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.

Lowest round trip fares found for Seattle to Ontario flights

Flight

Airline name

Price

Type

Trip dates

Search date

Seattle - Ontario Spirit Airlines $198 Round-trip 28 January 04 February

Recent flight searches Seattle - Ontario

Flight

Airline name

Price

Type

Trip dates

Search date

Provider

Seattle - Ontario Spirit Airlines $198 Round-trip 28 January to 04 February 2 days ago
Seattle - Ontario Virgin America $137 One-way 17 February 6 days ago
Seattle - Ontario Alaska Airlines $171 Round-trip 23 to 26 February 21 days ago
Compare flights from Seattle to Ontario on regular or low cost flights and find the best BFI - ONT flight prices on Jetcost.
Top airlines flying to United States
Weather forecast for Ontario
  • Sunday 22
    Min 42 °F
    Max 51 °F
  • Monday 23
    Min 37 °F
    Max 50 °F
  • Tuesday 24
    Min 33 °F
    Max 48 °F
  • Wednesday 25
    Min 35 °F
    Max 53 °F
  • Thursday 26
    Min 41 °F
    Max 59 °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