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 Boston to San Francisco. 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 Boston to San Francisco, 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.
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.
The route Boston — San Francisco is served by several airlines: United Airlines, JetBlue Airways, and Alaska Airlines. This gives passengers more freedom in choosing flights. You can consider not only the price but also schedules, baggage policies, and onboard service. Our service compares all offers so you can find tickets from $114 and choose the most convenient option. Thanks to airline competition, you may also find promotional fares or special offers, helping you save even more. Plan your trip in advance and choose the best flights without overpaying.
Boston — San Francisco
06/27/2026
Departure
Direct flight
UA1074
starting at $485
Boston — San Francisco
06/28/2026
Departure
Direct flight
B61633
starting at $525
Boston — San Francisco
07/10/2026
Departure
Direct flight
UA323
starting at $223
Boston — San Francisco
07/31/2026
Departure
Direct flight
UA2441
starting at $224
Boston — San Francisco
07/15/2026
Departure
Direct flight
B6233
starting at $239
Boston Logan International (BOS) is the city’s primary international gateway and a full-service hub for several legacy carriers, with frequent transatlantic, transcontinental and regional flights. It’s located on Boston Harbor about 3–5 miles (5–8 km) from downtown, with travel times typically 15–30 minutes by car depending on traffic. Public options include the MBTA Blue Line + free Massport shuttle (roughly 20–30 minutes, low fares) and Logan Express buses from suburbs (30–60 minutes, moderate fares). Taxis and app rides can be convenient but subject to peak surcharges. Pros: broad route network and strong ground-transport links; cons: can be busy and may have higher parking and concession prices compared with smaller airports.
JetBlue Airways
Sa
starting at $418
United Airlines
Sa
starting at $1,106
The airlines on the Boston — San Francisco route each fly on specific days: JetBlue Airways and United Airlines fly on Saturday.
The cheapest one-way flight from Boston to San Francisco departs on 07/15/2026, is operated by JetBlue Airways and costs $114
The cheapest roundtrip flight from Boston to San Francisco departs on 08/17/2026, is operated by Frontier Airlines and costs $265
Fastest flight from Boston to San Francisco takes 6h 34m
There are direct flights on this route 4 days a week: Su, We, Fr, and Sa
The distance between Boston and San Francisco is 4333km (2686 miles). There are 71 direct flights from Boston to San Francisco. The time difference between Boston and San Francisco is 3h. Flights from Boston begin at 6:00 AM. The latest flight from Boston departs at 8:21 PM
We couldn't find any special offers for flights from Boston to San Francisco
San Francisco International (SFO) acts as the region’s primary international and transcontinental hub, handling most long-haul, premium and full-service carriers alongside some low-cost operators. Located about 13 miles south of downtown San Francisco, it’s typically reached in 20–35 minutes by BART or 25–45 minutes by taxi/rideshare depending on traffic; BART fares are usually in the mid single-digit range while taxis and shared rides can be noticeably higher. The airport offers extensive lounges and amenities and is generally convenient for connecting flights, though peak-hour traffic and terminal size can add transit time. For short-haul and budget options, Oakland (OAK) and San Jose (SJC) can be cheaper or more convenient alternatives for certain routes.
The cheapest flight ticket from Boston to San Francisco according to data for the last 48 hours costs $114
Often the best time to buy tickets from Boston to San Francisco is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Boston to San Francisco can be found flying in these months: June, August, July.
The fastest flights from Boston to San Francisco start from 6 hours 34 minutes in the air.
The following airlines operate direct flights on the route Boston — San Francisco: United Airlines, JetBlue Airways
The minimum one-way ticket price from Boston to San Francisco is $151 (June 2026), while the maximum is $401 (May 2027). On average, a ticket costs $208–$329.
Tickets from Boston to San Francisco are getting more expensive each month. From June 2026 to May 2027, the increase reached 166%, with prices now at $401. It's unlikely to get cheaper than the current level.
The most significant price increase was from June 2026 to May 2027 — up 166%. The best time to fly is June 2026–July 2026, when the average price is $155. In October 2026–May 2027, tickets cost around $286.
Given the rising prices, it's best not to delay your purchase. Flying in June 2026–July 2026 can save you up to 46% compared to the most expensive months.
Price variation across months on this route is 46.6%. Your choice of departure month significantly affects the total flight cost.
