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Find cheap flights from Boston to San Francisco Bay Area from $79

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to San Francisco Bay Area departing on 8/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 6/22
Sat 6/29

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Best San Francisco Bay Area Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

San Francisco
San Francisco2 stops$171
San Jose
San Jose3 stops$211

Good to know

Low season

January

High season

August

Cheapest flight

$79
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Boston to Oakland

FAQs - booking San Francisco Bay Area flights

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco Bay Area from Boston 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 Boston 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 to San Francisco Bay Area with an airline and back to Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston 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 to San Francisco Bay Area from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to San Francisco Bay Area

  • Looking for a cheap flight? 25% of our users found tickets from Boston to the following destinations at these prices or less: San Francisco $190 one-way - $316 round-trip

Top 5 airlines serving from Boston to San Francisco Bay Area

 
Need help choosing which airline to fly with from Boston to San Francisco Bay Area? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9175 reviews
7.3Food
8.2Boarding
7.9Comfort
8.6Crew
7.3Entertainment
Airline reviews

The flight was late getting in, so many were stressed. The snacks for a LONG flight was not enough.

8.0 ExcellentThomas, May 2024JFK - SAN
Read more about Alaska Airlines reviews

The flight was late getting in, so many were stressed. The snacks for a LONG flight was not enough.

The whole experience went very well except the rest rooms were a disaster

Sat on tarmac for 30 minutes despite staring at three empty gates, one of which we eventually pulled into

Everything was great. Flight was on time with no issues. It was a short connecting flight so ww didn't have food offered. The gate we got off at was very close to our connecting flight gate so that was very easy.

Pilot warned us it was going to be bumpy, which I usually like when it is, but it wasn't, so I spent most of the flight unnecessarily wondering when it was going to get rough. Just can't win sometimes. Ha!

Flight was changed twice. Original flight was scheduled at 5:30pm. Weeks before flight, flight was changed to 7:00pm. On the date of flight, flight was delayed and departed at 9:00pm. This caused many problems and significantly affected our schedule at our destination.

They canceled my flight going back to SF after I was at the airport. Wanted me to take a flight 14 hours later. Not a happy camper.

I didn’t like not knowing my seat till I got to the airport - and my boarding group was F (last).

Wasn’t an Alaska plane so the seats were very thinly padded- glad I wasn’t going further.

Clean plane, relatively spacious in Main Cabin. One experience: I'm 79, with torn rotator cuff (R shoulder). I asked for help getting my carryon into the overhead bin and was told that the staff "does not help with this" (or some such phrase. On previous flights, help has been offered (and accepted). I prevailed on a fellow passenger for this. Also, why not board back to front?? Would this not help in the speed of boarding?

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

Everything went smoothly. I didn’t like that when I booked in the main cabin my wife and I weren’t seated together. One would think when booking on an option that allows picking your seat. They would put you and your travel partner together. Had to call to get it sorted. They did fix.

They did a fine job. Can't wait to use Delta in the future.

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

Seats in first class on the E175 recline too far back. I was in 2A, and the man in 1A fully reclined almost the entire flight. It took 6-7 inches of space away from me and made it very difficult to work on my laptop.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

Mario was great. Made a night flight on a small aircraft pleasant and memorable.

I had back trouble prior to my flight and everyone was great about helping me.

My tv was broken on the flight which is disappointing when you pay for a seat and expect a service

Always delays from Boston to Salt lake but this time was very long. Don’t understand while they board the passengers and then make them sit in the plane

Service for food to our seat was a bit slow. Snack choices were just pretzels or baked chips. My seat cushion was not attached. Other than Barbie, video choice were not very good or current.

After we landed, we were held on the plane for 30 minutes. There was no one at the gate once we landed and we forced to sit on a plan that had already over an hour delayed.

almost 4 hour delay as they over booked and had to wait for 8-10 volunteers to agree to travel next day.

Old plane. No outlets for laptop or phone. Seats worn out. Area around seat dirty.

I loved the flight and the crew. It was comfortable and smooth.

The crew was openly hostile and condescending to the customers. They spent the majority of that time in the rear talking and seemed really agitated when people asked questions. I heard five different people told that the information they requested was in the handout or safety brief.

ticketing issues caused many customers to have to go back to check in after waiting in security, then go through security line again.

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

The WiFi didn’t work and the seats are too close together. Very uncomfortable.

So so. Terrible aircraft choice for that leg of the flight.

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Fight crew was not very attentive and the bastions were gross!

Our flight was great we left Kona earlier and got into LAX almost an 1hour earlier as well. LAX AA is in repair so to get out and found our bus to get pick up was a bit confusing.

Plane was good but was delayed. probably not AA fault but caused a 1 hour delay. Seating was cramped.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

delayed delayed delayed. was supposed to have a 2 hour layover and very nearly missed my connection.

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

I can say I will not be taking this airline again any time soon. Seat were uncomfortable and too tight. Lack of chair screen and little overhead space.

Plane felt so crowded and tightly packed. The chair itself was not comfortable.

Despite a bumpy flight the pilot was great. The rest of the crew on the other hand couldn’t care less if a passenger would colapse and die. Horrible service, robot like, lifeless…

Book cheap flights from Boston to San Francisco Bay Area

Recent round-trip flight deals

6/12Wed
1 stopSpirit Airlines
28h 20mBOS-OAK
6/19Wed
1 stopSpirit Airlines
25h 39mOAK-BOS
$171
6/12Wed
2 stops
46h 10mBOS-SFO
6/19Wed
2 stops
34h 19mSFO-BOS
$171
6/12Wed
nonstopJetBlue
6h 39mBOS-SFO
9/8Sun
nonstopJetBlue
5h 37mSFO-BOS
$227
8/20Tue
nonstopJetBlue
6h 30mBOS-SFO
8/27Tue
1 stopJetBlue
9h 41mSFO-BOS
$230
8/17Sat
1 stopUnited Airlines
9h 02mBOS-SFO
8/27Tue
nonstopUnited Airlines
5h 45mSFO-BOS
$232
8/24Sat
nonstopUnited Airlines
6h 32mBOS-SFO
9/4Wed
1 stopUnited Airlines
9h 39mSFO-BOS
$240
11/1Fri
nonstopDelta
6h 58mBOS-SFO
11/5Tue
nonstopDelta
5h 38mSFO-BOS
$245
7/2Tue
nonstopDelta
6h 48mBOS-SFO
7/8Mon
nonstopDelta
5h 46mSFO-BOS
$256
7/4Thu
nonstopAlaska Airlines
6h 47mBOS-SFO
7/9Tue
nonstopAlaska Airlines
5h 36mSFO-BOS
$257
7/4Thu
1 stopAlaska Airlines
9h 18mBOS-SJC
7/15Mon
1 stopAlaska Airlines
7h 52mSJC-BOS
$294

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Recent one-way flight deals

8/20Tue
1 stopSpirit Airlines
15h 32mBOS-OAK
$79
8/22Thu
1 stopSpirit Airlines
14h 35mBOS-OAK
$80
8/20Tue
nonstopDelta
6h 56mBOS-SFO
$100
6/12Wed
nonstopUnited Airlines
6h 31mBOS-SFO
$105
6/12Wed
nonstopJetBlue
6h 26mBOS-SFO
$118
8/19Mon
nonstopJetBlue
6h 30mBOS-SFO
$123
7/11Thu
nonstopDelta
6h 52mBOS-SFO
$124
7/4Thu
nonstopAlaska Airlines
6h 47mBOS-SFO
$129
8/16Fri
1 stopUnited Airlines
8h 20mBOS-SFO
$132
9/4Wed
nonstopAlaska Airlines
6h 35mBOS-SFO
$159

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Last minute flights from Boston to San Francisco Bay Area

Last minute flight, train and bus deals

5/28Tue
multi-stop
27h 01mBOS-SJC
6/11Tue
multi-stop
15h 24mSJC-BOS
$336
5/28Tue
multi-stop
24h 11mBOS-SJC
6/11Tue
multi-stop
15h 24mSJC-BOS
$345
5/27Mon
multi-stopDelta
8h 28mBOS-SJC
5/30Thu
multi-stopDelta
9h 55mSJC-BOS
$364
5/27Mon
multi-stopDelta
8h 28mBOS-SJC
5/30Thu
multi-stopDelta
8h 02mSJC-BOS
$365
5/28Tue
nonstopAlaska Airlines
6h 35mBOS-SFO
5/29Wed
nonstopAlaska Airlines
5h 51mSFO-BOS
$367
5/28Tue
multi-stopUnited Airlines
9h 46mBOS-SJC
6/2Sun
multi-stopUnited Airlines
8h 20mSJC-BOS
$376
5/28Tue
nonstopJetBlue
6h 26mBOS-SFO
6/9Sun
nonstopJetBlue
5h 43mSFO-BOS
$403
5/25Sat
nonstopJetBlue
6h 40mBOS-SFO
6/5Wed
nonstopJetBlue
5h 44mSFO-BOS
$411
5/28Tue
nonstopAlaska Airlines
6h 35mBOS-SFO
5/30Thu
nonstopAlaska Airlines
5h 42mSFO-BOS
$412
5/25Sat
nonstopUnited Airlines
6h 29mBOS-SFO
6/5Wed
multi-stopUnited Airlines
9h 49mSFO-BOS
$416

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Boston - San Francisco Bay Area Flights

Departure:

Boston (BOS)United States

Return flight deals:

San Francisco Bay Area - Boston

Cabin classes:

$326
$341
$256
$41