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$272+ Cheap flights from Illinois to Singapore

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SIN
Aug 27 — Sep 31
Wed 8/27
Wed 9/3
1 adult, Economy
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Cheap flight deals from Illinois to Singapore

Keep the following information in mind while searching for Illinois to Singapore flight deals. Data was last updated August 22, 2025.

Round-trip from

$710
(FlightHub)

One-way from

$272
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,153
From Illinois to Singapore
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One-way flight from Illinois to Singapore
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Highest demand for flights based on searches. 12% potential increase in price ($161 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($58 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Illinois to Singapore

Cheapest flights from Illinois to Singapore
Explore the most affordable flight options available from Illinois to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 22, 2025.

This FlightHub deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/314:00 pmORD - SIN
1 stop24h 30mCathay Pacific
Mon 9/88:05 pmSIN - ORD
1 stop31h 20mCathay Pacific
Deal found 8/21$710
This United Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/304:25 pmORD - SIN
1 stop24h 30mUnited Airlines
Tue 12/910:10 amSIN - ORD
2 stops24h 15mUnited Airlines
Deal found 8/20$711
This United Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/236:35 pmORD - SIN
1 stop22h 40mUnited Airlines
Wed 8/276:15 amSIN - ORD
2 stops27h 26mUnited Airlines
Deal found 8/19$714
This FlightHub deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/315:45 pmORD - SIN
1 stop23h 55mANA
Mon 9/810:10 pmSIN - ORD
1 stop30h 00mANA
Deal found 8/21$715
This Mytrip deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:19 amORD - SIN
2 stops28h 26mANA
Wed 9/176:15 amSIN - ORD
2 stops27h 10mANA
Deal found 8/21$716
This oojo deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/184:00 pmORD - SIN
1 stop34h 25mCathay Pacific
Thu 9/251:50 amSIN - ORD
1 stop25h 35mCathay Pacific
Deal found 8/20$718
This CrystalTravel deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/82:40 pmORD - SIN
1 stop32h 25mCathay Pacific
Sat 11/158:15 pmSIN - ORD
1 stop30h 45mCathay Pacific
Deal found 8/20$726
This United Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/228:50 amORD - SIN
2 stops26h 55mUnited Airlines
Tue 8/266:15 amSIN - ORD
2 stops25h 38mUnited Airlines
Deal found 8/19$727
This CrystalTravel deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/204:00 pmORD - SIN
1 stop24h 30mCathay Pacific
Sat 9/278:05 pmSIN - ORD
1 stop31h 20mCathay Pacific
Deal found 8/21$729
This Trip.com deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/46:15 amORD - SIN
1 stop23h 10mUnited Airlines
Sat 10/118:40 pmSIN - ORD
1 stop28h 06mUnited Airlines
Deal found 8/20$730
This Cathay Pacific deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/142:40 pmORD - SIN
1 stop25h 00mCathay Pacific
Tue 11/181:25 amSIN - ORD
1 stop25h 35mCathay Pacific
Deal found 8/18$732
This Kiwi.com deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/14:00 pmORD - SIN
1 stop24h 30mCathay Pacific
Sun 9/712:45 pmSIN - ORD
1 stop38h 40mCathay Pacific
Deal found 8/20$733

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Singapore 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 2,558,603 searches. Data last updated August 22, 2025.
Use the filters below to find and compare flights from Illinois to Singapore that are best for you.

Fly from

Illinois

Fly to

Singapore

Route

Depart

Return

Price

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Sun 9/21

10:15 am-2:50 pm

1 stop39h 35m

Singapore Changi

Thu 9/25

1:50 am-2:25 pm

1 stop25h 35m

$710

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Sun 11/30

4:25 pm-6:55 am

1 stop24h 30m

Singapore Changi

Tue 12/9

10:10 am-8:25 pm

2 stops24h 15m

$711

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Sun 11/30

4:25 pm-6:55 am

1 stop24h 30m

Singapore Changi

Mon 12/8

10:20 pm-12:10 pm

2 stops27h 50m

$711

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Sun 11/30

4:25 pm-6:55 am

1 stop24h 30m

Singapore Changi

Thu 12/11

10:10 am-10:59 pm

2 stops26h 49m

$711

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Sun 11/30

4:25 pm-6:55 am

1 stop24h 30m

Singapore Changi

Wed 12/10

10:20 pm-9:36 am

2 stops25h 16m

$711

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Sun 8/31

5:45 pm-6:40 am

1 stop23h 55m

Singapore Changi

Mon 9/8

10:10 pm-3:10 pm

1 stop30h 00m

$715

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Wed 1/28

2:40 pm-5:40 am

1 stop25h 00m

Singapore Changi

Wed 3/4

1:25 am-1:00 pm

1 stop25h 35m

$718

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Wed 11/12

7:10 am-12:55 am

2 stops27h 45m

Singapore Changi

Tue 11/18

10:45 am-5:16 am

2 stops32h 31m

$718

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Thu 1/1

2:40 pm-1:05 pm

1 stop32h 25m

Singapore Changi

Tue 1/20

4:45 pm-1:00 pm

1 stop34h 15m

$718

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Thu 9/18

11:50 am-12:45 am

1 stop23h 55m

Singapore Changi

Fri 9/26

6:15 am-7:35 pm

2 stops26h 20m

$726

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 53 results
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Best time to book a flight from Illinois to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Illinois with our price prediction graph.
Estimated round-trip 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 Illinois to Singapore

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

Currently, October is the cheapest month in which you can book a flight from Illinois to Singapore (average of $996). Flying from Illinois to Singapore in December is currently the most expensive (average of $1,684). 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.

What is the cheapest time of day to fly from IL to SG?

Find hourly flight availability from Illinois to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 22, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Singapore as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Singapore?

    Departing from Illinois to Singapore will take you 24h 30m. The distance between Illinois and Singapore is about 9345 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Singapore 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 Illinois to Singapore?

    Currently, October is the cheapest month in which you can book a flight from Illinois to Singapore (average of $996). Flying from Illinois to Singapore in December is currently the most expensive (average of $1,684). 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 Illinois to Singapore

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Illinois to Singapore

Discover the top 10 airlines that operate flights from Illinois to Singapore. 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 2,558,603 searches. Data last updated August 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$709Average$911FlexibilityNo cancel feeOn-time72%
Turkish AirlinesCheapest$729Average$837FlexibilityNo cancel feeOn-time77%
Japan AirlinesCheapest$784Average$1,062FlexibilityNo cancel feeOn-time79%
Qatar AirwaysCheapest$850Average$1,204FlexibilityNo cancel feeOn-time68%
Air CanadaCheapest$872Average$1,131FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$885Average$1,192FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$940Average$1,400FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,080Average$1,405FlexibilityNo cancel feeOn-time74%
ANACheapest$1,089Average$1,427FlexibilityNo cancel feeOn-time80%
FinnairCheapest$1,203Average$1,336FlexibilityNo cancel feeOn-time76%

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