How long is the flight from Illinois to Patna?

There are many flights that can get you from Illinois to Patna in 48h 10m. Fly via British Airways or Malaysia Airlines to get the fastest option. Airlines will cover a distance of 12458 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in Patna ranges from 7.0 - 319.0 inches per month. July is typically the wettest month, when rainfall can reach 319.0 mm. December is typically the driest time to visit Patna when rainfall is around 7.0 mm.

If weather is an important factor for your trip to Patna, use this chart to help with planning. For those seeking warmer temperatures, May is the ideal time of year to visit, when temperatures reach an average of 32.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 16.0 C).

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

When flying from Illinois to Patna, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to Patna from Illinois?

For a flight from Illinois to Patna, you will be flying into Patna. Patna (PAT) is just 3.0 km from the centre of the city.

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

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

How can I find direct flights from Illinois to Patna?

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

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

Yes. Cheapflights offers flight deals from Illinois 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.

₹ 73,334+ Cheap Flights from Illinois to Patna

Cheap flight deals from Illinois to Patna

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Illinois to Patna
Explore the most affordable flight options available from Illinois to Patna. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 September 2026.

Wed 23/922:25 -

2 stops27h 50m

Sun 27/915:50 -

2 stops35h 55m

Deal found 20/9₹ 227,969

Thu 24/1221:50 -

2 stops53h 50m

Thu 31/1212:10 -

2 stops37h 50m

Deal found 18/9₹ 233,057

Fri 13/1121:50 -

2 stops48h 10m

Sat 21/1117:40 -

2 stops36h 35m

Deal found 18/9₹ 734,493

Thu 17/922:25 -

2 stops30h 20m

Mon 21/918:35 -

2 stops28h 20m

Deal found 16/9₹ 812,722

Fri 13/1118:50 -

3 stops51h 10m

Sat 21/1115:40 -

3 stops51h 20m

Deal found 18/9₹ 1,935,099

Find flight deals from Illinois to Patna

Round-trip from	₹ 139,469
One-way from	₹ 73,334

British Airways
20/1-31/1
4 total stops
63h 15m total
Illinois to Patna

Search Deals

30/11-31/12
2 total stops
50h 20m total
Illinois to Patna

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoPatna

ORD Chicago O'Hare Intl - PAT Patna

ORDPAT

Chicago O'Hare Intl

Mon 30/11

21:50-11:40

2 stops50h 20m

Patna

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 73,334

Fastest return journey

ChicagoPatna

ORD Chicago O'Hare Intl - PAT Patna

ORDPAT

Chicago O'Hare Intl

Wed 25/11

18:00-11:40

2 stops30h 10m

Patna

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 76,982

ChicagoPatna

ORD Chicago O'Hare Intl - PAT Patna

ORDPAT

Chicago O'Hare Intl

Mon 30/11

22:40-12:40

3 stops50h 30m

Patna

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 118,448

ChicagoPatna

ORD Chicago O'Hare Intl - PAT Patna

ORDPAT

Chicago O'Hare Intl

Sun 31/1

21:50-09:30

2 stops48h 10m

Patna

Sun 14/2

20:25-19:15

2 stops34h 20m

₹ 139,469

ChicagoPatna

ORD Chicago O'Hare Intl - PAT Patna

ORDPAT

Chicago O'Hare Intl

Wed 20/1

13:10-12:05

3 stops35h 25m

Patna

Sun 31/1

12:40-07:55

2 stops30h 45m

₹ 146,572

ChicagoPatna

ORD Chicago O'Hare Intl - PAT Patna

ORDPAT

Chicago O'Hare Intl

Wed 25/11

21:35-09:30

3 stops72h 25m

Patna

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 164,138

ChicagoPatna

ORD Chicago O'Hare Intl - PAT Patna

ORDPAT

Chicago O'Hare Intl

Sun 31/1

13:10-12:05

3 stops35h 25m

Patna

Sun 14/2

13:15-18:20

2 stops40h 35m

₹ 221,634

ChicagoPatna

ORD Chicago O'Hare Intl - PAT Patna

ORDPAT

Chicago O'Hare Intl

Thu 24/12

21:50-15:10

2 stops53h 50m

Patna

Thu 31/12

12:10-14:30

2 stops37h 50m

₹ 233,057

ChicagoPatna

ORD Chicago O'Hare Intl - PAT Patna

ORDPAT

Chicago O'Hare Intl

Sun 31/1

18:50-08:00

3 stops49h 40m

Patna

Sun 14/2

17:40-07:30

3 stops49h 20m

₹ 271,835

ChicagoPatna

ORD Chicago O'Hare Intl - PAT Patna

ORDPAT

Chicago O'Hare Intl

Wed 20/1

18:50-19:45

3 stops37h 25m

Patna

Sun 31/1

17:40-07:30

3 stops49h 20m

₹ 305,335

Flights are sorted by cheapest return flights first.

Deals found on 21/9

Showing 1-10 of 12 resultsSorted by cheapest first

Best time to book a flight from Illinois to Patna

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

ORD-PAT

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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Patna

USIL-PAT

ORD-PAT

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly into for flights to Patna from Illinois?
For a flight from Illinois to Patna, you will be flying into Patna. Patna (PAT) is just 3.0 km from the centre of the city.
How long is the flight from Illinois to Patna?
There are many flights that can get you from Illinois to Patna in 48h 10m. Fly via British Airways or Malaysia Airlines to get the fastest option. Airlines will cover a distance of 12458 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
Can I find deals for flights from Illinois to Patna that include hotel bookings?
Yes. In addition to deals on Illinois to Patna flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Illinois to Patna?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Patna.
Can I find deals for business class flights from Illinois to Patna?
Yes. Cheapflights offers flight deals from Illinois 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

Alternative routes

Direct flights to Bihar

Flights by cabin class

Other flight options

Patna flight routes

Popular flights

Alternative routes for Illinois to Patna

John F Kennedy Intl to Patna flights

Newark to Patna flights

San Francisco to Patna flights

Dulles Intl to Patna flights

San Francisco to Gaya flights

Reagan-National to Patna flights

O'Hare Intl to Patna flights

Dulles Intl to Gaya flights

Cincinnati to Patna flights

Baltimore to Gaya flights

Atlanta to Patna flights

Los Angeles to Patna flights

San Diego to Patna flights

Louisville to Patna flights

Fly with Cheapflights

How does Cheapflights help users find flights from Illinois to Patna?

Cheapflights helps you search for flights from Illinois to Patna via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Illinois to Patna?

Cheapflights helps you find that perfect flight to Patna from Illinois by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Illinois to Patna with no change fees?

Need flexible booking options for your flight to Patna from Illinois? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Illinois to Patna become cheaper?

Not ready to book yet? You can track prices for flights from Illinois to Patna on Cheapflights with our Price Alert feature and get notified when better prices are available.

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.

Cheap flights from Illinois to Patna from ₹ 73,334

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Illinois to Patna

Cheapest flights from Illinois to PatnaExplore the most affordable flight options available from Illinois to Patna. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 September 2026.

Explore the most affordable flight options available from Illinois to Patna. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 September 2026.

Best flights from Illinois to PatnaDiscover carefully curated flight deals from Illinois to Patna that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.

Discover carefully curated flight deals from Illinois to Patna that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.

Last-minute flights from Illinois to PatnaDiscover last-minute flight deals from Illinois to Patna. Data last updated 21 September 2026 and is based on user searches.

Discover last-minute flight deals from Illinois to Patna. Data last updated 21 September 2026 and is based on user searches.

One-way flights from Illinois to PatnaSearch for one-way flight options from Illinois to Patna. Find affordable one-way fares based on user searches. Data last updated 21 September 2026.

Search for one-way flight options from Illinois to Patna. Find affordable one-way fares based on user searches. Data last updated 21 September 2026.

Find flight deals from Illinois to Patna

Round-trip from

One-way from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Patna that are best for you.

Best time to book a flight from Illinois to Patna

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

Cheapflights Insights

Related info for your journey

What airport do you fly into for flights to Patna from Illinois?

How long is the flight from Illinois to Patna?

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

How can I find direct flights from Illinois to Patna?

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

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 Illinois to Patna

See prices for flight routes from nearby airports that may be better suited for you.

Direct flights to Bihar

Book a non-stop flight to one of these other cities located in Bihar.

Search flights from Illinois to Patna by cabin class

Find flights from Illinois to Patna, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Illinois and Patna flights

Browse other Illinois and Patna flight options. Last updated on 21 September 2026.

Other flights to Patna

Explore flights to Patna departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 21 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

How does Cheapflights help users find flights from Illinois to Patna?

Why should you use Cheapflights to find cheap flight tickets from Illinois to Patna?

Can Cheapflights find flights from Illinois to Patna with no change fees?

Can Cheapflights notify me if prices for flights from Illinois to Patna become cheaper?

100% Free

Book With Flexibility

Travel Smart

Cheapest flights from Illinois to Patna
Explore the most affordable flight options available from Illinois to Patna. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 September 2026.

Best flights from Illinois to Patna
Discover carefully curated flight deals from Illinois to Patna that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.

Last-minute flights from Illinois to Patna
Discover last-minute flight deals from Illinois to Patna. Data last updated 21 September 2026 and is based on user searches.

One-way flights from Illinois to Patna
Search for one-way flight options from Illinois to Patna. Find affordable one-way fares based on user searches. Data last updated 21 September 2026.