Cheap flights from Boston to San Francisco Bay Area from $108
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to San Francisco Bay Area departing on 7/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Boston to San Francisco Bay Area
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to San Francisco Bay Area?
In general, September is the cheapest month to fly from Boston to San Francisco Bay Area. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $311. If you aren’t able to travel to San Francisco Bay Area during the month of September, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $331.
What is the cheapest day to depart on your flight to San Francisco Bay Area?
On average, the least expensive day to fly to San Francisco Bay Area from Boston is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $370. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $531.
What is the cheapest time of day to depart on your flight to San Francisco Bay Area?
Our most recent data shows that the best time of day to fly to San Francisco Bay Area is in the evening. Flights from Boston to San Francisco Bay Area during this time can be as low as $322. In contrast, the most expensive time of day to depart to San Francisco Bay Area is at noon when prices are around $550.
What is the cheapest Boston Logan Intl to San Francisco Bay Area flight route?
Fly from Boston Logan Intl to San Francisco for the best Boston Logan Intl - San Francisco Bay Area flight prices
How far in advance should I book a flight to San Francisco Bay Area?
You are more likely to see cheaper flights to San Francisco Bay Area from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco Bay Area for around $355 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco Bay Area from Boston for as low as $328 on momondo.
What cabin class options are available on Boston Logan Intl to San Francisco Bay Area flights?
There are 4 cabin classes available to choose from on Boston Logan Intl to San Francisco Bay Area flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Boston Logan Intl to San Francisco Bay Area?
Alaska Airlines, United Airlines, and Southwest are the most popular carriers operating from Boston Logan Intl to San Francisco Bay Area
What airlines fly to San Francisco Bay Area?
JetBlue, United Airlines and Delta are the top three most popular airlines that fly to San Francisco Bay Area from Boston according to our data. JetBlue is the first choice among our users, with 39% of people opting to fly with this airline when traveling to San Francisco Bay Area. Keep in mind that there are 10 different airlines that fly to San Francisco Bay Area on a routine basis, so you have a few additional options to choose from.
How many flights depart from Boston to San Francisco Bay Area on average per day?
As of June 2025, there are 54 flights per day flying from Boston to San Francisco Bay Area. The most common time of day flights depart is 8:00PM, with 46% of flights taking off at noon.
How many flights depart from Boston to San Francisco Bay Area on average per week?
382 flights are operational weekly from Boston to San Francisco Bay Area as of June 2025. The most popular departure day for this route is Wed, with 16% of flights per week taking off on this day.
Cheap Boston to San Francisco Bay Area flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Boston to San Francisco Bay Area
Best Price Found | $108 |
|---|---|
Fastest flight time | 6h 28m |
Direct flights | Every day |
Airports in San Francisco Bay Area | 3 airports |
When did momondo last update prices for flights from Boston Logan Intl Airport to San Francisco Bay Area?
Prices for flights from Boston Logan Intl Airport to San Francisco Bay Area are refreshed on a daily basis.
How many operators does momondo search for flights from Boston Logan Intl Airport to San Francisco Bay Area?
As of June 2025, there are 10 operators available to choose from for flights from Boston Logan Intl Airport to San Francisco Bay Area.
How old do you have to be to fly from Boston Logan Intl Airport to San Francisco Bay Area?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to San Francisco Bay Area.
What documentation or ID do you need to fly to San Francisco Bay Area?
The required travel and health documents for your San Francisco Bay Area trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Francisco Bay Area. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Boston to San Francisco Bay Area?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Boston to San Francisco Bay Area is Airbus A321neo (11.13% of total bookings). The next most popular plane models are Airbus A220-300 (8.55%), Airbus A321-100/200 (7.73%), and Airbus A320-100/200 (6.88%).
Best airlines flying from Boston to San Francisco Bay Area
Compare and see reviews for airlines that fly from Boston to San Francisco Bay Area with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $84 | Free Cancellation | Rating 5.9 3,301 reviews | |||
| PriceFrom $99 | Free Cancellation | Rating 7.3 2,924 reviews | |||
| PriceFrom $129 | Free Cancellation | Rating 7.8 2,507 reviews | |||
| PriceFrom $149 | Free Cancellation | Rating 8.0 4,280 reviews | |||
| PriceFrom $150 | Free Cancellation | Rating 6.9 345 reviews | |||
| PriceFrom $152 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $164 | Free Cancellation | Rating 6.3 8,066 reviews | |||
| PriceFrom $168 | Free Cancellation | Rating 8.0 7,964 reviews | |||
| PriceFrom $226 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $227 | Free Cancellation | Rating 7.4 8,810 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Boston to San Francisco Bay Area?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Boston to San Francisco Bay Area. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Boston to San Francisco Bay Area with flexible booking policies on momondo?
Yes. All flights to San Francisco Bay Area from Boston on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Boston to San Francisco Bay Area?
Once you have performed a search for Boston to San Francisco Bay Area flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Boston to San Francisco Bay Area right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Boston to San Francisco Bay Area flights. All you need is a valid email address and we will do the rest; it is that quick and easy.