Flight Destinations in Illinois

Popular airlines to Illinois

  • Delta

    Delta

  • American Airlines

    American Airlines

  • Frontier Airlines

    Frontier Airlines

  • United

    United

  • Spirit Airlines

    Spirit Airlines

  • Southwest Airlines

    Southwest Airlines

  • JetBlue Airways

    JetBlue Airways

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Top Cities to Visit in Illinois

Chicago showing a city and a skyscraper as well as a family
FlightsFlights

Chicago

Chicago
Peoria which includes skyline, a lake or waterhole and a city
FlightsFlights

Peoria

Peoria

Cheap round-trip flights to Illinois

Prices were available within the past 7 days and start at ฿17,720 for one-way flights and ฿32,064 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Mon, 1 Sep - Sun, 14 Sep
CNX
Chiang Mai
ORD
Chicago
฿32,064 Return, found 1 hour ago
฿32,064
Return
found 1 hour ago
Select Korean Air flight, departing Mon, 1 Sep from Chiang Mai to Chicago, returning Sun, 14 Sep, priced at ฿32,064 found 1 hour ago
Korean Air
Tue, 21 Oct - Tue, 28 Oct
BKK
Bangkok
ORD
Chicago
฿32,064 Return, just found
฿32,064
Return
just found
Select Korean Air flight, departing Tue, 21 Oct from Bangkok to Chicago, returning Tue, 28 Oct, priced at ฿32,064 just found
United
Mon, 27 Oct - Sat, 15 Nov
BKK
Bangkok
ORD
Chicago
฿33,380 Return, found 5 days ago
฿33,380
Return
found 5 days ago
Select United flight, departing Mon, 27 Oct from Bangkok to Chicago, returning Sat, 15 Nov, priced at ฿33,380 found 5 days ago
Delta
Mon, 1 Sep - Fri, 5 Sep
BKK
Bangkok
MDW
Chicago
฿33,500 Return, found 1 day ago
฿33,500
Return
found 1 day ago
Select Delta flight, departing Mon, 1 Sep from Bangkok to Chicago, returning Fri, 5 Sep, priced at ฿33,500 found 1 day ago
Delta
Wed, 27 Aug - Sun, 31 Aug
BKK
Bangkok
ORD
Chicago
฿33,500 Return, just found
฿33,500
Return
just found
Select Delta flight, departing Wed, 27 Aug from Bangkok to Chicago, returning Sun, 31 Aug, priced at ฿33,500 just found
All Nippon Airways
Tue, 21 Oct - Tue, 28 Oct
BKK
Bangkok
ORD
Chicago
฿34,555 Return, just found
฿34,555
Return
just found
Select All Nippon Airways flight, departing Tue, 21 Oct from Bangkok to Chicago, returning Tue, 28 Oct, priced at ฿34,555 just found
Air Canada
Thu, 29 Jan - Wed, 4 Feb
BKK
Bangkok
ORD
Chicago
฿34,705 Return, found 12 hours ago
฿34,705
Return
found 12 hours ago
Select Air Canada flight, departing Thu, 29 Jan from Bangkok to Chicago, returning Wed, 4 Feb, priced at ฿34,705 found 12 hours ago
Cathay Pacific
Tue, 2 Sep - Thu, 11 Sep
BKK
Bangkok
EVV
Evansville
฿34,860 Return, found 2 days ago
฿34,860
Return
found 2 days ago
Select Cathay Pacific flight, departing Tue, 2 Sep from Bangkok to Evansville, returning Thu, 11 Sep, priced at ฿34,860 found 2 days ago
Cathay Pacific
Sun, 23 Nov - Sun, 30 Nov
BKK
Bangkok
PIA
Peoria
฿34,860 Return, found 1 day ago
฿34,860
Return
found 1 day ago
Select Cathay Pacific flight, departing Sun, 23 Nov from Bangkok to Peoria, returning Sun, 30 Nov, priced at ฿34,860 found 1 day ago
China Airlines
Mon, 15 Sep - Tue, 16 Sep
BKK
Bangkok
STL
St. Louis
฿35,315 Return, found 6 days ago
฿35,315
Return
found 6 days ago
Select China Airlines flight, departing Mon, 15 Sep from Bangkok to St. Louis, returning Tue, 16 Sep, priced at ฿35,315 found 6 days ago

About Illinois

Expedia offers flights to Illinois to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Illinois or destinations around the world and discover how easy it is to make your flight reservations on Expedia.

Frequently asked questions

How do I find cheap flights to Illinois that have flexible change policies?
Search for cheap flights to Illinois, then tick the "No change fee" box under the "Flexible change policies" heading. From then on it's smooth sailing. We understand that travel plans change and flexibility is essential, so book with confidence with Expedia.
Which airlines fly to Illinois?
Whether you're travelling somewhere new or rendezvousing at a favourite haunt, these airlines are waiting to take you into or near Illinois:

  • United Airlines - 13,063 flights to or near Illinois each month, including 12,950 flights to O'Hare Intl. Airport (ORD) and 108 flights to Quad City Intl. Airport (MLI) per month.
  • American Airlines - 8,977 flights to or near Illinois each month, including 8,855 flights to O'Hare Intl. Airport (ORD) and 121 flights to Quad City Intl. Airport (MLI) per month.
  • Southwest Airlines - 5,997 flights to or near Illinois each month, including 5,334 flights to Midway Intl. Airport (MDW) and 663 flights to O'Hare Intl. Airport (ORD) per month.

How can I find cheap tickets to Illinois?
One of the easiest ways to find cheap tickets to Illinois is to be flexible with your travel dates. Search for your flights, then click "flexible dates" at the top of your results. It'll reveal the cheapest prices for nearby days. The lowest price for a flight to Illinois in the last seven days was ฿32,064. Booking well in advance will generally help you score an even bigger bargain.
How much is a flight to Illinois?
There were plenty of bargain fares up for grabs in the last seven days, with the cost of a return airfare to Illinois ranging between ฿32,064 and ฿35,315. Many lucky travellers nabbed one-way tickets from Bangkok (BKK) for as little as ฿17,720.
What are the most popular airports to fly into in Illinois?
Touch down at one of these top Illinois airports and you'll be perfectly placed to discover all that this wonderful region has to offer:

  • O'Hare Intl. Airport (ORD) - 25,318 flights per month.
  • Midway Intl. Airport (MDW) - 5,962 flights per month.
  • Quad City Intl. Airport (MLI) - 325 flights per month.

How much is a plane ticket to Illinois?
In the last seven days, plane fares to Illinois ranged from ฿32,064 to ฿35,315.
What is the best time to go to Illinois?
A terrific time to check out Chicago is after June 20 when the summer season starts. In Illinois's main city, average temperatures range from 18ºC to 24ºC at this time — ideal weather for sightseeing! May, June and August are the most popular months to head to this hot spot.
What months are the cheapest to book a flight to Illinois?
The top month to purchase affordable flights to Illinois is February. Remember that in the U.S, an expensive time to reserve a ticket is during the busy month of December.

Trending 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.

Korean Air
Tue, 21 Oct - Tue, 28 Oct
BKK
Bangkok
ORD
Chicago
฿32,064 Return, just found
฿32,064
Return
just found
Select Korean Air flight, departing Tue, 21 Oct from Bangkok to Chicago, returning Tue, 28 Oct, priced at ฿32,064 just found
*Available to Expedia members.