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Cheap flights from Patna to Illinois from ₹ 57,532

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 17/5. Fares are subject to change and may not be available on all flights or dates of travel.
PAT — ORD
1 May — 8 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Patna to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Patna to Illinois
Explore the most affordable flight options available from Patna to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 April 2026.

Wed 3/610:30
PAT
-
ORD
2 stops41h 50m
Multiple Airlines
Wed 16/921:30
ORD
-
PAT
2 stops25h 50m
Multiple Airlines
Deal found 30/3₹ 93,385
Wed 17/623:25
PAT
-
ORD
2 stops26h 45m
Multiple Airlines
Wed 16/921:10
ORD
-
PAT
2 stops27h 20m
Multiple Airlines
Deal found 30/3₹ 100,048
Mon 18/522:10
PAT
-
ORD
2 stops30h 10m
Multiple Airlines
Wed 11/1114:30
ORD
-
PAT
1 stop20h 35m
Multiple Airlines
Deal found 28/3₹ 104,929
Sun 7/622:10
PAT
-
ORD
2 stops30h 10m
Multiple Airlines
Wed 16/913:10
ORD
-
PAT
1 stop21h 30m
Multiple Airlines
Deal found 29/3₹ 113,845
Mon 8/621:45
PAT
-
ORD
2 stops30h 35m
Multiple Airlines
Mon 14/913:10
ORD
-
PAT
1 stop21h 30m
Multiple Airlines
Deal found 29/3₹ 115,440
Thu 14/511:05
PAT
-
ORD
2 stops56h 00m
Multiple Airlines
Thu 21/514:00
ORD
-
PAT
2 stops31h 15m
Multiple Airlines
Deal found 30/3₹ 115,628
Thu 11/608:00
PAT
-
ORD
2 stops37h 40m
Air India
Wed 16/913:10
ORD
-
PAT
2 stops36h 50m
Air India
Deal found 29/3₹ 116,097
Thu 11/622:10
PAT
-
ORD
2 stops30h 10m
Multiple Airlines
Mon 14/913:10
ORD
-
PAT
1 stop21h 30m
Multiple Airlines
Deal found 29/3₹ 116,473

Find flight deals from Patna to Illinois

Keep the following information in mind while searching for Patna to Illinois flight deals. Data was last updated 1 April 2026.

Round-trip from

₹ 93,385

One-way from

₹ 57,532
3/6-16/9
  • 3/6-16/9
  • 4 total stops
  • 67h 40m total
  • Patna to Illinois
Search Deals
17/5
  • 17/5
  • 2 total stops
  • 36h 30m total
  • Patna to Illinois
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Patna to Illinois 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 1 April 2026.
Use the filters below to find and compare flights from Patna to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PatnaChicago

PAT - ORD

PATORD

Patna

Wed 29/4

19:10-16:50

2 stops32h 10m

Chicago O'Hare Intl

Wed 9/9

19:20-18:30

2 stops36h 40m

₹ 118,725

PatnaChicago

PAT - ORD

PATORD

Patna

Mon 18/5

19:10-15:45

2 stops31h 05m

Chicago O'Hare Intl

Sat 14/11

19:45-09:40

2 stops26h 25m

₹ 121,447
Fastest return journey

PatnaChicago

PAT - ORD

PATORD

Patna

Sat 13/6

22:10-17:50

2 stops30h 10m

Chicago O'Hare Intl

Mon 14/9

13:10-21:10

1 stop21h 30m

₹ 124,263

PatnaChicago

PAT - ORD

PATORD

Patna

Tue 12/5

21:25-15:45

2 stops52h 50m

Chicago O'Hare Intl

Tue 19/5

20:35-20:45

2 stops37h 40m

₹ 124,356

PatnaChicago

PAT - ORD

PATORD

Patna

Thu 14/5

18:25-08:35

3 stops48h 40m

Chicago O'Hare Intl

Thu 21/5

14:00-12:15

3 stops35h 45m

₹ 126,327

PatnaChicago

PAT - ORD

PATORD

Patna

Wed 3/6

21:45-22:58

2 stops35h 43m

Chicago O'Hare Intl

Wed 16/9

13:10-09:40

1 stop34h 00m

₹ 129,706

PatnaChicago

PAT - ORD

PATORD

Patna

Tue 28/4

15:20-15:05

2 stops34h 15m

Chicago O'Hare Intl

Wed 7/10

19:20-18:30

2 stops36h 40m

₹ 130,175

PatnaChicago

PAT - ORD

PATORD

Patna

Tue 2/6

22:10-17:50

2 stops30h 10m

Chicago O'Hare Intl

Sun 13/9

13:10-21:10

1 stop21h 30m

₹ 131,020

PatnaChicago

PAT - ORD

PATORD

Patna

Tue 9/6

19:10-15:05

2 stops30h 25m

Chicago O'Hare Intl

Thu 17/9

19:20-09:40

2 stops27h 50m

₹ 138,810
Cheapest one-way

PatnaChicago

PAT - ORD

PATORD

Patna

Fri 10/4

21:45-09:15

3 stops46h 00m

₹ 75,646

Flights are sorted by cheapest return flights first.

Deals found on 30/3

Showing 1-10 of 14 resultsSorted by cheapest first
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Best time to book a flight from Patna to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Patna 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 Patna to Illinois
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 Patna to Illinois. 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 from for flights from Patna to Illinois?

    Patna (PAT), located 3.0 km from the city centre, is the airport you fly out of when you book flights from Patna to Illinois.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Patna to Illinois 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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Can Cheapflights find flights from Patna to Illinois with no change fees?

Need flexible booking options for your flight to Illinois from Patna? 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 Patna to Illinois become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Illinois from Patna today and book when prices fit your budget.

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