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₹ 34,248+ 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 18/12. Fares are subject to change and may not be available on all flights or dates of travel.
— ORD
10 Jan — 17 Jan1
1 adult
1 adult, Economy, 0 bags

Flights to Illinois in 2025

Enter your travel dates to find the best prices.

Cheapest flights to Illinois
Explore the most affordable flight options available to Illinois. Find the lowest fares based on data from user searches, with prices last updated on 11 December 2025.

Thu 11/1202:15DEL - ORD
1 stop20h 45mAir India
Mon 12/113:30ORD - DEL
Nonstop15h 50mAir India
Deal found 9/12₹ 66,968
Tue 23/1202:15DEL - ORD
1 stop20h 45mAir India
Wed 14/113:30ORD - DEL
Nonstop15h 50mAir India
Deal found 8/12₹ 68,406
Thu 18/1202:15DEL - ORD
Nonstop20h 45mAir India
Sun 1/213:30ORD - DEL
Nonstop15h 50mAir India
Deal found 10/12₹ 69,125
Sat 13/1202:15DEL - ORD
1 stop20h 45mAir India
Sun 8/213:30ORD - DEL
Nonstop15h 50mAir India
Deal found 9/12₹ 69,664
Tue 23/1203:20DEL - ORD
1 stop23h 35mBritish Airways
Wed 11/316:19ORD - DEL
2 stops22h 26mBritish Airways
Deal found 10/12₹ 69,934
Thu 11/1202:15DEL - ORD
1 stop20h 45mAir India
Sun 11/113:30ORD - DEL
Nonstop15h 50mAir India
Deal found 9/12₹ 70,563
Sun 21/1206:45DEL - ORD
1 stop38h 50mMultiple Airlines
Tue 10/218:50ORD - DEL
1 stop26h 05mMultiple Airlines
Deal found 11/12₹ 70,653
Thu 11/1202:15DEL - ORD
1 stop20h 45mAir India
Fri 30/113:30ORD - DEL
Nonstop15h 50mAir India
Deal found 9/12₹ 70,923
Tue 23/1204:00DEL - STL
2 stops46h 59mMultiple Airlines
Wed 11/316:05STL - DEL
2 stops25h 20mMultiple Airlines
Deal found 10/12₹ 84,496
Fri 26/1203:20DEL - MDW
2 stops25h 36mMultiple Airlines
Mon 19/118:14MDW - DEL
2 stops22h 31mMultiple Airlines
Deal found 9/12₹ 98,159
Sun 14/1203:20DEL - MDW
2 stops24h 44mKLM
Tue 20/118:14MDW - DEL
2 stops21h 46mKLM
Deal found 10/12₹ 99,597
Sun 21/1201:30DEL - MDW
2 stops32h 22mDelta
Wed 7/118:14MDW - DEL
2 stops22h 31mDelta
Deal found 9/12₹ 105,260

Find flights to Illinois

Browse one-way and return flights deals to Illinois on Cheapflights. Flight deals are based on user searches and were last updated on 11 December 2025
Explore Illinois
Flights to Chicago
Flights to Moline
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Flights to Decatur

Find flight deals to Illinois

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 454,620 searches and data was last updated on 11 December 2025.

Return from

₹ 66,158

One-way from

₹ 34,248

Popular in

August

Cheapest in

October

Average price

₹ 88,541

Good round-trip deal

₹ 62,306 or less

Good one-way deal

₹ 32,508 or less
Etihad Airways
  • Etihad Airways
  • 17/3-26/3
  • 2 total stops
  • 65h 00m total
  • New Delhi to Chicago
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Air India
  • Air India
  • 18/12
  • Nonstop
  • 20h 45m total
  • New Delhi to Illinois
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (₹ 1,647 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (₹ 1,360 potential savings vs. average return price).
Search Deals
Average for return flights in December 2025
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Price to beat on a round-trip flight from New Delhi Indira Gandhi Intl to Illinois.
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Price to beat on a one-way flight from New Delhi Indira Gandhi Intl to Illinois.
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Cheapflights Fare Finder

 
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 454,620 searches and data was last updated on 11 December 2025.
Use the filters below to find and compare flights to Illinois that are best for you.

Fly from

New Delhi

Route

Depart

Return

Price

New DelhiChicago

DEL - ORD

DELORD

New Delhi Indira Gandhi Intl

Sat 25/4

07:40-17:50

1 stop20h 40m

Chicago O'Hare Intl

Sat 16/5

21:30-05:20

1 stop21h 20m

₹ 67,776

New DelhiChicago

DEL - ORD

DELORD

New Delhi Indira Gandhi Intl

Wed 25/3

16:20-08:35

1 stop26h 45m

Chicago O'Hare Intl

Sun 12/4

14:00-07:50

1 stop31h 20m

₹ 70,473

New DelhiChicago

DEL - ORD

DELORD

New Delhi Indira Gandhi Intl

Thu 26/3

08:55-08:35

1 stop34h 10m

Chicago O'Hare Intl

Sun 12/4

14:00-19:30

1 stop19h 00m

₹ 70,473

New DelhiChicago

DEL - ORD

DELORD

New Delhi Indira Gandhi Intl

Thu 29/1

02:15-11:30

Nonstop20h 45m

Chicago O'Hare Intl

Mon 23/2

13:30-16:50

Nonstop15h 50m

₹ 71,102

New DelhiChicago

DEL - ORD

DELORD

New Delhi Indira Gandhi Intl

Sun 31/5

02:15-20:45

2 stops29h 00m

Chicago O'Hare Intl

Fri 21/8

16:20-01:55

1 stop23h 05m

₹ 72,271

New DelhiChicago

DEL - ORD

DELORD

New Delhi Indira Gandhi Intl

Tue 27/1

03:20-17:45

2 stops25h 55m

Chicago O'Hare Intl

Thu 12/3

18:20-01:10

2 stops20h 20m

₹ 72,990

New DelhiChicago

DEL - ORD

DELORD

New Delhi Indira Gandhi Intl

Tue 23/12

03:20-14:20

1 stop22h 30m

Chicago O'Hare Intl

Tue 10/2

17:20-03:30

2 stops22h 40m

₹ 73,170

New DelhiChicago

DEL - ORD

DELORD

New Delhi Indira Gandhi Intl

Mon 27/4

02:15-21:36

2 stops29h 51m

Chicago O'Hare Intl

Tue 13/10

12:10-23:59

2 stops25h 19m

₹ 74,338

New DelhiChicago

DEL - ORD

DELORD

New Delhi Indira Gandhi Intl

Sat 25/4

02:15-11:10

Nonstop19h 25m

Chicago O'Hare Intl

Sun 30/8

13:10-16:00

Nonstop16h 20m

₹ 74,608

New DelhiChicago

DEL - MDW

DELMDW

New Delhi Indira Gandhi Intl

Tue 27/1

01:30-22:22

2 stops32h 22m

Chicago Midway

Thu 12/3

13:09-01:10

2 stops25h 31m

₹ 81,889

Flights are sorted by cheapest return flights first.

Deals found on 9/12

Showing 1-10 of 31 results
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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.
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 to Illinois

How long is the flight to Illinois?

On average, a flight from New Delhi to Illinois takes 31 hours 42 minutes. Flights to Illinois from other popular cities in India 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 New Delhi to Illinois are Air India, United Airlines and Finnair.

Etihad Airways
Etihad Airways
From ₹ 65,352
Air India
Air India
From ₹ 61,547
British Airways
British Airways
From ₹ 71,981
Lufthansa
Lufthansa
From ₹ 73,891

What are the cheapest airlines that fly to Illinois?

The cheapest airlines flying from New Delhi to Illinois are Delta, Turkish Airlines and Etihad Airways.

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 11 December 2025.
Read reviews from past customers who have flown Finnair, SWISS, andEtihad Airways to the United States. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Boarding

7.6

Food

6.7

Comfort

7.4

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,334 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Boarding

7.6

Food

6.7

Comfort

7.4

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
SWISS
7.5
Good
1,810 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Boarding

7.6

Food

6.7

Comfort

7.4

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Etihad Airways
7.4
Good
1,331 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Boarding

7.6

Food

6.7

Comfort

7.4

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
United Airlines
7.4
Good
9,095 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Boarding

7.6

Food

6.7

Comfort

7.4

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Air India
5.5
Fair
2,947 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Boarding

7.6

Food

6.7

Comfort

7.4

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

FAQs about flying to Illinois

  • Can I find cheaper flights to Illinois if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Illinois on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Illinois?

    Based on reviews from Cheapflights users, Turkish Airlines is rated the highest out of the airlines that fly to Illinois.

  • What is the cheapest airport to fly to in Illinois?

    Chicago O'Hare Intl is currently the cheapest airport to fly to in Illinois. One-way flights to Chicago O'Hare Intl typically cost ₹ 3,892, while return flights cost around ₹ 6,917.

  • How much is a return flight to Illinois?

    A return flight to Illinois will typically cost around ₹ 39,899, however they can be found for as little as ₹ 6,917.

  • Where does the fastest flight to Illinois depart from?

    For those looking to save time traveling to Illinois, New Delhi Indira Gandhi Intl offers the quickest one-way flight (20 hours 40 minutes).

  • Does Chicago O'Hare Intl have rental cars?

    Yes. Those touching down at Chicago O'Hare Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Chicago O'Hare Intl?

    Yes. Chicago O'Hare Intl has hotels nearby for those requiring accommodations. Hilton Chicago O'Hare Airport is the closest property to Chicago O'Hare Intl (0.0 km away from Chicago O'Hare Intl).

See more FAQs

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