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Cheap round-trip flights to Illinois
These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.
About Illinois
More to explore for Illinois
Heading to Illinois? Explore Illinois with Expedia's Travel Guides to find the best hotels, city breaks, car hire deals and more!
Top Illinois Hotels
- Central Loop Hotel
- River Hotel
- The Whitehall Hotel
- Wyndham Grand Chicago Riverfront
- Edward Hotel Chicago
- Congress Plaza Hotel
- Hotel Felix Chicago
- Loews Chicago Hotel
- Hilton Chicago O'Hare Airport
- Palmer House a Hilton Hotel
- Swissotel - Chicago
- Best Western River North Hotel
- Best Western Grant Park Hotel
- Hyatt Regency McCormick Place
- The Godfrey Hotel Chicago
- DoubleTree by Hilton Chicago - Magnificent Mile
- Warwick Allerton - Chicago
- Comfort Inn Arlington Heights - O'Hare
- Millennium Knickerbocker Chicago
- Hotel Chicago Downtown, Autograph Collection
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Top Flight Destinations In Illinois
- Flights to Chicago
- Flights to Galena
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Travel commencing in the Republic of Ireland to destinations outside the Republic of Ireland are protected under license by the Commission for Aviation Regulation in Ireland, Travel Agent Licence No. 0671.
