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$354+ 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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SIN
Mar 27 — Apr 31
Fri 3/27
Fri 4/3
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 February 25, 2026.

This United Airlines deal was found by Cheapflights users on 2/24. 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.
Thu 4/96:25 am
ORD
-
SIN
1 stop23h 10m
United Airlines
Fri 4/248:35 pm
SIN
-
ORD
1 stop22h 45m
United Airlines
Deal found 2/24$841
This Korean Air deal was found by Cheapflights users on 2/24. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3012:15 pm
ORD
-
SIN
1 stop22h 55m
Korean Air
Sun 11/1510:30 pm
SIN
-
ORD
1 stop24h 00m
Korean Air
Deal found 2/24$843
This CrystalTravel deal was found by Cheapflights users on 2/23. 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.
Thu 10/811:50 am
ORD
-
SIN
1 stop22h 30m
ANA
Wed 10/2112:50 am
SIN
-
ORD
1 stop27h 05m
ANA
Deal found 2/23$847
This FlightHub deal was found by Cheapflights users on 2/23. 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.
Tue 3/249:20 pm
ORD
-
SIN
1 stop22h 15m
Turkish Airlines
Tue 3/3110:25 am
SIN
-
ORD
1 stop36h 15m
Turkish Airlines
Deal found 2/23$848
This United Airlines deal was found by Cheapflights users on 2/23. 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 9/1110:45 pm
ORD
-
SIN
1 stop42h 30m
United Airlines
Thu 9/248:45 am
SIN
-
ORD
1 stop22h 53m
United Airlines
Deal found 2/23$849
This FlightHub deal was found by Cheapflights users on 2/22. 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.
Wed 3/119:20 pm
ORD
-
SIN
1 stop23h 40m
Turkish Airlines
Mon 3/1611:25 pm
SIN
-
ORD
1 stop24h 40m
Turkish Airlines
Deal found 2/22$853
This Delta deal was found by Cheapflights users on 2/22. 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.
Sat 8/227:15 am
ORD
-
SIN
2 stops32h 45m
Delta
Thu 9/177:30 am
SIN
-
ORD
2 stops26h 50m
Delta
Deal found 2/22$854
This Gurufare deal was found by Cheapflights users on 2/23. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/163:45 pm
ORD
-
SIN
1 stop37h 50m
Multiple Airlines
Wed 6/38:35 pm
SIN
-
ORD
1 stop23h 41m
Multiple Airlines
Deal found 2/23$859
This FlightHub deal was found by Cheapflights users on 2/24. 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.
Fri 4/108:10 pm
ORD
-
SIN
1 stop32h 45m
Turkish Airlines
Fri 5/1510:25 am
SIN
-
ORD
1 stop36h 15m
Turkish Airlines
Deal found 2/24$862
This FlightHub deal was found by Cheapflights users on 2/21. 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.
Mon 3/162:30 pm
ORD
-
SIN
1 stop27h 30m
Air India
Thu 3/268:00 pm
SIN
-
ORD
2 stops29h 30m
Air India
Deal found 2/21$865
This oojo deal was found by Cheapflights users on 2/24. 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.
Wed 4/86:21 am
STL
-
SIN
2 stops29h 24m
Cathay Pacific
Wed 4/157:20 am
SIN
-
STL
2 stops29h 37m
Cathay Pacific
Deal found 2/24$932
This Delta deal was found by Cheapflights users on 2/24. 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.
Wed 10/286:00 am
MDW
-
SIN
2 stops29h 10m
Delta
Sun 11/1510:30 pm
SIN
-
MDW
2 stops31h 55m
Delta
Deal found 2/24$954

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 February 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$841
(United Airlines)

One-way from

$354
(Orbitz)

Popular in

December

Cheapest in

September

Average price

$881
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. 13% potential increase in price ($172 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($71 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 February 25, 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

Wed 3/11

6:17 am-8:15 pm

1 stop24h 58m

Singapore Changi

Mon 3/16

10:10 am-12:58 am

2 stops27h 48m

$870

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Fri 5/15

10:45 pm-6:35 pm

2 stops30h 50m

Singapore Changi

Fri 6/5

8:35 pm-5:57 am

1 stop22h 22m

$895

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Wed 5/27

6:10 am-6:35 pm

1 stop23h 25m

Singapore Changi

Tue 6/2

8:35 pm-5:57 am

1 stop22h 22m

$936

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Sun 8/9

10:45 pm-6:35 pm

1 stop30h 50m

Singapore Changi

Mon 8/17

11:05 am-11:20 pm

2 stops25h 15m

$945

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Tue 4/7

6:21 am-3:40 pm

2 stops44h 19m

Singapore Changi

Tue 4/14

7:20 am-11:57 pm

2 stops29h 37m

$978

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sat 5/2

2:20 pm-5:15 am

2 stops49h 55m

Singapore Changi

Sun 5/17

7:00 am-8:05 pm

2 stops50h 05m

$982

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Fri 5/15

10:45 pm-6:35 pm

2 stops30h 50m

Singapore Changi

Sat 6/6

8:45 am-9:40 pm

2 stops25h 55m

$1,045

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Wed 3/18

2:10 pm-6:55 pm

1 stop39h 45m

Singapore Changi

Sat 3/28

11:00 pm-11:10 am

1 stop49h 10m

$1,125

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Mon 5/25

6:10 am-6:35 pm

1 stop23h 25m

Singapore Changi

Mon 6/1

8:35 pm-10:20 am

2 stops26h 45m

$1,134

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Mon 5/25

6:10 am-6:35 pm

1 stop23h 25m

Singapore Changi

Tue 6/2

8:45 am-9:36 pm

2 stops25h 51m

$1,134

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 54 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 $662). 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 24h 58m. 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 $662). 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 February 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$675Average$925FlexibilityNo cancel feeOn-timeN/A
ANACheapest$698Average$1,426FlexibilityNo cancel feeOn-time80%
Cathay PacificCheapest$698Average$882FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$705Average$1,180FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$799Average$1,103FlexibilityNo cancel feeOn-time77%
Etihad AirwaysCheapest$829Average$983FlexibilityNo cancel feeOn-time75%
Korean AirCheapest$858Average$1,153FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$872Average$1,340FlexibilityNo cancel feeOn-time67%
Japan AirlinesCheapest$981Average$1,081FlexibilityNo cancel feeOn-time79%
EVA AirCheapest$1,086Average$1,389FlexibilityNo cancel feeOn-time74%

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