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Patna

$491+ Cheap flights from Illinois to Patna (PAT)

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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PAT
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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Cheap flight deals from Illinois to Patna

Keep the following information in mind while searching for Illinois to Patna flight deals. Data was last updated June 18, 2025.

Round-trip from

$992
(Trip.com)

One-way from

$491
(Flightnetwork)
From Illinois to Patna
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One-way flight from Illinois to Patna
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Find flight deals from Illinois to Patna

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 June 18, 2025.

This Trip.com deal was found by Cheapflights users on 6/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/112:00 pmORD - PAT
1 stop19h 55mAir India
Sat 11/1510:40 pmPAT - ORD
1 stop19h 20mAir India
Deal found 6/18$992
This Trip.com deal was found by Cheapflights users on 6/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/19:20 pmORD - PAT
2 stops33h 50mMultiple Airlines
Sat 11/156:20 pmPAT - ORD
2 stops35h 35mMultiple Airlines
Deal found 6/18$1,095

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois 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 June 18, 2025.
Use the filters below to find and compare flights from Illinois to Patna that are best for you.

Fly from

Illinois

Fly to

Patna

Route

Depart

Return

Price

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sat 11/1

12:00 pm-6:25 pm

1 stop19h 55m

Patna

Sat 11/15

10:40 pm-6:30 am

1 stop19h 20m

$992

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Sat 11/1

9:20 pm-5:40 pm

2 stops33h 50m

Patna

Sat 11/15

6:20 pm-6:25 pm

2 stops35h 35m

$1,095

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Fri 8/1

12:15 pm-6:25 pm

1 stop19h 40m

$491

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Fri 7/25

5:01 am-5:40 pm

3 stops50h 09m

$543

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/17

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.
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 Illinois to Patna

Rainfall in Patna by month

Plan your trip to Patna by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Patna ranges from 0.3 - 12.6 inches per month. July is typically the wettest month, when rainfall can reach 12.6 in. November is typically the driest time to visit Patna when rainfall is around 0.3 in.

Temperature in Patna by month

Plan your trip to Patna by taking into account the average temperature totals by month.

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 89.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 60.8 F).

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 June 18, 2025.
Air India
5.5
Fair
2,915 reviews

Food

5.8

Crew

6.6

Entertainment

4.6

Comfort

5.5

Boarding

6.2

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
2,915 reviews
Air India
5.5
Fair
2,915 reviews

Food

5.8

Crew

6.6

Entertainment

4.6

Comfort

5.5

Boarding

6.2

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 Illinois 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 Illinois?

    If you book a flight to Patna from Illinois, you will be flying to Patna, which is the city’s only airport. Patna (PAT) is located 1.8 mi from the center of Patna.

  • 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 vacation 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

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Top airline flying from Illinois to Patna

Discover the top airline that operate flights from Illinois 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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$836Average$1,169FlexibilityNo cancel feeOn-timeN/A

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