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Cheap flights from Illinois to Patna from ₹ 50,674

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
27 Aug — 3 Sep1
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 28 July 2026.

Tue 8/914:00
ORD
-
PAT
2 stops31h 25m
Multiple Airlines
Tue 15/908:20
PAT
-
ORD
2 stops34h 45m
Multiple Airlines
Deal found 24/7₹ 85,416
Wed 9/921:10
ORD
-
PAT
2 stops26h 00m
Multiple Airlines
Wed 16/910:20
PAT
-
ORD
2 stops32h 45m
Multiple Airlines
Deal found 26/7₹ 94,533
Thu 10/920:25
ORD
-
PAT
2 stops48h 05m
Multiple Airlines
Thu 17/910:20
PAT
-
ORD
2 stops32h 45m
Multiple Airlines
Deal found 27/7₹ 99,236
Sat 22/820:25
ORD
-
PAT
2 stops29h 35m
Multiple Airlines
Sat 29/808:45
PAT
-
ORD
2 stops41h 25m
Multiple Airlines
Deal found 24/7₹ 104,802
Fri 21/820:25
ORD
-
PAT
2 stops25h 10m
Multiple Airlines
Mon 31/815:20
PAT
-
ORD
2 stops27h 45m
Multiple Airlines
Deal found 24/7₹ 109,313

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 28 July 2026.

Round-trip from

₹ 85,416

One-way from

₹ 50,674
8/9-15/9
  • 8/9-15/9
  • 4 total stops
  • 66h 10m total
  • Illinois to Patna
Search Deals
30/11
  • 30/11
  • 2 total stops
  • 31h 50m 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 28 July 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 10/9

20:25-07:00

2 stops48h 05m

Patna

Thu 17/9

10:20-08:35

2 stops32h 45m

₹ 99,236

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 9/9

21:10-20:20

2 stops36h 40m

Patna

Wed 16/9

12:55-08:35

3 stops30h 10m

₹ 102,403

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sat 22/8

20:25-12:30

2 stops29h 35m

Patna

Sat 29/8

08:45-15:40

2 stops41h 25m

₹ 104,802
Fastest return journey

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Fri 21/8

20:25-08:05

2 stops25h 10m

Patna

Mon 31/8

15:20-08:35

2 stops27h 45m

₹ 109,313

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Tue 8/9

14:00-07:00

3 stops30h 30m

Patna

Tue 15/9

14:25-08:35

2 stops28h 40m

₹ 112,768

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Thu 3/12

14:35-09:40

2 stops55h 35m

Patna

Sat 12/12

15:30-12:55

2 stops32h 55m

₹ 121,982

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Fri 11/12

18:50-09:40

2 stops27h 20m

Patna

Mon 4/1

19:10-16:15

2 stops32h 35m

₹ 146,839

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Thu 5/11

19:45-08:10

2 stops24h 55m

Patna

Sun 29/11

08:55-14:55

2 stops41h 30m

₹ 151,637

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 4/11

19:45-08:10

2 stops48h 55m

Patna

Wed 18/11

08:55-14:55

2 stops41h 30m

₹ 154,612
Cheapest one-way

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 30/11

18:50-15:20

3 stops33h 00m

₹ 55,952

Flights are sorted by cheapest return flights first.

Deals found on 28/7

Showing 1-10 of 16 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.

  • 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.

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