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

Air India is the most popular carrier 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 September 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.

$780 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

2:10 pm - 5:40 pmORD-PAT

41h 00m2 stops

8:30 am - 7:55 amPAT-ORD

34h 55m2 stops

$935Multiple Airlines

Find Deal

Wed, Oct 29 - Wed, Nov 5

11:50 am - 11:15 amORD-PAT

35h 55m2 stops

9:20 pm - 6:25 pmPAT-ORD

32h 35m2 stops

$948IndiGo

Find Deal

Thu, Nov 20 - Thu, Dec 25

12:50 pm - 8:45 pmORD-PAT

45h 25m2 stops

10:45 am - 6:25 pmPAT-ORD

43h 10m2 stops

$985Multiple Airlines

Find Deal

Sat, Nov 1 - Sat, Nov 15

2:10 pm - 10:20 amORD-PAT

33h 40m3 stops

10:50 am - 7:55 amPAT-ORD

32h 35m3 stops

$1,041Multiple Airlines

Find Deal

Wed, Oct 29 - Wed, Nov 5

2:10 pm - 9:40 amORD-PAT

33h 00m3 stops

10:40 am - 7:55 amPAT-ORD

32h 45m2 stops

$1,052Multiple Airlines

Find Deal

Wed, Oct 29 - Wed, Nov 5

2:30 pm - 10:00 pmORD-PAT

21h 00m1 stop

7:10 pm - 8:52 pmPAT-ORD

37h 12m2 stops

$1,065Air India

Find Deal

Wed, Oct 29 - Wed, Nov 5

1:30 pm - 10:00 pmORD-PAT

21h 00m1 stop

1:55 pm - 9:33 pmPAT-ORD

43h 08m2 stops

$1,087Air India

Find Deal

Wed, Feb 4 - Mon, Feb 16

6:45 am - 1:20 pmORD-PAT

44h 05m2 stops

10:40 pm - 11:30 amPAT-ORD

24h 20m2 stops

$1,126Air India

Find Deal

Sat, Nov 1 - Sat, Nov 15

5:10 pm - 7:55 amORD-PAT

28h 15m2 stops

6:20 pm - 3:00 pmPAT-ORD

31h 10m2 stops

$1,684Air France

Find Deal

Tue, Sep 30 - Sat, Oct 4

5:10 pm - 7:55 amORD-PAT

28h 15m2 stops

6:20 pm - 3:00 pmPAT-ORD

31h 10m2 stops

$1,795Air France

Find Deal

Tue, Sep 30 - Sat, Oct 4

Air France flights from Chicago to Patna

Our best Air France deals on Chicago to Patna flight tickets

Air France

Sep 30

ORD5:10 pmChicago O'Hare Intl

28h 15m

2 stops

PAT7:55 amPatna

Oct 4

PAT6:20 pmPatna

31h 10m

2 stops

ORD3:00 pmChicago O'Hare Intl

$1,684

Find similar

Air France

Sep 30

ORD5:10 pmChicago O'Hare Intl

28h 15m

2 stops

PAT7:55 amPatna

Oct 4

PAT6:20 pmPatna

31h 10m

2 stops

ORD3:00 pmChicago O'Hare Intl

$1,795

Find similar

Air France

Dec 24

ORD5:20 pmChicago O'Hare Intl

29h 20m

2 stops

PAT10:10 amPatna

Jan 21

PAT9:20 pmPatna

29h 20m

2 stops

ORD3:10 pmChicago O'Hare Intl

$2,039

Find similar

Air India flights from Chicago to Patna

Our best Air India deals on Chicago to Patna flight tickets

Air India

Oct 29

ORD2:30 pmChicago O'Hare Intl

21h 00m

1 stop

PAT10:00 pmPatna

Nov 5

PAT7:10 pmPatna

37h 12m

2 stops

ORD8:52 pmChicago O'Hare Intl

$1,065

Find similar

Air India

Feb 4

ORD1:30 pmChicago O'Hare Intl

21h 00m

1 stop

PAT10:00 pmPatna

Feb 16

PAT1:55 pmPatna

43h 08m

2 stops

ORD9:33 pmChicago O'Hare Intl

$1,087

Find similar

Air India

Nov 1

ORD6:45 amChicago O'Hare Intl

44h 05m

2 stops

PAT1:20 pmPatna

Nov 15

PAT10:40 pmPatna

24h 20m

2 stops

ORD11:30 amChicago O'Hare Intl

$1,126

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 10/29

2:10 pm-5:40 pm

2 stops41h 00m

Patna

Wed 11/5

8:30 am-7:55 am

2 stops34h 55m

$935

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Thu 11/20

11:50 am-11:15 am

2 stops35h 55m

Patna

Thu 12/25

9:20 pm-6:25 pm

2 stops32h 35m

$948

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sat 11/1

12:50 pm-8:45 pm

2 stops45h 25m

Patna

Sat 11/15

10:45 am-6:25 pm

2 stops43h 10m

$985

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 10/29

2:10 pm-10:20 am

3 stops33h 40m

Patna

Wed 11/5

10:50 am-7:55 am

3 stops32h 35m

$1,041

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 10/29

2:10 pm-9:40 am

3 stops33h 00m

Patna

Wed 11/5

10:40 am-7:55 am

2 stops32h 45m

$1,052

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 10/29

2:30 pm-10:00 pm

1 stop21h 00m

Patna

Wed 11/5

7:10 pm-8:52 pm

2 stops37h 12m

$1,065

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

$1,087

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sat 11/1

6:45 am-1:20 pm

2 stops44h 05m

Patna

Sat 11/15

10:40 pm-11:30 am

2 stops24h 20m

$1,126

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Tue 9/30

5:10 pm-7:55 am

2 stops28h 15m

Patna

Sat 10/4

6:20 pm-3:00 pm

2 stops31h 10m

$1,684

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Tue 9/30

5:10 pm-7:55 am

2 stops28h 15m

Patna

Sat 10/4

6:20 pm-3:00 pm

2 stops31h 10m

$1,795

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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.

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

Direct flights	None

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

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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 21h 00m.
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 September 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 $836	Free Cancellation	Rating 5.5 2,930 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.