Flights Ontario-Seattle

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

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

Lowest round trip fares found for Ontario to Seattle flights

Flight

Airline name

Price

Type

Trip dates

Search date

Ontario - Seattle United Airlines $129 Round-trip 22 March 27 March
Ontario - Seattle Alaska Airlines $226 Round-trip 16 June 25 June

Recent flight searches Ontario - Seattle

Flight

Airline name

Price

Type

Trip dates

Search date

Provider

Ontario - Seattle United Airlines $129 Round-trip 22 to 27 March 2 days ago
Ontario - Seattle Alaska Airlines $226 Round-trip 16 to 25 June 5 days ago
Ontario - Seattle Virgin America $122 Round-trip 09 to 13 March 15 days ago
Ontario - Seattle Alaska Airlines $209 Round-trip 29 June to 04 July 40 days ago
Ontario - Seattle Alaska Airlines $264 Round-trip 21 to 28 July 62 days ago
Compare flights from Ontario to Seattle on regular or low cost flights and find the best ONT - BFI flight prices on Jetcost.
Top airlines flying to United States
Weather forecast for Seattle
  • Sunday 26
    Min 33 °F
    Max 46 °F
  • Monday 27
    Min 32 °F
    Max 42 °F
  • Tuesday 28
    Min 39 °F
    Max 46 °F
  • Wednesday 1
    Min 41 °F
    Max 46 °F
  • Thursday 2
    Min 42 °F
    Max 48 °F
Climate in Seattle
  • Cold
     
     
     
     
    Hot
  •  
    Rain (mm)
    Days of rain
  • January
    39 °F
    196.00
    25
  • February
    41 °F
    121.00
    19
  • March
    44 °F
    134.00
    24
  • April
    48 °F
    86.00
    21
  • May
    55 °F
    48.00
    16
  • June
    59 °F
    43.00
    13
  • July
    64 °F
    17.00
    8
  • August
    64 °F
    27.00
    9
  • September
    59 °F
    30.00
    11
  • October
    51 °F
    103.00
    21
  • November
    42 °F
    203.00
    24
  • December
    39 °F
    174.00
    24