starting at $168
starting at $166
starting at $126
starting at $149
starting at $183
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from San Francisco to Boston. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
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.
The only airline operating direct flights from San Francisco to Boston is JetBlue Airways. Flights operate every day.
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Answers to questions about the route that travelers are most interested in.
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.
More than 5 airlines operate flights from San Francisco to Boston, including United Airlines, JetBlue Airways, Frontier Airlines, American Airlines, and Alaska Airlines. This is a popular route, so passengers can choose tickets based on budget and preferences. Ticket prices start from $126, 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.
starting at $168
starting at $166
starting at $126
starting at $149
starting at $183
San Francisco — Boston
08/15/2026
Departure
Direct flight
UA796
starting at $382
San Francisco — Boston
08/17/2026
Departure
Direct flight
UA796
starting at $325
San Francisco — Boston
09/23/2026
Departure
Direct flight
UA2356
starting at $229
San Francisco — Boston
11/11/2026
Departure
Direct flight
UA2647
starting at $244
San Francisco — Boston
08/27/2026
Departure
Direct flight
B6434
starting at $240
San Francisco — Boston
09/02/2026
Departure
Direct flight
UA1372
starting at $395
San Francisco — Boston
09/10/2026
Departure
Direct flight
B6134
starting at $167
San Francisco — Boston
09/15/2026
Departure
Direct flight
B6434
starting at $223
JetBlue Airways
Every day
starting at $162
The cheapest one-way flight from San Francisco to Boston departs on 09/16/2026, is operated by Frontier Airlines and costs $126
There is no information about the cheapest roundtrip flight from San Francisco to Boston
Fastest flight from San Francisco to Boston takes 5h 36m
There are direct flights on this route 5 days a week: Mo, Tu, We, Th, and Sa
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
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.
The cheapest flight ticket from San Francisco to Boston according to data for the last 48 hours costs $126
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: September, August, October.
The fastest flights from San Francisco to Boston start from 5 hours 36 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 $120 (September 2026) to $148 (November 2026). On average, the ticket price is about $134–$147.
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 August 2026–September 2026 (averaging $122) and slightly more in October 2026–November 2026 ($147). 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 17%. Book whenever it's convenient.
Monthly price variation is just 9.6%. Ticket costs on this route are among the most predictable.
