C$ 257 Find Cheap Flights from Boston to San Francisco – Compare and Save

These are the earliest and latest flight times available from Boston to San Francisco:

• Earliest: departs at 6:00 am and lands at 12:51 pm
• Latest: departs at 8:59 pm and lands at 3:50 am.

The flight takes about 6h 51m.

Two cabin classes are available on flights from Boston to San Francisco:

• Economy Class
• Business Class

A direct flight from Boston to San Francisco takes 6h 51m, covering 6,981 km.

No, a passport is not required for this domestic route, but you will need another form of identification, such as a driver's licence.

Round-trip flights from Boston to San Francisco range from C$ 472 to C$ 774, with an average of C$ 595 over the past 12 months. Anything below C$ 472 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 39% above the C$ 595 route average. Book 15 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 450 round-trip via Atlanta Hartsfield-Jackson (ATL), compared to C$ 598 for direct.

United Airlines is slightly above the route average for timely arrivals, while Delta has a lower on-time arrival rate. On-time arrival rates on Boston to San Francisco flights are:

• United Airlines: 80% on time
• Delta: 78% on time
• JetBlue: 75% on time

On average, flights on this route are punctual 77% of the time.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 49–C$ 140 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

The Airbus A318/A319/A320/A321 family is used most often on this route, operated mainly by JetBlue. Other aircraft seen on the route include Airbus A321neo variants.

Morning is the busiest departure period on Boston to San Francisco flights, with 54% leaving in that window. Evening departures account for 30%, Afternoon flights for 16%, and Night flights for 0%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 466 to C$ 3,012. That means the highest observed fare was about 6x higher than the lowest one.

Two airlines offer in-flight Wi-Fi on Boston to San Francisco flights:

• JetBlue
• Delta

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

One-way fares from Boston to San Francisco are currently lower than usual. Average one-way flight prices are about C$ 259, which is 34% below the typical average for this route.

San Francisco Airport (SFO) hosts 5 major car rental companies, with daily rates averaging C$ 88 for economy cars. Top options include:

• Europcar
• Thrifty
• Dollar
• Hertz
• Fox

Flights from Boston to San Francisco usually depart from Boston Logan Intl (BOS) and arrive at San Francisco (SFO).

Night flights have the fewest delays on this route, while evening departures tend to have the most.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Boston to San Francisco route, 23% of flights were delayed in the past three months, with delays averaging 2h 49m.

One-stop flights from Boston to San Francisco most commonly connect through:

• Atlanta Hartsfield-Jackson (ATL) – 42% of one-stop connections
• Chicago O'Hare Intl (ORD) – 10% of one-stop connections
• Philadelphia (PHL) – 6% of one-stop connections
• San Diego (SAN) – 5% of one-stop connections

Yes. Flexible dates can save you up to 24% on flights from Boston to San Francisco. Wednesday is the cheapest departure day at C$ 541 round-trip on average, while Monday is the most expensive at C$ 703, a difference of C$ 162.

KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

3 airlines operate flights between Boston and San Francisco. The airlines offering direct flights on this route include:

• JetBlue
• United Airlines
• Delta

Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 7h 32m, compared with 7h 42m via Lambert-St Louis (STL) and 8h 17m via Salt Lake City (SLC).

San Francisco is 3 hours behind Boston (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in San Francisco are Fisherman's Wharf, Moscone Center, and Union Square. These are among the most viewed places in San Francisco on KAYAK.

Among airlines operating Boston to San Francisco flights:

• JetBlue: offers extra legroom; offers free seat selection
• United Airlines: offers extra legroom; offers free seat selection
• Delta: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• JetBlue: a carry-on bag and a checked bag in Economy Class
• United Airlines: a carry-on bag and a checked bag in Economy Class
• Delta: a carry-on bag and a checked bag in Economy Class

Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.

At San Francisco Airport, pets that are traveling in the baggage compartment will be delivered at the baggage claim area. If you instead brought your pet using your airline’s cargo service, you must contact your airline directly. Each airline has its own off-site cargo office location where you can retrieve your pet after your flight.

The airport offers a free cell phone lot that is located near the long-term parking lot. Drivers are advised to park there until your flight arrives, since there is no parking of any kind at the terminal building. The maximum waiting time allowed in the cell phone lot is sixty minutes.

There is a full United States Postal Branch at the airport just north of the airport, and there are mailboxes located outside each of the terminal buildings. If you are simply in need of stamps, there are stamp machines located on the Departures level of all of the terminal buildings.

Upon arrival at San Francisco International, you should collect all of your bags and then request your ride. Once you have requested your ride you may meet Uber Pool and Express Pool rides on level 5 of the domestic garage and all other rides, such as Uber Black and SUV, can be met at the departures level located on the second floor of the domestic terminal.