Flight Destinations in Illinois

View ฿20,405 flight on Tue, 6 Oct 2026Opens in a new window

Popular airlines to Illinois

  • Delta

  • Frontier Airlines

  • American Airlines

  • United

  • Alaska Airlines

  • Spirit Airlines

  • Southwest Airlines

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Cheap round-trip flights to Illinois

Prices were available within the past 7 days and start at ฿20,405 for one-way flights and ฿29,755 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Philippine Airlines
Tue, 19 May - Mon, 21 Sept
BKK
Bangkok
ORD
Chicago
฿29,755 Return, found 5 days ago
฿29,755
Return
found 5 days ago
Select Philippine Airlines flight, departing Tue, 19 May from Bangkok to Chicago, returning Mon, 21 Sept, priced at ฿29,755 found 5 days ago
Oman Air
Mon, 21 Sept - Fri, 23 Oct
BKK
Bangkok
ORD
Chicago
฿32,740 Return, found 14 hours ago
฿32,740
Return
found 14 hours ago
Select Oman Air flight, departing Mon, 21 Sept from Bangkok to Chicago, returning Fri, 23 Oct, priced at ฿32,740 found 14 hours ago
United
Sun, 7 Jun - Sun, 20 Sept
BKK
Bangkok
ORD
Chicago
฿33,445 Return, found 6 days ago
฿33,445
Return
found 6 days ago
Select United flight, departing Sun, 7 Jun from Bangkok to Chicago, returning Sun, 20 Sept, priced at ฿33,445 found 6 days ago
Delta
Thu, 17 Sept - Mon, 21 Sept
BKK
Bangkok
ORD
Chicago
฿33,675 Return, found 4 days ago
฿33,675
Return
found 4 days ago
Select Delta flight, departing Thu, 17 Sept from Bangkok to Chicago, returning Mon, 21 Sept, priced at ฿33,675 found 4 days ago
Air Canada
Mon, 12 Oct - Mon, 26 Oct
BKK
Bangkok
ORD
Chicago
฿33,790 Return, just found
฿33,790
Return
just found
Select Air Canada flight, departing Mon, 12 Oct from Bangkok to Chicago, returning Mon, 26 Oct, priced at ฿33,790 just found
All Nippon Airways
Sun, 7 Jun - Sun, 20 Sept
BKK
Bangkok
ORD
Chicago
฿34,375 Return, found 6 days ago
฿34,375
Return
found 6 days ago
Select All Nippon Airways flight, departing Sun, 7 Jun from Bangkok to Chicago, returning Sun, 20 Sept, priced at ฿34,375 found 6 days ago
Korean Air
Tue, 15 Sept - Sun, 27 Sept
BKK
Bangkok
ORD
Chicago
฿35,385 Return, just found
฿35,385
Return
just found
Select Korean Air flight, departing Tue, 15 Sept from Bangkok to Chicago, returning Sun, 27 Sept, priced at ฿35,385 just found
Delta
Tue, 13 Oct - Sat, 17 Oct
BKK
Bangkok
MDW
Chicago
฿35,485 Return, found 3 days ago
฿35,485
Return
found 3 days ago
Select Delta flight, departing Tue, 13 Oct from Bangkok to Chicago, returning Sat, 17 Oct, priced at ฿35,485 found 3 days ago
Qatar Airways
Fri, 8 May - Sat, 8 Aug
BKK
Bangkok
ORD
Chicago
฿36,575 Return, found 1 day ago
฿36,575
Return
found 1 day ago
Select Qatar Airways flight, departing Fri, 8 May from Bangkok to Chicago, returning Sat, 8 Aug, priced at ฿36,575 found 1 day ago
Qatar Airways
Sat, 25 Apr - Mon, 4 May
BKK
Bangkok
STL
St. Louis
฿38,480 Return, found 12 hours ago
฿38,480
Return
found 12 hours ago
Select Qatar Airways flight, departing Sat, 25 Apr from Bangkok to St. Louis, returning Mon, 4 May, priced at ฿38,480 found 12 hours ago

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.

Philippine Airlines
Tue, 19 May - Mon, 21 Sept
BKK
Bangkok
ORD
Chicago
฿29,755 Return, found 5 days ago
฿29,755
Return
found 5 days ago
Select Philippine Airlines flight, departing Tue, 19 May from Bangkok to Chicago, returning Mon, 21 Sept, priced at ฿29,755 found 5 days ago

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 ฿29,755. 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 ฿29,755 and ฿38,480. Many lucky travellers nabbed one-way tickets from Bangkok (BKK) for as little as ฿20,405.
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 ฿29,755 to ฿38,480.
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.

Book with confidence

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.
About Illinois

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