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Cheap flights from Chicago to Patna from ₹ 61,368

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — PAT
9 Apr — 16 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Chicago to Patna

Enter your travel dates to find the best prices.

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 10 March 2026.

Thu 10/917:50
ORD
-
PAT
2 stops32h 25m
British Airways
Mon 14/918:35
PAT
-
ORD
2 stops28h 25m
British Airways
Deal found 5/3₹ 109,744

Cheapflights Fare Finder

 
Customise 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 454,620 searches. Data last updated 10 March 2026.
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

Cheapest one-way
Fastest single journey

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sun 15/3

20:05-07:55

2 stops25h 20m

₹ 61,368

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sun 15/3

12:50-20:45

3 stops45h 25m

₹ 68,740

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sun 15/3

14:30-09:40

1 stop32h 40m

₹ 88,182

Flights are sorted by cheapest return flights first.

Deals found on 10/3

Sorted by cheapest first

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 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 Chicago to Patna
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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?

    Most people fly into Patna (PAT) if they book a flight to Patna from Chicago. On average, Patna has 0 inbound flights from Chicago per day from 0 airlines. Patna is conveniently located just 3.0 km from Patna’s city centre.

  • 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 holiday 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.

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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

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

Cheapflights makes it easy to find Chicago to Patna flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Chicago to Patna for you. Better yet — we are completely free to use.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Chicago to Patna, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Chicago to Patna flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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