HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Patna

$722+ Cheap flights from Chicago (CHI) to Patna (PAT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — PAT
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago to Patna with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Chicago to Patna

Cheapest flights from Chicago to Patna
Explore the most affordable flight options available from Chicago to Patna. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This oojo deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/241:30 pmORD - PAT
1 stop32h 40mAir India
Wed 1/218:25 pmPAT - ORD
2 stops34h 41mAir India
Deal found 12/22$1,694
This CheapOair deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/221:30 pmORD - PAT
1 stop35h 35mAir India
Mon 12/298:20 pmPAT - ORD
3 stops50h 40mAir India
Deal found 12/21$2,662
This CheapOair deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/221:30 pmORD - PAT
1 stop34h 10mMultiple Airlines
Mon 12/2910:25 amPAT - ORD
2 stops32h 40mMultiple Airlines
Deal found 12/21$3,343

Find flight deals from Chicago to Patna

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Patna (PAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$722
(Indian Eagle)
Provider with most accurate pricing for Chicago (CHI)-Patna flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Patna flights.
Search Deals
From Chicago (CHI) to Patna
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Chicago to Patna that are best for you.

Fly from

Chicago

Fly to

Patna

Route

Depart

Return

Price

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 3/2

1:30 pm-9:40 am

1 stop32h 40m

Patna

Sat 3/14

8:55 pm-12:30 pm

2 stops26h 05m

$722

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 2/4

1:30 pm-2:40 pm

1 stop37h 40m

Patna

Mon 2/16

9:10 am-11:30 am

3 stops61h 50m

$938

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 2/4

8:20 pm-11:15 am

2 stops27h 25m

Patna

Mon 2/16

11:10 pm-6:25 pm

2 stops30h 45m

$966

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 3/2

1:30 pm-9:40 am

1 stop32h 40m

Patna

Sat 3/14

7:10 pm-3:45 pm

2 stops31h 05m

$1,480

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Compare providers for flights from Chicago to Patna

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Patna in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-Patna flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chicago-Patna flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Chicago-Patna flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Patna flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Patna flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chicago to Patna

Have a flexible travel schedule? Discover the best time to fly to Patna from Chicago with our price prediction graph.
Estimated round-trip 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 Chicago to Patna
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Patna

Get insights into the airlines that provide service to Patna. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Patna. Reviews last updated December 23, 2025.
Get a feel of what it's like to fly with Air India from Chicago to Patna by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air India
5.5
Fair
2,954 reviews

Entertainment

4.6

Boarding

6.2

Food

5.8

Comfort

5.5

Crew

6.6

Overall

5.5

Reviews

1 / 20
6.0
Good

Anonymous,Sep 2024

SFO - DEL

It wasn't what I expected. The aircraft was falling apart literally. Was dirty, the tv didn't work,food was horrible, my trip was delayed 20 hours at the Last minute. I would not travel with air India any more
Air India
5.5
Fair
2,954 reviews
Air India
5.5
Fair
2,954 reviews

Entertainment

4.6

Boarding

6.2

Food

5.8

Comfort

5.5

Crew

6.6

Overall

5.5

Reviews

1 / 20
6.0
Good

Anonymous,Sep 2024

SFO - DEL

It wasn't what I expected. The aircraft was falling apart literally. Was dirty, the tv didn't work,food was horrible, my trip was delayed 20 hours at the Last minute. I would not travel with air India any more

Related info for your journey

Find useful and relevant information for your journey from Chicago 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 Chicago?

    For a flight from Chicago to Patna, you will be flying into Patna. Patna (PAT) is just 1.8 mi from the center of the city. Patna is the only Patna airport and it handles 0 inbound flights from Chicago per day. 1 airline has flights to Patna from Chicago on a regular basis.

  • How long is the flight from Chicago to Patna?

    A quick flight from Chicago to Patna can take about 27h 25m. Air India provides one of the quickest options available for as low as $966. The distance from Chicago to Patna is about 7741 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Chicago to Patna round-trip?

    Air India, at $801, was found to be the cheapest airline from Chicago to Patna..

  • Can I find deals for flights from Chicago to Patna that include hotel bookings?

    Yes. In addition to deals on Chicago to Patna flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Patna?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Patna.

  • Can I find deals for business class flights from Chicago to Patna?

    Yes. Cheapflights offers flight deals from Chicago 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chicago to Patna

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Patna flights

Top airline flying from Chicago to Patna

Discover the top airline that operate flights from Chicago to Patna. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$801Average$1,101FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.