Cheap flights from Singapore to Illinois from S$ 618

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 25-2. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — ORD
29 Jan — 5 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Singapore to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Singapore to Illinois
Explore the most affordable flight options available from Singapore to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 December 2025.

Wed 31-1210:10SIN - ORD
1 stop25h 22mUnited Airlines
Wed 7-110:41ORD - SIN
2 stops31h 19mUnited Airlines
Deal found 30-12S$ 1,401
Wed 31-1219:25SIN - ORD
1 stop26h 10mMultiple Airlines
Wed 7-113:30ORD - SIN
1 stop27h 30mMultiple Airlines
Deal found 30-12S$ 1,870
Tue 30-1202:00SIN - ORD
3 stops50h 20mEthiopian Air
Wed 7-113:00ORD - SIN
3 stops35h 50mEthiopian Air
Deal found 30-12S$ 2,846
Wed 31-1210:40SIN - MDW
2 stops36h 25mDelta
Wed 7-106:45MDW - SIN
2 stops32h 15mDelta
Deal found 30-12S$ 2,870

Find flight deals from Singapore to Illinois

Keep the following information in mind while searching for Singapore to Illinois flight deals. Data was last updated 30 December 2025.

Round-trip from

S$ 1,097

One-way from

S$ 618

Popular in

January

Cheapest in

April

Average price

S$ 1,605
Korean Air
  • Korean Air
  • 2-2-15-2
  • 2 total stops
  • 46h 55m total
  • Singapore to Illinois
25-2
  • 25-2
  • 3 total stops
  • 50h 51m total
  • Singapore to Illinois
Highest demand for flights based on searches. 15% potential increase in price (S$ 332 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (S$ 98 potential savings vs. average return price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customise your flight search to find flights from Singapore to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 30 December 2025.
Use the filters below to find and compare flights from Singapore to Illinois that are best for you.

Fly from

Singapore

Fly to

Illinois

Route

Depart

Return

Price

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Mon 9-2

01:35-08:40

1 stop21h 05m

Chicago O'Hare Intl

Fri 20-2

11:25-05:00

1 stop27h 35m

S$ 1,129

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Wed 4-2

01:35-08:40

1 stop21h 05m

Chicago O'Hare Intl

Wed 18-2

11:25-05:00

1 stop27h 35m

S$ 1,130

SingaporeChicago

SIN - MDW

SINMDW

Singapore Changi

Wed 11-2

22:30-17:37

2 stops33h 07m

Chicago Midway

Wed 25-2

18:20-00:10

2 stops39h 50m

S$ 1,133

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Tue 10-2

10:40-23:53

2 stops27h 13m

Chicago O'Hare Intl

Tue 17-2

06:15-05:00

2 stops32h 45m

S$ 1,133

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Tue 27-1

11:15-18:25

2 stops45h 10m

Chicago O'Hare Intl

Tue 3-2

20:20-10:15

2 stops47h 55m

S$ 1,163

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Mon 16-2

01:35-21:30

2 stops33h 55m

Chicago O'Hare Intl

Wed 18-2

11:25-00:10

1 stop22h 45m

S$ 1,178

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Tue 10-2

08:50-16:42

1 stop21h 52m

Chicago O'Hare Intl

Tue 17-2

14:02-07:00

2 stops26h 58m

S$ 1,214

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Mon 2-2

11:15-18:25

2 stops45h 10m

Chicago O'Hare Intl

Sun 15-2

13:30-07:00

1 stop27h 30m

S$ 1,217

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Tue 27-1

08:15-21:23

2 stops27h 08m

Chicago O'Hare Intl

Tue 3-2

06:00-00:50

2 stops28h 50m

S$ 1,226

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Tue 10-2

10:40-11:47

2 stops39h 07m

Chicago O'Hare Intl

Fri 20-2

11:25-05:00

1 stop27h 35m

S$ 1,257

Flights are sorted by cheapest return flights first.

Deals found on 30-12

Showing 1-10 of 35 results
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Best time to book a flight from Singapore to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Singapore 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 from Singapore to Illinois

What is the cheapest month to book a flight from Singapore to Illinois?

Currently, June is the cheapest month in which you can book a flight from Singapore to Illinois (average of S$ 892). Flying from Singapore to Illinois in January is currently the most expensive (average of S$ 1,324). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 30 December 2025.
See what other customers who have flown with EVA Air, ANA, andJapan Airlines from Singapore to Illinois have to say. 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.

Crew

8.6

Boarding

8.4

Comfort

8.3

Overall

8.5

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

Crew

8.6

Boarding

8.4

Comfort

8.3

Overall

8.5

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
8.4
Very Good

Crew

8.6

Boarding

8.4

Comfort

8.3

Overall

8.5

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

Crew

8.6

Boarding

8.4

Comfort

8.3

Overall

8.5

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

Crew

8.6

Boarding

8.4

Comfort

8.3

Overall

8.5

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

Crew

8.6

Boarding

8.4

Comfort

8.3

Overall

8.5

Food

8.1

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

Related info for your journey

Find useful and relevant information for your journey from Singapore to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Singapore to Illinois?

    Singapore Changi (SIN) is the airport you will fly out of if you book a flight from Singapore to Illinois. It is only a 16.9 km journey to Changi (SIN) from Singapore’s city centre.

  • How long is the flight from Singapore to Illinois?

    Departing from Singapore to Illinois will take you 21h 05m. Airlines will cover a distance of 15039 km. This flight may include one or multiple stops.

  • Can I find deals for flights from Singapore to Illinois that include hotel bookings?

    Yes. In addition to deals on Singapore to Illinois flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Singapore to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Singapore to Illinois.

  • Can I find deals for business class flights from Singapore to Illinois?

    Yes. Cheapflights offers flight deals from Singapore to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Singapore to Illinois?

    Currently, June is the cheapest month in which you can book a flight from Singapore to Illinois (average of S$ 892). Flying from Singapore to Illinois in January is currently the most expensive (average of S$ 1,324). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Singapore to Illinois

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Singapore to Illinois

Discover the top 4 airlines that operate flights from Singapore to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 30 December 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestS$ 886AverageS$ 1,320FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Japan AirlinesCheapestS$ 892AverageS$ 1,541FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
ANACheapestS$ 1,056AverageS$ 2,828FlexibilityNo cancel feeOn-time80%
Search ANA flights
EVA AirCheapestS$ 1,297AverageS$ 1,508FlexibilityNo cancel feeOn-time74%
Search EVA Air flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Singapore to Illinois?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Singapore to Illinois. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

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Can Cheapflights find flights from Singapore to Illinois with no change fees?

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

Can Cheapflights notify me if prices for flights from Singapore to Illinois become cheaper?

Yes, Cheapflights offers price alerts on Singapore to Illinois flights so you can book your travel at the perfect time. Price Alerts can be enabled 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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