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Cheap flights from Patna to Illinois from ₹ 81,207

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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
PAT — ORD
18 Jun — 25 Jun1
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 19 May 2026.

Tue 2/614:00
PAT
-
ORD
2 stops33h 05m
Multiple Airlines
Wed 23/919:05
ORD
-
PAT
2 stops49h 25m
Multiple Airlines
Deal found 18/5₹ 128,258
Tue 30/619:10
PAT
-
ORD
2 stops49h 00m
Multiple Airlines
Tue 7/720:10
ORD
-
PAT
2 stops27h 00m
Multiple Airlines
Deal found 15/5₹ 138,553
Thu 11/621:25
PAT
-
ORD
2 stops28h 50m
Multiple Airlines
Wed 17/620:35
ORD
-
PAT
2 stops29h 25m
Multiple Airlines
Deal found 14/5₹ 140,574
Mon 15/619:10
PAT
-
ORD
2 stops49h 00m
Multiple Airlines
Sun 21/620:10
ORD
-
PAT
2 stops27h 00m
Multiple Airlines
Deal found 17/5₹ 142,498
Tue 2/615:20
PAT
-
ORD
3 stops33h 40m
Air India
Wed 23/913:00
ORD
-
PAT
2 stops43h 00m
Air India
Deal found 18/5₹ 146,347
Tue 2/619:10
PAT
-
ORD
2 stops27h 55m
Multiple Airlines
Sat 3/1021:40
ORD
-
PAT
2 stops46h 50m
Multiple Airlines
Deal found 15/5₹ 152,216
Tue 2/615:20
PAT
-
ORD
3 stops42h 08m
Air India
Sat 3/1013:00
ORD
-
PAT
2 stops43h 00m
Air India
Deal found 18/5₹ 156,738

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 19 May 2026.

Round-trip from

₹ 128,258

One-way from

₹ 81,207
2/6-23/9
  • 2/6-23/9
  • 4 total stops
  • 82h 30m total
  • Patna to Illinois
Search Deals
4/6
  • 4/6
  • 2 total stops
  • 28h 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 19 May 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

Tue 2/6

13:20-14:00

2 stops35h 10m

Chicago O'Hare Intl

Wed 23/9

19:05-07:00

2 stops49h 25m

₹ 128,354

PatnaChicago

PAT - ORD

PATORD

Patna

Tue 30/6

19:10-09:40

2 stops49h 00m

Chicago O'Hare Intl

Tue 7/7

20:10-09:40

2 stops27h 00m

₹ 138,553

PatnaChicago

PAT - ORD

PATORD

Patna

Thu 11/6

21:25-15:45

2 stops28h 50m

Chicago O'Hare Intl

Wed 17/6

20:35-12:30

2 stops29h 25m

₹ 140,574

PatnaChicago

PAT - ORD

PATORD

Patna

Mon 15/6

19:10-09:40

2 stops49h 00m

Chicago O'Hare Intl

Sun 21/6

20:10-09:40

2 stops27h 00m

₹ 142,498

PatnaChicago

PAT - ORD

PATORD

Patna

Tue 2/6

15:20-14:30

3 stops33h 40m

Chicago O'Hare Intl

Wed 23/9

13:00-18:30

2 stops43h 00m

₹ 146,347

PatnaChicago

PAT - ORD

PATORD

Patna

Tue 2/6

15:20-22:58

3 stops42h 08m

Chicago O'Hare Intl

Sat 3/10

13:00-18:30

2 stops43h 00m

₹ 156,738

PatnaChicago

PAT - ORD

PATORD

Patna

Tue 16/6

19:10-15:55

2 stops31h 15m

Chicago O'Hare Intl

Tue 23/6

16:05-09:40

2 stops31h 05m

₹ 161,357

PatnaChicago

PAT - ORD

PATORD

Patna

Tue 2/6

19:10-12:35

2 stops27h 55m

Chicago O'Hare Intl

Sat 3/10

19:05-09:40

2 stops28h 05m

₹ 181,562
Fastest return journey

PatnaChicago

PAT - ORD

PATORD

Patna

Tue 2/6

22:10-15:10

2 stops27h 30m

Chicago O'Hare Intl

Wed 23/9

17:10-07:55

2 stops28h 15m

₹ 183,968
Cheapest one-way

PatnaChicago

PAT - ORD

PATORD

Patna

Tue 2/6

18:05-12:55

3 stops29h 20m

₹ 85,056

Flights are sorted by cheapest return flights first.

Deals found on 15/5

Showing 1-10 of 17 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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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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