Cheap Flights to Illinois

View NZ$697 flight on Sun, 15 Feb 2026Opens in a new window

Popular airlines to Illinois

  • Delta

    Delta

  • American Airlines

    American Airlines

  • Frontier Airlines

    Frontier Airlines

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Spirit Airlines

    Spirit Airlines

  • Alaska Airlines

    Alaska Airlines

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Cheapest Flights to Illinois

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, 19 Mar - Thu, 2 Apr
AKL
Auckland
ORD
Chicago
NZ$1,380 Return, found 6 hours ago
NZ$1,380
Return
found 6 hours ago
Select Air Canada flight, departing Thu, 19 Mar from Auckland to Chicago, returning Thu, 2 Apr, priced at NZ$1,380 found 6 hours ago
Air Canada
Sun, 1 Feb - Sat, 7 Feb
AKL
Auckland
STL
St. Louis
NZ$1,389 Return, found 2 days ago
NZ$1,389
Return
found 2 days ago
Select Air Canada flight, departing Sun, 1 Feb from Auckland to St. Louis, returning Sat, 7 Feb, priced at NZ$1,389 found 2 days ago
Air New Zealand
Mon, 23 Mar - Fri, 10 Apr
ZQN
Queenstown
ORD
Chicago
NZ$1,605 Return, found 23 hours ago
NZ$1,605
Return
found 23 hours ago
Select Air New Zealand flight, departing Mon, 23 Mar from Queenstown to Chicago, returning Fri, 10 Apr, priced at NZ$1,605 found 23 hours ago
United
Wed, 21 Jan - Wed, 21 Jan
AKL
Auckland
ORD
Chicago
NZ$1,840 Return, found 7 hours ago
NZ$1,840
Return
found 7 hours ago
Select United flight, departing Wed, 21 Jan from Auckland to Chicago, returning Wed, 21 Jan, priced at NZ$1,840 found 7 hours ago
Air New Zealand
Tue, 23 June - Wed, 24 June
AKL
Auckland
ORD
Chicago
NZ$1,840 Return, found 2 days ago
NZ$1,840
Return
found 2 days ago
Select Air New Zealand flight, departing Tue, 23 June from Auckland to Chicago, returning Wed, 24 June, priced at NZ$1,840 found 2 days ago
Delta
Tue, 3 Mar - Tue, 24 Mar
AKL
Auckland
ORD
Chicago
NZ$1,848 Return, found 5 days ago
NZ$1,848
Return
found 5 days ago
Select Delta flight, departing Tue, 3 Mar from Auckland to Chicago, returning Tue, 24 Mar, priced at NZ$1,848 found 5 days ago
American Airlines
Thu, 11 June - Tue, 23 June
AKL
Auckland
STL
St. Louis
NZ$1,848 Return, found 5 days ago
NZ$1,848
Return
found 5 days ago
Select American Airlines flight, departing Thu, 11 June from Auckland to St. Louis, returning Tue, 23 June, priced at NZ$1,848 found 5 days ago
Delta
Thu, 26 Feb - Tue, 17 Mar
AKL
Auckland
MDW
Chicago
NZ$1,849 Return, found 2 days ago
NZ$1,849
Return
found 2 days ago
Select Delta flight, departing Thu, 26 Feb from Auckland to Chicago, returning Tue, 17 Mar, priced at NZ$1,849 found 2 days ago
Qantas Airways
Mon, 9 Feb - Mon, 23 Feb
AKL
Auckland
ORD
Chicago
NZ$1,849 Return, found 6 hours ago
NZ$1,849
Return
found 6 hours ago
Select Qantas Airways flight, departing Mon, 9 Feb from Auckland to Chicago, returning Mon, 23 Feb, priced at NZ$1,849 found 6 hours ago
Qantas Airways
Mon, 13 Apr - Thu, 9 July
AKL
Auckland
MLI
Moline
NZ$1,951 Return, found 1 day ago
NZ$1,951
Return
found 1 day ago
Select Qantas Airways flight, departing Mon, 13 Apr from Auckland to Moline, returning Thu, 9 July, priced at NZ$1,951 found 1 day ago

Illinois Flights

There is no better time to steal away to Illinois than right now, and Expedia.co.nz knows just how to get you there without breaking your budget. You can find cheap flights to Illinois right here on Expedia.co.nz, and comparing itineraries couldn't be easier. Whether you are early bird flyer or want to catch Illinois flights on the red-eye schedule, Expedia.co.nz can show you all the available flights at the best price. From domestic flights to international journeys, the flight you need can be found and booked right here with us.

Once you have your cheap tickets to Illinois in hand, holiday planning can move forward full steam ahead. Unleash the potential of your holiday with a car rental, which makes it possible to explore Illinois without relying on public transportation or trekking far and wide on foot.

If you're in the market for adventure, book one of the Expedia holiday packages. Our packages save you money and time by bundling hotels and flights. What are you waiting for? Your next holiday in Illinois starts right here!

Illinois Flights Information

Airlines serving
Air Canada, Delta, Air New Zealand, United, American Airlines, Qantas Airways
Roundtrip price
from NZ$1,380

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 NZ$1,380. 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 NZ$1,380 and NZ$1,951. Many lucky travellers nabbed one-way tickets from Auckland (AKL) for as little as NZ$697.
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.

When is the cheapest time to fly to Illinois?
Take off for Illinois early in the week and you'll usually be rewarded more economical fares. Tuesday is typically the cheapest day to hop on a plane, followed by Monday. If you're hoping to avoid the most expensive flights, steer clear of Saturdays.
How much is a plane ticket to Illinois?
In the last seven days, plane fares to Illinois ranged from NZ$1,380 to NZ$1,951.
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.

Air Canada
Thu, 19 Mar - Thu, 2 Apr
AKL
Auckland
ORD
Chicago
NZ$1,380 Return, found 6 hours ago
NZ$1,380
Return
found 6 hours ago
Select Air Canada flight, departing Thu, 19 Mar from Auckland to Chicago, returning Thu, 2 Apr, priced at NZ$1,380 found 6 hours ago
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