Direct Flights from SFO to BOS: Find the Best Deals & Flight Times
Cheapest flight found
$199
Last updated Mar 13, 2026
Prices by Month
Price History
Tracking the May 7, 2026 departure — the cheapest date we found.
Price Behavior: SFO → BOS
Based on 6 months of fare data collected by Trip Manta.
Lowest Fare
$199
Highest Fare
$309
Median Fare
$234
Price Spread
$111
Prices fluctuate moderately — tracking can help you catch dips.
Cheapest month to fly: May 2026 (from $199)
Most expensive month: July 2026 (from $309)
Biggest price drop caught: $65 between consecutive checks
Most frequent cheapest airline: United
What This Means for You
Flights from San Francisco to Boston range from $199 to $309, a $111 spread across the months we track. If your dates are flexible, May 2026 tends to have the lowest fares. Prices move enough that tracking can save you money — drops often last only a few hours before the algorithm adjusts back up. We have caught drops as large as $65 between hourly checks on this route.
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From
San Francisco (SFO)
To
Boston (BOS)
Airport Information
San Francisco (SFO)
San Francisco International Airport (SFO) serves as a major gateway to the Pacific and is a primary hub for United Airlines and Alaska Airlines. Known for its impressive art installations and world-class dining options, SFO offers passengers a unique pre-flight experience that includes yoga rooms and a dedicated aviation museum. Located 13 miles south of downtown, it is easily accessible via the BART rapid rail system.
Boston (BOS)
Boston Logan International Airport (BOS) is conveniently located just a few miles from the city center, making it one of the most accessible major airports in the United States. It features four passenger terminals connected by a shuttle bus system and the Silver Line bus service. Logan is a primary hub for JetBlue and a major focus city for Delta, offering many amenities including local seafood eateries.
Frequently Asked Questions
How long is the average flight from SFO to BOS?
The average direct flight time from San Francisco to Boston is approximately 5 hours and 30 minutes for the eastbound journey, while the return flight west can take over 6 hours due to headwinds.
Which airlines offer non-stop flights between SFO and BOS?
Currently, United Airlines, JetBlue, Delta Air Lines, and Alaska Airlines offer regular non-stop service between San Francisco International and Boston Logan.
What is the time difference between San Francisco and Boston?
Boston is in the Eastern Time Zone (ET), which is 3 hours ahead of the Pacific Time Zone (PT) in San Francisco.
When is the best time to book a flight for the lowest price?
For this transcontinental route, it is generally recommended to book at least 3 to 6 weeks in advance to secure the best rates, particularly if traveling during peak graduation or holiday seasons.
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