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$352+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SIN
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
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 July 1, 2025.

Round-trip from

$1,051
(Japan Airlines)

One-way from

$352
(CrystalTravel)

Popular in

December

Cheapest in

February

Average price

$1,431
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. 11% potential increase in price ($155 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($53 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 1, 2025.

This Japan Airlines deal was found by Cheapflights users on 7/1. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/121:05 amORD - SIN
1 stop40h 05mJapan Airlines
Sat 9/208:05 amSIN - ORD
1 stop38h 00mJapan Airlines
Deal found 7/1$1,051
This SmartFares deal was found by Cheapflights users on 6/30. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/154:00 pmORD - SIN
1 stop24h 30mCathay Pacific
Sat 8/301:50 amSIN - ORD
1 stop25h 35mCathay Pacific
Deal found 6/30$1,052
This Air Canada deal was found by Cheapflights users on 6/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/28:01 pmORD - SIN
2 stops46h 04mAir Canada
Sat 8/99:10 amSIN - ORD
2 stops40h 53mAir Canada
Deal found 6/30$1,053
This Mytrip deal was found by Cheapflights users on 7/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/53:18 pmORD - SIN
3 stops39h 37mMultiple Airlines
Fri 9/197:45 pmSIN - ORD
2 stops35h 10mMultiple Airlines
Deal found 7/1$1,056
This KAYAK deal was found by Cheapflights users on 7/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/812:15 pmORD - SIN
1 stop30h 00mAir India
Thu 8/218:45 amSIN - ORD
2 stops38h 30mAir India
Deal found 7/1$1,078
This American Airlines deal was found by Cheapflights users on 6/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/291:30 amORD - SIN
1 stop27h 00mAmerican Airlines
Sun 9/78:05 amSIN - ORD
2 stops24h 52mAmerican Airlines
Deal found 6/30$1,080
This oojo deal was found by Cheapflights users on 7/1. 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.
Tue 9/163:20 pmORD - SIN
2 stops32h 15mChina Airlines
Mon 9/222:00 amSIN - ORD
2 stops42h 03mChina Airlines
Deal found 7/1$1,083
This FlightHub deal was found by Cheapflights users on 7/1. 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.
Tue 9/169:10 amORD - SIN
2 stops25h 30mKorean Air
Mon 9/221:10 amSIN - ORD
1 stop21h 20mKorean Air
Deal found 7/1$1,089
This CrystalTravel deal was found by Cheapflights users on 7/1. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/412:30 amORD - SIN
1 stop24h 20mEVA Air
Wed 9/101:10 pmSIN - ORD
1 stop20h 35mEVA Air
Deal found 7/1$1,090
This United Airlines deal was found by Cheapflights users on 6/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/14:43 pmSTL - SIN
2 stops25h 17mUnited Airlines
Tue 12/1610:20 pmSIN - STL
2 stops26h 07mUnited Airlines
Deal found 6/30$1,100
This Air Canada deal was found by Cheapflights users on 6/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/41:30 pmSTL - SIN
2 stops28h 35mAir Canada
Fri 9/128:10 amSIN - STL
2 stops48h 47mAir Canada
Deal found 6/29$1,101
This SmartFares deal was found by Cheapflights users on 6/30. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1411:50 amORD - SIN
1 stop23h 55mANA
Thu 8/216:15 amSIN - ORD
1 stop21h 40mANA
Deal found 6/30$1,114

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 July 1, 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

Fri 9/12

1:05 am-6:10 am

1 stop40h 05m

Singapore Changi

Sat 9/20

8:05 am-9:05 am

1 stop38h 00m

$1,051

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Fri 8/15

4:00 pm-5:30 am

1 stop24h 30m

Singapore Changi

Sat 8/30

1:50 am-2:25 pm

1 stop25h 35m

$1,052

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Sat 8/2

8:01 pm-7:05 am

2 stops46h 04m

Singapore Changi

Sat 8/9

9:10 am-1:03 pm

2 stops40h 53m

$1,053

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Tue 8/5

3:18 pm-7:55 pm

3 stops39h 37m

Singapore Changi

Fri 9/19

7:45 pm-5:55 pm

2 stops35h 10m

$1,056

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Fri 8/8

12:15 pm-7:15 am

1 stop30h 00m

Singapore Changi

Thu 8/21

8:45 am-10:15 am

2 stops38h 30m

$1,078

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Fri 8/29

1:30 am-5:30 pm

1 stop27h 00m

Singapore Changi

Sun 9/7

8:05 am-7:57 pm

2 stops24h 52m

$1,080

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Tue 9/16

9:10 am-11:40 pm

2 stops25h 30m

Singapore Changi

Mon 9/22

1:10 am-9:30 am

1 stop21h 20m

$1,089

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Thu 9/4

12:30 am-1:50 pm

1 stop24h 20m

Singapore Changi

Wed 9/10

1:10 pm-8:45 pm

1 stop20h 35m

$1,090

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Mon 12/1

4:43 pm-8:00 am

2 stops25h 17m

Singapore Changi

Tue 12/16

10:20 pm-10:27 am

2 stops26h 07m

$1,100

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Thu 9/4

1:30 pm-7:05 am

2 stops28h 35m

Singapore Changi

Fri 9/12

8:10 am-7:57 pm

2 stops48h 47m

$1,101

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 42 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 $1,008). Flying from Illinois to Singapore in December is currently the most expensive (average of $1,674). 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 July 1, 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.

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. 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 Singapore. Reviews last updated July 1, 2025.
Get a feel of what it's like to fly with EVA Air, ANA, and Korean Air from Illinois to Singapore by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,214 reviews

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Boarding

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,214 reviews
EVA Air
8.4
Very good
1,214 reviews

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Boarding

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
ANA
8.4
Very good
892 reviews
EVA Air
8.4
Very good
1,214 reviews

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Boarding

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very good
1,101 reviews
EVA Air
8.4
Very good
1,214 reviews

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Boarding

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Japan Airlines
8.3
Very good
1,505 reviews
EVA Air
8.4
Very good
1,214 reviews

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Boarding

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Airlines
8.3
Very good
745 reviews
EVA Air
8.4
Very good
1,214 reviews

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Boarding

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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.

  • 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 $352 on Cathay Pacific. Other airlines that offer cheap prices include Air India from $386 and IndiGo from $436 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, October is the cheapest month in which you can book a flight from Illinois to Singapore (average of $1,008). Flying from Illinois to Singapore in December is currently the most expensive (average of $1,674). 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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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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$730Average$883FlexibilityNo cancel feeOn-time77%
Japan AirlinesCheapest$783Average$856FlexibilityNo cancel feeOn-time79%
Cathay PacificCheapest$812Average$996FlexibilityNo cancel feeOn-time72%
Qatar AirwaysCheapest$850Average$1,299FlexibilityNo cancel feeOn-time68%
United AirlinesCheapest$871Average$1,268FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$872Average$1,253FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$970Average$1,400FlexibilityNo cancel feeOn-time81%
ANACheapest$1,089Average$1,427FlexibilityNo cancel feeOn-time80%
EVA AirCheapest$1,100Average$1,414FlexibilityNo cancel feeOn-time74%
FinnairCheapest$1,203Average$1,349FlexibilityNo cancel feeOn-time76%

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