S$ 596+ 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 4-12. Fares are subject to change and may not be available on all flights or dates of travel.
— ORD
18 Jul — 25 Jul1
1 adult
1 adult, Economy, 0 bags

Flights to Illinois in 2026

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 18 June 2026.

Thu 9-707:00
SIN
-
ORD
1 stop35h 40m
Air Canada
Sun 26-714:15
ORD
-
SIN
2 stops26h 00m
Air Canada
Deal found 14-6S$ 955
Sat 11-707:00
SIN
-
ORD
2 stops37h 50m
Air Canada
Sat 25-715:40
ORD
-
SIN
2 stops48h 35m
Air Canada
Deal found 13-6S$ 1,021
Tue 7-707:00
SIN
-
ORD
1 stop20h 36m
Air Canada
Wed 22-708:45
ORD
-
SIN
2 stops27h 00m
Air Canada
Deal found 13-6S$ 1,032
Sat 27-611:05
SIN
-
ORD
1 stop41h 20m
ANA
Sun 12-717:45
ORD
-
SIN
1 stop34h 30m
ANA
Deal found 17-6S$ 1,055
Sun 20-906:15
SIN
-
ORD
1 stop21h 40m
ANA
Mon 28-917:45
ORD
-
SIN
1 stop23h 55m
ANA
Deal found 14-6S$ 1,062
Thu 9-707:00
SIN
-
ORD
1 stop20h 36m
Multiple Airlines
Sun 26-709:50
ORD
-
SIN
2 stops25h 55m
Multiple Airlines
Deal found 15-6S$ 1,080
Fri 9-1007:30
SIN
-
MDW
2 stops27h 40m
Delta
Sun 11-1017:35
MDW
-
SIN
2 stops41h 20m
Delta
Deal found 16-6S$ 1,489
Wed 19-822:00
SIN
-
MDW
2 stops31h 15m
Delta
Wed 9-906:05
MDW
-
SIN
2 stops33h 55m
Delta
Deal found 17-6S$ 1,629
Sat 11-715:20
SIN
-
MDW
2 stops26h 40m
Multiple Airlines
Sat 25-721:00
MDW
-
SIN
2 stops25h 55m
Multiple Airlines
Deal found 13-6S$ 1,680
Sat 20-615:20
SIN
-
MDW
2 stops27h 35m
Multiple Airlines
Sat 27-621:00
MDW
-
SIN
2 stops25h 55m
Multiple Airlines
Deal found 13-6S$ 1,682
Sat 22-815:20
SIN
-
MDW
2 stops27h 30m
Multiple Airlines
Fri 28-820:55
MDW
-
SIN
2 stops26h 00m
Multiple Airlines
Deal found 17-6S$ 1,687
Thu 9-715:20
SIN
-
MDW
2 stops26h 40m
Multiple Airlines
Sun 26-721:35
MDW
-
SIN
2 stops25h 20m
Multiple Airlines
Deal found 14-6S$ 1,727

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 18 June 2026
Explore Illinois

Find flight deals to Illinois

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 200,618 searches and data was last updated on 18 June 2026.

Return from

S$ 955

One-way from

S$ 596

Popular in

August

Cheapest in

February

Average price

S$ 1,610
Air Canada
  • Air Canada
  • 9-7-26-7
  • 3 total stops
  • 61h 40m total
  • Singapore to Chicago
Air Canada
  • Air Canada
  • 4-12
  • 1 total stop
  • 19h 51m total
  • Singapore to Illinois
Highest demand for flights based on searches. 12% potential increase in price (S$ 212 potential increase over avg. return price).
Cheapest flight prices on average. 7% potential price decrease (S$ 101 potential savings vs. average return price).
Average for return flights in June 2026

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 200,618 searches and data was last updated on 18 June 2026.
Use the filters below to find and compare flights to Illinois that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Thu 12-11

19:45-16:55

1 stop35h 10m

Chicago O'Hare Intl

Mon 16-11

22:45-13:40

1 stop24h 55m

S$ 1,243

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Thu 30-7

07:00-21:10

2 stops27h 10m

Chicago O'Hare Intl

Wed 5-8

00:30-20:45

3 stops31h 15m

S$ 1,476

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Thu 3-9

07:30-09:30

1 stop39h 00m

Chicago O'Hare Intl

Sat 7-11

11:15-20:25

1 stop43h 10m

S$ 1,485

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Thu 29-10

01:35-09:30

1 stop20h 55m

Chicago O'Hare Intl

Tue 3-11

11:15-05:00

1 stop27h 45m

S$ 1,485

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Sat 11-7

08:45-21:03

1 stop25h 18m

Chicago O'Hare Intl

Wed 22-7

07:30-18:35

1 stop22h 05m

S$ 1,529

SingaporeChicago

SIN - MDW

SINMDW

Singapore Changi

Tue 24-11

10:40-22:10

2 stops25h 30m

Chicago Midway

Tue 1-12

06:00-05:00

2 stops33h 00m

S$ 1,629

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Fri 17-7

08:45-00:59

1 stop29h 14m

Chicago O'Hare Intl

Fri 31-7

05:00-18:35

2 stops24h 35m

S$ 1,683

SingaporeChicago

SIN - MDW

SINMDW

Singapore Changi

Sat 22-8

15:20-05:50

2 stops27h 30m

Chicago Midway

Fri 28-8

20:55-11:55

2 stops26h 00m

S$ 1,687

SingaporeChicago

SIN - MDW

SINMDW

Singapore Changi

Thu 9-7

15:20-05:00

2 stops26h 40m

Chicago Midway

Sun 26-7

21:35-11:55

2 stops25h 20m

S$ 1,727

SingaporeChicago

SIN - MDW

SINMDW

Singapore Changi

Sat 11-7

15:20-05:00

2 stops26h 40m

Chicago Midway

Sun 19-7

21:35-11:55

2 stops25h 20m

S$ 1,732

Flights are sorted by cheapest return flights first.

Deals found on 14-6

Showing 1-10 of 23 resultsSorted by cheapest first
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2
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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 Singapore to Illinois takes 22 hours 55 minutes. Flights to Illinois from other popular cities in Singapore will vary in length. Below are a few examples of popular routes and their flight times.

What are the cheapest airlines that fly to Illinois?

The cheapest airlines flying from Singapore to Illinois are United Airlines, Japan Airlines and EVA Air.

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 18 June 2026.
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 18 June 2026.
Check out reviews from past customers who have flown EVA Air,Japan Airlines, andUnited Airlines to the United States to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

8.1

Comfort

8.3

Overall

8.5

Crew

8.7

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Tony,Jun 2026

NRT - TPE

Great flight and good food…will fly again on Eva air👍🏼

Food

8.1

Comfort

8.3

Overall

8.5

Crew

8.7

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Tony,Jun 2026

NRT - TPE

Great flight and good food…will fly again on Eva air👍🏼

Food

8.1

Comfort

8.3

Overall

8.5

Crew

8.7

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Tony,Jun 2026

NRT - TPE

Great flight and good food…will fly again on Eva air👍🏼

Food

8.1

Comfort

8.3

Overall

8.5

Crew

8.7

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Tony,Jun 2026

NRT - TPE

Great flight and good food…will fly again on Eva air👍🏼

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, 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 S$ 130, while return flights cost around S$ 624.

  • How much is a return flight to Illinois?

    A return flight to Illinois will typically cost around S$ 644, however they can be found for as little as S$ 624.

  • Where does the fastest flight to Illinois depart from?

    For those looking to save time traveling to Illinois, Singapore Changi offers the quickest one-way flight (20 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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Why should you use Cheapflights to find cheap flight tickets to Illinois?

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Users can book flights with no change fees policies with our dedicated filters. Book flights to Illinois flexibly with Cheapflights today.

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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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