Flights Seattle-Ontario

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

Jetcost is a price comparison service for flights to Ontario airport. You can also compare hotels in Ontario and Ontario car rentals.
Compare flights from Seattle to Ontario on regular or low cost flights and find the best BFI - ONT flight prices on Jetcost.
Weather forecast for Ontario
  • Wednesday 29
    Min 55 °F
    Max 84 °F
  • Thursday 30
    Min 50 °F
    Max 78 °F
  • Friday 31
    Min 50 °F
    Max 82 °F
  • Saturday 1
    Min 55 °F
    Max 78 °F
  • Sunday 2
    Min 46 °F
    Max 84 °F
Climate in Ontario
  • Cold
     
     
     
     
    Hot
  •  
    Rain (mm)
    Days of rain
  • January
    53 °F
    39.00
    8
  • February
    55 °F
    65.00
    10
  • March
    57 °F
    29.00
    8
  • April
    60 °F
    17.00
    7
  • May
    68 °F
    4.00
    4
  • June
    73 °F
    0.00
    2
  • July
    78 °F
    1.00
    1
  • August
    78 °F
    0.00
    1
  • September
    75 °F
    1.00
    2
  • October
    66 °F
    20.00
    5
  • November
    59 °F
    13.00
    4
  • December
    51 °F
    33.00
    7