Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Chicago to Patna from $555

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Patna departing on 12/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Chicago to Patna

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air India Logo
1:30 pm - 12:30 pmORD-PAT
35h 30m2 stops
Air India Logo
4:10 pm - 9:33 pmPAT-ORD
40h 53m2 stops
$996Air India
Find Deal
Wed, Feb 4 - Mon, Feb 16
Air India Logo
1:30 pm - 12:30 pmORD-PAT
35h 30m2 stops
Air India Logo
4:45 pm - 11:30 amPAT-ORD
54h 15m3 stops
$997Air India
Find Deal
Wed, Feb 4 - Mon, Feb 16
Air India Logo
1:30 pm - 10:05 amORD-PAT
33h 05m1 stop
Air India Logo
4:45 pm - 11:30 amPAT-ORD
54h 15m3 stops
$1,002Air India
Find Deal
Wed, Feb 4 - Mon, Feb 16
Air India Logo
1:30 pm - 12:30 pmORD-PAT
35h 30m2 stops
Air India Logo
4:45 pm - 11:30 amPAT-ORD
54h 15m3 stops
$1,008Air India
Find Deal
Wed, Feb 4 - Mon, Feb 16
Air India Logo
1:30 pm - 10:05 amORD-PAT
33h 05m1 stop
Air India Logo
4:45 pm - 11:30 amPAT-ORD
54h 15m3 stops
$1,013Air India
Find Deal
Wed, Feb 4 - Mon, Feb 16
Air India Logo
1:30 pm - 2:40 pmORD-PAT
37h 40m1 stop
Air India Logo
4:10 pm - 9:33 pmPAT-ORD
40h 53m2 stops
$1,070Air India
Find Deal
Wed, Feb 4 - Mon, Feb 16
Air India Logo
1:30 pm - 2:40 pmORD-PAT
37h 40m1 stop
Air India Logo
4:10 pm - 9:33 pmPAT-ORD
40h 53m2 stops
$1,081Air India
Find Deal
Wed, Feb 4 - Mon, Feb 16
Air India Logo
6:45 am - 8:25 pmORD-PAT
27h 10m2 stops
Air India Logo
4:10 pm - 11:30 amPAT-ORD
30h 50m3 stops
$1,166Air India
Find Deal
Sat, Nov 1 - Sun, Nov 16
Multiple Airlines Logo
1:10 pm - 8:25 amORD-PAT
31h 45m3 stops
Multiple Airlines Logo
8:15 pm - 8:00 pmPAT-ORD
35h 15m2 stops
$1,705Multiple Airlines
Find Deal
Wed, Dec 24 - Wed, Jan 21
Air France Logo
5:10 pm - 7:55 amORD-PAT
28h 15m2 stops
Air France Logo
8:25 pm - 3:00 pmPAT-ORD
29h 05m2 stops
$2,027Air France
Find Deal
Mon, Apr 13 - Wed, Apr 15

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
35h 30m
2 stops
PAT12:30 pmPatna
Feb 16
PAT4:10 pmPatna
40h 53m
2 stops
ORD9:33 pmChicago O'Hare Intl
$996
Find similar
Air India
Feb 4
ORD1:30 pmChicago O'Hare Intl
35h 30m
2 stops
PAT12:30 pmPatna
Feb 16
PAT4:45 pmPatna
54h 15m
3 stops
ORD11:30 amChicago O'Hare Intl
$997
Find similar
Air India
Feb 4
ORD1:30 pmChicago O'Hare Intl
33h 05m
1 stop
PAT10:05 amPatna
Feb 16
PAT4:45 pmPatna
54h 15m
3 stops
ORD11:30 amChicago O'Hare Intl
$1,002
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago 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, momondo users made 832,500 searches. Data last updated October 16, 2025.
Use the filters below to find and compare flights from Chicago to Patna that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 2/4

1:30 pm-12:30 pm

2 stops35h 30m

Patna

Mon 2/16

4:10 pm-9:33 pm

2 stops40h 53m

$996

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

$997

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

$1,002

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

$1,008

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

$1,013

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 2/4

1:30 pm-2:40 pm

1 stop37h 40m

Patna

Mon 2/16

4:10 pm-9:33 pm

2 stops40h 53m

$1,070

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 2/4

1:30 pm-2:40 pm

1 stop37h 40m

Patna

Mon 2/16

4:10 pm-9:33 pm

2 stops40h 53m

$1,081

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sat 11/1

6:45 am-8:25 pm

2 stops27h 10m

Patna

Sun 11/16

4:10 pm-11:30 am

3 stops30h 50m

$1,166

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 12/24

1:10 pm-8:25 am

3 stops31h 45m

Patna

Wed 1/21

8:15 pm-8:00 pm

2 stops35h 15m

$1,705

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 4/13

5:10 pm-7:55 am

2 stops28h 15m

Patna

Wed 4/15

8:25 pm-3:00 pm

2 stops29h 05m

$2,027

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

See travel insights to Patna from

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

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 41% 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

Direct flights

None
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 20h 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?

  • 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?

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 IndiaPriceFrom $854Free CancellationRating
5.5
2,937 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.

An easier way to manage your Patna trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 11/15
Sat 11/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to India

Airports servicing Bihar

Gaya Airport