Cheap flights from Seattle to Ontario, CA

Travel > North America > United States > Seattle to Ontario, CA flights

Check our current prices for flights from Seattle to Ontario, CA. Please note that we also give you historical search data for this city connection. These are all airfares that people found in the past, in order to find more current flight information from Seattle to Ontario, CA, you will need to run a search below.

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From $277 / RT details

Book your flight now with Cheapoair.com and save!

Cheap Ontario airfares from $277/RT are provided by Cheapoair.com. Outbound flight is leaving on 01/06/2021, 09:00 am from Seattle/tacoma Sea/tac (SEA) airport and arrives at Ontario Int`l (ONT) at 02:15 pm. The flight time is 5 hours and 15 minutes. The Returning flight departes on 01/11/2021, 06:00 am (other return dates are also available). Date posted: 11 Nov 2020

Price evolution for flights From Seattle To Ontario, CA

Price overview for flights from Seattle to Ontario, CA

Recent Deals on Flights from Seattle to Ontario, CA:Roundtrip / Oneway

  • $277Alaska Airlines flight Alaska Airlines 
    FromToDepartureTime
    Seattle, WA (SEA)Ontario, CA (ONT)01/06/202109:00 am
    Ontario, CA (ONT)Seattle, WA (SEA)01/11/202106:00 am
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  • $288Alaska Airlines flight Alaska Airlines 
    FromToDepartureTime
    Seattle, WA (SEA)Ontario, CA (ONT)12/09/202004:00 pm
    Ontario, CA (ONT)Seattle, WA (SEA)12/21/202009:30 am
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  • $681Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Seattle, WA (SEA)Ontario, CA (ONT)12/11/202007:59 pm
    Ontario, CA (ONT)Seattle, WA (SEA)12/23/202011:50 am
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  • $98Alaska Airlines flight Alaska Airlines 
    FromToDepartureTime
    Seattle, WA (SEA)Ontario, CA (ONT)12/02/202002:20 pm
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  • $164Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Seattle, WA (SEA)Ontario, CA (ONT)12/26/202012:59 am
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  • $204Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Seattle, WA (SEA)Ontario, CA (ONT)12/26/202012:59 am
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  • $308Alaska Airlines flight Alaska Airlines 
    FromToDepartureTime
    Seattle, WA (SEA)Ontario, CA (ONT)12/17/202007:00 am
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  • $327Alaska Airlines flight Alaska Airlines 
    FromToDepartureTime
    Seattle, WA (SEA)Ontario, CA (ONT)12/26/202007:00 am
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Know what to do when flying to Ontario, CA?

Ontario Travel Guide A city in the San Bernardino County in California, Ontario offers wonderful living conditions for its residents. Over the years its reputation as a significant tourist attraction has also grown considerably. The city got the name of Ontario [...]
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