Popular airlines among travelers
- Be in the knowGet alerts if flight prices drop or rise*
- Book smarterSave up to 45% on select hotels after you book a flight*
Plan, book, fly with confidence
Top Cities to Visit in Illinois
How much is the cheapest flight to Illinois?
Prices were available within the past 7 days and start at NT$4,885 for one-way flights and NT$7,523 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Fri, May 24 - Wed, May 29
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
NT$7,523 Roundtrip, found 2 days ago
NT$7,523
Roundtrip
found 2 days ago
Fri, May 24 - Wed, May 29
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
NT$7,877 Roundtrip, found 2 days ago
NT$7,877
Roundtrip
found 2 days ago
Fri, May 24 - Wed, May 29
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
NT$8,537 Roundtrip, found 2 days ago
NT$8,537
Roundtrip
found 2 days ago
Fri, May 24 - Wed, May 29
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
NT$8,853 Roundtrip, found 2 days ago
NT$8,853
Roundtrip
found 2 days ago
Fri, May 24 - Wed, May 29
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
NT$9,308 Roundtrip, found 2 days ago
NT$9,308
Roundtrip
found 2 days ago
Fri, May 24 - Wed, May 29
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
NT$9,477 Roundtrip, found 2 days ago
NT$9,477
Roundtrip
found 2 days ago
Fri, May 24 - Wed, May 29
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
NT$9,486 Roundtrip, found 2 days ago
NT$9,486
Roundtrip
found 2 days ago
Fri, May 24 - Wed, May 29
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
NT$9,569 Roundtrip, found 2 days ago
NT$9,569
Roundtrip
found 2 days ago
Fri, May 24 - Wed, May 29
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
NT$9,661 Roundtrip, found 2 days ago
NT$9,661
Roundtrip
found 2 days ago
Fri, May 24 - Wed, May 29
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
NT$9,662 Roundtrip, found 2 days ago
NT$9,662
Roundtrip
found 2 days ago
Frequently asked questions
Explore Illinois
Flying to Illinois? Explore Illinois with Expedia's Travel Guides to find the best hotels, vacation packages, car rental deals and more!
Trending flights to Illinois
These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Sat, Jun 15 - Sat, Jul 6
TPE
Taoyuan Intl.
ORD
O'Hare Intl.
NT$31,494 Roundtrip, found 4 days ago
NT$31,494
Roundtrip
found 4 days ago
Top Flight Destinations In Illinois
Top Flight Destinations In the World
- Flights to Spain
- Flights to Philippines
- Flights to Germany
- Flights to Colombia
- Flights to United States of America
- Flights to Australia
- Flights to Sweden
- Flights to Brazil
- Flights to India
- Flights to Indonesia
- Flights to Canada
- Flights to Norway
- Flights to Thailand
- Flights to Argentina
- Flights to Mexico
- Flights to South Korea
- Flights to Türkiye
- Flights to Greece
- Flights to United Kingdom
- Flights to Russia
Top Illinois Hotels
- Congress Plaza Hotel
- River Hotel
- Eurostars Magnificent Mile
- Hotel Felix River North/Magnificent Mile
- Aloft Chicago Mag Mile
- Club Quarters Hotel, Central Loop, Chicago
- InterContinental Chicago Magnificent Mile, an IHG Hotel
- The Westin Michigan Avenue Chicago
- Warwick Allerton - Chicago
- Hilton Chicago/Magnificent Mile Suites
- Embassy Suites by Hilton Chicago Downtown River North
- DoubleTree by Hilton Chicago - Magnificent Mile
- Freehand Chicago
- W Chicago - Lakeshore
- The Royal Sonesta Chicago Downtown
- Silversmith Hotel Chicago Downtown
- Best Western Grant Park Hotel
- La Quinta Inn & Suites by Wyndham Chicago Downtown
- Travelodge by Wyndham Downtown Chicago
Hotels
Packages
General
Visit ColoradoVisit DelawareVisit AlaskaVisit MontanaVisit OhioVisit MichiganVisit UtahVisit North CarolinaVisit OregonVisit MississippiVisit New JerseyVisit ArizonaVisit WisconsinVisit Rhode IslandVisit GeorgiaVisit CaliforniaVisit FloridaVisit TennesseeVisit VermontVisit South CarolinaVisit MinnesotaVisit New MexicoVisit Pennsylvania
*Available to Expedia members.