Cheap Flights from San Francisco to Boston Starting at $122
Helping travelers to find the best flight offers
Cheapest flights from San Francisco to Boston
Find great deals from San Francisco to Boston with one quick search — we scan over 700 airlines, 50+ travel agencies and 5+ top booking systems to uncover the best prices, schedules and travel conditions for your trip. Compare flights side-by-side and book confidently knowing you’ve explored the widest range of options for nonstop, connecting and flexible itineraries.
Remember that on average the ideal time to book flights is 2 months before departure!
Fly direct from San Francisco to Boston for the fastest, most convenient way to cross the country—perfect for squeezing business meetings or a long weekend into your schedule. Direct flights get you there quicker and with less hassle, though you may sometimes find cheaper connecting options if you’re flexible on time. Book a nonstop and enjoy more time exploring Boston and less time in transit.
Schedule of direct flights from San Francisco to Boston
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from San Francisco to Boston:
San Francisco airports overview
Boston airports overview
Frequently asked questions (FAQ)
Answers to questions about the route that travelers are most interested in.
Special offers and sales on air tickets from San Francisco to Boston
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
Alternative routes
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Cheapest one way flight
$122
Alaska Airlines
Direct flight
5h 41m
11/05/2025
The cheapest one-way flight from San Francisco to Boston departs on 11/05/2025, is operated by Alaska Airlines and costs $122
Cheapest round trip flight
$232
JetBlue Airways
Direct flight
12h 23m
12/08/2025
The cheapest roundtrip flight from San Francisco to Boston departs on 12/08/2025, is operated by JetBlue Airways and costs $232
The fastest flight
5h 31m
Fastest flight from San Francisco to Boston takes 5h 31m
Direct flights
Several times a week
There are direct flights on this route 6 days a week: Mo, Tu, We, Th, Fr, and Sa
Earliest flight
6:05 AM
Latest flight
11:30 PM
Average flight duration
6h 40m
Direct flights count
135
Distance
4333km
Timezone difference
3h
The distance between San Francisco and Boston is 4333km (2686 miles). The average flight duration is 6h 40m. There are 135 direct flights from San Francisco to Boston. The time difference between San Francisco and Boston is 3h. Flights from San Francisco begin at 6:05 AM. The latest flight from San Francisco departs at 11:30 PM
More than 5 airlines operate flights from San Francisco to Boston, including United Airlines, Alaska Airlines, JetBlue Airways, American Airlines, and Frontier Airlines. This is a popular route, so passengers can choose tickets based on budget and preferences. Ticket prices start from $122, and our service lets you instantly compare all options. The variety of offers simplifies planning: you can choose budget fares or more comfortable options with baggage included or extra services. We help you find the best deals so your trip is cost-efficient.
San Francisco International Airport (SFO) is the Bay Area’s primary international gateway and a major hub for full-service carriers, so fares can range from premium transpacific tickets to competitively priced domestic connections. Located about 13 miles south of downtown San Francisco, it’s typically reachable in 20–40 minutes by car depending on traffic; taxi and rideshare trips often cost in the $35–70 range. Public transit options include BART (about 30–40 minutes to downtown) and SamTrans buses (longer but cheaper), while airport shuttles provide mid-range convenience. Pros: extensive lounge and dining options, frequent long‑haul flights and good ground transit links. Cons: busy terminals and variable traffic can add time and occasional extra cost.
Boston is served primarily by Logan International Airport (BOS), a major New England gateway and full-service international hub handling long-haul carriers alongside U.S. legacy airlines and some global alliances. Located on Boston Harbor about 3–5 miles (10–20 minutes by car) from downtown, Logan typically offers a mix of premium and everyday fares, with budget options available on several low-cost carriers. Ground links include the MBTA Silver Line bus to South Station (about 20–30 minutes; fare typically under $5), taxis and rideshares (10–25 minutes depending on traffic; fares vary), and shuttle services to suburbs. Pros: convenient proximity to the city and extensive flight choices; cons: can be busy and subject to coastal weather and traffic delays.
We couldn't find any special offers for flights from San Francisco to Boston
How much is the cheapest flight ticket from San Francisco to Boston?
The cheapest flight ticket from San Francisco to Boston according to data for the last 48 hours costs $122
When is the best time to buy air tickets on the route San Francisco — Boston?
Often the best time to buy tickets from San Francisco to Boston is 2 months before departure.
When is the cheapest time of year to fly from San Francisco to Boston?
Based on statistics over the past years, the lowest prices for flights from San Francisco to Boston can be found flying in these months: November, January, October.
How long does it take to fly from San Francisco to Boston?
The fastest flights from San Francisco to Boston start from 5 hours 31 minutes in the air.
Which airline can fly direct from San Francisco to Boston?
The following airlines operate direct flights on the route San Francisco — Boston: United Airlines, Alaska Airlines, JetBlue Airways
The cost of a one-way flight from San Francisco to Boston ranges from $124 (November 2025) to $341 (June 2026). On average, the ticket price is about $189–$354.
