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$342+ 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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SIN
mar 4 — mar 111
mer 3/4
mer 3/11
1 adult, Economy
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Cheap 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 febbraio 2, 2026.

This IEagle deal was found by Cheapflights users on 2/1. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 3/92:30 pm
ORD
-
SIN
1 stop42h 15m
Air India
lun 3/1611:00 pm
SIN
-
ORD
2 stops50h 30m
Air India
Deal found 2/1$717
This oojo deal was found by Cheapflights users on 1/31. 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.
lun 4/201:10 pm
ORD
-
SIN
1 stop41h 20m
Air India
lun 5/411:00 pm
SIN
-
ORD
2 stops49h 10m
Air India
Deal found 1/31$761
This Justfly.com deal was found by Cheapflights users on 1/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 3/109:20 pm
ORD
-
SIN
1 stop31h 15m
Turkish Airlines
mar 3/245:15 am
SIN
-
ORD
1 stop42h 50m
Turkish Airlines
Deal found 1/29$771
This Justfly.com deal was found by Cheapflights users on 2/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 2/108:20 pm
ORD
-
SIN
1 stop22h 15m
Turkish Airlines
mer 2/1811:40 am
SIN
-
ORD
1 stop36h 25m
Turkish Airlines
Deal found 2/1$780
This Justfly.com deal was found by Cheapflights users on 1/31. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 2/811:50 am
ORD
-
SIN
1 stop30h 45m
Turkish Airlines
mar 2/245:15 am
SIN
-
ORD
1 stop42h 50m
Turkish Airlines
Deal found 1/31$781
This IEagle deal was found by Cheapflights users on 1/30. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 3/162:30 pm
ORD
-
SIN
1 stop42h 15m
Air India
lun 3/2311:00 pm
SIN
-
ORD
2 stops50h 30m
Air India
Deal found 1/30$786
This Bravofly deal was found by Cheapflights users on 1/31. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 3/1712:50 pm
ORD
-
SIN
1 stop30h 45m
Turkish Airlines
mar 3/2411:25 pm
SIN
-
ORD
1 stop24h 40m
Turkish Airlines
Deal found 1/31$806
This Justfly.com deal was found by Cheapflights users on 1/31. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 4/208:10 pm
ORD
-
SIN
1 stop32h 45m
Turkish Airlines
lun 5/411:05 pm
SIN
-
ORD
1 stop23h 35m
Turkish Airlines
Deal found 1/31$808
This Delta deal was found by Cheapflights users on 1/31. 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 3/36:20 pm
MDW
-
SIN
2 stops39h 50m
Delta
lun 3/91:35 am
SIN
-
MDW
2 stops33h 56m
Delta
Deal found 1/31$901
This oojo deal was found by Cheapflights users on 2/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven 10/169:42 am
STL
-
SIN
2 stops37h 03m
Cathay Pacific
mer 10/211:45 am
SIN
-
STL
2 stops34h 20m
Cathay Pacific
Deal found 2/1$1,029
This Delta deal was found by Cheapflights users on 1/30. 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.
dom 11/225:25 pm
MDW
-
SIN
2 stops40h 45m
Delta
dom 11/2910:30 pm
SIN
-
MDW
2 stops31h 55m
Delta
Deal found 1/30$1,051
This Delta deal was found by Cheapflights users on 1/31. 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 3/179:35 am
MDW
-
SIN
2 stops45h 50m
Delta
gio 3/2610:40 am
SIN
-
MDW
2 stops59h 13m
Delta
Deal found 1/31$1,052

Find flight deals from Illinois to Singapore

Keep the following information in mind while searching for Illinois to Singapore flight deals. Data was last updated febbraio 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$717
(IEagle)

One-way from

$342
(Orbitz)

Popular in

December

Cheapest in

February

Average price

$815
Provider with most accurate pricing for Chicago (CHI)-Singapore Changi flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Singapore Changi flights.
Search Deals
From Illinois to Singapore
Search Deals
One-way flight from Illinois to Singapore
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($190 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($72 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 febbraio 2, 2026.
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

mar 3/3

8:20 pm-8:35 am

1 stop22h 15m

Singapore Changi

mar 3/10

10:15 am-11:05 am

1 stop37h 50m

$803

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

gio 4/30

11:25 am-9:30 am

1 stop33h 05m

Singapore Changi

gio 5/14

11:05 pm-9:40 am

1 stop23h 35m

$838

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

lun 3/16

2:30 pm-9:45 pm

1 stop42h 15m

Singapore Changi

gio 3/26

8:00 pm-12:30 pm

2 stops29h 30m

$877

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

mer 4/15

6:25 am-6:35 pm

1 stop23h 10m

Singapore Changi

lun 5/4

9:00 am-8:19 pm

1 stop24h 19m

$882

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

mer 3/18

6:17 am-8:15 pm

1 stop24h 58m

Singapore Changi

lun 3/30

9:00 am-12:59 am

1 stop28h 59m

$882

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

lun 3/23

2:26 pm-7:00 am

1 stop27h 34m

Singapore Changi

lun 3/30

9:00 am-12:59 am

1 stop28h 59m

$882

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

mar 3/24

2:26 pm-7:00 am

1 stop27h 34m

Singapore Changi

lun 3/30

9:00 am-12:59 am

1 stop28h 59m

$882

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

lun 3/9

9:15 pm-8:15 pm

2 stops34h 00m

Singapore Changi

lun 3/16

10:20 pm-12:00 pm

2 stops26h 40m

$886

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

mar 3/3

2:02 pm-8:00 am

2 stops27h 58m

Singapore Changi

mar 3/10

10:10 am-8:15 pm

1 stop23h 05m

$886

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

lun 3/9

6:17 am-8:15 pm

1 stop24h 58m

Singapore Changi

gio 3/12

10:10 am-10:55 pm

2 stops25h 45m

$886

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/31

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 December is currently the most expensive (average of $1,314). 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.

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 22h 15m. 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 $370 on Cathay Pacific. Other airlines that offer cheap prices include Turkish Airlines from $444 and United Airlines from $446 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 December is currently the most expensive (average of $1,314). 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 febbraio 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$675Average$925FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$698Average$883FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$709Average$1,195FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$795Average$1,103FlexibilityNo cancel feeOn-time77%
Etihad AirwaysCheapest$830Average$1,058FlexibilityNo cancel feeOn-time75%
Korean AirCheapest$858Average$1,203FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$872Average$1,340FlexibilityNo cancel feeOn-time67%
Japan AirlinesCheapest$988Average$1,081FlexibilityNo cancel feeOn-time79%
ANACheapest$1,024Average$1,426FlexibilityNo cancel feeOn-time80%
EVA AirCheapest$1,086Average$1,454FlexibilityNo cancel feeOn-time74%

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