BOS

$140 Find Cheap Flights from San Francisco Bay Area to Boston - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Boston departing on 9/11. 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.
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Flight Deals

Cheap Flights from San Francisco Bay Area to Boston

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco Bay Area to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco Bay Area to Boston

Sat, Sep 5 - Sat, Sep 12
United Airlines Logo
2:10 pm - 1:15 amSJC  San Jose-BOS Boston Logan Intl
8h 05m1 stop Chicago O'Hare Intl
United Airlines Logo
6:00 am - 11:45 amBOS  Boston Logan Intl-SJC San Jose
8h 45m1 stop Chicago O'Hare Intl
$285United Airlines
Wed, Sep 9 - Fri, Sep 11
American Airlines Logo
6:00 am - 7:52 pmSJC  San Jose-BOS Boston Logan Intl
10h 52m1 stop Dallas/Fort Worth
American Airlines Logo
2:34 pm - 10:01 pmBOS  Boston Logan Intl-SJC San Jose
10h 27m1 stop Dallas/Fort Worth
$285American Airlines
Wed, Sep 9 - Thu, Sep 10
Delta Logo
11:41 am - 11:51 pmSJC  San Jose-BOS Boston Logan Intl
9h 10m1 stop Los Angeles
Delta Logo
3:10 pm - 9:22 pmBOS  Boston Logan Intl-SJC San Jose
9h 12m1 stop Atlanta Hartsfield-Jackson
$285Delta
Wed, Sep 9 - Thu, Sep 10
Delta Logo
9:52 am - 11:51 pmSJC  San Jose-BOS Boston Logan Intl
10h 59m1 stop Los Angeles
Delta Logo
1:55 pm - 9:22 pmBOS  Boston Logan Intl-SJC San Jose
10h 27m1 stop Atlanta Hartsfield-Jackson
$285Delta
Sat, Sep 5 - Fri, Sep 11
Southwest Logo
11:00 pm - 12:15 pmSJC  San Jose-BOS Boston Logan Intl
10h 15m1 stop Chicago Midway
Southwest Logo
5:50 am - 1:00 pmBOS  Boston Logan Intl-SJC San Jose
10h 10m1 stop Baltimore/Washington
$285Southwest
Sun, Sep 6 - Fri, Sep 11
Southwest Logo
12:00 pm - 11:50 pmSJC  San Jose-BOS Boston Logan Intl
8h 50m1 stop San Diego
Southwest Logo
11:15 am - 6:55 pmBOS  Boston Logan Intl-SJC San Jose
10h 40m1 stop San Diego
$285Southwest
Sat, Sep 12 - Sat, Sep 19
Multiple Airlines Logo
6:58 pm - 6:09 amSFO  San Francisco-BOS Boston Logan Intl
8h 11m1 stop Portland
Multiple Airlines Logo
12:54 pm - 7:48 pmBOS  Boston Logan Intl-SFO San Francisco
9h 54m1 stop Atlanta Hartsfield-Jackson
$287Multiple Airlines
Tue, Sep 1 - Thu, Sep 3
Multiple Airlines Logo
10:35 pm - 11:47 amSFO  San Francisco-BOS Boston Logan Intl
10h 12m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
8:00 am - 2:45 pmBOS  Boston Logan Intl-SFO San Francisco
9h 45m1 stop San Diego
$287Multiple Airlines
Sat, Sep 5 - Sat, Sep 12
United Airlines Logo
2:10 pm - 1:15 amSJC  San Jose-BOS Boston Logan Intl
8h 05m1 stop Chicago O'Hare Intl
United Airlines Logo
10:38 am - 8:54 pmBOS  Boston Logan Intl-SJC San Jose
13h 16m2 stops Chicago O'Hare Intl Denver Intl
$290United Airlines
Tue, Sep 8 - Tue, Sep 15
American Airlines Logo
10:59 pm - 12:39 pmSFO  San Francisco-BOS Boston Logan Intl
10h 40m1 stop Chicago O'Hare Intl
American Airlines Logo
10:30 am - 4:18 pmBOS  Boston Logan Intl-SFO San Francisco
8h 48m1 stop Chicago O'Hare Intl
$297American Airlines
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Good to know

Low season

January

Cheapest flight

$140
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from San Jose to Boston

FAQs for booking flights from San Francisco Bay Area to Boston

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

    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 San Francisco Bay Area to Boston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from 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 San Francisco Bay Area to Boston?

    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 Boston with an airline and back to San Francisco Bay Area with another airline.

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

    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 Boston from San Francisco Bay Area up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from San Francisco Bay Area to Boston

 
Need help choosing which airline to fly with from San Francisco Bay Area to Boston? 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
SouthwestOverall score based on 4218 reviews
8.6Crew
8.0Comfort
8.1Boarding
7.5Entertainment
7.0Food
Airline reviews

Red eye from San Diego. Temperature of the cabin was way too warm and the air duct flowed very little air.

6.0 GoodGordon, Jul 2026
Read more Southwest reviews

Red eye from San Diego. Temperature of the cabin was way too warm and the air duct flowed very little air.

I think Southwest is the number one airline that anyone can fly I have flown for the first time Frontier and what a joke and their customer service United was a very strange experience I'm only sticking to Southwest from here on out for sure

Great job Southwest! My family doesn't fly often but we felt safe the whole time.

Flight was delayed, full flight and I had to change gates. Southwest flights are always late later in the day.

Was fine, delayed and feels like southwest is always late

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

Alaska has clean planes, modern interiors, and good service. Major drawback is the lack of IFE seat back screens. Otherwise it could really give Delta a run for its money.

Internet was great. It was nice to watch a movie. The crew was very nice.

Thank you to everyone, the crew and pilots.. they were so amazing!!

Some food or at least snacks need to be offered on long flights. I thought I had ordered food for my husband and I prior to the flight, but was told during the flight that I had not. Perhaps, if you must charge extra for food, let people order on board. We did get some food, which evidently others had decided they didn’t want onboard, but it wasn’t very good. We did like the adherence to takeoff and landing times, and the quick return of our luggage.

Pretty smooth ride!… a little tight in the back and would’ve loved to had a movie screen… couldn’t beat the price to the West Coast!

The flight attendants were excellent and I was in the back of the plane. Much much better than recent JetBlue experiences on that route and better than Delta on that route.

I was sitting towards back of plane and the flight attendants I thought spoke unusually loud for an evening flight. They chatted and chatted all night long and it seemed odd to me that they didn’t try to lower their voices. It is annoying as a passenger to hear all their conversations.

very good but no blankets for overnight flight or tv screens…

SFO gate staff super fun playing music and singing having customers waiting to be boarded to participate. Flight staff was nice enough. At least not rude like others I have experienced.

We were told that the plane was new (2 years old) which was evident in that the seats weren’t as worn and the interior had a more modern look. The downside was that the crew said because it was new, WI-FI hadn’t been connected yet. Seems strange that a plane that is 2 years old hasn’t had a chance to connect to WIFI. And the airline knew this going into the flight so it would have been nice if they would have sent communication ahead of time to the passengers so we could download in flight entertainment. The flight was almost 5 hours long. There should have been WIFI for a flight for that duration.

My experience with Delta started with my luggage being found ripped open with items missing. The baggage office told me to bring the bag, and I wanted them to see how I found it. The agent refused, so I carried my bag into the office myself. The agent was nice enough to fix the zipper and gave me a red card with a number to call. I followed the steps; first one department, then the baggage department took over. This took more than two hours on the phone. The return flight was okay. The flight lead was checking her meals and then asked if we wanted anything before departure. However, throughout the flight, I had to ask for things because she was reading her book;which I have no issue with if she had been more attentive. At the end of the flight, the pilot appeared annoyed with the flight lead for not following his instructions regarding a meal he had requested; a chicken sandwichand said, "I asked for that for the flight." On the positive side, my work event in Vegas went well, and now I'm home relaxing.

Awful. There was an unexpected delay of nearly three hours because there were not enough flight attendants. I understand this is likely due to FAA regulations; but in that case, Delta should coordinate with smaller airports such as RDU to have extra flight attendants on the ground and "on call". In addition, this was the second 2-hour+ delay to Boston on this route in one week.

It was strange that the flight attendant was so adamant about having phones turned to airplane mode that he was calling out names from networks shown and waiting until they were all gone. I've never experienced that before, and after already working through an hour+ delay, it felt tone deaf. I take dozens of flights per year and have never experienced anything similar.

Flight was delayed multiple time and for more than 1 hr. My onward flight from BOS to MCI was also delayed. These delays have caused me so much inconvenience and Delta does nothing to ensure flights take off on time. No one knew why the inbound flight was delayed and what was the issue.

This flight was originally delayed by ~45 minutes; which is fine. However, there were additional delays due to late offboarding of the prior flight, unclear issues with the boarding process, delays on the tarmac, and exceptionally long taxiing. None of these issues were communicated proactively. Additionally, the flight had exceptionally rough turbulence, which led to a very uncomfortable flight and no traditional beverage service. Again, this is understandable, but it was not communicated up-front by the flight team.

My flight was delayed by 4 hours in 30 minute increments. The gate agents were amazing but the communication was not. We were told that there was a maintenance issue but they didn't know what it was. That didn't inspire confidence. Then they said they found it and it was fixed and the pilot just needed to sign off. Then the pilot needed to talk to the other pilot from the arriving flight and we'd be fine. Then we were waiting for the pilot to call back. Then the maintenance issue wasn't fixed. Then they decided we were getting a new plane (why didn't they decide this earlier??). Fine. But then they announced we were changing gates AND terminals. And we were boarding in 20 minutes. So we all had to run to the new terminal gate. We could have taken off at that time, but we then had to wait for all the people who rebooked on a different flight to book this flight again. That took 30+ minutes because there was only one gate agent. When everyone ditched this flight, I saw it as an opportunity to upgrade to comfort. Delta, the greedy jerks they are, charged me $121. After their delay, their fault, their issues, couldn't even discount an upgrade. They only handed out $12 meal vouchers for the delay. I can't even get a snack from starbucks for that.

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

It was terrible, if they ran flights on time it would make a big difference.

Delta flight was great from the check in all the way to arrival. However, I had a very bad experience. I requested a wheelchair and the wheelchair employee that went to pick me up from the plane in Boston to bring me to the baggage claims told me I have to pay him. I was under the impression that it was a free service and I usually give tips but the person forced me to pay and since I said no because I was upset with his demand when my daughter walked in to pick me up he demanded payment from my daughter who paid him thinking maybe now it is a charged service.

Everything was great but the difference in paying for comfort + did not seem worth it.

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

Super friendly with lots of drink options an entertainment. Friendly crew.

I like flying first class, and United has a nice one

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

It’s been awhile since I have traveled on United. I, along with my family who were on the flight noted how smoothly everything went . Boarding, flight crew and service was excellent.

Excellent staff helping my 96 year old senior promptly with her oxygen needs

This flight was 2.5 hours delayed due to crew issues. This meant that we arrived after 2 AM. Very very inconvenient and we were not really kept well informed.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

Boarding was quick and efficient. The flight crew were friendly. There were limited food options available on the flight. The pocket guide said there would be salad and sandwich sections available on flights over 3.5 hours. The only food available were snack boxes. And those were limited as well. My flight was over 5 hours. The entertainment system worked well. I had both extra legroom seats and regular coach seats. The seats were not very comfortable. The entertainment controls in the armrest made it difficult to rest my arm without changing the channel on my neighbors TV. Overall, my experience was mediocre.

Entertainment and wifi were very sub-par - audio issues and no wifi

I was denied a plastic fork to eat my food and was told plastic forks are for paying customers who buy Jet Blue’s food. So I had to make a utensil out of a cup so nourish my body. Like a refugee. Because decency is dead.

Flights with JetBlue from San Diego to Boston are a miserable experience. The flight was delayed about 1.5 hours due to “weather” supposedly but the flights for other airlines left on time so it just have been some kind of weather that only affects JetBlue. I had a small carry on - purse. The crew stored it in a bin 2 rows down from me because they were using the bin next to my seat for other people’s stuff. The TV screen in the emergency row seats does not work. It just was awful from start to finish. When we landed, we had to sit inside the plane for a very long time because the plane had to be moved to a different gate.

Rude crew member. She seemed annoyed at me without me saying a single word. Also loudly admonished me for having my bag next to my seat instead of tucked away before landing. Just telling me to put it away and guiding me without giving me a lecture would have been enough.

The check in and boarding process was a bit of a cluster. Two people at the counter to check in, three random lines that nobody knew which was for what, and people kept getting shuffled from one line to another for no apparent reason because then they’d get shuffled back and end up getting out further back in the line than they were originally. I only had to hand my already checked bag over and it took 45 minutes. I was never assigned a seat so when I tried to board I was pulled out of line again while someone had to try to manually assign me a seat. During the flight I got up to go to the bathroom, and there was an attendant in the aisle offering pillows etc and it was a 30 min wait unbuckled standing by the bathrooms because she said I couldn’t go past her. First and last time flying jet blue to be honest.

Great! I love Jet Blue. My favorite airline! Very efficient, clean and timely.

Always like Jet Blue! It seems, however, that people are getting bigger & seats are getting smaller! We had a very full flight and I couldn't get an aisle seat like I always do. I wish there were more leg room. People sitting next to me were very nice though so it was fine to disturb them if I needed to use the restroom. Otherwise the flight was fine but a bit long.

None of the in flight Direct TV worked. A better selection of Shows would have been better. The baggage was s low. Otherwise we enjoyed our flight!

Seat was surprisingly comfortable and roomy. I like the onboard “pantry”. Lavatory was kept very clean.

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