$470 Cheap Flights from Patna (PAT) to Chicago (ORD)

View $470 flight on Thu, Nov 6, 2025Opens in a new window

Popular airlines from Patna (PAT) to Chicago O'Hare Intl. Airport (ORD)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Patna to Chicago (PAT-ORD)

Prices were available within the past 7 days and start at $470 for one-way flights and $1,096 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air India
Mon, Dec 8 - Fri, Jan 30
PAT
Patna
ORD
Chicago
$1,096 Roundtrip, found 4 days ago
$1,096
Roundtrip
found 4 days ago
Select Air India flight, departing Mon, Dec 8 from Patna to Chicago, returning Fri, Jan 30, priced at $1,096 found 4 days ago
Air India
Mon, Dec 8 - Fri, Jan 30
PAT
Patna
ORD
Chicago
$1,109 Roundtrip, found 4 days ago
$1,109
Roundtrip
found 4 days ago
Select Air India flight, departing Mon, Dec 8 from Patna to Chicago, returning Fri, Jan 30, priced at $1,109 found 4 days ago
Air India
Mon, Dec 1 - Mon, Dec 8
PAT
Patna
ORD
Chicago
$1,140 Roundtrip, found 6 days ago
$1,140
Roundtrip
found 6 days ago
Select Air India flight, departing Mon, Dec 1 from Patna to Chicago, returning Mon, Dec 8, priced at $1,140 found 6 days ago
Air India
Mon, Dec 8 - Fri, Jan 30
PAT
Patna
ORD
Chicago
$1,148 Roundtrip, found 4 days ago
$1,148
Roundtrip
found 4 days ago
Select Air India flight, departing Mon, Dec 8 from Patna to Chicago, returning Fri, Jan 30, priced at $1,148 found 4 days ago
Air India
Mon, Dec 1 - Mon, Dec 8
PAT
Patna
ORD
Chicago
$1,167 Roundtrip, found 6 days ago
$1,167
Roundtrip
found 6 days ago
Select Air India flight, departing Mon, Dec 1 from Patna to Chicago, returning Mon, Dec 8, priced at $1,167 found 6 days ago
Air India
Mon, Dec 1 - Mon, Dec 8
PAT
Patna
ORD
Chicago
$1,175 Roundtrip, found 6 days ago
$1,175
Roundtrip
found 6 days ago
Select Air India flight, departing Mon, Dec 1 from Patna to Chicago, returning Mon, Dec 8, priced at $1,175 found 6 days ago
Air India
Mon, Dec 1 - Mon, Dec 8
PAT
Patna
ORD
Chicago
$1,200 Roundtrip, found 6 days ago
$1,200
Roundtrip
found 6 days ago
Select Air India flight, departing Mon, Dec 1 from Patna to Chicago, returning Mon, Dec 8, priced at $1,200 found 6 days ago
Air India
Sun, Dec 7 - Fri, Jan 16
PAT
Patna
ORD
Chicago
$1,210 Roundtrip, found 1 day ago
$1,210
Roundtrip
found 1 day ago
Select Air India flight, departing Sun, Dec 7 from Patna to Chicago, returning Fri, Jan 16, priced at $1,210 found 1 day ago
SpiceJet
Mon, Dec 8 - Fri, Jan 30
PAT
Patna
ORD
Chicago
$1,241 Roundtrip, found 4 days ago
$1,241
Roundtrip
found 4 days ago
Select SpiceJet flight, departing Mon, Dec 8 from Patna to Chicago, returning Fri, Jan 30, priced at $1,241 found 4 days ago
Air France
Mon, Dec 29 - Thu, Jan 22
PAT
Patna
ORD
Chicago
$1,946 Roundtrip, found 5 days ago
$1,946
Roundtrip
found 5 days ago
Select Air France flight, departing Mon, Dec 29 from Patna to Chicago, returning Thu, Jan 22, priced at $1,946 found 5 days ago

Frequently asked questions

How much does a flight from Patna Airport (PAT) to O'Hare Intl. Airport (ORD) cost?
Lock in a cheap one-way flight from $470 or cheap return flight from $1,096 from Patna Airport (PAT) to O'Hare Intl. Airport (ORD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Patna Airport (PAT) to O'Hare Intl. Airport (ORD)?
The cheapest month to fly from PAT to ORD is December, when there's less demand. Off-peak months are typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Patna Airport (PAT) to O'Hare Intl. Airport (ORD)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest PAT to ORD flight.
How many flights per day from Patna Airport (PAT) to O'Hare Intl. Airport (ORD)?
There aren't any daily nonstop flights departing from Patna Airport (PAT) to O'Hare Intl. Airport (ORD). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way in no time.
What day of the week has the most flights from PAT to ORD?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary based on a number of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Patna Airport (PAT) to O'Hare Intl. Airport (ORD)?
Choose a flight from Patna Airport (PAT) to O'Hare Intl. Airport (ORD) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Patna Airport (PAT) to O'Hare Intl. Airport (ORD) last-minute?
Holding off until right before your break to book your flight from PAT to ORD generally means paying more. While you may come across some last-minute offers, they aren't always guaranteed. Keep your travel schedule open to boost your chances of landing a bargain.
Is it cheaper to book a PAT to ORD flight and hotel package?
You'll typically save money by securing a PAT to ORD flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've selected your ideal accommodations and flights, consider adding extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Patna Airport (PAT) to O'Hare Intl. Airport (ORD)?
In most instances, you're able to reschedule or cancel your PAT to ORD flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you need further details, go to our Customer Service portal.

Travel information

Origin airport
Patna
Destination airport
O'Hare Intl.
Airlines serving
Air India
Roundtrip price
$1,096
Distance
7746 mi

Book with confidence

Patna to Chicago Flights

The cheapest times to fly from Patna to Chicago

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Patna to Chicago are during the month of December. You can find some of the cheapest flights from Patna to Chicago with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Patna to Chicago

Sunday is one of the best days to book for cheap flights from Patna to Chicago: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Patna to Chicago

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Patna to Chicago in 2025. You can also book with separate airlines for your outbound and return journeys, from $470 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Patna to Chicago flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Patna to Chicago airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Patna to Chicago Flights

Explore a world of travel with Expedia

*Available to One Key members.