Flights Boston-San Francisco

Find cheap Boston - San Francisco flights with our free flight search engine. Compare all available fares for direct flights to San Francisco. Search and find the best fares and deals for flights from Boston to San Francisco. Find cheap flights to San Francisco (BOS - SFO) among many online travel agencies, traditional airlines as well as low cost carriers.

Jetcost is a price comparison service for flights to San Francisco airport. You can also compare hotels in San Francisco and San Francisco car rentals.

Lowest round trip fares found for Boston to San Francisco flights

Flight

Airline name

Price

Type

Trip dates

Search date

Boston - San Francisco United Airlines $249 Round-trip 21 March 28 March
Boston - San Francisco United Airlines $249 Round-trip 26 April 03 May
Boston - San Francisco United Airlines $249 Round-trip 26 April 13 May

Recent flight searches Boston - San Francisco

Flight

Airline name

Price

Type

Trip dates

Search date

Provider

Boston - San Francisco Sun Country Airlines $147 One-way 22 May Today 11:36
Boston - San Francisco Delta Airlines $431 Round-trip 07 to 11 March Today 06:34
Boston - San Francisco Delta Airlines $431 Round-trip 08 to 11 March Today 06:33
Boston - San Francisco Sun Country Airlines $312 Round-trip 03 May to 06 June Today 05:49
Boston - San Francisco Sun Country Airlines $347 Round-trip 04 May to 08 June Today 05:48
Compare flights from Boston to San Francisco on regular or low cost flights and find the best BOS - SFO flight prices on Jetcost.
Weather forecast for San Francisco
  • Monday 27
    Min 42 °F
    Max 50 °F
  • Tuesday 28
    Min 46 °F
    Max 51 °F
  • Wednesday 1
    Min 46 °F
    Max 57 °F
  • Thursday 2
    Min 48 °F
    Max 57 °F
  • Friday 3
    Min 48 °F
    Max 59 °F
Climate in San Francisco
  • Cold
     
     
     
     
    Hot
  •  
    Rain (mm)
    Days of rain
  • January
    48 °F
    76.00
    14
  • February
    51 °F
    93.00
    13
  • March
    55 °F
    48.00
    10
  • April
    57 °F
    32.00
    8
  • May
    66 °F
    24.00
    4
  • June
    69 °F
    2.00
    2
  • July
    73 °F
    2.00
    2
  • August
    73 °F
    14.00
    2
  • September
    69 °F
    1.00
    1
  • October
    64 °F
    24.00
    5
  • November
    55 °F
    42.00
    8
  • December
    48 °F
    105.00
    14