainfall is around 0.0 in.

Temperature in San Francisco Bay Area by month

Plan your trip to San Francisco Bay Area by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco Bay Area, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco Bay Area

Get insights into the airlines that provide service to San Francisco Bay Area. 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 Bay Area. Reviews last updated January 30, 2025.
To help decide which airline to fly from Boston to San Francisco Bay Area, see what other customers have to say about Southwest, Alaska Airlines and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,585 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,688 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,454 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

JetBlue
7.4
Good
3,156 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,913 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

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 Bay Area. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boston to San Francisco Bay Area?

    If you book a flight to San Francisco Bay Area from Boston, you will be flying from Logan Intl, which is the city’s only airport. Boston Logan Intl (BOS) is located 2.6 mi from the center of Boston.

  • How popular is this Boston to San Francisco Bay Area flight route?

    This flight path from Boston Logan Intl to San Francisco Bay Area was viewed by 83 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    One-way options have recently been found by users for as low as $41 on Spirit Airlines. Other airlines that offer cheap prices include Delta from $114 and American Airlines from $119 one-way.

  • What are the most popular routes from Boston to San Francisco Bay Area?

    The most popular flight routes from Boston to San Francisco Bay Area are Boston Logan Intl - San Francisco, Boston Logan Intl - Oakland and Boston Logan Intl - San Jose.

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

    No one likes to see their flight delayed. When booking a flight from Boston to San Francisco Bay Area consider choosing Korean Air (100%), EL AL (93%) or ANA (87%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Boston to San Francisco Bay Area?

    On average you can expect to pay $944 for a flight from Boston to San Francisco Bay Area. The cheapest flight overall is $98 while the most popular route, (Boston Logan Intl - San Francisco) is currently priced at $168.

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

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

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

    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 Bay Area.

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

    Yes. Cheapflights offers flight deals from Boston to San Francisco Bay Area 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 Bay Area?

    Currently, January is the cheapest month in which you can book a flight from Boston to San Francisco Bay Area (average of $276). Flying from Boston to San Francisco Bay Area in June is currently the most expensive (average of $405). 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.

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Alternative routes for Boston to San Francisco Bay Area

See prices for flight routes from nearby airports that may be better suited for you.
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Worcester to San Francisco flights

Top 9 airlines flying from Boston to San Francisco Bay Area

Discover the top 9 airlines that operate flights from Boston to San Francisco Bay Area. 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 2,558,603 searches. Data last updated January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$71Average$147FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$118Average$345FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$129Average$458FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$137Average$488FlexibilityNo cancel feeOn-time75%
DeltaCheapest$149Average$394FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$162Average$341FlexibilityNo cancel feeOn-time83%
Spirit AirlinesCheapest$164Average$285FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$226Average$417FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$228Average$445FlexibilityNo cancel feeOn-time63%
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