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Cheap flights from Patna to Illinois from ₹ 71,788

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
PAT — ORD
27 Aug — 3 Sep1
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 28 July 2026.

Wed 9/907:35
PAT
-
ORD
3 stops35h 30m
Multiple Airlines
Wed 16/914:00
ORD
-
PAT
3 stops30h 30m
Multiple Airlines
Deal found 26/7₹ 120,350
Wed 26/819:20
PAT
-
ORD
2 stops48h 50m
Multiple Airlines
Wed 2/920:10
ORD
-
PAT
2 stops32h 10m
Multiple Airlines
Deal found 27/7₹ 134,650
Tue 25/815:20
PAT
-
ORD
2 stops52h 50m
Multiple Airlines
Tue 1/911:25
ORD
-
PAT
2 stops38h 35m
Multiple Airlines
Deal found 25/7₹ 135,226
Mon 24/808:45
PAT
-
ORD
2 stops64h 50m
Multiple Airlines
Mon 31/819:20
ORD
-
PAT
2 stops36h 40m
Multiple Airlines
Deal found 25/7₹ 138,201
Thu 27/813:20
PAT
-
ORD
2 stops36h 15m
Multiple Airlines
Thu 3/919:20
ORD
-
PAT
2 stops36h 40m
Multiple Airlines
Deal found 28/7₹ 138,585
Sun 23/815:20
PAT
-
ORD
2 stops34h 15m
Multiple Airlines
Sun 30/819:20
ORD
-
PAT
2 stops30h 40m
Multiple Airlines
Deal found 23/7₹ 143,575
Wed 29/719:10
PAT
-
ORD
2 stops35h 10m
Multiple Airlines
Thu 6/821:50
ORD
-
PAT
2 stops28h 10m
Multiple Airlines
Deal found 27/7₹ 145,207

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 28 July 2026.

Round-trip from

₹ 120,350

One-way from

₹ 71,788
9/9-16/9
  • 9/9-16/9
  • 6 total stops
  • 66h 00m total
  • Patna to Illinois
Search Deals
7/9
  • 7/9
  • 2 total stops
  • 54h 50m 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 28 July 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
Fastest return journey

PatnaChicago

PAT - ORD

PATORD

Patna

Wed 9/9

21:10-15:40

2 stops29h 00m

Chicago O'Hare Intl

Wed 16/9

14:00-07:55

3 stops31h 25m

₹ 124,669

PatnaChicago

PAT - ORD

PATORD

Patna

Wed 26/8

19:20-09:40

2 stops48h 50m

Chicago O'Hare Intl

Wed 2/9

20:10-14:50

2 stops32h 10m

₹ 134,650

PatnaChicago

PAT - ORD

PATORD

Patna

Tue 25/8

15:20-09:40

2 stops52h 50m

Chicago O'Hare Intl

Tue 1/9

11:25-12:30

2 stops38h 35m

₹ 135,226

PatnaChicago

PAT - ORD

PATORD

Patna

Mon 24/8

08:45-15:05

2 stops64h 50m

Chicago O'Hare Intl

Mon 31/8

19:20-18:30

2 stops36h 40m

₹ 138,201

PatnaChicago

PAT - ORD

PATORD

Patna

Thu 27/8

13:20-15:05

2 stops36h 15m

Chicago O'Hare Intl

Thu 3/9

19:20-18:30

2 stops36h 40m

₹ 138,585

PatnaChicago

PAT - ORD

PATORD

Patna

Sun 23/8

15:20-15:05

2 stops34h 15m

Chicago O'Hare Intl

Sun 30/8

19:20-12:30

2 stops30h 40m

₹ 143,575
Cheapest one-way

PatnaChicago

PAT - ORD

PATORD

Patna

Mon 7/9

13:20-09:40

2 stops54h 50m

₹ 71,788

PatnaChicago

PAT - ORD

PATORD

Patna

Mon 7/9

22:10-07:20

3 stops43h 40m

₹ 169,104
Fastest single journey

PatnaChicago

PAT - ORD

PATORD

Patna

Thu 10/9

08:20-07:20

3 stops33h 30m

₹ 178,893

Flights are sorted by cheapest return flights first.

Deals found on 26/7

Sorted by cheapest first

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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Why should you use Cheapflights to find cheap flight tickets from Patna to Illinois?

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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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