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$1,011+ Cheap flights to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
— ORD
15 Jul — 22 Jul1
1 adult
1 adult, Economy, 0 bags

Flights to Illinois in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Illinois
Explore the most affordable flight options available to Illinois. Find the lowest fares based on data from user searches, with prices last updated on 15 June 2026.

Mon 27/716:25
AKL
-
ORD
1 stop34h 37m
American Airlines
Mon 10/819:00
ORD
-
AKL
2 stops28h 50m
American Airlines
Deal found 15/6$1,770
Mon 27/716:25
AKL
-
ORD
1 stop34h 37m
American Airlines
Mon 3/819:08
ORD
-
AKL
2 stops26h 02m
American Airlines
Deal found 12/6$1,784
Wed 22/716:25
AKL
-
ORD
1 stop34h 37m
American Airlines
Fri 31/719:08
ORD
-
AKL
2 stops25h 57m
American Airlines
Deal found 13/6$1,825
Tue 15/920:15
AKL
-
ORD
1 stop18h 20m
Air New Zealand
Sat 26/919:45
ORD
-
AKL
1 stop40h 15m
Air New Zealand
Deal found 13/6$1,953
Wed 22/720:15
AKL
-
ORD
1 stop22h 00m
Air New Zealand
Fri 31/721:40
ORD
-
AKL
1 stop38h 50m
Air New Zealand
Deal found 12/6$1,970
Thu 9/713:50
AKL
-
ORD
1 stop24h 48m
Air New Zealand
Thu 23/721:30
ORD
-
AKL
1 stop39h 30m
Air New Zealand
Deal found 10/6$1,974
Thu 16/713:50
AKL
-
ORD
1 stop24h 13m
Air New Zealand
Wed 29/715:57
ORD
-
AKL
2 stops30h 08m
Air New Zealand
Deal found 10/6$2,054
Mon 27/713:50
AKL
-
ORD
1 stop18h 00m
United Airlines
Mon 3/821:35
ORD
-
AKL
1 stop40h 35m
United Airlines
Deal found 12/6$2,065
Tue 28/720:15
AKL
-
ORD
2 stops21h 29m
United Airlines
Tue 4/816:30
ORD
-
AKL
1 stop21h 40m
United Airlines
Deal found 13/6$2,075

Find flights to Illinois

Browse one-way and return flights deals to Illinois on Cheapflights. Flight deals are based on user searches and were last updated on 15 June 2026
Explore Illinois
Flights to Chicago
Flights to St. Louis

Find flight deals to Illinois

Find the latest flights to Illinois in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 134,765 searches and data was last updated on 15 June 2026.

Return from

$1,770

One-way from

$1,011

Popular in

June

Cheapest in

February

Average price

$2,539
American Airlines
  • American Airlines
  • 27/7-10/8
  • 3 total stops
  • 63h 27m total
  • Auckland to Chicago
Search Deals
9/9
  • 9/9
  • 3 total stops
  • 39h 02m total
  • Auckland to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($342 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($39 potential savings vs. average return price).
Search Deals
Average for return flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Locate flights to Illinois that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 134,765 searches and data was last updated on 15 June 2026.
Use the filters below to find and compare flights to Illinois that are best for you.

Fly from

Route

Departure

Return

Price

Cheapest return flight

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Wed 22/7

20:15-01:15

1 stop22h 00m

Chicago O'Hare Intl

Fri 31/7

21:40-05:30

1 stop38h 50m

$1,981

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Mon 27/7

13:50-14:50

1 stop18h 00m

Chicago O'Hare Intl

Mon 3/8

21:35-07:10

1 stop40h 35m

$2,065

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Tue 28/7

20:15-00:44

2 stops21h 29m

Chicago O'Hare Intl

Tue 4/8

14:00-07:10

2 stops24h 10m

$2,075

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Tue 15/9

20:15-23:05

1 stop19h 50m

Chicago O'Hare Intl

Sat 26/9

22:00-06:00

2 stops38h 00m

$2,077
Fastest return journey

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Sat 15/8

19:50-23:26

1 stop20h 36m

Chicago O'Hare Intl

Fri 28/8

15:48-06:00

1 stop21h 12m

$2,114

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Sat 15/8

19:50-21:32

1 stop18h 42m

Chicago O'Hare Intl

Fri 28/8

22:00-07:10

2 stops40h 10m

$2,133

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Sat 25/7

20:15-00:44

2 stops21h 29m

Chicago O'Hare Intl

Sat 1/8

15:57-07:10

1 stop22h 13m

$2,133

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Thu 16/7

13:50-23:31

2 stops26h 41m

Chicago O'Hare Intl

Wed 29/7

18:10-15:05

2 stops27h 55m

$2,178

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Wed 9/9

13:25-14:20

1 stop41h 55m

Chicago O'Hare Intl

Sat 19/9

16:15-23:55

2 stops38h 40m

$2,406

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Sat 15/8

06:10-17:29

2 stops28h 19m

Chicago O'Hare Intl

Fri 28/8

19:07-14:05

2 stops25h 58m

$2,515

Flights are sorted by cheapest return flights first.

Deals found on 15/6

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

Best time to book a flight to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Illinois

How long is the flight to Illinois?

On average, a flight from Auckland to Illinois takes 18 hours 20 minutes. Flights to Illinois from other popular cities in New Zealand will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Illinois?

The most popular airlines flying from Auckland to Illinois are Air New Zealand, Qantas Airways and American Airlines.

Air New Zealand
Air New Zealand
From $1,620
Qantas Airways
Qantas Airways
From $1,414
American Airlines
American Airlines
From $302
United Airlines
United Airlines
From $1,413

What are the cheapest airlines that fly to Illinois?

The cheapest airlines flying from Auckland to Illinois are American Airlines, Fiji Airways and Air Canada.

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 mm per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

What are the most popular places to fly to in Illinois?

Destination popularity is based on the amount of flight searches to Illinois in the last few years. This data was updated on 15 June 2026.
The most popular places in Illinois to fly to are Chicago and Champaign.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated 15 June 2026.
Get a feel of what it's like to fly with Air New Zealand,Qantas Airways, andUnited Airlines to the United States by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very Good
645 reviews
Check prices

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

7.4

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Air New Zealand
8.0
Very Good
645 reviews
Air New Zealand
8.0
Very Good
645 reviews
Check prices

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

7.4

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Qantas Airways
7.5
Good
1,046 reviews
Air New Zealand
8.0
Very Good
645 reviews
Check prices

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

7.4

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
United Airlines
7.4
Good
9,831 reviews
Air New Zealand
8.0
Very Good
645 reviews
Check prices

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

7.4

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
American Airlines
7.1
Good
11,660 reviews
Air New Zealand
8.0
Very Good
645 reviews
Check prices

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

7.4

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Air Canada
7.1
Good
11,194 reviews
Air New Zealand
8.0
Very Good
645 reviews
Check prices

Comfort

7.9

Food

7.4

Overall

8.0

Entertainment

7.4

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

FAQs about flying to Illinois

  • Can I find cheaper flights to Illinois if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Illinois on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Illinois?

    Based on reviews from Cheapflights users, United Airlines is rated the highest out of the airlines that fly to Illinois.

  • What is the cheapest airport to fly to in Illinois?

    Chicago O'Hare Intl is currently the cheapest airport to fly to in Illinois. One-way flights to Chicago O'Hare Intl typically cost $422, while return flights cost around $302.

  • How much is a return flight to Illinois?

    A return flight to Illinois will typically cost around $304, however they can be found for as little as $302.

  • Where does the fastest flight to Illinois depart from?

    For those looking to save time traveling to Illinois, Auckland Intl offers the quickest one-way flight (18 hours 20 minutes).

  • Does Chicago O'Hare Intl have rental cars?

    Yes. Those touching down at Chicago O'Hare Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Chicago O'Hare Intl?

    Yes. Chicago O'Hare Intl has hotels nearby for those requiring accommodations. Hilton Chicago O'Hare Airport is the closest property to Chicago O'Hare Intl (0.0 km away from Chicago O'Hare Intl).

See more FAQs

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Flights to O'Hare Intl
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Why should you use Cheapflights to find cheap flight tickets to Illinois?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights to Illinois for you. Better yet — we are completely free to use.

Can Cheapflights find flights to Illinois with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights to Illinois flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights to Illinois become cheaper?

Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to Illinois today and book when you’re ready!

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