Find flights
Deals
Airlines
Travel Guide

HK$3,965+ 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 29-5. Fares are subject to change and may not be available on all flights or dates of travel.
— ORD
29 Apr — 6 May1
1 adult

Flights to Illinois in 2025

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 70,647 searches and data was last updated on 24 April 2025.

Return from

HK$6,595

One-way from

HK$3,965

Popular in

August

Cheapest in

October

Average price

HK$7,744

Good round-trip deal

HK$10,011 or less
EVA Air
  • EVA Air
  • 11-6-5-8
  • 2 total stops
  • 47h 50m total
  • Hong Kong to Chicago
29-5
  • 29-5
  • 3 total stops
  • 59h 57m total
  • Hong Kong to Illinois
Highest demand for flights based on searches. 14% potential increase in price (HK$12,131 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (HK$2,658 potential savings vs. average return price).
Average for return flights in April 2025
Price to beat on a round-trip flight from Hong Kong Intl to Illinois.

Find flight deals to Illinois

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 24 April 2025.

Wed 11-611:05HKG - ORD
1 stop22h 55mEVA Air
Tue 5-800:30ORD - HKG
1 stop24h 55mEVA Air
Deal found 23-4HK$6,595
Fri 3-1017:10HKG - ORD
1 stop16h 35mMultiple Airlines
Tue 7-1017:10ORD - HKG
2 stops26h 40mMultiple Airlines
Deal found 22-4HK$6,968
Wed 11-618:00HKG - ORD
2 stops35h 51mAir Canada
Wed 6-815:35ORD - HKG
1 stop35h 30mAir Canada
Deal found 23-4HK$7,705
Sun 22-618:55HKG - ORD
2 stops27h 28mUnited Airlines
Sun 29-607:10ORD - HKG
1 stop20h 35mUnited Airlines
Deal found 22-4HK$7,751
Mon 12-500:45HKG - ORD
1 stop21h 55mKorean Air
Sun 21-912:10ORD - HKG
1 stop21h 20mKorean Air
Deal found 22-4HK$7,767
Thu 15-512:20HKG - ORD
2 stops22h 10mDelta
Thu 18-909:30ORD - HKG
2 stops36h 10mDelta
Deal found 22-4HK$7,798
Fri 16-500:45HKG - MDW
2 stops28h 36mDelta
Thu 18-909:20MDW - HKG
2 stops24h 10mDelta
Deal found 22-4HK$7,798
Thu 2-1001:25HKG - ORD
1 stop26h 40mQatar Airways
Mon 6-1019:20ORD - HKG
1 stop37h 25mQatar Airways
Deal found 22-4HK$8,357
Thu 5-612:40HKG - ORD
Nonstop14h 45mCathay Pacific
Mon 23-616:00ORD - HKG
Nonstop15h 50mCathay Pacific
Deal found 23-4HK$8,426
Tue 10-601:25HKG - ORD
1 stop26h 40mJetBlue
Wed 6-819:20ORD - HKG
1 stop30h 50mJetBlue
Deal found 22-4HK$8,791
Thu 15-523:15HKG - ORD
1 stop29h 40mSWISS
Wed 17-919:05ORD - HKG
1 stop32h 35mSWISS
Deal found 22-4HK$9,474
Wed 18-622:30HKG - ORD
1 stop24h 10mTurkish Airlines
Wed 6-823:45ORD - HKG
1 stop44h 05mTurkish Airlines
Deal found 22-4HK$10,157

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 24 April 2025.
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

Wed 11-6

11:05-21:00

1 stop22h 55m

Chicago O'Hare Intl

Tue 5-8

00:30-14:25

1 stop24h 55m

HK$6,595

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Fri 3-10

17:10-20:45

1 stop16h 35m

Chicago O'Hare Intl

Tue 7-10

17:10-08:50

2 stops26h 40m

HK$6,968

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Wed 11-6

18:00-16:51

2 stops35h 51m

Chicago O'Hare Intl

Wed 6-8

15:35-16:05

1 stop35h 30m

HK$7,705

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Sun 22-6

18:55-09:23

2 stops27h 28m

Chicago O'Hare Intl

Sun 29-6

07:10-16:45

1 stop20h 35m

HK$7,751

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Mon 12-5

00:45-09:40

1 stop21h 55m

Chicago O'Hare Intl

Sun 21-9

12:10-22:30

1 stop21h 20m

HK$7,767

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Thu 15-5

12:20-21:30

2 stops22h 10m

Chicago O'Hare Intl

Thu 18-9

09:30-10:40

2 stops36h 10m

HK$7,798

Hong KongChicago

HKG - MDW

HKGMDW

Hong Kong Intl

Fri 16-5

00:45-16:21

2 stops28h 36m

Chicago Midway

Thu 18-9

09:20-22:30

2 stops24h 10m

HK$7,798

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Thu 2-10

01:25-15:05

1 stop26h 40m

Chicago O'Hare Intl

Mon 6-10

19:20-21:45

1 stop37h 25m

HK$8,357

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Thu 5-6

12:40-14:25

Nonstop14h 45m

Chicago O'Hare Intl

Mon 23-6

16:00-20:50

Nonstop15h 50m

HK$8,426

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Tue 10-6

01:25-15:05

1 stop26h 40m

Chicago O'Hare Intl

Wed 6-8

19:20-15:10

1 stop30h 50m

HK$8,791

Flights are sorted by cheapest return flights first.

Deals found on 22-4

Showing 1-10 of 34 results
1
2
3
4

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 23 hours 40 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.

When is the cheapest time to fly to Illinois?

Use this chart to determine the cheapest time to fly return from Hong Kong to Illinois. Price data was last updated on 14 April 2024.

Users looking for the lowest fares to Illinois should consider flying on Friday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Monday afternoons, when prices are usually at their highest.

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, United Airlines 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 24 April 2025.
Peruse reviews from past customers who have flown EVA Air, Korean Air and Japan Airlines to Illinois to help guide your decision. 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.

Entertainment

8.0

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

Entertainment

8.0

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

Entertainment

8.0

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

Entertainment

8.0

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
8.3
Very Good

Entertainment

8.0

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

Entertainment

8.0

Overall

8.4

Comfort

8.3

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

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$437, while return flights cost around HK$1,307.

  • How much is a return flight to Illinois?

    A return flight to Illinois will typically cost around HK$283, however they can be found for as little as HK$168.

  • 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 45 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Find flights to Illinois

Select your preferred flight destination in Illinois from the list below.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Illinois?

Cheapflights helps you search for flights to Illinois via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets to Illinois?

Cheapflights simply makes it quick and affordable to book flights to Illinois by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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 offers price alerts on Illinois flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.