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Cheap flights from Singapore to Illinois from S$ 641

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 10-10. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — ORD
11 Sep — 18 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Singapore to Illinois

Enter your travel dates to find the best prices.

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 12 August 2026.

Thu 10-907:00 -
1 stop20h 43m
Thu 24-915:40 -
1 stop24h 35m
Deal found 10-8S$ 978
Tue 3-1108:40 -
1 stop25h 21m
Tue 17-1115:30 -
1 stop25h 30m
Deal found 10-8S$ 986
Thu 10-907:00 -
1 stop20h 43m
Fri 25-915:40 -
1 stop24h 35m
Deal found 12-8S$ 988
Sun 20-907:00 -
1 stop20h 43m
Thu 24-915:40 -
1 stop24h 35m
Deal found 7-8S$ 993
Wed 9-906:15 -
2 stops26h 57m
Thu 24-915:40 -
1 stop24h 35m
Deal found 11-8S$ 1,018
Sat 12-907:00 -
1 stop20h 43m
Sun 27-914:20 -
2 stops25h 55m
Deal found 11-8S$ 1,027
Mon 21-922:00 -
2 stops33h 33m
Mon 28-909:59 -
2 stops24h 56m
Deal found 7-8S$ 1,436
Wed 9-907:30 -
2 stops28h 14m
Thu 24-909:29 -
2 stops30h 31m
Deal found 11-8S$ 1,439
Wed 23-922:00 -
2 stops37h 44m
Wed 30-909:29 -
2 stops44h 46m
Deal found 9-8S$ 1,442
Thu 10-907:30 -
2 stops28h 14m
Thu 24-909:59 -
2 stops30h 01m
Deal found 7-8S$ 1,532
Thu 10-907:30 -
2 stops28h 14m
Fri 25-909:29 -
2 stops25h 26m
Deal found 11-8S$ 1,535
Sun 11-1001:25 -
2 stops27h 54m
Wed 28-1006:04 -
2 stops29h 06m
Deal found 12-8S$ 1,578

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 12 August 2026.

Round-trip from

S$ 978

One-way from

S$ 641

Popular in

August

Cheapest in

September

Average price

S$ 2,627
Air Canada
  • Air Canada
  • 10-9-24-9
  • 2 total stops
  • 45h 18m total
  • Singapore to Illinois
Search Deals
Air Canada
  • Air Canada
  • 10-10
  • 2 total stops
  • 35h 59m total
  • Singapore to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (S$ 302 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (S$ 143 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 200,618 searches. Data last updated 12 August 2026.
Use the filters below to find and compare flights from Singapore to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SingaporeChicago

SIN Singapore Changi - ORD Chicago O'Hare Intl

SINORD

Singapore Changi

Sat 26-9

07:00-14:43

1 stop20h 43m

Chicago O'Hare Intl

Sat 3-10

15:40-05:15

2 stops48h 35m

S$ 1,055

SingaporeChicago

SIN Singapore Changi - ORD Chicago O'Hare Intl

SINORD

Singapore Changi

Sun 13-12

08:40-14:37

1 stop19h 57m

Chicago O'Hare Intl

Sun 3-1

15:30-07:00

1 stop25h 30m

S$ 1,072

SingaporeChicago

SIN Singapore Changi - ORD Chicago O'Hare Intl

SINORD

Singapore Changi

Sun 20-9

07:00-13:05

2 stops43h 05m

Chicago O'Hare Intl

Thu 24-9

08:45-05:15

2 stops31h 30m

S$ 1,141

SingaporeChicago

SIN Singapore Changi - ORD Chicago O'Hare Intl

SINORD

Singapore Changi

Thu 17-9

07:00-14:43

1 stop20h 43m

Chicago O'Hare Intl

Mon 28-9

20:25-09:40

1 stop24h 15m

S$ 1,224

SingaporeChicago

SIN Singapore Changi - ORD Chicago O'Hare Intl

SINORD

Singapore Changi

Sun 20-9

01:45-14:43

2 stops25h 58m

Chicago O'Hare Intl

Mon 28-9

20:25-09:40

1 stop24h 15m

S$ 1,271

SingaporeChicago

SIN Singapore Changi - ORD Chicago O'Hare Intl

SINORD

Singapore Changi

Tue 22-9

08:45-22:59

1 stop27h 14m

Chicago O'Hare Intl

Sat 26-9

21:40-18:35

1 stop31h 55m

S$ 1,421

SingaporeChicago

SIN Singapore Changi - MDW Chicago Midway

SINMDW

Singapore Changi

Mon 21-9

22:00-18:33

2 stops33h 33m

Chicago Midway

Mon 28-9

09:59-23:55

2 stops24h 56m

S$ 1,436

SingaporeChicago

SIN Singapore Changi - MDW Chicago Midway

SINMDW

Singapore Changi

Sun 20-9

22:00-18:33

2 stops33h 33m

Chicago Midway

Thu 24-9

09:59-05:00

2 stops30h 01m

S$ 1,439

SingaporeChicago

SIN Singapore Changi - MDW Chicago Midway

SINMDW

Singapore Changi

Thu 17-9

07:30-22:45

2 stops28h 15m

Chicago Midway

Mon 28-9

09:59-23:55

2 stops24h 56m

S$ 1,439

SingaporeChicago

SIN Singapore Changi - MDW Chicago Midway

SINMDW

Singapore Changi

Tue 15-9

07:30-22:44

2 stops28h 14m

Chicago Midway

Sat 26-9

09:59-05:00

2 stops30h 01m

S$ 1,442

Flights are sorted by cheapest return flights first.

Deals found on 8-8

Showing 1-10 of 34 resultsSorted by cheapest first
1
2
3
4

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 return 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

How much does it cost for a return flight from Singapore to Illinois?

Airfare is below average for this route at the moment.
Singapore to Illinois flights typically cost between S$ 1,500 and S$ 1,796 in September.
The cheapest return price found within the last 5 days was S$ 978 on Air Canada (10 Sept–24 Sept).

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 12 August 2026.
See what other customers who have flown with EVA Air,Korean Air, andJapan Airlines from Singapore to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.5
Very Good
1,515 reviews
Check prices

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.5

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2026

TPE - SEA

Alaska is a really nice airline, but falls short when compared to overseas airlines that offer service without entitled attitudes. Not of a commentary on Americans as a while but Alaska could step up it's game by learning from other cultures.
EVA Air
8.5
Very Good
1,515 reviews
EVA Air
8.5
Very Good
1,515 reviews
Check prices

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.5

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2026

TPE - SEA

Alaska is a really nice airline, but falls short when compared to overseas airlines that offer service without entitled attitudes. Not of a commentary on Americans as a while but Alaska could step up it's game by learning from other cultures.
Korean Air
8.4
Very Good
1,221 reviews
EVA Air
8.5
Very Good
1,515 reviews
Check prices

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.5

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2026

TPE - SEA

Alaska is a really nice airline, but falls short when compared to overseas airlines that offer service without entitled attitudes. Not of a commentary on Americans as a while but Alaska could step up it's game by learning from other cultures.
Japan Airlines
8.3
Very Good
1,898 reviews
EVA Air
8.5
Very Good
1,515 reviews
Check prices

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.5

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2026

TPE - SEA

Alaska is a really nice airline, but falls short when compared to overseas airlines that offer service without entitled attitudes. Not of a commentary on Americans as a while but Alaska could step up it's game by learning from other cultures.
United Airlines
7.4
Good
10,110 reviews
EVA Air
8.5
Very Good
1,515 reviews
Check prices

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.5

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2026

TPE - SEA

Alaska is a really nice airline, but falls short when compared to overseas airlines that offer service without entitled attitudes. Not of a commentary on Americans as a while but Alaska could step up it's game by learning from other cultures.

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.

  • What airport do you fly from for flights from Singapore to Illinois?

    Singapore Changi (SIN) is the airport you will fly out of if you book a flight from Singapore to Illinois. It is only a 16.9 km journey to Changi (SIN) from Singapore’s city centre.

  • How long is the flight from Singapore to Illinois?

    Departing from Singapore to Illinois will take you 20h 43m. Airlines will cover a distance of 15039 km. This flight may include one or multiple stops.

  • 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 holiday 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.

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 2 airlines flying from Singapore to Illinois

Discover the top 2 airlines 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 200,618 searches. Data last updated 12 August 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestS$ 1,214AverageS$ 1,523FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
EVA AirCheapestS$ 1,327AverageS$ 1,701FlexibilityNo cancel feeOn-time74%
Search EVA Air flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Singapore to Illinois?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Singapore to Illinois. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Singapore to Illinois?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Singapore to Illinois.

Can Cheapflights find flights from Singapore to Illinois with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Singapore to Illinois flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Singapore to Illinois become cheaper?

Yes, Cheapflights offers price alerts on Singapore to Illinois flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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