C$ 226 Find Cheap Flights from San Francisco to Boston – Compare and Save

Among airlines operating San Francisco to Boston 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.

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

• United Airlines
• JetBlue
• Delta

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

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

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

Only Economy Class is available on flights from San Francisco to Boston.

On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 240 round-trip via Baltimore/Washington (BWI), compared to C$ 614 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 48–C$ 138 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.

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

• Philadelphia (PHL) – 27% of one-stop connections
• Atlanta Hartsfield-Jackson (ATL) – 18% of one-stop connections
• San Diego (SAN) – 9% of one-stop connections
• Denver Intl (DEN) – 7% of one-stop connections

Philadelphia (PHL) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 19% on the San Francisco to Boston route. Wednesday is the cheapest departure day at C$ 545 round-trip on average, while Sunday is the most expensive at C$ 667, a difference of C$ 123. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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 San Francisco to Boston route, 20% of flights were delayed in the past 3 months, with delays averaging 2 hours 49 minutes.

Morning is the busiest departure period on San Francisco to Boston flights, with 43% leaving in that window. Afternoon departures account for 36%, Night flights for 21%, and Evening flights for 0%.

Some of the most popular sights in Boston are Fenway Park, TD Garden, and Back Bay. These are among the most viewed places in Boston on KAYAK.

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

• Earliest: departs at 6:00 am and lands at 11:47 am
• Latest: departs at 11:59 pm and lands at 5:46 am.

The flight takes about 5h 47m.

Last-minute fares on this route – booked within 2 weeks of departure – run 33% above the route average of C$ 609. Book 4 weeks before departure for the lowest fares.

A direct flight from San Francisco to Boston takes 5h 47m, covering 6,981 km.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 437 to C$ 2,880. That means the highest observed fare was about 7x higher than the lowest one.

One-way fares from San Francisco to Boston are currently lower than usual. Average one-way flight prices are about C$ 243, which is 36% below the typical average for this route.

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

• Alaska Airlines: 84% on time
• United Airlines: 83% on time
• Delta: 81% on time

On average, flights on this route are punctual 80% of the time.

Evening flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 8h 05m, compared with 8h 12m via Baltimore/Washington (BWI) and 8h 24m via Phoenix Sky Harbor Intl (PHX).

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

Boston Logan Intl Airport (BOS) hosts 5 major car rental companies, with daily rates starting from around C$ 32 for economy cars. Top options include:
· Dollar
· Hertz
· Budget
· Thrifty
· Sixt

Round-trip flights from San Francisco to Boston range from C$ 473 to C$ 797, with an average of C$ 609 over the past 12 months. Anything below C$ 473 counts as a good deal.

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

• • JetBlue
• • Delta