There are most likely no direct flights on the San Francisco — Boston route
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A non-stop flight is the most convenient and comfortable way to fly from San Francisco to Boston, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
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There are most likely no direct flights on the San Francisco — Boston route
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
San Francisco — Boston
06/14/2026
Departure
Direct flight
UA1372
starting at $328
San Francisco — Boston
06/08/2026
Departure
Direct flight
UA2647
starting at $316
San Francisco — Boston
06/09/2026
Departure
Direct flight
UA1015
starting at $340
San Francisco — Boston
06/10/2026
Departure
Direct flight
UA2356
starting at $317
San Francisco — Boston
06/11/2026
Departure
Direct flight
B6734
starting at $375
San Francisco — Boston
06/18/2026
Departure
Direct flight
B61034
starting at $449
San Francisco — Boston
06/18/2026
Departure
Direct flight
UA2356
starting at $793
San Francisco — Boston
06/19/2026
Departure
Direct flight
B61534
starting at $444
San Francisco — Boston
06/07/2026
Departure
Direct flight
B6434
starting at $352
San Francisco — Boston
06/23/2026
Departure
Direct flight
B6434
starting at $372
starting at $165
starting at $210
starting at $138
starting at $168
starting at $170
starting at $207
starting at $243
More than 7 airlines operate flights from San Francisco to Boston, including United Airlines, JetBlue Airways, Alaska Airlines, Southwest Airlines, American Airlines, Frontier Airlines, and Sun Country Airlines. This is a popular route, so passengers can choose tickets based on budget and preferences. Ticket prices start from $138, 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.
The cheapest one-way flight from San Francisco to Boston departs on 09/07/2026, is operated by Alaska Airlines and costs $138
The cheapest roundtrip flight from San Francisco to Boston departs on 07/23/2026, is operated by Southwest Airlines and costs $395
Fastest flight from San Francisco to Boston takes
There are direct flights on this route 6 days a week: Su, Mo, Tu, We, Th, and Fr
The distance between San Francisco and Boston is 4333km (2686 miles). There are 74 direct flights from San Francisco to Boston. The time difference between San Francisco and Boston is 3h. Flights from San Francisco begin at 7:00 AM. The latest flight from San Francisco departs at 11:20 PM
The cheapest flight ticket from San Francisco to Boston according to data for the last 48 hours costs $138
Often the best time to buy tickets from San Francisco to Boston is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from San Francisco to Boston can be found flying in these months: July, August, September.
The fastest flights from San Francisco to Boston start from 5 hours 56 minutes in the air.
The following airlines operate direct flights on the route San Francisco — Boston: United Airlines, JetBlue Airways
The cost of a one-way flight from San Francisco to Boston ranges from $170 (July 2026) to $207 (June 2026). On average, the ticket price is about $185–$187.
Tickets from San Francisco to Boston cost roughly the same any month. This is convenient: you can plan your trip based on your schedule rather than prices.
There is a slight difference: it's a bit cheaper in July 2026–August 2026 (averaging $177) and slightly more in June 2026–July 2026 ($188). But overall, the difference is small.
On this route, you don't need to target specific months — prices are stable. The difference between the cheapest and most expensive period is only 6%. Book whenever it's convenient.
Monthly price variation is just 7%. Ticket costs on this route are among the most predictable.
