Washington D.C. to Illinois, United States flights

Deals to Chicago, Illinois are as low as $101 right now.
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Best Deals from WAS to Illinois

Discover the cheapest current deals from 2,340 recent searches matching your trip
  • $101
    Chicago, Illinois
    7 days in Aug
    Wed
    21
    Wed
    28
  • $137
    Chicago, Illinois
    3 days in Sep
    Sat
    21
    Tue
    24
  • $137
    Chicago, Illinois
    5 days in Sep
    Thu
    19
    Tue
    24
  • $137
    Chicago, Illinois
    4 days in Aug & Sep
    Wed
    28
    Sun
    1
  • $137
    Chicago, Illinois
    7 days in Oct
    Tue
    15
    Tue
    22
  • $137
    Chicago, Illinois
    8 days in Aug
    Tue
    13
    Wed
    21
  • When to Fly
    Prices range from $170 in September to $387 in March
  • Chicago, Illinois
    $101
    Whoa, this is 58% off
  • Moline, Illinois
    $250
    This is a great deal at 32% off
  • Bloomington-Normal, Illinois
    $265
    This is a good deal at 22% off
  • Peoria, Illinois
    $428
    This is the best available price
  • From:
    Washington D.C. (BWI,DCA,IAD)
        
    To:
    Illinois, United States (11 Airports)    
        
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