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$400+ 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SIN
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$954
(Air Canada)

One-way from

$400
(oojo)

Popular in

December

Cheapest in

February

Average price

$1,064
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 ($119 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 31, 2025.

This Air Canada deal was found by Cheapflights users on 3/30. 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.
Tue 5/138:40 amORD - SIN
2 stops33h 25mAir Canada
Tue 5/209:10 amSIN - ORD
1 stop42h 33mAir Canada
Deal found 3/30$954
This SmartFares deal was found by Cheapflights users on 3/30. 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.
Sun 4/64:00 pmORD - SIN
1 stop24h 30mCathay Pacific
Sat 4/121:50 amSIN - ORD
1 stop25h 35mCathay Pacific
Deal found 3/30$962
This oojo deal was found by Cheapflights users on 3/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1411:25 amORD - SIN
1 stop41h 30mTurkish Airlines
Wed 5/2111:10 pmSIN - ORD
1 stop23h 30mTurkish Airlines
Deal found 3/30$973
This FlightHub deal was found by Cheapflights users on 3/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1712:00 pmORD - SIN
1 stop30h 30mAir India
Wed 4/238:30 pmSIN - ORD
1 stop23h 55mAir India
Deal found 3/30$988
This Orbitz deal was found by Cheapflights users on 3/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/241:55 pmORD - SIN
2 stops32h 35mMultiple Airlines
Sun 5/119:10 pmSIN - ORD
1 stop24h 35mMultiple Airlines
Deal found 3/30$990
This oojo deal was found by Cheapflights users on 3/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/151:05 amORD - SIN
1 stop27h 25mJapan Airlines
Tue 9/308:05 amSIN - ORD
1 stop20h 40mJapan Airlines
Deal found 3/30$1,073
This oojo deal was found by Cheapflights users on 3/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1712:30 amORD - SIN
1 stop24h 20mEVA Air
Tue 9/301:10 pmSIN - ORD
1 stop20h 35mEVA Air
Deal found 3/30$1,082
This Cheapflightsfares deal was found by Cheapflights users on 3/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:15 amORD - SIN
2 stops28h 30mANA
Wed 10/1510:10 pmSIN - ORD
1 stop23h 30mANA
Deal found 3/30$1,088
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Wed 5/147:00 amSTL - SIN
1 stop22h 25mUnited Airlines
Wed 5/219:00 amSIN - STL
1 stop20h 52mUnited Airlines
Deal found 3/30$1,093
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Wed 5/146:30 amORD - SIN
1 stop22h 55mUnited Airlines
Wed 5/218:40 pmSIN - ORD
2 stops28h 17mUnited Airlines
Deal found 3/30$1,097
This Delta deal was found by Cheapflights users on 3/31. 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.
Tue 9/166:50 pmMDW - SIN
2 stops39h 50mDelta
Sun 9/2110:30 pmSIN - MDW
2 stops27h 02mDelta
Deal found 3/31$1,106
This Delta deal was found by Cheapflights users on 3/30. 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.
Tue 5/67:50 amORD - SIN
2 stops32h 10mDelta
Mon 5/121:10 amSIN - ORD
2 stops35h 49mDelta
Deal found 3/30$1,106

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 March 31, 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 5/13

8:40 am-7:05 am

2 stops33h 25m

Singapore Changi

Tue 5/20

9:10 am-2:43 pm

1 stop42h 33m

$954

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Wed 5/14

11:25 am-5:55 pm

1 stop41h 30m

Singapore Changi

Wed 5/21

11:10 pm-9:40 am

1 stop23h 30m

$973

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Thu 4/17

12:00 pm-7:30 am

1 stop30h 30m

Singapore Changi

Wed 4/23

8:30 pm-7:25 am

1 stop23h 55m

$988

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Thu 4/24

1:55 pm-11:30 am

2 stops32h 35m

Singapore Changi

Sun 5/11

9:10 pm-8:45 am

1 stop24h 35m

$990

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Thu 4/17

4:00 pm-5:30 am

1 stop24h 30m

Singapore Changi

Tue 4/22

1:50 am-2:25 pm

1 stop25h 35m

$1,016

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Mon 9/15

1:05 am-5:30 pm

1 stop27h 25m

Singapore Changi

Tue 9/30

8:05 am-3:45 pm

1 stop20h 40m

$1,073

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Wed 9/17

12:30 am-1:50 pm

1 stop24h 20m

Singapore Changi

Tue 9/30

1:10 pm-8:45 pm

1 stop20h 35m

$1,082

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Wed 9/17

7:10 am-6:40 am

2 stops34h 30m

Singapore Changi

Wed 10/1

10:10 pm-8:40 am

1 stop23h 30m

$1,085

St. LouisSingapore

STL - SIN

STLSIN

Lambert-St Louis

Wed 5/14

7:00 am-6:25 pm

1 stop22h 25m

Singapore Changi

Wed 5/21

9:00 am-4:52 pm

1 stop20h 52m

$1,093

ChicagoSingapore

ORD - SIN

ORDSIN

Chicago O'Hare Intl

Wed 5/14

6:30 am-6:25 pm

1 stop22h 55m

Singapore Changi

Wed 5/21

8:40 pm-11:57 am

2 stops28h 17m

$1,097

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 49 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 March 31, 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 March 31, 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
1,170 reviews

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
EVA Air
8.4
Very good
1,170 reviews
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Korean Air
8.4
Very good
1,051 reviews
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Japan Airlines
8.3
Very good
1,440 reviews
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
ANA
8.3
Very good
831 reviews
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Emirates
8.0
Very good
3,192 reviews
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

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 $400 on Air India. Other airlines that offer cheap prices include Turkish Airlines from $594 and Japan Airlines from $601 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$739Average$937FlexibilityNo cancel feeOn-time77%
Japan AirlinesCheapest$741Average$845FlexibilityNo cancel feeOn-time79%
Cathay PacificCheapest$838Average$1,006FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$885Average$1,422FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$895Average$1,284FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$970Average$1,364FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,080Average$1,344FlexibilityNo cancel feeOn-time74%
ANACheapest$1,135Average$1,730FlexibilityNo cancel feeOn-time80%
Qatar AirwaysCheapest$1,189Average$1,248FlexibilityNo cancel feeOn-time68%
FinnairCheapest$1,203Average$1,349FlexibilityNo cancel feeOn-time76%
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