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₹ 59,780+ 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 18/10. Fares are subject to change and may not be available on all flights or dates of travel.
— ORD
19 Aug — 26 Aug1
1 adult
1 adult, Economy, 0 bags

Flights to Illinois in 2026

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 20 July 2026.

Tue 17/1103:20
DEL
-
STL
2 stops24h 53m
British Airways
Wed 10/314:00
STL
-
DEL
2 stops23h 45m
British Airways
Deal found 16/7₹ 91,695
Thu 27/815:55
DEL
-
ORD
1 stop34h 15m
Etihad Airways
Sat 19/914:00
ORD
-
DEL
1 stop18h 50m
Etihad Airways
Deal found 20/7₹ 93,623
Sun 13/1204:25
DEL
-
ORD
1 stop39h 00m
Etihad Airways
Tue 12/120:20
ORD
-
DEL
1 stop23h 40m
Etihad Airways
Deal found 18/7₹ 93,720
Fri 11/1208:55
DEL
-
ORD
1 stop41h 35m
Etihad Airways
Sun 10/113:10
ORD
-
DEL
1 stop26h 20m
Etihad Airways
Deal found 16/7₹ 93,816
Tue 8/923:35
DEL
-
ORD
1 stop20h 39m
United Airlines
Sun 7/311:15
ORD
-
DEL
2 stops23h 05m
United Airlines
Deal found 15/7₹ 93,913
Tue 6/1023:35
DEL
-
ORD
1 stop23h 49m
United Airlines
Thu 22/1021:35
ORD
-
DEL
1 stop37h 25m
United Airlines
Deal found 17/7₹ 94,009
Tue 8/923:35
DEL
-
ORD
2 stops26h 11m
United Airlines
Sat 10/1021:35
ORD
-
DEL
1 stop37h 25m
United Airlines
Deal found 16/7₹ 94,105
Tue 8/923:35
DEL
-
ORD
2 stops27h 55m
United Airlines
Fri 29/106:00
ORD
-
DEL
2 stops28h 20m
United Airlines
Deal found 18/7₹ 94,202
Wed 2/921:15
DEL
-
ORD
1 stop28h 55m
Etihad Airways
Wed 30/921:10
ORD
-
DEL
1 stop35h 40m
Etihad Airways
Deal found 15/7₹ 94,298
Tue 25/804:50
DEL
-
ORD
1 stop21h 20m
Etihad Airways
Thu 17/921:10
ORD
-
DEL
1 stop24h 15m
Etihad Airways
Deal found 18/7₹ 94,395
Wed 16/901:35
DEL
-
ORD
1 stop27h 10m
British Airways
Sun 27/917:00
ORD
-
DEL
1 stop26h 30m
British Airways
Deal found 19/7₹ 94,588
Tue 28/703:55
DEL
-
ORD
1 stop21h 05m
KLM
Wed 2/918:25
ORD
-
DEL
2 stops21h 00m
KLM
Deal found 16/7₹ 94,684

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 20 July 2026
Explore Illinois
Flights to Chicago
Flights to Moline
Flights to Peoria
Flights to St. Louis
Flights to Decatur

Find flight deals to Illinois

Find the latest flights to Illinois in 2026, 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 20 July 2026.

Return from

₹ 93,623

One-way from

₹ 59,780

Popular in

August

Cheapest in

October

Average price

₹ 100,566

Good round-trip deal

₹ 119,874 or less

Good one-way deal

₹ 493,217 or less
Etihad Airways
  • Etihad Airways
  • 27/8-19/9
  • 2 total stops
  • 53h 05m total
  • New Delhi to Chicago
Search Deals
Delta
  • Delta
  • 18/10
  • 2 total stops
  • 39h 38m total
  • New Delhi to Illinois
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (₹ 5,825 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (₹ 1,947 potential savings vs. average return price).
Search Deals
Average for return flights in July 2026
Search Deals
Price to beat on a round-trip flight from New Delhi Indira Gandhi Intl to Illinois.
Search Deals
Price to beat on a one-way flight from New Delhi Indira Gandhi Intl to Illinois.
Search Deals

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 20 July 2026.
Use the filters below to find and compare flights to Illinois that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

New DelhiChicago

DEL - MDW

DELMDW

New Delhi Indira Gandhi Intl

Thu 10/12

05:00-18:37

2 stops25h 07m

Chicago Midway

Sat 9/1

13:00-02:35

2 stops26h 05m

₹ 95,359

New DelhiChicago

DEL - ORD

DELORD

New Delhi Indira Gandhi Intl

Fri 9/10

04:50-08:35

1 stop38h 15m

Chicago O'Hare Intl

Sat 28/11

20:20-19:20

1 stop35h 30m

₹ 98,734

New DelhiChicago

DEL - ORD

DELORD

New Delhi Indira Gandhi Intl

Fri 11/9

23:35-09:44

1 stop20h 39m

Chicago O'Hare Intl

Thu 15/10

21:35-21:30

1 stop37h 25m

₹ 98,830

New DelhiChicago

DEL - ORD

DELORD

New Delhi Indira Gandhi Intl

Mon 17/8

23:35-16:52

2 stops27h 47m

Chicago O'Hare Intl

Tue 25/8

12:16-21:30

1 stop22h 44m

₹ 98,830

New DelhiChicago

DEL - ORD

DELORD

New Delhi Indira Gandhi Intl

Sat 12/9

21:15-08:35

1 stop21h 50m

Chicago O'Hare Intl

Sat 26/9

21:10-07:55

1 stop24h 15m

₹ 98,926

New DelhiSt. Louis

DEL - STL

DELSTL

New Delhi Indira Gandhi Intl

Sun 15/11

07:50-19:30

2 stops47h 10m

Lambert-St Louis

Tue 9/3

11:47-06:05

2 stops30h 48m

₹ 100,180

New DelhiSt. Louis

DEL - STL

DELSTL

New Delhi Indira Gandhi Intl

Sat 21/11

07:50-19:30

2 stops47h 10m

Lambert-St Louis

Wed 10/3

11:47-06:05

2 stops30h 48m

₹ 100,180

New DelhiSt. Louis

DEL - STL

DELSTL

New Delhi Indira Gandhi Intl

Tue 17/11

07:50-19:30

2 stops47h 10m

Lambert-St Louis

Sun 7/3

11:47-06:05

2 stops30h 48m

₹ 100,180

New DelhiSt. Louis

DEL - STL

DELSTL

New Delhi Indira Gandhi Intl

Sat 21/11

07:50-19:30

2 stops47h 10m

Lambert-St Louis

Mon 8/3

11:47-06:05

2 stops30h 48m

₹ 100,180

New DelhiChicago

DEL - ORD

DELORD

New Delhi Indira Gandhi Intl

Tue 8/9

16:00-16:10

2 stops58h 40m

Chicago O'Hare Intl

Fri 9/10

20:00-08:05

2 stops49h 35m

₹ 100,662

Flights are sorted by cheapest return flights first.

Deals found on 15/7

Showing 1-10 of 31 resultsSorted by cheapest first
1
2
3
4

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 26 hours 17 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 Etihad Airways, Finnair and Air India.

Etihad Airways
Etihad Airways
From ₹ 43,392
Emirates
Emirates
From ₹ 88,304
British Airways
British Airways
From ₹ 75,837
Air India
Air India
From ₹ 15,087

What are the cheapest airlines that fly to Illinois?

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

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).

When is the best time to book a flight to Illinois?

The price you pay for your flight to Illinois may vary depending on when you book. For the best chance of a lower fare, look to book 60 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 20 July 2026.
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
1,422 reviews
Check prices

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Finnair
7.6
Good
1,422 reviews
Finnair
7.6
Good
1,422 reviews
Check prices

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
SWISS
7.5
Good
2,010 reviews
Finnair
7.6
Good
1,422 reviews
Check prices

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Etihad Airways
7.3
Good
1,481 reviews
Finnair
7.6
Good
1,422 reviews
Check prices

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
British Airways
6.7
Okay
8,126 reviews
Finnair
7.6
Good
1,422 reviews
Check prices

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Air India
5.5
Fair
2,955 reviews
Finnair
7.6
Good
1,422 reviews
Check prices

Food

6.7

Boarding

7.7

Comfort

7.4

Entertainment

6.9

Crew

8.2

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.

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, Delta is rated the highest out of the airlines that fly to Illinois.

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

    Chicago Midway is currently the cheapest airport to fly to in Illinois. One-way flights to Chicago Midway typically cost ₹ 3,963, while return flights cost around ₹ 14,988.

  • How much is a return flight to Illinois?

    A return flight to Illinois will typically cost around ₹ 23,726, however they can be found for as little as ₹ 14,988.

  • Where does the fastest flight to Illinois depart from?

    For those looking to save time traveling to Illinois, Ahmedabad offers the quickest one-way flight (20 hours 30 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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