S$ 707+ Cheap flights 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 18-3. Fares are subject to change and may not be available on all flights or dates of travel.
Flights to Illinois in 2025
Find the latest flights to Illinois in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 200,618 searches and data was last updated on 17 January 2025.
Find flight deals to Illinois
Cheapest flights to IllinoisExplore the most affordable flight options available to Illinois. Find the lowest fares based on data from user searches, with prices last updated on 17 January 2025.
Explore the most affordable flight options available to Illinois. Find the lowest fares based on data from user searches, with prices last updated on 17 January 2025.
Find flights to Illinois within your budget
Locate flights to Illinois that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 200,618 searches and data was last updated on 17 January 2025.
Fly from
Route
Depart
Return
Price
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Mon 3-3
20:15-13:00
1 stop30h 45m
Chicago O'Hare Intl
Mon 10-3
15:40-05:40
1 stop25h 00m
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Thu 6-2
22:30-08:40
1 stop24h 10m
Chicago O'Hare Intl
Wed 19-2
11:25-20:25
1 stop43h 00m
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Sun 2-3
10:25-10:10
1 stop37h 45m
Chicago O'Hare Intl
Sun 9-3
12:55-17:35
1 stop39h 40m
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Tue 24-6
08:45-05:04
1 stop33h 19m
Chicago O'Hare Intl
Wed 23-7
06:00-18:45
1 stop23h 45m
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Fri 21-2
06:40-23:18
3 stops30h 38m
Chicago O'Hare Intl
Fri 28-2
11:35-11:55
2 stops34h 20m
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Wed 12-2
01:30-18:25
2 stops30h 55m
Chicago O'Hare Intl
Thu 20-2
18:38-00:10
2 stops39h 32m
SingaporeChicago
SIN - MDW
SINMDW
Singapore Changi
Thu 6-2
11:00-22:20
2 stops25h 20m
Chicago Midway
Wed 19-2
17:05-20:25
2 stops37h 20m
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Thu 6-2
11:00-21:58
2 stops24h 58m
Chicago O'Hare Intl
Wed 19-2
07:00-00:10
2 stops27h 10m
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Thu 6-2
09:15-16:27
1 stop21h 12m
Chicago O'Hare Intl
Wed 19-2
19:00-19:05
1 stop34h 05m
SingaporeChicago
SIN - ORD
SINORD
Singapore Changi
Thu 6-2
10:45-05:54
2 stops33h 09m
Chicago O'Hare Intl
Wed 19-2
10:30-00:55
1 stop24h 25m
Best time to book a flight to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois with our price prediction graph.
Travel insights for flights to Illinois
Get recent, data-driven insights about flights to Illinois including ideal travel times, pricing trends, and more.
How long is the flight to Illinois?
On average, a flight from Singapore to Illinois takes 22 hours 50 minutes. Flights to Illinois from other popular cities in Singapore will vary in length. Below are a few examples of popular routes and their flight times.
What are the most popular airlines that fly to Illinois?
The most popular airlines flying from Singapore to Illinois are United Airlines, EVA Air and Japan Airlines.
What are the cheapest airlines that fly to Illinois?
The cheapest airlines flying from Singapore to Illinois are Turkish Airlines, United Airlines and Cathay Pacific.
Rainfall in Illinois by month
Plan your trip to Illinois by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 mm per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.
Temperature in Illinois by month
Plan your trip to Illinois by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).
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 17 January 2025.
Read reviews from past customers who have flown Delta and KLM to Illinois. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Food
Overall
Comfort
Crew
Entertainment
Reviews
Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.
Boarding
Food
Overall
Comfort
Crew
Entertainment
Reviews
Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.
Boarding
Food
Overall
Comfort
Crew
Entertainment
Reviews
Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.
Boarding
Food
Overall
Comfort
Crew
Entertainment
Reviews
Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.