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$845+ 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 27/1. Fares are subject to change and may not be available on all flights or dates of travel.
— ORD
29 Jan — 5 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Illinois in 2025

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 30 December 2025.

Tue 30/1214:00AKL - ORD
1 stop19h 41mMultiple Airlines
Tue 6/120:02ORD - AKL
2 stops43h 58mMultiple Airlines
Deal found 29/12$2,278
Tue 30/1215:50AKL - ORD
1 stop26h 24mAir New Zealand
Tue 6/116:16ORD - AKL
1 stop21h 54mAir New Zealand
Deal found 29/12$2,355
Tue 30/1217:00AKL - ORD
3 stops48h 04mSingapore Airlines
Tue 6/109:35ORD - AKL
3 stops43h 00mSingapore Airlines
Deal found 29/12$7,930

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 30 December 2025
Explore Illinois
Flights to Chicago
Flights to St. Louis

Find flight deals to Illinois

Find the latest flights to Illinois in 2025, 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 30 December 2025.

Return from

$1,605

One-way from

$845

Popular in

April

Cheapest in

February

Average price

$2,156
Air Canada
  • Air Canada
  • 9/2-23/2
  • 4 total stops
  • 59h 51m total
  • Auckland to Chicago
Search Deals
Air Canada
  • Air Canada
  • 26/1
  • 2 total stops
  • 35h 25m total
  • Auckland to Illinois
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($83 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($32 potential savings vs. average return price).
Search Deals
Average for return flights in December 2025
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 30 December 2025.
Use the filters below to find and compare flights to Illinois that are best for you.

Fly from

Auckland

Route

Departure

Return

Price

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Tue 3/2

14:00-18:55

2 stops23h 55m

Chicago O'Hare Intl

Tue 24/2

18:04-11:00

2 stops45h 56m

$1,712

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Thu 12/2

07:00-22:04

3 stops34h 04m

Chicago O'Hare Intl

Thu 5/3

15:35-19:00

2 stops32h 25m

$1,733

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Wed 11/2

07:00-22:05

3 stops34h 05m

Chicago O'Hare Intl

Wed 18/2

07:15-11:00

2 stops32h 45m

$1,736

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Thu 12/2

07:00-19:45

3 stops31h 45m

Chicago O'Hare Intl

Mon 2/3

14:00-16:50

3 stops31h 50m

$1,743

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Thu 12/2

13:20-15:10

1 stop20h 50m

Chicago O'Hare Intl

Mon 16/2

06:00-09:55

1 stop32h 55m

$1,820

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Tue 3/2

13:20-11:55

1 stop17h 35m

Chicago O'Hare Intl

Tue 24/2

07:00-09:55

1 stop31h 55m

$1,829

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Thu 5/2

15:50-06:01

1 stop33h 11m

Chicago O'Hare Intl

Mon 9/2

15:23-09:10

1 stop22h 47m

$1,829

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Thu 19/2

23:30-13:11

2 stops32h 41m

Chicago O'Hare Intl

Thu 5/3

13:00-21:20

2 stops37h 20m

$1,949

AucklandChicago

AKL - ORD

AKLORD

Auckland Intl

Tue 27/1

14:00-05:44

2 stops34h 44m

$845

Flights are sorted by cheapest return flights first.

Deals found on 29/12

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 3 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 Air Canada.

Qantas Airways
Qantas Airways
From $1,420
Air New Zealand
Air New Zealand
From $1,627
Air Canada
Air Canada
From $1,360
United Airlines
United Airlines
From $1,419

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 30 December 2025.
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 30 December 2025.
Get a feel of what it's like to fly with Fiji Airways, Air New Zealand, andQantas Airways 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.
Fiji Airways
8.0
Very Good
212 reviews
Check prices

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.5

Food

7.5

Boarding

8.1

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Fiji Airways
8.0
Very Good
212 reviews
Fiji Airways
8.0
Very Good
212 reviews
Check prices

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.5

Food

7.5

Boarding

8.1

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Air New Zealand
8.0
Very Good
562 reviews
Fiji Airways
8.0
Very Good
212 reviews
Check prices

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.5

Food

7.5

Boarding

8.1

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Qantas Airways
7.5
Good
957 reviews
Fiji Airways
8.0
Very Good
212 reviews
Check prices

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.5

Food

7.5

Boarding

8.1

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
United Airlines
7.4
Good
9,124 reviews
Fiji Airways
8.0
Very Good
212 reviews
Check prices

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.5

Food

7.5

Boarding

8.1

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Air Canada
7.1
Good
10,571 reviews
Fiji Airways
8.0
Very Good
212 reviews
Check prices

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.5

Food

7.5

Boarding

8.1

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

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 $334, while return flights cost around $150.

  • How much is a return flight to Illinois?

    A return flight to Illinois will typically cost around $181, however they can be found for as little as $150.

  • 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 3 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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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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