What is the cheapest airline that flies from Illinois to Patna?

Air India is the most popular carrier operating from Illinois to Patna

When did momondo last update prices for flights from Illinois to Patna Airport?

Prices for flights from Illinois to Patna Airport refresh daily.

How many operators does momondo search for flights from Illinois to Patna Airport?

As of September 2025, there is 1 operator available to choose from for flights from Illinois to Patna Airport.

How old do you have to be to fly from Illinois to Patna Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Patna Airport.

What documentation or ID do you need to fly to Patna Airport?

The required travel and health documents for your Patna Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Patna Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$560 Cheap Flights from Illinois to Patna in 2025/26

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Find the cheapest flights from Illinois to Patna

Round-trip

One-way

Last minute

Cheap round-trip flights

12:50 pm - 5:45 pmORD-PAT

42h 25m2 stops

6:20 pm - 6:25 pmPAT-ORD

35h 35m2 stops

$1,010Multiple Airlines

Find Deal

Sat, Nov 1 - Sat, Nov 15

6:45 am - 10:00 pmORD-PAT

28h 45m2 stops

4:05 pm - 11:30 amPAT-ORD

30h 55m2 stops

$1,059Air India

Find Deal

Sat, Nov 1 - Sat, Nov 15

6:45 am - 6:25 pmORD-PAT

25h 10m2 stops

1:55 pm - 11:30 amPAT-ORD

33h 05m3 stops

$1,085Air India

Find Deal

Sat, Nov 1 - Sat, Nov 15

6:45 am - 6:25 pmORD-PAT

25h 10m2 stops

1:20 pm - 11:30 amPAT-ORD

33h 40m2 stops

$1,113Air India

Find Deal

Sat, Nov 1 - Sat, Nov 15

1:30 pm - 10:00 pmORD-PAT

21h 00m1 stop

1:55 pm - 9:33 pmPAT-ORD

43h 08m2 stops

$1,124Air India

Find Deal

Wed, Feb 4 - Mon, Feb 16

9:20 pm - 2:45 pmORD-PAT

30h 55m2 stops

7:10 pm - 11:30 amPAT-ORD

27h 50m2 stops

$1,136Multiple Airlines

Find Deal

Sat, Nov 1 - Sat, Nov 15

1:30 pm - 1:20 pmORD-PAT

36h 20m2 stops

1:55 pm - 9:33 pmPAT-ORD

43h 08m2 stops

$1,138Air India

Find Deal

Wed, Feb 4 - Mon, Feb 16

6:45 am - 6:25 pmORD-PAT

25h 10m2 stops

1:55 pm - 11:30 amPAT-ORD

33h 05m3 stops

$1,140Air India

Find Deal

Sat, Nov 1 - Sat, Nov 15

5:20 pm - 10:10 amORD-PAT

29h 20m2 stops

9:20 pm - 3:10 pmPAT-ORD

29h 20m2 stops

$1,275Air France

Find Deal

Fri, Nov 28 - Wed, Dec 10

5:20 pm - 7:55 amORD-PAT

27h 05m2 stops

9:20 pm - 3:10 pmPAT-ORD

29h 20m2 stops

$1,634Air France

Find Deal

Thu, Nov 20 - Thu, Dec 25

Air India flights from Illinois to Patna

Our best Air India deals on Illinois to Patna flight tickets

Air India

Nov 1

ORD6:45 amChicago O'Hare Intl

28h 45m

2 stops

PAT10:00 pmPatna

Nov 15

PAT4:05 pmPatna

30h 55m

2 stops

ORD11:30 amChicago O'Hare Intl

$1,059

Find similar

Air India

Nov 1

ORD6:45 amChicago O'Hare Intl

25h 10m

2 stops

PAT6:25 pmPatna

Nov 15

PAT1:55 pmPatna

33h 05m

3 stops

ORD11:30 amChicago O'Hare Intl

$1,085

Find similar

Air India

Nov 1

ORD6:45 amChicago O'Hare Intl

25h 10m

2 stops

PAT6:25 pmPatna

Nov 15

PAT1:20 pmPatna

33h 40m

2 stops

ORD11:30 amChicago O'Hare Intl

$1,113

Find similar

Air France flights from Illinois to Patna

Our best Air France deals on Illinois to Patna flight tickets

Air France

Nov 28

ORD5:20 pmChicago O'Hare Intl

29h 20m

2 stops

PAT10:10 amPatna

Dec 10

PAT9:20 pmPatna

29h 20m

2 stops

ORD3:10 pmChicago O'Hare Intl

$1,275

Find similar

Air France

Oct 5

ORD5:10 pmChicago O'Hare Intl

28h 15m

2 stops

PAT7:55 amPatna

Nov 5

PAT9:20 pmPatna

29h 20m

2 stops

ORD3:10 pmChicago O'Hare Intl

$1,611

Find similar

Air France

Nov 20

ORD5:20 pmChicago O'Hare Intl

27h 05m

2 stops

PAT7:55 amPatna

Dec 25

PAT9:20 pmPatna

29h 20m

2 stops

ORD3:10 pmChicago O'Hare Intl

$1,634

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sat 11/1

12:50 pm-5:45 pm

2 stops42h 25m

Patna

Sat 11/15

6:20 pm-6:25 pm

2 stops35h 35m

$1,010

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sat 11/1

6:45 am-10:00 pm

2 stops28h 45m

Patna

Sat 11/15

4:05 pm-11:30 am

2 stops30h 55m

$1,059

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sat 11/1

6:45 am-6:25 pm

2 stops25h 10m

Patna

Sat 11/15

1:55 pm-11:30 am

3 stops33h 05m

$1,085

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sat 11/1

6:45 am-6:25 pm

2 stops25h 10m

Patna

Sat 11/15

1:20 pm-11:30 am

2 stops33h 40m

$1,113

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 2/4

1:30 pm-10:00 pm

1 stop21h 00m

Patna

Mon 2/16

1:55 pm-9:33 pm

2 stops43h 08m

$1,124

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sat 11/1

9:20 pm-2:45 pm

2 stops30h 55m

Patna

Sat 11/15

7:10 pm-11:30 am

2 stops27h 50m

$1,136

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 2/4

1:30 pm-1:20 pm

2 stops36h 20m

Patna

Mon 2/16

1:55 pm-9:33 pm

2 stops43h 08m

$1,138

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sat 11/1

6:45 am-6:25 pm

2 stops25h 10m

Patna

Sat 11/15

1:55 pm-11:30 am

3 stops33h 05m

$1,140

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Fri 11/28

5:20 pm-10:10 am

2 stops29h 20m

Patna

Wed 12/10

9:20 pm-3:10 pm

2 stops29h 20m

$1,275

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Thu 11/20

5:20 pm-7:55 am

2 stops27h 05m

Patna

Thu 12/25

9:20 pm-3:10 pm

2 stops29h 20m

$1,634

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Patna

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Patna?

Our data shows that Saturday is the least expensive day to fly to Patna. Tickets to fly out on this day can be as low as $1,178. The most expensive day to fly to Patna is Tuesday, with ticket prices averaging around $1,749.

What is the cheapest time of day to depart on your flight to Patna?

Our most recent data shows that the best time of day to fly to Patna is in the evening. Flights from Illinois to Patna during this time can be as low as $1,308. Try not to purchase tickets in the morning because they tend to be around $1,319. Of course, these prices can vary depending on the time of year and what airport you fly to.

Can stopping save me money on Illinois to Patna flights?

You could potentially save up to 41% on your flight if you consider stops on a Illinois to Patna flight.

Cheap Illinois to Patna flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Patna

Direct flights	None

There are no direct flights from Illinois to Patna. There are no popular flight routes from Illinois to Patna.

Search flight deals

When did momondo last update prices for flights from Illinois to Patna Airport?
Prices for flights from Illinois to Patna Airport refresh daily.
How many operators does momondo search for flights from Illinois to Patna Airport?
As of September 2025, there is 1 operator available to choose from for flights from Illinois to Patna Airport.
How old do you have to be to fly from Illinois to Patna Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Patna Airport.
What documentation or ID do you need to fly to Patna Airport?
The required travel and health documents for your Patna Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Patna Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Illinois to Patna

Compare and see reviews for airlines that fly from Illinois to Patna with momondo

Airline	Rating	Free Cancellation	Price
Air India	PriceFrom $836	Free Cancellation	Rating 5.5 2,935 reviews		Search Air India flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Patna?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Patna for you.

Can I find flights from Illinois to Patna with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Patna from Illinois with this policy.

How can momondo help me find flights from Illinois to Patna?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Patna from Illinois.

I’m not ready to book a flight from Illinois to Patna right now. Can momondo alert me if prices change?

Price alerts on flights to Patna from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.