$461 Find Cheap Flights from Singapore to Illinois

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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 for flights to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Illinois, as well as popular online travel agencies
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KAYAK's insights & trends for flights to Illinois

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

What is the cheapest day to fly to Illinois?

The average price of all flights from Singapore to Illinois clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Illinois is Sunday where round-trip tickets can be as cheap as $1,190. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $1,639 on average.

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 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 February, when tickets cost $975 (return) on average. On the other hand, the most expensive months are January and May, when the average cost of round-trip tickets is $1,759 and $1,509 respectively.

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

The average price for all round-trip flights from Singapore to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
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.

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 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 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low season

January

High season

June

Cheapest flight

$461
Best time to beat the crowds but there is an average 50% increase in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Singapore to Chicago

FAQs for booking flights from Singapore to Illinois

  • 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.

See more FAQs

Top 3 airlines serving from Singapore to Illinois

 
See real verified KAYAK customer reviews for airlines flying to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Singapore to Illinois. 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 1176 reviews
8.4Boarding
8.3Comfort
8.0Entertainment
8.6Crew
8.1Food
Airline reviews

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

8.0 ExcellentAnonymous, Mar 2025TPE - IAH
Read more EVA Air reviews

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.

Movie selection was not as good as recent flights I've taken (EVA and other airlines).

Great but I am not sure why I was placed in zone 4 for boarding despite being an Infinity Member??? Can you explain online. Thanks

I was sleep when they brought the food. They had put a note on my seat. There was no food when I asked for food later. There was just one main meal served in this 14 hours flight. They offered me sandwich with ham which I don’t eat since I am pescatarian. Long story short I had to wait to get to TPE to get something to eat. I am extremely disappointed from the service. I have been flying EVA since I was 1 year old. Perhaps no more EVA for me. Seems EVA glorious day is long gone

Great service. Was there a food option? I was given food (I could have ordered ahead of time?) but had no choice. I like choice.

friendly and professional cabin staff... seems cold and a bit aloof...

Except for crying babies all was ok although the movie selection wasn't the best.

The staff was marvelous. The entertainment options were terrible, old or 2nd rate movies. I was unable to entertain myself for 18 hours-it made it seem even longer. Note: I thought about upgrading but your information about what was included was unclear. Are the seats bigger? Are there current moves? What kind of food do you get? Would the upgrade compare to Delta? Just saying the upgrade is better didn’t convince me and I regret not flying Delta.

I've stomach problems after 2 hours of flight, Iris, the flight purser not only did her best to make me feel comfortable, she went above and beyond providing pain relievers medicines and ointment. She look and found a doctor passenger on the flight to provide advise. She even report on ground staffs about my condition and provide wheelchair upon arrival. Kudos to her and Cathay Pacific!

Worst experience I have ever had with any airline in over 25 years.

Very noisy and careless crew on this overnight flight. They should understand customers want to sleep

The flight was delayed for 30 mins. The overall experience was good.

Highly impressive. On time. Smooth and fast boarding and disembarkment. Really great service

The economy seats are much indeed roomier. Meals needs improvement.

It was okay overall but the food was very, very bad.

Horrible. No good food. Baggage missed to onboard and came after a day. No support to compensate the delay. Customer care cannot see the status of the complaint. No reply of the email.

Food was hood for airline food with good poftion and variety in meals. Frequency of beverage service was very low and amount of soda with meals was inadequate.

bad… no veg food was provided eventhough i pre ordered special meal

Overall poor for me I paid extra for seats with leg room and my regional flights exit row seats have less leg room then the others that's money that could have been saved and on my final flight home the flights air was not operating it was unbearably hot in the cabin I will be contacting United and filing a DOT complaint

It was my first time with United Airlines and I would say it was very good experience and best of all the flights were on time. Will definitely fly with United Airlines next time.

Very modern plane. Good seat spacing. Meals were good. Screens had tons of movies and worked

There's just no way to sit fully upright and comfortably in these seats. There needs to be 2 more inches of room, and that's not something that only one person on the flight needs - the whole flight needs 2 more inches of room. If that means you sell 6 less seats, so be it. It's too close for anyone. Forcing people to pay for "premium" economy just to get "barely enough space to breathe" isn't really an answer to that.

The crew were very nice. The Chocolate is good and v there’s no entertainment. Thanks

The crew were very nice. I would have appreciated a pillow for comfort. I had a special meal that was sloppy, but the salad was great. Thanks

The plane was in Moline all night. Consequently, we assumed an on time departure at 8:15am. Unfortunately, and as is the normal case with United in Moline, we departed 2.5 hours late. When the crew came, it was discovered that there was very little heat in the plane. Seems this should have been checked hours before the crew arrived. Then when we boarded and the plane was to be de-iced, the United de-icing truck was not working! We awaited the American Airlines truck. All of this caused us to miss our connection in Chicago. My suggestion is never take United Airlines flight from Moline. We have been disappointed 80% of the time and have vowed to not take United again from Moline.

Flight was delayed two hours. No snacks and no tv screens. My bag got stuck in Chicago

The aircrew was solid, the flight was chill, I had no issues. The gate agent was not the best. I was trying to use a military bag upgrade to move my bag from under the seat to the overhead bins and he told me there’s no overhead bins on the plane, argued with me why booking put a military member in basic economy (I don’t really understand this) and made it an issue to even try to help me stating I’d have to call reservations to get a bag upgrade. When every other agent with United can add it at the gate, this man couldn’t be bothered.

lots of delays the crew were unclear about where to pick up my carry-on, which they took from me to check in on the plane.

Book cheap flights from Singapore to Illinois

Recent round-trip flight deals

 
These are the cheapest round-trip flights to Illinois found on KAYAK in the last 72 hours.
6/24Tue
1 stopAir Canada
42h 39mSIN-ORD
7/23Wed
2 stopsAir Canada
46h 02mORD-SIN
$859
6/24Tue
1 stopAir Canada
42h 39mSIN-ORD
7/23Wed
2 stopsAir Canada
46h 02mORD-SIN
$913
5/8Thu
1 stopUnited Airlines
21h 08mSIN-ORD
5/17Sat
1 stopUnited Airlines
32h 55mORD-SIN
$938
5/8Thu
1 stopUnited Airlines
27h 46mSIN-ORD
5/12Mon
1 stopUnited Airlines
25h 20mORD-SIN
$942
5/12Mon
2 stops
29h 20mSIN-ORD
5/21Wed
2 stops
27h 36mORD-SIN
$995
5/8Thu
2 stops
34h 36mSIN-ORD
5/17Sat
2 stops
28h 41mORD-SIN
$1,056
6/23Mon
1 stopCathay Pacific
25h 35mSIN-ORD
7/23Wed
1 stopCathay Pacific
24h 30mORD-SIN
$1,071
6/23Mon
1 stopCathay Pacific
25h 35mSIN-ORD
7/23Wed
1 stopCathay Pacific
24h 30mORD-SIN
$1,183
6/24Tue
2 stopsEVA Air
29h 35mSIN-ORD
7/22Tue
1 stopEVA Air
24h 20mORD-SIN
$1,215
5/8Thu
1 stopEVA Air
20h 50mSIN-ORD
5/16Fri
1 stopEVA Air
22h 30mORD-SIN
$1,228

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Illinois found on KAYAK in the last 72 hours.
5/22Thu
3 stops
56h 26mSIN-ORD
$461
5/6Tue
1 stop
27h 51mSIN-ORD
$476
5/21Wed
1 stopCathay Pacific
25h 35mSIN-ORD
$551
5/6Tue
1 stopCathay Pacific
31h 20mSIN-ORD
$558
5/5Mon
1 stopKorean Air
21h 30mSIN-ORD
$622
5/5Mon
1 stopKorean Air
21h 30mSIN-ORD
$627
7/3Thu
1 stopUnited Airlines
41h 15mSIN-ORD
$747
7/4Fri
2 stopsUnited Airlines
34h 52mSIN-ORD
$752
7/7Mon
2 stopsEVA Air
27h 35mSIN-ORD
$854
7/7Mon
2 stopsEVA Air
38h 31mSIN-ORD
$892

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Everything you need to know for your flight to Illinois

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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