Cheap Flights to Northern Illinois

View ฿17,480 flight on Tue, 9 Sep 2025Opens in a new window

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Cheap round-trip flights to Northern Illinois

Prices were available within the past 7 days and start at ฿17,480 for one-way flights and ฿29,365 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

China Airlines
Tue, 28 Apr - Tue, 12 May
BKK
Bangkok
ORD
Chicago
฿29,365 Return, found 5 hours ago
฿29,365
Return
found 5 hours ago
Select China Airlines flight, departing Tue, 28 Apr from Bangkok to Chicago, returning Tue, 12 May, priced at ฿29,365 found 5 hours ago
Korean Air
Mon, 8 Sep - Sun, 21 Sep
CNX
Chiang Mai
ORD
Chicago
฿33,380 Return, found 2 days ago
฿33,380
Return
found 2 days ago
Select Korean Air flight, departing Mon, 8 Sep from Chiang Mai to Chicago, returning Sun, 21 Sep, priced at ฿33,380 found 2 days ago
Delta
Tue, 19 Aug - Thu, 21 Aug
BKK
Bangkok
ORD
Chicago
฿33,445 Return, just found
฿33,445
Return
just found
Select Delta flight, departing Tue, 19 Aug from Bangkok to Chicago, returning Thu, 21 Aug, priced at ฿33,445 just found
United
Mon, 6 Oct - Tue, 21 Oct
BKK
Bangkok
ORD
Chicago
฿33,470 Return, found 3 days ago
฿33,470
Return
found 3 days ago
Select United flight, departing Mon, 6 Oct from Bangkok to Chicago, returning Tue, 21 Oct, priced at ฿33,470 found 3 days ago
All Nippon Airways
Thu, 16 Oct - Sun, 2 Nov
BKK
Bangkok
ORD
Chicago
฿34,490 Return, found 1 hour ago
฿34,490
Return
found 1 hour ago
Select All Nippon Airways flight, departing Thu, 16 Oct from Bangkok to Chicago, returning Sun, 2 Nov, priced at ฿34,490 found 1 hour ago

Flights to Northern Illinois

Searching for cheap flights to Northern Illinois? No travel company presents more choices than Expedia if you're looking to compare flights to Northern Illinois. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Northern Illinois. Expedia provides the cheapest flights to Northern Illinois and you may find even greater savings if you combine your flight to Northern Illinois with a hotel stay. Travellers who are flexible about flight times can benefit from last minute cheap flights to Northern Illinois.

Expedia is the largest online travel agency which means that Expedia have access to cheap airline tickets. So make sure you check Expedia regularly for these bargain flights because the cheapest airline ticket deals sell out fast.

Expedia is not only free for everyone to use but it quick and easy to use. Find the lowest flight prices guaranteed and book directly through Expedia. Browse through hundreds of cheap flight offers to find the one that suits your budget by simply inputting your travel dates. Expedia will then find the cheapest flights to Northern Illinois for that period and let you choose your preferred time and airline.

Frequently asked questions

How do I find cheap flights to Northern Illinois that have flexible change policies?
Search for your cheap flights to Northern Illinois, then tick the "No change fee" box under the "Flexible change policies" heading. It's that simple. We know that things can change and flexibility is important, so book with confidence with Expedia.
Which airlines fly to Northern Illinois?
A good selection of airlines fly to destinations in or close to Northern Illinois. Your holiday is just a few clicks away with these popular carriers:

  • United Airlines - 13,058 flights to or near Northern 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 Northern Illinois each month, including 8,855 flights to O'Hare Intl. Airport (ORD) and 121 flights to Quad City Intl. Airport (MLI) per month.
  • Delta Air Lines - 1,282 flights to or near Northern Illinois each month, including 1,222 flights to O'Hare Intl. Airport (ORD) and 60 flights to Quad City Intl. Airport (MLI) per month.

How can I find cheap tickets to Northern Illinois?
A good strategy for nabbing cheap fares is to be flexible with your dates. Begin with searching for your flight to Northern Illinois, then click on the "flexible dates" box to see prices for nearby days. Another good tip? Book well ahead. To give you an idea of fares, ฿29,365 was the best price for a flight to Northern Illinois in the last seven days.
How much is a flight to Northern Illinois?
One-way flights from Bangkok (BKK) sold for just ฿17,480 in the last seven days. During this time, the price of a return air ticket to Northern Illinois ranged between ฿29,365 and ฿34,490. If you find a bargain ticket, book as fast as you can --- these prices don't stick around for long.
What are the most popular airports to fly into in Northern Illinois?
Cruise into one of these top Northern Illinois airports and you'll be in the perfect position to discover all that this terrific region has to offer:

  • O'Hare Intl. Airport (ORD) - 25,318 flights per month.
  • Quad City Intl. Airport (MLI) - 325 flights per month.
  • Williamson County Regional Airport (MWA) - 156 flights per month.

How much is a plane ticket to Northern Illinois?
In the last seven days, tickets varied between ฿29,365 and ฿34,490. Take a look at our amazing deals to Northern Illinois, pick your favourite and then start packing!
What months are the cheapest to book a flight to Northern Illinois?
February is the cheapest month to book your Northern Illinois adventure. Fares are at a premium throughout the busy month of December, so avoid this time if possible.
Flights to Northern Illinois information
Destination airport
O'Hare Intl.
Destination airport IATA code
ORD
Destination city name
Chicago
Return price
฿6,945

Trending flights to Northern Illinois

Prices were available within the past 7 days and start at ฿17,480 for one-way flights and ฿29,365 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

China Airlines
Tue, 28 Apr - Tue, 12 May
BKK
Bangkok
ORD
Chicago
฿29,365 Return, found 5 hours ago
฿29,365
Return
found 5 hours ago
Select China Airlines flight, departing Tue, 28 Apr from Bangkok to Chicago, returning Tue, 12 May, priced at ฿29,365 found 5 hours ago
*Available to Expedia members.