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$353+ 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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SIN
dic. 3 — dic. 101
mié. 12/3
mié. 12/10
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 noviembre 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$898
(FlightHub)

One-way from

$353
(oojo)

Popular in

December

Cheapest in

February

Average price

$1,131
Provider with most accurate pricing for Chicago (CHI)-Singapore Changi flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Singapore Changi flights.
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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. 15% potential increase in price ($208 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($66 potential savings vs. average RT price).
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Average for round-trip flights in November 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 noviembre 3, 2025.

This FlightHub deal was found by Cheapflights users on 11/2. 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.
dom. 11/1611:50 amORD - SIN
1 stop30h 55mTurkish Airlines
sáb. 11/2210:25 amSIN - ORD
1 stop37h 40mTurkish Airlines
Deal found 11/2$898
This FlightHub deal was found by Cheapflights users on 11/1. 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.
mié. 12/31:30 pmORD - SIN
1 stop27h 30mAir India
lun. 2/1611:00 pmSIN - ORD
2 stops50h 30mAir India
Deal found 11/1$899
This CrystalTravel deal was found by Cheapflights users on 11/2. 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.
mié. 12/32:35 pmORD - SIN
1 stop32h 30mCathay Pacific
lun. 2/161:25 amSIN - ORD
1 stop25h 30mCathay Pacific
Deal found 11/2$918
This FlightHub deal was found by Cheapflights users on 11/2. 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.
jue. 11/1311:50 amORD - SIN
1 stop39h 45mTurkish Airlines
dom. 11/1610:25 amSIN - ORD
1 stop46h 00mTurkish Airlines
Deal found 11/2$919
This oojo deal was found by Cheapflights users on 11/3. 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.
dom. 11/1611:50 amORD - SIN
1 stop30h 55mTurkish Airlines
mié. 11/1911:25 pmSIN - ORD
1 stop24h 40mTurkish Airlines
Deal found 11/3$925
This KAYAK deal was found by Cheapflights users on 11/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/311:50 amORD - SIN
1 stop32h 10mTurkish Airlines
jue. 2/195:15 amSIN - ORD
1 stop27h 10mTurkish Airlines
Deal found 11/2$926
This FlightHub deal was found by Cheapflights users on 11/2. 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.
vie. 11/142:35 pmORD - SIN
1 stop25h 05mCathay Pacific
lun. 11/171:25 amSIN - ORD
1 stop25h 30mCathay Pacific
Deal found 11/2$927
This Ovago deal was found by Cheapflights users on 11/2. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/162:35 pmORD - SIN
1 stop25h 05mCathay Pacific
mar. 11/256:00 pmSIN - ORD
1 stop32h 55mCathay Pacific
Deal found 11/2$937
This KAYAK deal was found by Cheapflights users on 11/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/162:35 pmORD - SIN
1 stop25h 05mCathay Pacific
mié. 11/267:40 amSIN - ORD
1 stop19h 15mCathay Pacific
Deal found 11/2$939
This oojo deal was found by Cheapflights users on 11/2. 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.
mié. 11/192:35 pmORD - SIN
1 stop25h 05mCathay Pacific
mié. 11/267:40 amSIN - ORD
1 stop19h 15mCathay Pacific
Deal found 11/2$940
This KAYAK deal was found by Cheapflights users on 11/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/311:50 amORD - SIN
1 stop30h 55mTurkish Airlines
dom. 2/1510:25 amSIN - ORD
1 stop46h 00mTurkish Airlines
Deal found 11/2$948
This Delta deal was found by Cheapflights users on 11/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/185:34 pmMDW - SIN
2 stops36h 51mDelta
mar. 11/2510:40 amSIN - MDW
2 stops27h 00mDelta
Deal found 11/2$1,138

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 noviembre 3, 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

jue. 1/8

6:50 pm-8:45 am

1 stop23h 55m

Singapore Changi

sáb. 2/28

3:15 am-2:30 pm

1 stop25h 15m

$1,050

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

sáb. 3/7

2:55 pm-5:45 pm

1 stop36h 50m

Singapore Changi

mar. 3/10

9:00 am-11:56 pm

1 stop27h 56m

$1,051

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

vie. 3/13

8:05 pm-8:45 am

1 stop23h 40m

Singapore Changi

vie. 3/20

3:15 am-3:45 pm

1 stop25h 30m

$1,090

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

vie. 1/16

5:04 pm-11:55 am

2 stops28h 51m

Singapore Changi

sáb. 1/31

2:05 pm-11:59 pm

2 stops23h 54m

$1,098

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

dom. 1/4

6:50 pm-2:55 pm

1 stop30h 05m

Singapore Changi

mié. 3/4

8:15 pm-2:30 pm

1 stop32h 15m

$1,128

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

jue. 1/15

6:50 pm-6:35 pm

2 stops33h 45m

Singapore Changi

dom. 1/25

3:15 am-2:30 pm

1 stop25h 15m

$1,134

ChicagoSingapore

MDW - SIN

MDWSIN

Chicago Midway

mié. 1/21

6:00 am-12:10 am

2 stops28h 10m

Singapore Changi

lun. 2/2

10:30 pm-12:48 pm

2 stops28h 18m

$1,138

ChicagoSingapore

MDW - SIN

MDWSIN

Chicago Midway

lun. 2/23

6:00 am-5:00 am

2 stops33h 00m

Singapore Changi

lun. 3/9

10:40 am-9:56 am

2 stops36h 16m

$1,144

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

dom. 3/8

5:59 pm-1:05 pm

2 stops30h 06m

Singapore Changi

jue. 3/12

12:55 pm-5:57 pm

2 stops42h 02m

$1,149

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

mar. 4/7

8:20 pm-12:25 pm

2 stops27h 05m

Singapore Changi

lun. 4/13

1:50 am-2:25 pm

1 stop25h 35m

$1,152

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 57 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, September is the cheapest month in which you can book a flight from Illinois to Singapore (average of $661). Flying from Illinois to Singapore in June is currently the most expensive (average of $1,199). 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 noviembre 3, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 48% on flights from Illinois to Singapore by exploring options for tickets at noon.

What is the cheapest day to fly from Illinois to Singapore?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Singapore. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Singapore flight should consider departing on Monday at noon when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 23h 55m. The distance between Illinois and Singapore is about 9345 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Illinois to Singapore one-way?

    One-way options have recently been found by users for as low as $353 on Air India. Other airlines that offer cheap prices include Turkish Airlines from $444 and Delta from $645 one-way.

  • 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, September is the cheapest month in which you can book a flight from Illinois to Singapore (average of $661). Flying from Illinois to Singapore in June is currently the most expensive (average of $1,199). 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

Browse thousands of different options on Cheapflights for your next trip

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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 noviembre 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$675Average$921FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$701Average$883FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$709Average$1,293FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$744Average$910FlexibilityNo cancel feeOn-time77%
Japan AirlinesCheapest$791Average$1,081FlexibilityNo cancel feeOn-time79%
Qatar AirwaysCheapest$850Average$1,204FlexibilityNo cancel feeOn-time68%
Air CanadaCheapest$884Average$1,340FlexibilityNo cancel feeOn-time67%
Etihad AirwaysCheapest$909Average$1,236FlexibilityNo cancel feeOn-time75%
Korean AirCheapest$940Average$1,400FlexibilityNo cancel feeOn-time81%
ANACheapest$1,024Average$1,427FlexibilityNo cancel feeOn-time80%

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