Cheap flights from Illinois to Seattle

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Named after the Native American Chief Sealth, Seattle has a magnificent setting for a city with Lake Washington behind, the snowy peak of Mount Rainier in the distance and the shore of Elliott Bay at its feet.... (read more in our Seattle Travel Guide)

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Cheapest flights found for the next 6 months

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Chicago 
Moline 

Check our newest flight offers to Seattle:

  • $291Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Chicago, IL (ORD)Seattle, WA (SEA)02/20/201806:29 am
    Seattle, WA (SEA)Chicago, IL (ORD)03/06/201812:05 pm
    flyfar.ca check price
  • $297United Airlines flight United Airlines 
    FromToDepartureTime
    Chicago, IL (ORD)Seattle, WA (SEA)01/30/201807:39 pm
    Seattle, WA (SEA)Chicago, IL (ORD)02/10/201806:25 am
    travelgrove.com check price
  • $300Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Chicago, IL (ORD)Seattle, WA (SEA)02/20/201806:29 am
    Seattle, WA (SEA)Chicago, IL (ORD)03/06/201803:40 pm
    flyfar.ca check price
  • $300Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Chicago, IL (ORD)Seattle, WA (SEA)02/20/201806:29 am
    Seattle, WA (SEA)Chicago, IL (ORD)03/06/201812:05 pm
    flightnetwork.com check price
  • $378United Airlines flight United Airlines 
    FromToDepartureTime
    Moline, IL (MLI)Seattle, WA (SEA)03/05/201804:35 pm
    Seattle, WA (SEA)Moline, IL (MLI)03/20/201801:40 pm
    flightnetwork.com check price
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Multiple AirlinesAtlanta To Fairbanks Multiple Airlines airfares from Atlanta in February
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Seattle Pictures
  • Seattle Doentown - Seattleview
  • Pioneer Square - Seattleview
  • Space Needle - Seattleview
  • Sunset - Seattleview
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