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San Francisco Bay Area

$75+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SFO
mai 10 — mai 171
sam. 5/10
sam. 5/17
1 adult, Economy
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Cheap flight deals from Boston to San Francisco Bay Area

Keep the following information in mind while searching for Boston to San Francisco Bay Area flight deals. Data was last updated mai 5, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$172
(Mytrip)

One-way from

$75
(CheapOair)

Popular in

June

Cheapest in

September

Average price

$359
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. 6% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in May 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 mai 5, 2025.

This Mytrip deal was found by Cheapflights users on 5/5. 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.
lun. 6/29:46 amBOS - OAK
2 stops15h 39mSpirit Airlines
mer. 6/42:07 pmOAK - BOS
3 stops23h 17mSpirit Airlines
Deal found 5/5$172
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 5/116:00 amBOS - SFO
1 stop10h 15mFrontier
dim. 6/88:48 pmSFO - BOS
1 stop10h 08mFrontier
Deal found 5/4$228
This SmartFares deal was found by Cheapflights users on 5/5. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 5/317:00 amBOS - SFO
Nonstop6h 49mHawaiian Airlines
lun. 6/97:49 pmSFO - BOS
1 stop8h 31mHawaiian Airlines
Deal found 5/5$236
This Delta deal was found by Cheapflights users on 5/4. 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.
mar. 5/277:55 amBOS - SFO
Nonstop6h 45mDelta
mer. 6/47:00 amSFO - BOS
Nonstop5h 45mDelta
Deal found 5/4$237
This Alaska Airlines deal was found by Cheapflights users on 5/5. 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.
mar. 6/37:59 pmBOS - SFO
Nonstop6h 45mAlaska Airlines
sam. 6/77:24 amSFO - BOS
1 stop21h 16mAlaska Airlines
Deal found 5/5$247
This Orbitz deal was found by Cheapflights users on 5/3. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/211:56 amBOS - SFO
1 stop13h 52mMultiple Airlines
lun. 6/98:47 pmSFO - BOS
Nonstop5h 53mMultiple Airlines
Deal found 5/3$250
This Hawaiian Airlines deal was found by Cheapflights users on 5/4. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/37:30 amBOS - OAK
1 stop9h 06mHawaiian Airlines
mar. 6/1012:48 pmOAK - BOS
1 stop8h 18mHawaiian Airlines
Deal found 5/4$257
This American Airlines deal was found by Cheapflights users on 5/4. 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.
sam. 5/316:45 amBOS - SFO
1 stop9h 10mAmerican Airlines
sam. 6/76:25 amSFO - BOS
1 stop8h 01mAmerican Airlines
Deal found 5/4$257
This JetBlue deal was found by Cheapflights users on 5/5. 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.
jeu. 7/36:30 pmBOS - SFO
Nonstop6h 48mJetBlue
mar. 7/81:30 pmSFO - BOS
Nonstop5h 44mJetBlue
Deal found 5/5$259
This American Airlines deal was found by Cheapflights users on 5/5. 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.
lun. 5/124:54 pmBOS - SJC
1 stop8h 52mAmerican Airlines
sam. 5/177:16 pmSJC - BOS
1 stop7h 44mAmerican Airlines
Deal found 5/5$261
This Mytrip deal was found by Cheapflights users on 5/5. 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.
ven. 5/2310:30 amBOS - SJC
3 stops26h 35mSpirit Airlines
jeu. 5/296:00 amSJC - BOS
2 stops33h 58mSpirit Airlines
Deal found 5/5$263
This Southwest deal was found by Cheapflights users on 5/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 6/45:00 amBOS - SJC
1 stop7h 55mSouthwest
mer. 6/118:55 pmSJC - BOS
1 stop10h 05mSouthwest
Deal found 5/5$264

Cheapflights Fare Finder

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 mai 5, 2025.
Use the filters below to find and compare flights from Boston to San Francisco Bay Area that are best for you.

Fly from

Boston

Fly to

San Francisco Bay Area

Route

Depart

Return

Price

BostonOakland

BOS - OAK

BOSOAK

Boston Logan Intl

lun. 6/2

9:46 am-10:25 pm

2 stops15h 39m

Oakland

mer. 6/4

2:07 pm-4:24 pm

3 stops23h 17m

$172

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

dim. 5/11

6:00 am-1:15 pm

1 stop10h 15m

San Francisco

dim. 6/8

8:48 pm-9:56 am

1 stop10h 08m

$228

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

sam. 5/31

7:00 am-10:49 am

Nonstop6h 49m

San Francisco

lun. 6/9

7:49 pm-7:20 am

1 stop8h 31m

$236

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

mar. 5/27

7:55 am-11:40 am

Nonstop6h 45m

San Francisco

mer. 6/4

7:00 am-3:45 pm

Nonstop5h 45m

$237

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

mar. 5/27

6:00 am-9:28 am

Nonstop6h 28m

San Francisco

lun. 6/2

9:20 pm-6:04 am

Nonstop5h 44m

$248

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

lun. 6/2

11:56 am-10:48 pm

1 stop13h 52m

San Francisco

lun. 6/9

8:47 pm-5:40 am

Nonstop5h 53m

$250

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

mar. 6/3

8:40 am-2:19 pm

1 stop8h 39m

San Francisco

sam. 6/7

7:24 am-7:40 am

1 stop21h 16m

$256

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

sam. 5/31

6:45 am-12:55 pm

1 stop9h 10m

San Francisco

sam. 6/7

6:25 am-5:26 pm

1 stop8h 01m

$257

BostonOakland

BOS - OAK

BOSOAK

Boston Logan Intl

mar. 6/3

7:30 am-1:36 pm

1 stop9h 06m

Oakland

mar. 6/10

12:48 pm-12:06 am

1 stop8h 18m

$257

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

jeu. 7/3

6:30 pm-10:18 pm

Nonstop6h 48m

San Francisco

mar. 7/8

1:30 pm-10:14 pm

Nonstop5h 44m

$259

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/4

Showing 1-10 of 53 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.

Cheapflights Insights

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

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 $384). 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 mai 5, 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 mai 5, 2025.

The most flights from BOS to zzXIH are scheduled on a Monday (51 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (22 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 mai 5, 2025.
To help decide which airline to fly from Boston to San Francisco Bay Area, see what other customers have to say about Alaska Airlines, Southwest 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.
Alaska Airlines
8.0
Very good
9,987 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,987 reviews
Alaska Airlines
8.0
Very good
9,987 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,292 reviews
Alaska Airlines
8.0
Very good
9,987 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,939 reviews
Alaska Airlines
8.0
Very good
9,987 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,420 reviews
Alaska Airlines
8.0
Very good
9,987 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,702 reviews
Alaska Airlines
8.0
Very good
9,987 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 70 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 $75 on Spirit Airlines. Other airlines that offer cheap prices include Hawaiian Airlines from $119 and Frontier from $124 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 Air China (92%), Alaska Airlines (91%) or JetBlue (91%) 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 $1,000 for a flight from Boston to San Francisco Bay Area. The cheapest flight overall is $119 while the most popular route, (Boston Logan Intl - San Francisco) is currently priced at $215.

  • 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 $384). 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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Top 10 airlines flying from Boston to San Francisco Bay Area

Discover the top 10 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 mai 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$84Average$203FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$99Average$343FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$129Average$318FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$133Average$466FlexibilityNo cancel feeOn-time71%
Sun Country AirCheapest$150Average$339FlexibilityNo cancel feeOn-time83%
DeltaCheapest$163Average$381FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$166Average$261FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$210Average$455FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$227Average$409FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$228Average$460FlexibilityNo cancel feeOn-time63%

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