HK$3,574+ 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
6 Feb — 13 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Illinois in 2026

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 70,647 searches and data was last updated on 7 January 2026.

Return from

HK$6,346

One-way from

HK$3,574

Popular in

July

Cheapest in

September

Average price

HK$7,623

Good round-trip deal

HK$7,314 or less
29-1-28-2
  • 29-1-28-2
  • 4 total stops
  • 59h 54m total
  • Hong Kong to Chicago
27-1
  • 27-1
  • 3 total stops
  • 52h 22m total
  • Hong Kong to Illinois
Highest demand for flights based on searches. 22% potential increase in price (HK$2,450 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (HK$372 potential savings vs. average return price).
Average for return flights in January 2026
Price to beat on a round-trip flight from Hong Kong Intl to Illinois.

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 7 January 2026
Explore Illinois

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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 7 January 2026.

Thu 29-120:05HKG - ORD
2 stops32h 33mMultiple Airlines
Sat 28-215:54ORD - HKG
2 stops27h 21mMultiple Airlines
Deal found 5-1HK$6,346
Tue 19-517:35HKG - ORD
2 stops26h 05mMultiple Airlines
Thu 17-917:55ORD - HKG
2 stops26h 20mMultiple Airlines
Deal found 6-1HK$6,354
Tue 19-511:05HKG - ORD
1 stop22h 55mEVA Air
Wed 16-900:30ORD - HKG
1 stop24h 55mEVA Air
Deal found 6-1HK$6,775
Sat 21-221:10HKG - ORD
1 stop36h 25mEVA Air
Sat 28-223:30ORD - HKG
1 stop19h 30mEVA Air
Deal found 7-1HK$6,798
Fri 20-310:10HKG - ORD
1 stop23h 25mEVA Air
Tue 24-300:30ORD - HKG
1 stop20h 40mEVA Air
Deal found 6-1HK$6,814
Thu 14-520:10HKG - ORD
2 stops23h 30mMultiple Airlines
Thu 28-519:45ORD - HKG
2 stops24h 30mMultiple Airlines
Deal found 6-1HK$6,821
Mon 26-111:25HKG - ORD
1 stop21h 27mLufthansa
Sun 8-212:45ORD - HKG
1 stop28h 00mLufthansa
Deal found 5-1HK$6,829
Mon 2-220:25HKG - ORD
2 stops34h 23mAir Canada
Mon 9-215:35ORD - HKG
1 stop37h 05mAir Canada
Deal found 5-1HK$6,837
Sun 1-213:30HKG - ORD
1 stop20h 05mEVA Air
Sat 28-223:30ORD - HKG
1 stop19h 30mEVA Air
Deal found 7-1HK$6,845
Tue 19-512:20HKG - ORD
2 stops37h 01mDelta
Thu 17-918:30ORD - HKG
1 stop21h 30mDelta
Deal found 6-1HK$6,860
Mon 26-120:25HKG - ORD
1 stop34h 17mAir Canada
Sun 8-217:52ORD - HKG
2 stops34h 48mAir Canada
Deal found 4-1HK$6,868
Sun 1-200:55HKG - MDW
2 stops25h 51mDelta
Mon 9-206:00MDW - HKG
2 stops27h 10mDelta
Deal found 5-1HK$6,915

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 70,647 searches and data was last updated on 7 January 2026.
Use the filters below to find and compare flights to Illinois that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Thu 30-4

20:10-06:40

2 stops23h 30m

Chicago O'Hare Intl

Mon 10-8

18:53-09:15

2 stops25h 22m

HK$6,346

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Thu 29-1

20:05-14:38

2 stops32h 33m

Chicago O'Hare Intl

Sat 28-2

15:54-09:15

2 stops27h 21m

HK$6,346

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Mon 23-2

20:05-16:33

2 stops34h 28m

Chicago O'Hare Intl

Sat 28-2

15:54-10:25

2 stops28h 31m

HK$6,346

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Tue 19-5

20:10-06:40

2 stops23h 30m

Chicago O'Hare Intl

Thu 17-9

17:55-09:15

2 stops26h 20m

HK$6,346

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Tue 9-6

13:30-21:00

1 stop20h 30m

Chicago O'Hare Intl

Thu 30-7

00:30-10:05

1 stop20h 35m

HK$6,775

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Thu 14-5

20:10-06:40

2 stops23h 30m

Chicago O'Hare Intl

Thu 28-5

19:45-09:15

2 stops24h 30m

HK$6,821

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Tue 19-5

12:20-21:34

2 stops22h 14m

Chicago O'Hare Intl

Thu 17-9

14:55-05:00

1 stop25h 05m

HK$6,860

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Tue 27-1

00:55-16:57

2 stops30h 02m

Chicago O'Hare Intl

Wed 25-2

06:15-23:10

2 stops26h 55m

HK$6,915

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Sun 25-1

00:55-21:05

2 stops34h 10m

Chicago O'Hare Intl

Sat 28-2

07:40-23:10

2 stops25h 30m

HK$6,915

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Sun 1-2

13:30-19:35

1 stop20h 05m

Chicago O'Hare Intl

Fri 27-2

23:30-09:00

1 stop19h 30m

HK$7,125

Flights are sorted by cheapest return flights first.

Deals found on 6-1

Showing 1-10 of 28 results
1
2
3

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 Hong Kong to Illinois takes 18 hours 52 minutes. Flights to Illinois from other popular cities in Hong Kong will vary in length. Below are a few examples of popular routes and their flight times.

Weekly flight availability to Illinois

The most flights from Hong Kong to Illinois are scheduled on a Tuesday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

What are the cheapest airlines that fly to Illinois?

The cheapest airlines flying from Hong Kong to Illinois are EVA Air and Cathay Pacific.

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).

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 7 January 2026.
See what other customers who have flown with EVA Air and Cathay Pacific to the United States have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.4

Comfort

8.3

Food

8.1

Crew

8.6

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Jan 2026

CGK - TPE

I had lots of room on the exit row. Boarding was quick and easy.

Boarding

8.4

Comfort

8.3

Food

8.1

Crew

8.6

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Jan 2026

CGK - TPE

I had lots of room on the exit row. Boarding was quick and easy.

Boarding

8.4

Comfort

8.3

Food

8.1

Crew

8.6

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Jan 2026

CGK - TPE

I had lots of room on the exit row. Boarding was quick and easy.

FAQs about flying to Illinois

Illinois climate

Illinois’s winters are very cold and long with snow and icy winds from late November through to April. Summers, especially July and August, the weather tends to be hot and humid. The best times to visit is when the weather is perfect, in spring and autumn; tornado season can occur anytime between the months of March and May. Chicago’s summers are humid with highs of 30 degrees (Celsius) or more and its winters are bitterly cold.

Getting around Illinois

Public transportation is reliable and taxis are easy to find. Driving is not recommended because of heavy traffic and parking is almost impossible to find. The El, a system operated by The Chicago Transit Authority consists of elevated trains running 24 hours a day. During the summer rush hour a River Bus is available.

What is good to know if travelling to Illinois?

  • Chicago has a wealth of things to see and do. The best view of the city can be found at 1,450 feet from the top of North America’s tallest building – the Sears Tower. Head to the 103rd floor to the Skydeck where you can see the entire city laid out.  The Hancock Building is also well worth a visit and offers stunning city views from its observation deck or cocktail bar.
  • Don’t miss a trip to the Anderson Japanese Gardens in Rockford. Set on twelve acres the gardens are adorned with Japanese maples, magnolias, and rhododendrons and have several ponds and waterfalls with Japanese bronze structures surrounding them. There’s also an authentic tea house and contemporary “Garden of Reflection”.  
  • Visit the preserved Frank Lloyd Wright Museum on Chicago Avenue in Oak Park where the famed architect spent 20 years of his career and designed 130 of his masterpieces.  Wright lived here until 1909.
  • One of the most visited attractions in Chicago is the Art Institute of Chicago. Art lovers – well any visitor – shouldn’t miss a trip to the museum, it’s remarkable. The gargantuan building houses more than 250,000 works of art from all over the world including ancient Egyptian, Japanese, Korean, Greek and Roman relics. One of its highlights is the anthology of Impressionist art which has an impressive collection by Monet, Pablo Picasso and Henri Matisse to name a few.
  • Anyone interested in the lives of the Amish people should head to central Illinois where a welcoming group of Amish villages are set up. Take a tour of the community in the Illinois Amish Interpretative Centre in Arcola, visit a working farm and watch how supper is prepared and enjoyed in a family home.
  • When is the best time to fly to Illinois?

    Peak Season: Winter is peak season in Illinois for skiing and snowmobiling. In summer many different festivals take place in Chicago’s parks and neighbourhoods almost every weekend, making it difficult to find a cheap Illinois flight. Off Season: The best month to book a cheap Illinois flight is September, which is also the mildest month. Autumn is visually the prettiest time to visit when the temperature is still mild and the foliage is changing. The quietest months in Chicago are from January to March but they can also be the coldest and windiest.

  • 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, EVA Air 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 HK$265, while return flights cost around HK$1,312.

  • How much is a return flight to Illinois?

    A return flight to Illinois will typically cost around HK$2,200, however they can be found for as little as HK$1,312.

  • Where does the fastest flight to Illinois depart from?

    For those looking to save time traveling to Illinois, Hong Kong Intl offers the quickest one-way flight (14 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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