$497 Find Cheap Flights from Singapore to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Singapore to Illinois departing on 9/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Singapore to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Singapore to Illinois, as well as popular online travel agencies
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Cheap Flights from Singapore to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Peoria
Peoria2 stops$1,134
Springfield
Springfield2 stops$1,212
Peoria
Peoria2 stops$1,134
Springfield
Springfield2 stops$1,212

Book Cheap Singapore to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Singapore to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Singapore to Illinois

Thu, Sep 18 - Mon, Sep 22
ANA Logo
10:10 pm - 8:40 amSIN-ORD
23h 30m1 stop
ANA Logo
11:50 am - 12:45 amORD-SIN
23h 55m1 stop
$830ANA
Find Deal
Thu, Nov 13 - Sun, Nov 30
Air Canada Logo
9:00 pm - 2:41 pmSIN-ORD
31h 41m2 stops
Air Canada Logo
1:10 pm - 7:00 amORD-SIN
27h 50m1 stop
$844Air Canada
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Fri, Sep 12 - Tue, Sep 30
 Logo
8:00 pm - 6:14 pmSIN-ORD
35h 14m2 stops
 Logo
7:09 pm - 1:20 pmORD-SIN
29h 11m2 stops
Thu, Sep 11 - Tue, Sep 30
 Logo
12:20 am - 6:14 pmSIN-ORD
30h 54m2 stops
 Logo
7:09 pm - 6:55 pmORD-SIN
34h 46m2 stops
Sun, Oct 26 - Thu, Nov 13
Korean Air Logo
1:35 am - 9:30 amSIN-ORD
20h 55m1 stop
Korean Air Logo
11:15 am - 12:10 amORD-SIN
22h 55m1 stop
$937Korean Air
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Mon, Sep 15 - Fri, Sep 19
Korean Air Logo
7:30 am - 9:30 amSIN-ORD
39h 00m1 stop
Korean Air Logo
12:10 pm - 11:40 pmORD-SIN
22h 30m1 stop
$943Korean Air
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Sun, Oct 12 - Thu, Oct 23
United Airlines Logo
8:45 am - 9:24 pmSIN-ORD
25h 39m1 stop
United Airlines Logo
6:32 pm - 6:15 amORD-SIN
22h 43m1 stop
$956United Airlines
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Sat, Sep 27 - Tue, Oct 7
United Airlines Logo
8:45 am - 8:07 pmSIN-ORD
24h 22m1 stop
United Airlines Logo
4:25 pm - 6:15 amORD-SIN
24h 50m1 stop
$959United Airlines
Find Deal
Wed, Sep 17 - Mon, Sep 22
Delta Logo
1:10 am - 6:35 pmSIN-MDW
30h 25m2 stops
Delta Logo
6:30 pm - 11:40 pmMDW-SIN
40h 10m2 stops
$977Delta
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Thu, Oct 23 - Wed, Oct 29
Delta Logo
7:30 am - 10:14 pmSIN-MDW
27h 44m2 stops
Delta Logo
9:35 am - 12:10 amMDW-SIN
25h 35m2 stops
$1,089Delta
Find Deal
Booking Insights

KAYAK's insights & trends for Singapore to Illinois flights

Get data-powered insights and trends into flights from Singapore to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Singapore to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Singapore to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Singapore to Illinois is October, when tickets cost $906 (return) on average. On the other hand, the most expensive months are January and December, when the average cost of round-trip tickets is $1,446 and $1,207 respectively.

What’s the cheapest day of the week to fly from Singapore to Illinois?

The average price of all round-trip flights from Singapore to Illinois clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Singapore to Illinois, look for departures on Mondays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Illinois, Monday is the cheapest day to fly and Friday is the most expensive.

How far in advance should I book a flight from Singapore to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Singapore to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Singapore to Illinois, you should book around 2 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$497
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Singapore to Chicago

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Singapore to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Singapore to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Singapore to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Singapore to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Singapore to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Singapore to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Singapore to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Singapore to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally in the afternoon, when round-trip flights cost $1,166 on average. The most expensive time of day to fly to Illinois is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,286.

Reviews of the top 3 airlines serving from Singapore to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Singapore to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Singapore to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
EVA AirOverall score based on 1234 reviews
8.6Crew
8.0Entertainment
8.1Food
8.3Comfort
8.4Boarding
Airline reviews

Staff show very stress with delayed flight more than passenger.

4.0 OkayTommy, Aug 2025TPE - SGN
Read more EVA Air reviews

Staff show very stress with delayed flight more than passenger.

Awful had to ask for a supervisor to sit with my flight companion even t booked the tickets together weeks before

EVA airlines was excellent: on time or early, safe, courteous crew. Highly recommended.

EVA! What is going on with your food!?!? Pre pandemic I used to go to Taiwan at least twice a year and always flew EVA — the food was consistently tasty for airplane food. Post pandemic, it’s not great at all. Step it up!

I have never heard of EVA air before but I am so happy my wife and I were able to flight on their planes twice. Everything on these flights just felt better than their competitors. As someone with longer legs any bit of extra leg spaces is appreciated. The different options for food and drinks were also a plus. They were extra careful to make sure my wife's eating restrictions were taken care for. They had a before take off and landing announcements on the built in tablets for each seat and it gave out information that was very helpful. Such as what and how to declare your items in the specific country you landed in, any odd items that may be illegal to bring it (and even the reasoning why) and any other information you might need to make your post flight experience better. Oh and the seats were more comfortable, had more ability to lean and the headrest was much better for flight sleeping. The only downside was there were "forced" ads on the tablet at take off for maybe 5-10 minutes but honestly, this flight was the cheapest option and had all the benefits listed above that is such an easy trade off. Im keeping an eye out for EVA air going forward.

Aircraft was late getting to the gate - probably due to weather. We left the gate one hour late and had to wait another hour since we lost our slot in the takeoff queue. Our box was very wet and was falling apart when we got to Clark. It appears that luggage was exposed to weather in TPE while waiting to be loaded. Crew, however, handled the delay well and was able to provide planned service.

First time traveling with EVA.. great experience in economy class... Personnel very friendly..

Sub sandwhich for a snack through mid flight and giving a bottle water was a good idea

seats are pitched well. you don't feel too tight.

For the price, it was better than other airlines; quality of food and service was very good.

I was only given 2 meals, and my screen showed that there were 3 meals. Second meal was 1-2 hours late according to the screen.

Just want to do a little more clean up so does not smell like urine.

Check in process at the kiosk, crew in flight and overall comfort was good. Food selection could have been better. Flight from Hong Kong to Los Angeles did not have any vegetarian main course option, it was either sea food or chicken. Being a vegetarian I could only eat yogurt and fruit. Most international flights have one vegetarian main course dish which I found missing in Cathay Pacific menu.

Cabin crew is very helpful and nice, it is another level of service compared to Air Canada

Entertainment for kids was good. Good was terrible, needs lots of work.

As before, my only problem was not being able to download my boarding passes prior to arrival at the airport. Everything else was perfect.

Better. I took an aisle seat this time. Although the overheard compartment above the seat ahead of me kept opening up during flight.

If I had blood clots, that window seat would've killed me for certain.

They ran out of food and were offering random food to passengers.

Short staffs, I ask stewardess to bring me cognac twice during dinner but they didn't bring it!

My flight was delayed about 1 1/2 hours in Chicago, but other then that it was a good flight.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

Inoperable monitor left no entert for 9 hours. Crew was not helpful Food was awful.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Overall it was good. I missed my connection but I was put on another flight.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

I liked that the flight was nonstop from ORD to CIU for $200 round trip.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

All flight attendants could benefit by taking an international flight on Qantas Airline. Qantas attendants are much more hospitable in every way. Much superior than and attendants on any US airline.

Everything you need to know for your flight from Singapore to Illinois

Information on your arrival and departure airports

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