Direct (nonstop) flights from Boston to San Francisco
3 airlines fly nonstop from Boston Logan International Airport (BOS) to San Francisco International (SFO). It's 2,704 miles (4,351 km), about 6h 45m 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 Boston to San Francisco with one stop · direct emits 413 kg CO₂ per passenger
Looking for the return flight?
SFO → BOS: Flights from San Francisco to BostonOther direct flights from Boston
Direct flights from San Francisco (SFO)
Frequently Asked Questions
How long is the direct flight from Boston to San Francisco?
A nonstop flight from Boston (BOS) to San Francisco (SFO) takes approximately 6 hours and 45 minutes. The distance is 2,704 miles (4,351 km).
Which airlines fly nonstop from Boston to San Francisco?
3 airlines: JetBlue Airways, Delta Air Lines, United Airlines.
Is there a nonstop flight from Boston to San Francisco?
Yes. 3 airlines: JetBlue Airways, Delta Air Lines, United Airlines.
How far is Boston from San Francisco?
The flight distance from Boston to San Francisco 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 Boston to San Francisco?
At 6h 45m, this route typically uses wide-body aircraft — Boeing 777, 787, or Airbus A330/A350. Varies by airline.
What is the carbon footprint of a flight from Boston to San Francisco?
Roughly 413 kg CO2 per passenger one-way. That's about the same as driving 2,065 km.
Is the return flight from San Francisco to Boston 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 Boston to San Francisco?
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 Boston Logan International Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.