HK$3,469+ 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 2-9. Fares are subject to change and may not be available on all flights or dates of travel.
— ORD
23 Jul — 30 Jul1
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 18 July 2025.

Return from

HK$6,326

One-way from

HK$3,469

Popular in

August

Cheapest in

April

Average price

HK$12,566

Good round-trip deal

HK$8,760 or less
EVA Air
  • EVA Air
  • 8-9-6-10
  • 2 total stops
  • 37h 40m total
  • Hong Kong to Chicago
2-9
  • 2-9
  • 2 total stops
  • 29h 59m total
  • Hong Kong to Illinois
Highest demand for flights based on searches. 15% potential increase in price (HK$13,726 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (HK$2,914 potential savings vs. average return price).
Average for return flights in July 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 18 July 2025.

Sun 31-821:10HKG - ORD
1 stop36h 35mEVA Air
Sat 6-900:30ORD - HKG
1 stop19h 20mEVA Air
Deal found 17-7HK$6,146
Mon 8-917:30HKG - ORD
2 stops26h 33mChina Airlines
Tue 7-1015:15ORD - HKG
2 stops32h 45mChina Airlines
Deal found 15-7HK$6,365
Tue 4-1120:25HKG - ORD
2 stops26h 48mAir Canada
Fri 21-1115:40ORD - HKG
1 stop37h 00mAir Canada
Deal found 14-7HK$6,460
Mon 13-1000:45HKG - ORD
2 stops42h 39mMultiple Airlines
Fri 7-1117:53ORD - HKG
2 stops38h 37mMultiple Airlines
Deal found 14-7HK$7,025
Sun 31-814:35HKG - ORD
1 stop37h 35mUnited Airlines
Sun 7-907:19ORD - HKG
1 stop22h 36mUnited Airlines
Deal found 17-7HK$7,425
Thu 4-912:20HKG - MDW
2 stops37h 08mDelta
Wed 17-909:20MDW - HKG
2 stops24h 10mDelta
Deal found 15-7HK$7,810
Tue 22-700:45HKG - MDW
2 stops24h 44mKorean Air
Wed 30-709:25MDW - HKG
2 stops24h 05mKorean Air
Deal found 15-7HK$13,853
Tue 29-700:45HKG - MDW
2 stops29h 18mMultiple Airlines
Sat 2-808:05MDW - HKG
1 stop31h 30mMultiple Airlines
Deal found 16-7HK$16,169
Sat 30-822:20HKG - MDW
2 stops30h 03mKLM
Wed 4-217:25MDW - HKG
2 stops32h 55mKLM
Deal found 16-7HK$24,881

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 18 July 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

Sun 31-8

21:10-20:45

1 stop36h 35m

Chicago O'Hare Intl

Sat 6-9

00:30-08:50

1 stop19h 20m

HK$6,146

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Mon 8-9

17:30-07:03

2 stops26h 33m

Chicago O'Hare Intl

Tue 7-10

15:15-13:00

2 stops32h 45m

HK$6,365

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Tue 4-11

20:25-14:41

1 stop32h 16m

Chicago O'Hare Intl

Fri 21-11

15:40-18:40

1 stop37h 00m

HK$6,389

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Thu 4-9

20:10-11:49

2 stops28h 39m

Chicago O'Hare Intl

Wed 17-9

19:06-09:15

2 stops25h 09m

HK$6,993

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Thu 9-10

22:30-09:40

1 stop24h 10m

Chicago O'Hare Intl

Mon 13-10

23:45-08:50

1 stop44h 05m

HK$7,401

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Sun 31-8

14:35-15:10

1 stop37h 35m

Chicago O'Hare Intl

Sun 7-9

08:50-18:55

1 stop21h 05m

HK$7,425

Hong KongChicago

HKG - MDW

HKGMDW

Hong Kong Intl

Thu 4-9

12:20-12:28

2 stops37h 08m

Chicago Midway

Wed 17-9

09:20-22:30

2 stops24h 10m

HK$7,810

Hong KongChicago

HKG - MDW

HKGMDW

Hong Kong Intl

Tue 29-7

00:45-17:03

2 stops29h 18m

Chicago Midway

Sat 2-8

08:05-04:35

1 stop31h 30m

HK$16,169

Hong KongChicago

HKG - MDW

HKGMDW

Hong Kong Intl

Sat 30-8

22:20-15:23

2 stops30h 03m

Chicago Midway

Wed 4-2

17:25-16:20

2 stops32h 55m

HK$24,881

Hong KongChicago

HKG - MDW

HKGMDW

Hong Kong Intl

Thu 31-7

00:45-12:29

2 stops24h 44m

Chicago Midway

Sun 17-8

18:42-10:40

2 stops26h 58m

HK$31,270

Flights are sorted by cheapest return flights first.

Deals found on 17-7

Showing 1-10 of 29 results
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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 29 hours 6 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, 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 18 July 2025.
See what other customers who have flown with EVA Air, Korean Air, andANA to the United States have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
8.4
Very Good

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Comfort

8.3

Crew

8.6

Overall

8.4

Food

8.1

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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$668, while return flights cost around HK$986.

  • How much is a return flight to Illinois?

    A return flight to Illinois will typically cost around HK$987, however they can be found for as little as HK$126.

  • 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 25 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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