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Illinois

$517+ Cheap flights from Singapore to Illinois

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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — ORD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Singapore to Illinois

Cheapest flights from Singapore to Illinois
Explore the most affordable flight options available from Singapore to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Expedia deal was found by Cheapflights users on 1/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/252:20 am
SIN
-
ORD
1 stop19h 15m
Multiple Airlines
Thu 3/53:54 pm
ORD
-
SIN
2 stops27h 41m
Multiple Airlines
Deal found 1/27$939
This United Airlines deal was found by Cheapflights users on 1/26. 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 2/1710:20 pm
SIN
-
ORD
1 stop20h 52m
United Airlines
Wed 2/189:01 am
ORD
-
SIN
1 stop32h 59m
United Airlines
Deal found 1/26$945
This United Airlines deal was found by Cheapflights users on 1/27. 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 2/1010:20 pm
SIN
-
ORD
1 stop22h 05m
United Airlines
Fri 2/206:25 am
ORD
-
SIN
1 stop23h 50m
United Airlines
Deal found 1/27$951
This United Airlines deal was found by Cheapflights users on 1/28. 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 2/1110:20 pm
SIN
-
ORD
1 stop22h 00m
United Airlines
Sat 2/144:20 pm
ORD
-
SIN
1 stop37h 55m
United Airlines
Deal found 1/28$953
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/3010:00 am
SIN
-
ORD
1 stop20h 57m
United Airlines
Thu 2/126:25 am
ORD
-
SIN
1 stop23h 50m
United Airlines
Deal found 1/29$957
This United Airlines deal was found by Cheapflights users on 1/28. 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 3/610:10 am
SIN
-
ORD
1 stop22h 42m
United Airlines
Sat 3/149:15 pm
ORD
-
SIN
1 stop34h 00m
United Airlines
Deal found 1/28$960
This Delta deal was found by Cheapflights users on 1/28. 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 3/410:30 pm
SIN
-
ORD
2 stops39h 26m
Delta
Tue 3/179:50 am
ORD
-
SIN
2 stops25h 20m
Delta
Deal found 1/28$967
This Expedia deal was found by Cheapflights users on 1/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/148:05 am
SIN
-
ORD
2 stops25h 35m
Japan Airlines
Tue 7/281:30 am
ORD
-
SIN
1 stop39h 40m
Japan Airlines
Deal found 1/28$991
This CheapTickets deal was found by Cheapflights users on 1/27. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:50 pm
SIN
-
ORD
2 stops35h 50m
Japan Airlines
Tue 7/288:00 am
ORD
-
SIN
2 stops33h 10m
Japan Airlines
Deal found 1/27$998
This Japan Airlines deal was found by Cheapflights users on 1/28. 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.
Wed 2/410:25 pm
SIN
-
PIA
2 stops32h 07m
Japan Airlines
Sun 2/87:39 am
PIA
-
SIN
2 stops43h 46m
Japan Airlines
Deal found 1/28$1,151
This China Airlines deal was found by Cheapflights users on 1/27. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:00 am
SIN
-
MDW
2 stops35h 10m
Multiple Airlines
Tue 6/305:05 pm
MDW
-
SIN
2 stops30h 30m
Multiple Airlines
Deal found 1/27$1,171
This Delta deal was found by Cheapflights users on 1/27. 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.
Thu 2/2610:40 am
SIN
-
MDW
2 stops36h 26m
Delta
Thu 3/56:00 am
MDW
-
SIN
2 stops33h 00m
Delta
Deal found 1/27$1,230

Find flight deals from Singapore to Illinois

Keep the following information in mind while searching for Singapore to Illinois flight deals. Data was last updated January 29, 2026.

Round-trip from

$939
(Expedia)

One-way from

$517
(EaseMyTrip)

Popular in

January

Cheapest in

September

Average price

$1,242
From Singapore to Illinois
Search Deals
One-way flight from Singapore to Illinois
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Singapore to Illinois 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 January 29, 2026.
Use the filters below to find and compare flights from Singapore to Illinois that are best for you.

Fly from

Singapore

Fly to

Illinois

Route

Depart

Return

Price

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Wed 2/25

2:20 am-7:35 am

1 stop19h 15m

Chicago O'Hare Intl

Thu 3/5

3:54 pm-9:35 am

2 stops27h 41m

$939

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Tue 2/17

10:20 pm-5:12 am

1 stop20h 52m

Chicago O'Hare Intl

Wed 2/18

9:01 am-8:00 am

1 stop32h 59m

$945

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Tue 2/10

10:20 pm-6:25 am

1 stop22h 05m

Chicago O'Hare Intl

Fri 2/20

6:25 am-8:15 pm

1 stop23h 50m

$951

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Wed 4/1

9:00 am-6:43 pm

1 stop22h 43m

Chicago O'Hare Intl

Tue 6/30

8:00 pm-6:35 pm

1 stop33h 35m

$951

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Wed 2/11

10:20 pm-6:20 am

1 stop22h 00m

Chicago O'Hare Intl

Sat 2/14

4:20 pm-8:15 pm

1 stop37h 55m

$953

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Fri 3/13

10:10 am-11:38 pm

1 stop26h 28m

Chicago O'Hare Intl

Sat 3/28

2:26 pm-6:35 pm

1 stop39h 09m

$956

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Wed 6/10

8:45 am-12:59 am

1 stop29h 14m

Chicago O'Hare Intl

Mon 6/15

6:10 am-6:35 pm

1 stop23h 25m

$956

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Fri 3/6

10:10 am-6:52 pm

1 stop22h 42m

Chicago O'Hare Intl

Sat 3/14

9:15 pm-8:15 pm

1 stop34h 00m

$960

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Wed 6/10

3:20 pm-12:06 pm

2 stops33h 46m

Chicago O'Hare Intl

Mon 6/15

6:53 pm-11:55 am

2 stops28h 02m

$1,063

SingaporeChicago

SIN - ORD

SINORD

Singapore Changi

Thu 2/26

10:40 am-9:30 pm

2 stops24h 50m

Chicago O'Hare Intl

Thu 3/5

6:45 am-5:00 am

2 stops32h 15m

$1,075

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 41 results
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Best time to book a flight from Singapore to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Singapore 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 Singapore to Illinois

What is the cheapest month to book a flight from Singapore to Illinois?

Currently, June is the cheapest month in which you can book a flight from Singapore to Illinois (average of $695). Flying from Singapore to Illinois in January is currently the most expensive (average of $1,147). 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.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated January 29, 2026.
Get a feel of what it's like to fly with Cathay Pacific and United Airlines from Singapore to Illinois by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
1,148 reviews

Overall

7.6

Crew

8.1

Comfort

7.6

Boarding

7.9

Entertainment

7.7

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Cathay Pacific
7.6
Good
1,148 reviews
Cathay Pacific
7.6
Good
1,148 reviews

Overall

7.6

Crew

8.1

Comfort

7.6

Boarding

7.9

Entertainment

7.7

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
United Airlines
7.4
Good
9,215 reviews
Cathay Pacific
7.6
Good
1,148 reviews

Overall

7.6

Crew

8.1

Comfort

7.6

Boarding

7.9

Entertainment

7.7

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

Related info for your journey

Find useful and relevant information for your journey from Singapore to Illinois. 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 Singapore to Illinois?

    Airlines like United Airlines, Delta, and American Airlines fly from Singapore to Illinois in about 20h 52m. The time it takes to get you to your destination can typically vary by up to 16h 45m. Airlines will cover a distance of 9345 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Singapore to Illinois one-way?

    One-way options have recently been found by users for as low as $428 on Japan Airlines. Other airlines that offer cheap prices include EVA Air from $442 and United Airlines from $577 one-way.

  • Can I find deals for flights from Singapore to Illinois that include hotel bookings?

    Yes. In addition to deals on Singapore to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Singapore to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Singapore to Illinois.

  • Can I find deals for business class flights from Singapore to Illinois?

    Yes. Cheapflights offers flight deals from Singapore to Illinois 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 Singapore to Illinois?

    Currently, June is the cheapest month in which you can book a flight from Singapore to Illinois (average of $695). Flying from Singapore to Illinois in January is currently the most expensive (average of $1,147). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Singapore to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Singapore to Illinois

Discover the top airline that operate flights from Singapore to Illinois. 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$802Average$1,040FlexibilityNo cancel feeOn-time69%

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