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Patna

$437+ Cheap flights from Illinois to Patna (PAT)

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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PAT
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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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 August 20, 2025.

Round-trip from

$865
(Indian Eagle)

One-way from

$437
(Kiwi.com)
From Illinois to Patna
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One-way flight from Illinois to Patna
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Find flight deals from Illinois to Patna

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 August 20, 2025.

This Indian Eagle deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/311:10 pmORD - PAT
1 stop22h 20mAir India
Sun 9/76:20 pmPAT - ORD
2 stops27h 20mAir India
Deal found 8/18$865
This FlightHub deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/19:20 pmORD - PAT
2 stops27h 25mIndiGo
Sat 11/156:15 pmPAT - ORD
2 stops35h 40mIndiGo
Deal found 8/17$887
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/191:10 pmORD - PAT
2 stops37h 40mAir India
Sun 10/57:10 pmPAT - ORD
2 stops26h 30mAir India
Deal found 8/18$896
This FlightHub deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/208:20 pmORD - PAT
2 stops36h 55mIndiGo
Thu 12/258:20 pmPAT - ORD
2 stops33h 35mIndiGo
Deal found 8/20$919
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/112:00 pmORD - PAT
1 stop19h 55mAir India
Sat 11/157:10 pmPAT - ORD
1 stop22h 50mAir India
Deal found 8/18$933
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/41:36 pmORD - PAT
2 stops41h 34mAir India
Wed 9/177:10 pmPAT - ORD
2 stops36h 09mAir India
Deal found 8/18$936
This Mytrip deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/41:55 pmORD - PAT
3 stops34h 10mMultiple Airlines
Wed 9/173:25 pmPAT - ORD
3 stops33h 55mMultiple Airlines
Deal found 8/18$1,009

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated August 20, 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

Sun 8/31

1:10 pm-10:00 pm

1 stop22h 20m

Patna

Sun 9/7

6:20 pm-11:10 am

2 stops27h 20m

$865

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Fri 9/19

1:10 pm-10:00 am

1 stop34h 20m

Patna

Sun 10/5

1:20 pm-11:10 am

2 stops32h 20m

$865

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sat 11/1

9:20 pm-11:15 am

2 stops27h 25m

Patna

Sat 11/15

6:15 pm-6:25 pm

2 stops35h 40m

$887

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Thu 11/20

8:20 pm-8:45 pm

2 stops36h 55m

Patna

Thu 12/25

8:20 pm-6:25 pm

2 stops33h 35m

$919

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sat 11/1

12:00 pm-6:25 pm

1 stop19h 55m

Patna

Sat 11/15

7:10 pm-6:30 am

1 stop22h 50m

$933

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Thu 9/4

1:36 pm-5:40 pm

2 stops41h 34m

Patna

Wed 9/17

7:10 pm-8:49 pm

2 stops36h 09m

$936

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Fri 8/29

4:00 pm-11:40 am

2 stops57h 10m

$437

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Fri 8/29

1:10 pm-12:40 pm

1 stop37h 00m

$489

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 2/16

11:00 am-6:25 pm

1 stop19h 55m

$531

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 2/16

8:20 pm-10:10 am

2 stops26h 20m

$568

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

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 round-trip 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?

    If you book a flight to Patna from Illinois, you will be flying to Patna, which is the city’s only airport. Patna (PAT) is located 1.8 mi from the center of Patna.

  • How long is the flight from Illinois to Patna?

    Air India and IndiGo can get you from Illinois to Patna in just under 22h 20m. Your travel time can differ by up to 5h 05m. The distance between Illinois and Patna is about 7741 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 vacation 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Illinois to Patna

Discover the top airline that operate flights from Illinois to Patna. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$848Average$1,076FlexibilityNo cancel feeOn-timeN/A

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