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Cheap flights from Illinois to Patna from ₹ 102,865

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PAT
26 Jun — 3 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 27 May 2026.

Thu 9/714:00
ORD
-
PAT
2 stops36h 00m
Multiple Airlines
Thu 13/807:35
PAT
-
ORD
2 stops42h 35m
Multiple Airlines
Deal found 24/5₹ 102,865
Thu 17/917:50
ORD
-
PAT
2 stops32h 25m
British Airways
Mon 21/920:55
PAT
-
ORD
2 stops31h 10m
British Airways
Deal found 25/5₹ 129,778
Mon 8/618:10
ORD
-
PAT
2 stops32h 05m
British Airways
Mon 22/618:35
PAT
-
ORD
2 stops28h 20m
British Airways
Deal found 24/5₹ 141,271
Mon 6/718:10
ORD
-
PAT
2 stops39h 40m
British Airways
Mon 13/718:35
PAT
-
ORD
2 stops52h 25m
British Airways
Deal found 24/5₹ 144,145
Mon 22/618:10
ORD
-
PAT
2 stops32h 05m
British Airways
Tue 7/720:55
PAT
-
ORD
2 stops26h 05m
British Airways
Deal found 27/5₹ 148,550
Thu 11/620:50
ORD
-
PAT
2 stops37h 00m
British Airways
Thu 9/720:55
PAT
-
ORD
2 stops50h 05m
British Airways
Deal found 24/5₹ 154,680
Wed 24/620:10
ORD
-
PAT
2 stops37h 40m
Multiple Airlines
Fri 10/719:10
PAT
-
ORD
2 stops49h 00m
Multiple Airlines
Deal found 25/5₹ 158,990

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 27 May 2026.

Round-trip from

₹ 102,865
9/7-13/8
  • 9/7-13/8
  • 4 total stops
  • 78h 35m 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 27 May 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 9/7

14:00-12:30

2 stops36h 00m

Patna

Thu 13/8

07:35-15:40

2 stops42h 35m

₹ 102,865

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Thu 17/9

17:50-12:45

2 stops32h 25m

Patna

Mon 21/9

20:55-17:35

2 stops31h 10m

₹ 129,778

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 8/6

18:10-12:45

2 stops32h 05m

Patna

Mon 22/6

18:35-12:25

2 stops28h 20m

₹ 141,271

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 6/7

18:10-20:20

2 stops39h 40m

Patna

Mon 13/7

18:35-12:30

2 stops52h 25m

₹ 144,145
Fastest return journey

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 22/6

18:10-12:45

2 stops32h 05m

Patna

Tue 7/7

20:55-12:30

2 stops26h 05m

₹ 148,550

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 24/6

19:05-20:20

3 stops38h 45m

Patna

Fri 10/7

08:20-07:45

3 stops33h 55m

₹ 400,636

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Tue 16/6

18:10-18:00

3 stops37h 20m

Patna

Tue 30/6

08:20-07:45

3 stops33h 55m

₹ 1,365,302

Flights are sorted by cheapest return flights first.

Deals found on 24/5

Sorted by cheapest first

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 32h 25m. Fly via British Airways 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.

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