Direct (nonstop) flights from San Francisco to Boston
3 airlines fly nonstop from San Francisco International (SFO) to Boston Logan International Airport (BOS). It's 2,704 miles (4,351 km), about 5h 50m in the air. Operated by JetBlue Airways, Delta Air Lines, United Airlines.
JetBlue Airways
Delta Air Lines
United Airlines
Route data last updated: May 27, 2026
Airlines with non-stop flights
B6
JetBlue Airways
DL
Delta Air Lines
UA
United Airlines
Alternative Routes
Other ways to fly from San Francisco to Boston with one stop · direct emits 413 kg CO₂ per passenger
Looking for the return flight?
BOS → SFO: Flights from Boston to San FranciscoOther direct flights from San Francisco
Direct flights from Boston (BOS)
Frequently Asked Questions
How long is the direct flight from San Francisco to Boston?
A nonstop flight from San Francisco (SFO) to Boston (BOS) takes approximately 5 hours and 50 minutes. The distance is 2,704 miles (4,351 km).
Which airlines fly nonstop from San Francisco to Boston?
3 airlines: JetBlue Airways, Delta Air Lines, United Airlines.
Is there a nonstop flight from San Francisco to Boston?
Yes. 3 airlines: JetBlue Airways, Delta Air Lines, United Airlines.
How far is San Francisco from Boston?
The flight distance from San Francisco to Boston is 2,704 miles (4,351 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Los Angeles.
What type of aircraft flies from San Francisco to Boston?
At 5h 50m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from San Francisco to Boston?
Roughly 413 kg CO2 per passenger one-way. That's about the same as driving 2,065 km.
Is the return flight from Boston to San Francisco also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from San Francisco to Boston?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at San Francisco International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.