In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

What is the cheapest time of day to fly from PAT to ORD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Patna to Chicago O'Hare Intl Airport as you normally would.

What airport do you fly from for flights from Patna to Chicago O'Hare Intl?

Patna (PAT), located 3.0 km from the city centre, is the airport you fly out of when you book flights from Patna to Chicago O'Hare Intl. 0 airlines have flights from Patna to Chicago O'Hare Intl on a regular basis. Booking flights from Patna to Chicago O'Hare Intl should not be difficult; the airport handles an average of 0 outbound flights to Chicago O'Hare Intl per day.

Can I find deals for flights from Patna to O'Hare Intl that include hotel bookings?

Yes. In addition to deals on Patna to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Patna to O'Hare Intl?

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

Can I find deals for business class flights from Patna to O'Hare Intl?

Yes. Cheapflights offers flight deals from Patna to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

₹ 58,198+ Cheap Flights from Patna to Chicago O'Hare Intl Airport

Cheap flight deals from Patna to O'Hare Intl

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Cheapest flights from Patna to O'Hare Intl
Explore the most affordable flight options available from Patna to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 November 2026.

Thu 24/1215:45 -

2 stops39h 40m

Thu 31/1221:50 -

2 stops26h 20m

Deal found 9/11₹ 135,982

Find flight deals from Patna to O'Hare Intl

Round-trip from	₹ 135,982
One-way from	₹ 58,198

24/12-31/12
4 total stops
66h 00m total
Patna to Chicago

Search Deals

8/12-31/12
3 total stops
39h 50m total
Patna to Chicago

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Patna to Chicago O'Hare Intl Airport that are best for you.

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Route

Depart

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Price

Cheapest return flight

PatnaChicago

PAT Patna - ORD Chicago O'Hare Intl

PATORD

Patna

Wed 9/12

23:15-21:29

3 stops33h 44m

Chicago O'Hare Intl

Wed 31/12

00:00-11:30

Nonstop0h 00m

₹ 60,072

PatnaChicago

PAT Patna - ORD Chicago O'Hare Intl

PATORD

Patna

Mon 7/12

21:00-07:35

2 stops46h 05m

Chicago O'Hare Intl

Wed 31/12

00:00-11:30

Nonstop0h 00m

₹ 69,912

Fastest return journey

PatnaChicago

PAT Patna - ORD Chicago O'Hare Intl

PATORD

Patna

Tue 8/12

21:00-14:30

2 stops29h 00m

Chicago O'Hare Intl

Wed 31/12

00:00-11:30

Nonstop0h 00m

₹ 69,912

PatnaChicago

PAT Patna - ORD Chicago O'Hare Intl

PATORD

Patna

Fri 25/12

23:15-15:10

2 stops51h 25m

Chicago O'Hare Intl

Wed 31/12

00:00-11:30

Nonstop0h 00m

₹ 115,177

PatnaChicago

PAT Patna - ORD Chicago O'Hare Intl

PATORD

Patna

Thu 24/12

15:45-19:55

2 stops39h 40m

Chicago O'Hare Intl

Thu 31/12

21:50-11:40

2 stops26h 20m

₹ 135,982

PatnaChicago

PAT Patna - ORD Chicago O'Hare Intl

PATORD

Patna

Fri 25/12

17:40-07:30

3 stops49h 20m

Chicago O'Hare Intl

Wed 31/12

00:00-11:30

Nonstop0h 00m

₹ 223,232

Flights are sorted by cheapest return flights first.

Deals found on 11/11

Sorted by cheapest first

Best time to book a flight from Patna to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Patna with our price prediction graph.

PAT-ORD

Estimated return 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.

Related info for your journey

What airport do you fly from for flights from Patna to Chicago O'Hare Intl?
Patna (PAT), located 3.0 km from the city centre, is the airport you fly out of when you book flights from Patna to Chicago O'Hare Intl. 0 airlines have flights from Patna to Chicago O'Hare Intl on a regular basis. Booking flights from Patna to Chicago O'Hare Intl should not be difficult; the airport handles an average of 0 outbound flights to Chicago O'Hare Intl per day.
Can I find deals for flights from Patna to O'Hare Intl that include hotel bookings?
Yes. In addition to deals on Patna to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Patna to O'Hare Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Patna to O'Hare Intl.
Can I find deals for business class flights from Patna to O'Hare Intl?
Yes. Cheapflights offers flight deals from Patna to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Cheap flights from Patna to Chicago O'Hare Intl Airport from ₹ 58,198

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Patna to O'Hare Intl

Cheapest flights from Patna to O'Hare IntlExplore the most affordable flight options available from Patna to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 November 2026.

Explore the most affordable flight options available from Patna to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 November 2026.

Best flights from Patna to O'Hare IntlDiscover carefully curated flight deals from Patna to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 November 2026.

Discover carefully curated flight deals from Patna to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 November 2026.

Last-minute flights from Patna to O'Hare IntlDiscover last-minute flight deals from Patna to O'Hare Intl. Data last updated 12 November 2026 and is based on user searches.

Discover last-minute flight deals from Patna to O'Hare Intl. Data last updated 12 November 2026 and is based on user searches.

One-way flights from Patna to O'Hare IntlSearch for one-way flight options from Patna to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 12 November 2026.

Search for one-way flight options from Patna to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 12 November 2026.

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Best time to book a flight from Patna to O'Hare Intl

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Related info for your journey

What airport do you fly from for flights from Patna to Chicago O'Hare Intl?

Can I find deals for flights from Patna to O'Hare Intl that include hotel bookings?

How can I find direct flights from Patna to O'Hare Intl?

Can I find deals for business class flights from Patna to O'Hare Intl?

Travelling to a place near Chicago O'Hare Intl Airport?

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Why should you use Cheapflights to find cheap flight tickets from Patna to O'Hare Intl?

Can Cheapflights find flights from Patna to O'Hare Intl with no change fees?

Can Cheapflights notify me if prices for flights from Patna to O'Hare Intl become cheaper?

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Cheapest flights from Patna to O'Hare Intl
Explore the most affordable flight options available from Patna to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 November 2026.

Best flights from Patna to O'Hare Intl
Discover carefully curated flight deals from Patna to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 November 2026.

Last-minute flights from Patna to O'Hare Intl
Discover last-minute flight deals from Patna to O'Hare Intl. Data last updated 12 November 2026 and is based on user searches.

One-way flights from Patna to O'Hare Intl
Search for one-way flight options from Patna to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 12 November 2026.