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$436+ Cheap flights from Illinois to Singapore (SIN)

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SIN
Apr 30 — May 71
Wed 4/30
Wed 5/7
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 April 25, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$960
(Air Canada)

One-way from

$436
(StudentUniverse)

Popular in

December

Cheapest in

February

Average price

$1,042
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 Changi
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One-way flight from Illinois to Singapore Changi
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Highest demand for flights based on searches. 9% potential increase in price ($125 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 25, 2025.

This Air Canada deal was found by Cheapflights users on 4/25. 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.
Tue 5/203:35 pmORD - SIN
1 stop26h 30mAir Canada
Tue 6/39:10 amSIN - ORD
1 stop42h 33mAir Canada
Deal found 4/25$960
This Trip.com deal was found by Cheapflights users on 4/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/274:00 pmORD - SIN
2 stops42h 45mMultiple Airlines
Sun 8/316:30 amSIN - ORD
2 stops44h 55mMultiple Airlines
Deal found 4/24$969
This Trip.com deal was found by Cheapflights users on 4/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/11:55 pmORD - SIN
1 stop30h 45mEtihad Airways
Thu 5/159:10 pmSIN - ORD
1 stop24h 35mEtihad Airways
Deal found 4/23$974
This FlightHub deal was found by Cheapflights users on 4/25. 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 6/1312:00 pmORD - SIN
1 stop42h 30mAir India
Sun 6/298:30 pmSIN - ORD
1 stop23h 55mAir India
Deal found 4/25$977
This deal was found by Cheapflights users on 4/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:50 pmORD - SIN
1 stop23h 55mTurkish Airlines
Sun 9/2111:10 pmSIN - ORD
1 stop23h 30mTurkish Airlines
Deal found 4/24$982
This StudentUniverse deal was found by Cheapflights users on 4/23. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/264:00 pmORD - SIN
1 stop24h 30mCathay Pacific
Tue 5/68:05 pmSIN - ORD
1 stop31h 20mCathay Pacific
Deal found 4/23$1,005
This CrystalTravel deal was found by Cheapflights users on 4/25. 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.
Fri 9/1912:30 amORD - SIN
1 stop24h 20mEVA Air
Thu 10/21:10 pmSIN - ORD
1 stop20h 35mEVA Air
Deal found 4/25$1,086
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Tue 5/136:30 amORD - SIN
1 stop22h 55mUnited Airlines
Thu 5/228:40 pmSIN - ORD
1 stop28h 50mUnited Airlines
Deal found 4/23$1,094
This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:10 amORD - SIN
2 stops28h 35mANA
Tue 10/76:15 amSIN - ORD
1 stop21h 40mANA
Deal found 4/23$1,097
This United Airlines deal was found by Cheapflights users on 4/24. 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.
Sun 5/116:11 pmSTL - SIN
1 stop35h 14mUnited Airlines
Wed 5/219:00 amSIN - STL
1 stop26h 45mUnited Airlines
Deal found 4/24$1,103
This Delta deal was found by Cheapflights users on 4/24. 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 5/79:20 amMDW - SIN
2 stops25h 20mDelta
Tue 5/201:10 amSIN - MDW
2 stops30h 35mDelta
Deal found 4/24$1,108
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/147:15 amORD - SIN
2 stops32h 45mDelta
Wed 5/211:10 amSIN - ORD
2 stops24h 31mDelta
Deal found 4/23$1,108

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 April 25, 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

Tue 5/20

3:35 pm-7:05 am

1 stop26h 30m

Singapore Changi

Tue 6/3

9:10 am-2:43 pm

1 stop42h 33m

$960

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Wed 8/27

4:00 pm-11:45 pm

2 stops42h 45m

Singapore Changi

Sun 8/31

6:30 am-2:25 pm

2 stops44h 55m

$969

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Fri 6/13

12:00 pm-7:30 pm

1 stop42h 30m

Singapore Changi

Sun 6/29

8:30 pm-7:25 am

1 stop23h 55m

$977

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Tue 9/16

7:50 pm-8:45 am

1 stop23h 55m

Singapore Changi

Sun 9/21

11:10 pm-9:40 am

1 stop23h 30m

$982

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Fri 5/9

1:55 pm-9:40 am

1 stop30h 45m

Singapore Changi

Mon 5/26

9:10 pm-8:45 am

1 stop24h 35m

$1,011

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Sun 7/6

4:00 pm-5:30 am

1 stop24h 30m

Singapore Changi

Sun 7/20

8:05 pm-2:25 pm

1 stop31h 20m

$1,077

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Tue 5/6

12:30 am-1:50 pm

1 stop24h 20m

Singapore Changi

Wed 5/21

1:10 pm-9:00 pm

1 stop20h 50m

$1,085

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Tue 5/13

6:30 am-6:25 pm

1 stop22h 55m

Singapore Changi

Wed 5/21

9:00 am-7:39 pm

1 stop23h 39m

$1,094

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Thu 10/2

7:10 am-12:45 am

2 stops28h 35m

Singapore Changi

Tue 10/7

6:15 am-2:55 pm

1 stop21h 40m

$1,097

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Sun 5/11

6:11 pm-6:25 pm

1 stop35h 14m

Singapore Changi

Wed 5/21

9:00 am-10:45 pm

1 stop26h 45m

$1,103

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

Showing 1-10 of 50 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 $1,011). 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 SIN?

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 April 25, 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.

Rainfall in Singapore by month

Plan your trip to Singapore by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Singapore ranges from 5.9 - 10.6 inches per month. December is typically the wettest month, when rainfall can reach 10.6 in. July is typically the driest time to visit Singapore when rainfall is around 5.9 in.

Temperature in Singapore by month

Plan your trip to Singapore by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 78.8 F).

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 April 25, 2025.
See what other customers who have flown with EVA Air, Korean Air and Japan Airlines from Illinois to Singapore have to say. 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
1,180 reviews

Crew

8.6

Overall

8.4

Food

8.1

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
EVA Air
8.4
Very good
1,180 reviews
EVA Air
8.4
Very good
1,180 reviews

Crew

8.6

Overall

8.4

Food

8.1

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
Korean Air
8.4
Very good
1,063 reviews
EVA Air
8.4
Very good
1,180 reviews

Crew

8.6

Overall

8.4

Food

8.1

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
Japan Airlines
8.3
Very good
1,456 reviews
EVA Air
8.4
Very good
1,180 reviews

Crew

8.6

Overall

8.4

Food

8.1

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
China Airlines
8.3
Very good
727 reviews
EVA Air
8.4
Very good
1,180 reviews

Crew

8.6

Overall

8.4

Food

8.1

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
ANA
8.3
Very good
852 reviews
EVA Air
8.4
Very good
1,180 reviews

Crew

8.6

Overall

8.4

Food

8.1

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

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 airport do you fly into for flights to Singapore from Illinois?

    If you book a flight to Singapore from Illinois, you will be flying to Changi, which is the city’s only airport. Singapore Changi (SIN) is located 10.5 mi from the center of Singapore.

  • 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 $436 on Cathay Pacific. Other airlines that offer cheap prices include IndiGo from $478 and Air India from $487 one-way.

  • What are the most popular routes from Illinois to Singapore?

    When deciding which route to take from Illinois to Singapore consider Chicago O'Hare Intl - Singapore Changi, Chicago Midway - Singapore Changi or Lambert-St Louis - Singapore Changi as they are the most popular.

  • 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 $1,011). 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 April 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$736Average$925FlexibilityNo cancel feeOn-time77%
Japan AirlinesCheapest$741Average$845FlexibilityNo cancel feeOn-time79%
Cathay PacificCheapest$821Average$1,014FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$885Average$1,331FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$895Average$1,253FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$985Average$1,400FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,074Average$1,322FlexibilityNo cancel feeOn-time74%
ANACheapest$1,086Average$1,687FlexibilityNo cancel feeOn-time80%
Qatar AirwaysCheapest$1,189Average$1,232FlexibilityNo cancel feeOn-time68%
FinnairCheapest$1,203Average$1,349FlexibilityNo cancel feeOn-time76%

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