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

IndiGo and Air India are the most popular carriers operating from Chicago to Patna

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

Prices for flights from Chicago to Patna Airport refresh daily.

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

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

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Patna Airport.

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

The travel and health documents required for your trip to Patna Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Patna Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$525 Cheap Flights from Chicago to Patna in 2025/26

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Find the cheapest flights from Chicago to Patna

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:30 pm - 10:05 am

ORD

PAT

33h 05m1 stop

4:45 pm - 11:30 am

PAT

ORD

54h 15m3 stops

$885Air India

Wed, Feb 4 - Mon, Feb 16

1:30 pm - 9:40 am

ORD

PAT

32h 40m1 stop

1:05 pm - 11:30 am

PAT

ORD

57h 55m3 stops

$896Air India

Wed, Feb 4 - Mon, Feb 16

1:30 pm - 9:40 am

ORD

PAT

32h 40m1 stop

1:05 pm - 11:30 am

PAT

ORD

57h 55m3 stops

$898Air India

Wed, Feb 4 - Mon, Feb 16

1:30 pm - 12:30 pm

ORD

PAT

35h 30m2 stops

4:45 pm - 11:30 am

PAT

ORD

54h 15m3 stops

$932Air India

Wed, Feb 4 - Mon, Feb 16

1:30 pm - 12:30 pm

ORD

PAT

35h 30m2 stops

1:05 pm - 11:30 am

PAT

ORD

57h 55m3 stops

$942Air India

Wed, Feb 4 - Mon, Feb 16

1:30 pm - 12:30 pm

ORD

PAT

35h 30m2 stops

1:05 pm - 11:30 am

PAT

ORD

57h 55m3 stops

$945Air India

Wed, Feb 4 - Mon, Feb 16

1:30 pm - 9:40 am

ORD

PAT

32h 40m1 stop

1:05 pm - 11:30 am

PAT

ORD

57h 55m2 stops

$998Air India

Wed, Feb 4 - Mon, Feb 16

1:30 pm - 12:35 pm

ORD

PAT

35h 35m1 stop

8:20 pm - 11:30 am

PAT

ORD

50h 40m3 stops

$1,086Air India

Mon, Jan 5 - Mon, Jan 26

1:30 pm - 1:10 pm

ORD

PAT

36h 10m2 stops

8:20 pm - 11:30 am

PAT

ORD

50h 40m3 stops

$1,091Air India

Mon, Jan 5 - Mon, Jan 26

1:30 pm - 9:40 am

ORD

PAT

32h 40m1 stop

1:05 pm - 11:10 pm

PAT

ORD

45h 35m2 stops

$1,158Air India

Wed, Feb 4 - Mon, Feb 16

Air India flights from Chicago to Patna

Our best Air India deals on Chicago to Patna flight tickets

Air India

Feb 4

ORD1:30 pmChicago O'Hare Intl

32h 40m

1 stop

PAT9:40 amPatna

Feb 16

PAT1:05 pmPatna

57h 55m

3 stops

ORD11:30 amChicago O'Hare Intl

$896

Find similar

Air India

Feb 4

ORD1:30 pmChicago O'Hare Intl

32h 40m

1 stop

PAT9:40 amPatna

Feb 16

PAT1:05 pmPatna

57h 55m

3 stops

ORD11:30 amChicago O'Hare Intl

$898

Find similar

Air India

Feb 4

ORD1:30 pmChicago O'Hare Intl

35h 30m

2 stops

PAT12:30 pmPatna

Feb 16

PAT1:05 pmPatna

57h 55m

3 stops

ORD11:30 amChicago O'Hare Intl

$942

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 2/4

1:30 pm-10:05 am

1 stop33h 05m

Patna

Mon 2/16

4:45 pm-11:30 am

3 stops54h 15m

$885

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 2/4

1:30 pm-9:40 am

1 stop32h 40m

Patna

Mon 2/16

1:05 pm-11:30 am

3 stops57h 55m

$896

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 2/4

1:30 pm-9:40 am

1 stop32h 40m

Patna

Mon 2/16

1:05 pm-11:30 am

3 stops57h 55m

$898

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 2/4

1:30 pm-12:30 pm

2 stops35h 30m

Patna

Mon 2/16

4:45 pm-11:30 am

3 stops54h 15m

$932

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 2/4

1:30 pm-12:30 pm

2 stops35h 30m

Patna

Mon 2/16

1:05 pm-11:30 am

3 stops57h 55m

$942

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 2/4

1:30 pm-12:30 pm

2 stops35h 30m

Patna

Mon 2/16

1:05 pm-11:30 am

3 stops57h 55m

$945

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 2/4

1:30 pm-9:40 am

1 stop32h 40m

Patna

Mon 2/16

1:05 pm-11:30 am

2 stops57h 55m

$998

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 1/5

1:30 pm-12:35 pm

1 stop35h 35m

Patna

Mon 1/26

8:20 pm-11:30 am

3 stops50h 40m

$1,086

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 1/5

1:30 pm-1:10 pm

2 stops36h 10m

Patna

Mon 1/26

8:20 pm-11:30 am

3 stops50h 40m

$1,091

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 2/4

1:30 pm-9:40 am

1 stop32h 40m

Patna

Mon 2/16

1:05 pm-11:10 pm

2 stops45h 35m

$1,158

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

How to get the cheapest flight ticket from Chicago 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 Chicago 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 Chicago to Patna flights?

You could potentially save up to 37% on your flight if you consider stops on a Chicago to Patna flight.

When to book flights from Chicago to Patna

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Patna according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Chicago to Patna (CHI to PAT) flight deals and tips

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

Fastest flight time	32h 40m
Direct flights	None

The fastest flight from Chicago to Patna takes 32h 40m

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

Search flight deals

How far is Chicago to Patna by plane?
The distance between Chicago and Patna is about 7745.1 mi. By plane, this route typically takes 32h 40m.
When did momondo last update prices for flights from Chicago to Patna Airport?
Prices for flights from Chicago to Patna Airport refresh daily.
How many operators does momondo search for flights from Chicago to Patna Airport?
As of December 2025, there is 1 operator available to choose from for flights from Chicago to Patna Airport.
How old do you have to be to fly from Chicago to Patna Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Patna Airport.
What documentation or ID do you need to fly to Patna Airport?
The travel and health documents required for your trip to Patna Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Patna Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Chicago to Patna?
momondo data reveals that the most frequently booked airline on the route from Chicago to Patna is Air India, representing 100% of all bookings.

Best airlines flying from Chicago to Patna

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

Airline	Rating	Free Cancellation	Price
Air India	PriceFrom $801	Free Cancellation	Rating 5.5 2,952 reviews		Search Air India flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Patna from Chicago.

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

All flight searches from Chicago to Patna on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Patna from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Patna from Chicago 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.