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Cheap flights from Illinois to Patna from ₹ 86,909

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 14/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PAT
1 May — 8 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Patna

Enter your travel dates to find the best prices.

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 1 April 2026.

Wed 1/413:00
ORD
-
PAT
2 stops38h 35m
Multiple Airlines
Wed 8/414:40
PAT
-
ORD
2 stops29h 05m
Multiple Airlines
Deal found 28/3₹ 96,106
Mon 8/613:10
ORD
-
PAT
1 stop36h 50m
Air India
Mon 22/620:05
PAT
-
ORD
3 stops49h 35m
Air India
Deal found 31/3₹ 113,282
Tue 7/413:00
ORD
-
PAT
3 stops36h 25m
Multiple Airlines
Thu 9/418:05
PAT
-
ORD
3 stops49h 40m
Multiple Airlines
Deal found 30/3₹ 119,288
Mon 30/1114:30
ORD
-
PAT
1 stop31h 40m
Air India
Tue 29/1219:10
PAT
-
ORD
2 stops27h 50m
Air India
Deal found 28/3₹ 124,826
Wed 23/917:50
ORD
-
PAT
2 stops32h 25m
British Airways
Sun 27/921:00
PAT
-
ORD
2 stops26h 00m
British Airways
Deal found 28/3₹ 127,172
Mon 8/606:15
ORD
-
PAT
2 stops28h 25m
Multiple Airlines
Mon 22/614:00
PAT
-
ORD
3 stops55h 40m
Multiple Airlines
Deal found 31/3₹ 127,454
Sun 29/1114:30
ORD
-
PAT
1 stop31h 40m
Air India
Tue 29/1219:10
PAT
-
ORD
2 stops27h 50m
Air India
Deal found 28/3₹ 127,641
Wed 2/1214:30
ORD
-
PAT
1 stop36h 40m
Air India
Tue 29/1210:25
PAT
-
ORD
2 stops36h 35m
Air India
Deal found 28/3₹ 130,551

Find flight deals from Illinois to Patna

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

Round-trip from

₹ 113,282

One-way from

₹ 86,909
Air India
  • Air India
  • 8/6-22/6
  • 4 total stops
  • 86h 25m total
  • Illinois to Patna
Search Deals
Air France
  • Air France
  • 14/4
  • 2 total stops
  • 28h 15m total
  • Illinois to Patna
Search Deals

Cheapflights Fare Finder

 
Customise 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 454,620 searches. Data last updated 1 April 2026.
Use the filters below to find and compare flights from Illinois to Patna that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 8/6

13:10-12:30

1 stop36h 50m

Patna

Mon 22/6

20:05-11:10

3 stops49h 35m

₹ 113,282
Fastest return journey

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 23/9

17:50-12:45

2 stops32h 25m

Patna

Sun 27/9

21:00-12:30

2 stops26h 00m

₹ 127,172

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 8/6

06:15-21:10

2 stops28h 25m

Patna

Mon 22/6

14:00-11:10

3 stops55h 40m

₹ 127,454

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Fri 29/5

15:35-09:40

2 stops31h 35m

Patna

Fri 12/6

20:05-11:10

3 stops49h 35m

₹ 434,450

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 21/9

21:00-12:45

2 stops29h 15m

Patna

Thu 24/9

18:35-17:35

2 stops33h 30m

₹ 773,450
Cheapest one-way
Fastest single journey

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Tue 14/4

17:10-07:55

2 stops28h 15m

₹ 86,909

Flights are sorted by cheapest return flights first.

Deals found on 31/3

Sorted by cheapest first

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 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 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?

    For a flight from Illinois to Patna, you will be flying into Patna. Patna (PAT) is just 3.0 km from the centre of the city.

  • How long is the flight from Illinois to Patna?

    There are many flights that can get you from Illinois to Patna in 32h 25m. Fly via Air India or British Airways to get the fastest option. Airlines will cover a distance of 12458 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 holiday 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

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

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Can Cheapflights find flights from Illinois to Patna with no change fees?

Need flexible booking options for your flight to Patna from Illinois? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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