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Cheap flights from Illinois to Patna from ₹ 43,886

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 25/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PAT
16 Dec — 23 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Patna

Keep the following information in mind while searching for Illinois to Patna flight deals. Data was last updated 16 November 2025.

Round-trip from

₹ 65,341

One-way from

₹ 43,886
Air India
  • Air India
  • 4/2-16/2
  • 4 total stops
  • 91h 00m total
  • Illinois to Patna
Search Deals
25/11
  • 25/11
  • 3 total stops
  • 52h 00m total
  • Illinois to Patna
Search Deals

Find 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 16 November 2025.

Mon 29/1213:10ORD - PAT
3 stops35h 55mMultiple Airlines
Mon 5/115:05PAT - ORD
3 stops35h 20mMultiple Airlines
Deal found 13/11₹ 138,839
Wed 19/1113:30ORD - PAT
1 stop32h 40mAir India
Mon 12/113:05PAT - ORD
3 stops57h 55mAir India
Deal found 13/11₹ 150,188
Thu 20/1113:43ORD - PAT
2 stops41h 17mAir India
Thu 25/1215:30PAT - ORD
2 stops31h 30mAir India
Deal found 15/11₹ 153,645
Wed 24/1213:30ORD - PAT
1 stop37h 40mAir India
Wed 21/113:50PAT - ORD
3 stops57h 10mAir India
Deal found 15/11₹ 154,266
Wed 19/1113:30ORD - PAT
1 stop20h 05mMultiple Airlines
Mon 12/123:10PAT - ORD
2 stops32h 20mMultiple Airlines
Deal found 13/11₹ 166,146

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 16 November 2025.
Use the filters below to find and compare flights from Illinois to Patna that are best for you.

Fly from

Illinois

Fly to

Patna

Route

Depart

Return

Price

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 4/2

13:30-10:05

1 stop33h 05m

Patna

Mon 16/2

13:05-11:30

3 stops57h 55m

₹ 65,341

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Fri 27/3

14:30-12:35

1 stop35h 35m

Patna

Mon 6/4

10:25-11:10

2 stops35h 15m

₹ 66,051

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 13/4

13:10-14:40

1 stop39h 00m

Patna

Wed 15/4

19:10-11:10

2 stops26h 30m

₹ 81,389

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Fri 27/3

14:30-20:45

1 stop19h 45m

Patna

Mon 6/4

16:35-11:10

1 stop29h 05m

₹ 86,088

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Tue 25/11

18:35-10:05

3 stops52h 00m

₹ 43,886

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 24/11

18:30-07:55

3 stops49h 55m

₹ 60,022

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sun 23/11

18:35-09:40

3 stops51h 35m

₹ 62,327

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 29/12

13:30-09:40

1 stop32h 40m

₹ 68,622

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sat 22/11

19:21-08:25

3 stops49h 34m

₹ 73,941

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 24/11

13:30-09:40

1 stop32h 40m

₹ 77,842

Flights are sorted by cheapest return flights first.

Deals found on 13/11

Showing 1-10 of 12 results
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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 33h 05m. Fly via Air India 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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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.

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