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HK$4,344+ 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 5-4. Fares are subject to change and may not be available on all flights or dates of travel.
— ORD
25 Jan — 1 Feb1
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 20 January 2025.

Return from

HK$6,595

One-way from

HK$4,344

Popular in

August

Cheapest in

February

Average price

HK$9,981
EVA Air
  • EVA Air
  • 11-6-5-8
  • 2 total stops
  • 41h 55m total
  • Hong Kong to Chicago
United Airlines
  • United Airlines
  • 5-4
  • 2 total stops
  • 26h 16m total
  • Hong Kong to Illinois
High demand for flights, 18% potential price rise
Best time to find cheap flights, 4% potential price drop
Average for return flights in January 2025

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 20 January 2025.

Wed 11-617:00HKG - ORD
1 stop17h 00mEVA Air
Tue 5-800:30ORD - HKG
1 stop24h 55mEVA Air
Deal found 19-1HK$6,595
Wed 5-313:20HKG - ORD
2 stops23h 46mMultiple Airlines
Wed 12-316:45ORD - HKG
2 stops30h 15mMultiple Airlines
Deal found 19-1HK$7,241
Sun 15-618:00HKG - ORD
1 stop33h 53mAir Canada
Tue 5-808:40ORD - HKG
2 stops25h 05mAir Canada
Deal found 19-1HK$7,350
Thu 23-110:30HKG - ORD
2 stops23h 55mUnited Airlines
Sun 2-214:39ORD - HKG
2 stops26h 21mUnited Airlines
Deal found 19-1HK$7,747
Tue 4-300:55HKG - ORD
1 stop21h 45mKorean Air
Wed 12-312:25ORD - HKG
1 stop33h 55mKorean Air
Deal found 19-1HK$8,541
Mon 21-412:30HKG - ORD
Nonstop14h 55mCathay Pacific
Thu 1-516:05ORD - HKG
Nonstop15h 40mCathay Pacific
Deal found 19-1HK$8,619
Tue 4-300:55HKG - ORD
2 stops26h 00mDelta
Wed 12-306:15ORD - HKG
2 stops27h 55mDelta
Deal found 19-1HK$8,798
Tue 4-300:55HKG - MDW
2 stops35h 25mDelta
Wed 12-309:25MDW - HKG
2 stops24h 45mDelta
Deal found 19-1HK$8,798
Tue 8-710:30HKG - ORD
1 stop44h 25mTurkish Airlines
Tue 29-711:35ORD - HKG
1 stop32h 15mTurkish Airlines
Deal found 19-1HK$8,860
Tue 10-601:25HKG - ORD
1 stop27h 00mQatar Airways
Wed 6-819:40ORD - HKG
2 stops39h 10mQatar Airways
Deal found 19-1HK$9,600
Tue 15-423:55HKG - ORD
1 stop26h 00mLufthansa
Thu 22-516:00ORD - HKG
1 stop34h 45mLufthansa
Deal found 19-1HK$10,807
Wed 16-400:05HKG - ORD
1 stop25h 05mSWISS
Wed 21-519:05ORD - HKG
1 stop32h 35mSWISS
Deal found 19-1HK$10,853

Find flights to Illinois within your budget

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 20 January 2025.

Fly from

Any airport

Route

Departure

Return

Price

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Wed 11-6

17:00-21:00

1 stop17h 00m

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

Wed 5-3

13:20-23:06

2 stops23h 46m

Chicago O'Hare Intl

Wed 12-3

16:45-12:00

2 stops30h 15m

HK$7,241

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Sun 15-6

18:00-14:53

1 stop33h 53m

Chicago O'Hare Intl

Tue 5-8

08:40-22:45

2 stops25h 05m

HK$7,350

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Wed 5-3

10:30-18:55

2 stops22h 25m

Chicago O'Hare Intl

Wed 12-3

13:05-05:55

2 stops27h 50m

HK$7,747

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Tue 4-3

00:55-08:40

1 stop21h 45m

Chicago O'Hare Intl

Wed 12-3

12:25-11:20

1 stop33h 55m

HK$8,541

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Mon 21-4

12:30-14:25

Nonstop14h 55m

Chicago O'Hare Intl

Thu 1-5

16:05-20:45

Nonstop15h 40m

HK$8,619

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Tue 4-3

00:55-12:55

2 stops26h 00m

Chicago O'Hare Intl

Wed 12-3

06:15-23:10

2 stops27h 55m

HK$8,798

Hong KongChicago

HKG - MDW

HKGMDW

Hong Kong Intl

Tue 4-3

00:55-22:20

2 stops35h 25m

Chicago Midway

Wed 12-3

09:25-23:10

2 stops24h 45m

HK$8,798

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Tue 8-7

10:30-17:55

1 stop44h 25m

Chicago O'Hare Intl

Tue 29-7

11:35-08:50

1 stop32h 15m

HK$8,860

Hong KongChicago

HKG - ORD

HKGORD

Hong Kong Intl

Tue 10-6

01:25-15:25

1 stop27h 00m

Chicago O'Hare Intl

Wed 6-8

19:40-23:50

2 stops39h 10m

HK$9,600

Flights are sorted by cheapest return flights first.

Deals found on 19-1

Showing 1-10 of 33 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.

Travel insights for flights to Illinois

Get recent, data-driven insights about flights to Illinois including ideal travel times, pricing trends, and more.

How long is the flight to Illinois?

On average, a flight from Hong Kong to Illinois takes 20 hours 56 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 Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 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 20 January 2025.
Peruse reviews from past customers who have flown United Airlines, Korean Air and Cathay Pacific 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.
8.5
Very Good
1,039 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

8.5
Very Good
1,039 reviews
8.5
Very Good
1,039 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

8.4
Very Good
1,255 reviews
8.5
Very Good
1,039 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

8.3
Very Good
466 reviews
8.5
Very Good
1,039 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

8.1
Very Good
3,356 reviews
8.5
Very Good
1,039 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

8.1
Very Good
1,328 reviews
8.5
Very Good
1,039 reviews

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

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$438, while return flights cost around HK$1,800.

  • How much is a return flight to Illinois?

    A return flight to Illinois will typically cost around HK$231, however they can be found for as little as HK$231.

  • 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).

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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.

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