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Cheap flights from Illinois to Patna from ₹ 74,267

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 30/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PAT
11 Jul — 18 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Patna

Enter your travel dates to find the best prices.

Cheapest flights from Illinois to Patna
Explore the most affordable flight options available from Illinois to Patna. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 June 2026.

Fri 11/914:00
ORD
-
PAT
2 stops30h 30m
Multiple Airlines
Sat 26/910:20
PAT
-
ORD
2 stops39h 50m
Multiple Airlines
Deal found 8/6₹ 99,626
Thu 23/720:25
ORD
-
PAT
2 stops29h 35m
Multiple Airlines
Thu 30/713:20
PAT
-
ORD
2 stops36h 50m
Multiple Airlines
Deal found 8/6₹ 102,295
Thu 23/720:25
ORD
-
PAT
2 stops54h 30m
Multiple Airlines
Fri 21/814:00
PAT
-
ORD
2 stops29h 05m
Multiple Airlines
Deal found 9/6₹ 121,648
Wed 24/620:10
ORD
-
PAT
2 stops38h 45m
IndiGo
Sat 11/722:10
PAT
-
ORD
2 stops46h 00m
IndiGo
Deal found 10/6₹ 139,953
Wed 24/611:25
ORD
-
PAT
2 stops47h 40m
IndiGo
Mon 13/722:10
PAT
-
ORD
2 stops46h 00m
IndiGo
Deal found 10/6₹ 140,239
Thu 2/720:10
ORD
-
PAT
2 stops35h 20m
IndiGo
Sat 18/720:55
PAT
-
ORD
2 stops47h 15m
IndiGo
Deal found 10/6₹ 152,823
Tue 23/620:10
ORD
-
PAT
2 stops38h 55m
IndiGo
Wed 8/722:10
PAT
-
ORD
2 stops46h 00m
IndiGo
Deal found 8/6₹ 157,018
Wed 24/620:10
ORD
-
PAT
2 stops38h 45m
Multiple Airlines
Mon 13/719:10
PAT
-
ORD
2 stops49h 00m
Multiple Airlines
Deal found 10/6₹ 158,543
Wed 24/611:25
ORD
-
PAT
2 stops47h 30m
Multiple Airlines
Sat 11/719:10
PAT
-
ORD
2 stops49h 00m
Multiple Airlines
Deal found 8/6₹ 159,306
Wed 24/611:25
ORD
-
PAT
2 stops47h 30m
Multiple Airlines
Tue 14/713:20
PAT
-
ORD
2 stops54h 50m
Multiple Airlines
Deal found 9/6₹ 159,497

Find flight deals from Illinois to Patna

Keep the following information in mind while searching for Illinois to Patna flight deals. Data was last updated 11 June 2026.

Round-trip from

₹ 99,626

One-way from

₹ 74,267
11/9-26/9
  • 11/9-26/9
  • 4 total stops
  • 70h 20m total
  • Illinois to Patna
Search Deals
Air France
  • Air France
  • 30/11
  • 2 total stops
  • 27h 05m total
  • Illinois to Patna
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Illinois to Patna that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 454,620 searches. Data last updated 11 June 2026.
Use the filters below to find and compare flights from Illinois to Patna that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Thu 23/7

20:25-10:30

3 stops27h 35m

Patna

Fri 21/8

15:10-15:40

3 stops59h 00m

₹ 129,847

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 24/6

11:25-21:35

2 stops47h 40m

Patna

Mon 13/7

22:10-09:40

2 stops46h 00m

₹ 140,239

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 24/6

20:10-21:25

2 stops38h 45m

Patna

Mon 13/7

19:10-09:40

2 stops49h 00m

₹ 158,543

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 24/6

20:10-21:25

2 stops38h 45m

Patna

Sat 11/7

19:10-09:40

2 stops49h 00m

₹ 159,306

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Thu 10/9

17:50-20:20

2 stops40h 00m

Patna

Mon 14/9

15:50-12:30

2 stops31h 10m

₹ 159,687
Fastest return journey

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 6/7

21:50-18:30

2 stops34h 10m

Patna

Mon 13/7

19:10-19:50

2 stops35h 10m

₹ 160,545

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 24/6

15:10-19:15

2 stops41h 35m

Patna

Tue 14/7

11:05-12:55

3 stops36h 20m

₹ 175,227

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 24/6

22:30-12:45

2 stops27h 45m

Patna

Fri 10/7

20:55-11:30

3 stops49h 05m

₹ 176,276
Cheapest one-way
Fastest single journey

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 30/11

17:20-07:55

2 stops27h 05m

₹ 74,267

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 24/6

20:10-21:25

2 stops38h 45m

₹ 85,802

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 15 resultsSorted by cheapest first
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Best time to book a flight from Illinois to Patna

Have a flexible travel schedule? Discover the best time to fly to Patna from 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 from Illinois to Patna
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Patna. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Patna from Illinois?

    For a flight from Illinois to Patna, you will be flying into Patna. Patna (PAT) is just 3.0 km from the centre of the city.

  • How long is the flight from Illinois to Patna?

    There are many flights that can get you from Illinois to Patna in 47h 40m. Fly via IndiGo to get the fastest option. Airlines will cover a distance of 12458 km.

  • Can I find deals for flights from Illinois to Patna that include hotel bookings?

    Yes. In addition to deals on Illinois to Patna flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Patna?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Patna.

  • Can I find deals for business class flights from Illinois to Patna?

    Yes. Cheapflights offers flight deals from Illinois to Patna by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Why should you use Cheapflights to find cheap flight tickets from Illinois to Patna?

Cheapflights helps you find that perfect flight to Patna from Illinois by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Illinois to Patna with no change fees?

Need flexible booking options for your flight to Patna from Illinois? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Illinois to Patna become cheaper?

Not ready to book yet? You can track prices for flights from Illinois to Patna on Cheapflights with our Price Alert feature and get notified when better prices are available.

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