Find flights
When to book
FAQs

Cheap flights from Patna to Illinois from ₹ 125,947

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
PAT — ORD
27 Jun — 4 Jul1
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 May 2026.

Tue 2/622:10
PAT
-
ORD
2 stops27h 30m
Air France
Wed 23/917:10
ORD
-
PAT
2 stops28h 15m
Air France
Deal found 25/5₹ 125,947
Tue 23/621:25
PAT
-
ORD
2 stops28h 50m
Multiple Airlines
Wed 4/1119:45
ORD
-
PAT
2 stops27h 05m
Multiple Airlines
Deal found 23/5₹ 131,119
Mon 22/621:25
PAT
-
ORD
2 stops28h 50m
Multiple Airlines
Thu 5/1119:45
ORD
-
PAT
2 stops27h 05m
Multiple Airlines
Deal found 23/5₹ 131,215
Tue 2/610:20
PAT
-
ORD
3 stops38h 40m
Air India
Wed 23/913:00
ORD
-
PAT
2 stops43h 00m
Air India
Deal found 27/5₹ 133,417
Fri 10/719:10
PAT
-
ORD
2 stops54h 30m
Multiple Airlines
Fri 17/721:50
ORD
-
PAT
2 stops28h 10m
Multiple Airlines
Deal found 27/5₹ 138,206
Wed 8/719:10
PAT
-
ORD
2 stops49h 00m
Multiple Airlines
Wed 15/711:25
ORD
-
PAT
2 stops38h 35m
Multiple Airlines
Deal found 24/5₹ 139,451
Tue 23/621:25
PAT
-
ORD
2 stops28h 50m
Multiple Airlines
Tue 30/620:35
ORD
-
PAT
2 stops30h 20m
Multiple Airlines
Deal found 24/5₹ 145,677
Tue 23/613:20
PAT
-
ORD
3 stops42h 39m
Air India
Wed 4/1113:00
ORD
-
PAT
2 stops42h 00m
Air India
Deal found 23/5₹ 147,018

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 May 2026.

Round-trip from

₹ 131,119
23/6-4/11
  • 23/6-4/11
  • 4 total stops
  • 55h 55m 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 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
Fastest return journey

PatnaChicago

PAT - ORD

PATORD

Patna

Tue 23/6

21:25-15:45

2 stops28h 50m

Chicago O'Hare Intl

Wed 4/11

19:45-10:20

2 stops27h 05m

₹ 131,119

PatnaChicago

PAT - ORD

PATORD

Patna

Mon 22/6

21:25-15:45

2 stops28h 50m

Chicago O'Hare Intl

Thu 5/11

19:45-10:20

2 stops27h 05m

₹ 131,215

PatnaChicago

PAT - ORD

PATORD

Patna

Mon 22/6

21:25-15:45

2 stops28h 50m

Chicago O'Hare Intl

Wed 4/11

19:45-10:20

2 stops27h 05m

₹ 131,215

PatnaChicago

PAT - ORD

PATORD

Patna

Mon 22/6

21:25-15:45

2 stops28h 50m

Chicago O'Hare Intl

Tue 3/11

19:45-10:20

2 stops27h 05m

₹ 131,215

PatnaChicago

PAT - ORD

PATORD

Patna

Fri 10/7

19:10-15:10

2 stops54h 30m

Chicago O'Hare Intl

Fri 17/7

21:50-12:30

2 stops28h 10m

₹ 138,206

PatnaChicago

PAT - ORD

PATORD

Patna

Wed 8/7

19:10-09:40

2 stops49h 00m

Chicago O'Hare Intl

Wed 15/7

11:25-12:30

2 stops38h 35m

₹ 139,643

PatnaChicago

PAT - ORD

PATORD

Patna

Tue 23/6

21:25-15:45

2 stops28h 50m

Chicago O'Hare Intl

Tue 30/6

20:35-13:25

2 stops30h 20m

₹ 145,677

PatnaChicago

PAT - ORD

PATORD

Patna

Wed 8/7

21:20-21:58

3 stops59h 08m

Chicago O'Hare Intl

Wed 15/7

06:00-20:45

2 stops28h 15m

₹ 176,326

PatnaChicago

PAT - ORD

PATORD

Patna

Sun 28/6

21:25-15:45

2 stops28h 50m

Chicago O'Hare Intl

Wed 4/11

19:45-10:20

2 stops27h 05m

₹ 177,667

PatnaChicago

PAT - ORD

PATORD

Patna

Sun 28/6

21:25-15:45

2 stops28h 50m

Chicago O'Hare Intl

Tue 3/11

19:45-10:20

2 stops27h 05m

₹ 177,667

Flights are sorted by cheapest return flights first.

Deals found on 23/5

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Patna to Illinois?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Illinois from Patna today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Patna to Illinois by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.