Flight route guide
Flights from BOS to SFO
From $129 rt
Planning a trip from Boston to San Francisco? Flitura searches published and consolidator fares from BOS to SFO in one place. Recent searches found fares from $129 rt. Typical domestic flight time is 2h – 5h nonstop on most US routes. Use flexible dates to spot lower fares on nearby days.
Sample fares found recently — search above for live prices on your dates.
Search live BOS → SFO faresTypical flight time
2h – 5h nonstop on most US routes
Best time to book
3–6 weeks before departure
Often cheapest days
Tuesday, Wednesday, and Saturday
Best months to fly
January–February and September–October are often cheaper for US domestic travel outside major holidays.
Flying from Boston (BOS) to San Francisco (SFO)
San Francisco is served through San Francisco International Airport (SFO). Review nonstop and 1-stop options above to balance price and total travel time.
Major holidays and summer weekends usually mean higher fares — midweek often saves more.
Alternative airports
If Boston (BOS) or San Francisco (SFO) has multiple airports in the metro, check nearby options in your search for better fares.
Airlines on BOS–SFO
- American Airlines
- Delta Air Lines
- United Airlines
- Southwest Airlines
- JetBlue Airways
Tips for cheaper Boston to San Francisco flights
- •Book 3–6 weeks ahead for the best balance of price and seat choice on BOS–SFO.
- •January–February and September–October are often cheaper for US domestic travel outside major holidays.
- •Tuesday and Wednesday departures are often cheaper than Friday or Sunday peaks.
- •If Boston (BOS) or San Francisco (SFO) has multiple airports in the metro, check nearby options in your search for better fares.
- •Set fare alerts and save your search — incomplete bookings can be resumed on Flitura.
- •US domestic tickets may allow free carry-on; checked bag fees vary by fare class.
Frequently asked questions
How long is the flight from Boston to San Francisco?
Most itineraries from BOS to SFO take 2h – 5h nonstop on most US routes. Exact duration depends on nonstop vs connecting flights and wind conditions.
When is the cheapest time to fly from BOS to SFO?
Midweek travel and booking a few weeks in advance usually beat last-minute prices. Major holidays and summer weekends usually mean higher fares — midweek often saves more. Shoulder seasons (spring and fall) often offer savings.
Which airlines fly from Boston to San Francisco?
Potential options for this market may include American Airlines, Delta Air Lines, United Airlines, Southwest Airlines, but schedules change and not every airline operates every date. Search live results above to confirm the operating carrier and any codeshare.
Are taxes and fees included in the displayed fare?
Mandatory taxes are included where shown at checkout. Optional extras such as seats, bags, and travel protection are itemized before you pay.
Can I book one-way flights from BOS to SFO?
Yes — switch to One-way in the search box above or check round-trip bundles to see which saves more for your dates.
What is the cheapest fare from BOS to SFO?
Recent searches on Flitura found round-trip fares from $129 on this route. Live prices change daily — search above with flexible dates for the latest deals.
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