$71 Find Cheap Flights from Massachusetts to San Francisco Bay Area

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Useful Info
Useful Info

Good to know

Low seasonFebruary
High seasonMay
Cheapest flight$71
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Boston to San Jose

Flights from Massachusetts to San Francisco Bay Area: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Massachusetts to San Francisco Bay Area 
Learn how KAYAK collects reviews and tips from users.
GeraldFlew with DeltaBOS-SFOMar 2025
Book a flight early in the morning. The plane & crew will have arrived the previous night
PaulaFlew with Alaska AirlinesBOS-SFOJul 2024
Get your boarding pass online and save it to your wallet App on the iPhone. Makes it so easy
Verified travelerFlew with Alaska AirlinesBOS-SFOMar 2024
Long flight duration. Because of weather it took 8 hrs to get there . On my way back it was smooth and short

FAQs for booking flights from Massachusetts to San Francisco Bay Area

  • How does KAYAK find such low prices on flights from Massachusetts to San Francisco Bay Area?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Massachusetts to San Francisco Bay Area.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Massachusetts to San Francisco Bay Area?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Massachusetts to San Francisco Bay Area is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Massachusetts to San Francisco Bay Area?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Massachusetts to San Francisco Bay Area with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Massachusetts to San Francisco Bay Area?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Massachusetts to San Francisco Bay Area up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in San Francisco Bay Area?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in San Francisco Bay Area is San Francisco Airport (SFO), with an average flight price of $249.

  • What is the cheapest day to fly to San Francisco Bay Area?

    Based on KAYAK data, the cheapest day to fly to San Francisco Bay Area is Wednesday where round-trip tickets can be as cheap as $375. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $536 on average.

  • What is the cheapest time of day to fly to San Francisco Bay Area?

    The cheapest time of day to fly to San Francisco Bay Area is generally at night, when round-trip flights cost $321 on average. Morning departures are around 11% cheaper than evening flights, on average. The most expensive time of day to fly to San Francisco Bay Area is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $559.

  • What is the cheapest flight to San Francisco Bay Area?

    The cheapest ticket to San Francisco Bay Area from Massachusetts found in the last 72 hours was to San Francisco, at $227 round-trip. The most popular route is Boston (BOS) to San Francisco (SFO) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $227.

  • What is the cheapest month to fly from Massachusetts to San Francisco Bay Area?

    The cheapest month for flights from Massachusetts to San Francisco Bay Area is January, when tickets cost $288 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $469 and $424 respectively.

  • How far in advance should I book a flight from Massachusetts to San Francisco Bay Area?

    To get a below average price on the flight from Massachusetts to San Francisco Bay Area, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

  • How long is the flight to San Francisco Bay Area?

    An average nonstop flight from Massachusetts to San Francisco Bay Area takes 13h 01m, covering a distance of 2659 miles. The shortest route is Boston (BOS) to San Francisco (SFO) with an average flight time of 6h 28m.

  • What are the most popular destinations in San Francisco Bay Area?

    Based on KAYAK flight searches, the most popular destination is San Francisco (78% of total searches to San Francisco Bay Area). The next most popular destinations are San Jose (11%) and Oakland (9%). Searches for flights to Santa Rosa (1%) are also popular.

Book cheap flights from Massachusetts to San Francisco Bay Area

Recent round-trip flight deals

6/3Tue
2 stopsSpirit Airlines
16h 25mBOS-SJC
6/10Tue
3 stopsSpirit Airlines
31h 24mSJC-BOS
$195
6/3Tue
nonstopDelta
6h 45mBOS-SFO
6/10Tue
nonstopDelta
5h 44mSFO-BOS
$197
5/28Wed
1 stopFrontier
13h 42mBOS-SFO
6/3Tue
1 stopFrontier
9h 01mSFO-BOS
$198
5/24Sat
nonstopJetBlue
6h 49mBOS-SFO
5/31Sat
nonstopJetBlue
5h 41mSFO-BOS
$199
5/28Wed
nonstop
6h 45mBOS-SFO
6/3Tue
1 stop
9h 01mSFO-BOS
$203
5/24Sat
nonstopAlaska Airlines
6h 45mBOS-SFO
5/31Sat
nonstopAlaska Airlines
5h 53mSFO-BOS
$207
5/10Sat
1 stopFrontier
27h 49mBDL-SFO
5/17Sat
1 stopFrontier
9h 39mSFO-BDL
$208
5/24Sat
nonstopAlaska Airlines
6h 45mBOS-SFO
5/31Sat
nonstopAlaska Airlines
5h 53mSFO-BOS
$208
5/11Sun
1 stop
10h 15mBOS-SFO
5/20Tue
nonstop
5h 49mSFO-BOS
$213
5/21Wed
nonstopJetBlue
6h 29mBOS-SFO
5/28Wed
1 stopJetBlue
9h 32mSFO-BOS
$246

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Recent one-way flight deals

6/2Mon
2 stopsSpirit Airlines
21h 16mBOS-SJC
$71
5/29Thu
2 stopsSpirit Airlines
21h 16mBOS-SJC
$89
5/28Wed
nonstopJetBlue
6h 33mBOS-SFO
$99
5/6Tue
1 stopFrontier
32h 15mBOS-SFO
$104
5/28Wed
1 stopHawaiian Airlines
10h 04mBOS-SFO
$105
5/14Wed
1 stopFrontier
32h 15mBOS-SFO
$106
6/11Wed
1 stopAlaska Airlines
10h 04mBOS-SFO
$108
5/21Wed
1 stopAlaska Airlines
11h 50mBOS-SJC
$108
5/7Wed
1 stopHawaiian Airlines
8h 56mBOS-SJC
$112
5/20Tue
nonstopJetBlue
6h 42mBOS-SFO
$119

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Last minute flights from Massachusetts to San Francisco Bay Area

Last minute flight, train and bus deals

5/1Thu
multi-stopFrontier
13h 07mBOS-SFO
5/19Mon
multi-stopFrontier
23h 45mSFO-BOS
$221
5/1Thu
multi-stopFrontier
13h 07mBOS-SFO
5/7Wed
multi-stopFrontier
24h 06mSFO-BOS
$223
5/5Mon
multi-stopUnited Airlines
10h 49mBOS-SJC
5/9Fri
multi-stopUnited Airlines
7h 54mSJC-BOS
$274
5/5Mon
multi-stopUnited Airlines
12h 10mBOS-SJC
5/9Fri
multi-stopUnited Airlines
7h 54mSJC-BOS
$279
5/2Fri
multi-stop
12h 30mBOS-SFO
5/13Tue
nonstop
5h 40mSFO-BOS
$293
5/2Fri
multi-stopAlaska Airlines
10h 46mBOS-SJC
5/6Tue
multi-stopAlaska Airlines
10h 45mSJC-BOS
$296
5/2Fri
multi-stopAlaska Airlines
10h 46mBOS-SJC
5/10Sat
multi-stopAlaska Airlines
10h 00mSJC-BOS
$322
5/1Thu
multi-stopDelta
9h 56mBOS-SJC
5/4Sun
multi-stopDelta
10h 25mSJC-BOS
$323
5/1Thu
multi-stop
13h 07mBOS-SFO
5/9Fri
multi-stop
14h 12mSFO-BOS
$360
5/1Thu
nonstopDelta
6h 50mBOS-SFO
5/19Mon
nonstopDelta
5h 45mSFO-BOS
$441

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Everything you need to know for your flight to San Francisco Bay Area

Cabin class types available on flights to Massachusetts

Cabin classes available on flights to Massachusetts. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to San Francisco Bay Areafrom $162
Business Class flights to San Francisco Bay Areafrom $288
Prem Econ Class flights to San Francisco Bay Areafrom $182
Economy Class flights to San Francisco Bay Areafrom $42

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