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 $229 Round-trip 10 January 11 January
Boston - San Francisco United Airlines $261 Round-trip 12 January 16 January
Boston - San Francisco JetBlue $277 Round-trip 03 March 05 March

Recent flight searches Boston - San Francisco

Flight

Airline name

Price

Type

Trip dates

Search date

Provider

Boston - San Francisco Sun Country Airlines $316 Round-trip 18 December to 18 January Today 04:58
Boston - San Francisco United Airlines $436 Round-trip 30 June to 08 July Today 04:48
Boston - San Francisco Sun Country Airlines $162 One-way 17 December Today 04:39
Boston - San Francisco JetBlue $637 Round-trip 23 December to 08 January Today 04:20
Boston - San Francisco United Airlines $332 Round-trip 02 to 06 March Today 03:56
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
  • Sunday 4
    Min 51 °F
    Max 55 °F
  • Monday 5
    Min 46 °F
    Max 57 °F
  • Tuesday 6
    Min 41 °F
    Max 57 °F
  • Wednesday 7
    Min 44 °F
    Max 53 °F
  • Thursday 8
    Min 37 °F
    Max 53 °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