Washington D.C. to Illinois, United States flights

Peoria, Illinois is typically the cheapest at $287 but deals to Chicago, Illinois are $74 right now.
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Best Deals from WAS to Illinois

Discover the cheapest current deals from 693 recent searches matching your trip
  • $74
    Chicago, Illinois
    3 days in Aug
    Fri
    14
    Mon
    17
  • $74
    Chicago, Illinois
    3 days in Aug
    Fri
    21
    Mon
    24
  • $74
    Chicago, Illinois
    3 days in Sep
    Sat
    12
    Tue
    15
  • $74
    Chicago, Illinois
    4 days in Jul
    Thu
    16
    Mon
    20
  • $74
    Chicago, Illinois
    4 days in Aug
    Sat
    15
    Wed
    19
  • $74
    Chicago, Illinois
    5 days in Aug
    Tue
    18
    Sun
    23
  • When to Fly
    Prices range from $268 in June to $459 in December
  • Chicago, Illinois
    $74
    Whoa, this is 74% off
  • Moline, Illinois
    $241
    This is a good deal at 25% off
  • From:
    Washington D.C. (BWI,DCA,IAD)
        
    To:
    Illinois, United States (11 Airports)    
        
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