Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Illinois to Patna from ₹ 86,909

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Patna departing on 14/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customie your results

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Illinois to Patna

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
17:50 - 12:45
ORD
-
PAT
32h 25m
2 stops
British Airways Logo
21:00 - 12:30
PAT
-
ORD
26h 00m
2 stops
₹ 127,172British Airways
Wed, 23 Sep - Sun, 27 Sep
British Airways Logo
21:00 - 12:45
ORD
-
PAT
29h 15m
2 stops
British Airways Logo
21:00 - 12:30
PAT
-
ORD
50h 00m
2 stops
₹ 149,228British Airways
Wed, 23 Sep - Sun, 27 Sep
Multiple Airlines Logo
06:15 - 21:10
ORD
-
PAT
28h 25m
2 stops
Multiple Airlines Logo
21:45 - 16:01
PAT
-
ORD
28h 46m
2 stops
₹ 314,974Multiple Airlines
Fri, 29 May - Fri, 12 Jun
Multiple Airlines Logo
15:35 - 09:40
ORD
-
PAT
31h 35m
2 stops
Multiple Airlines Logo
20:05 - 11:10
PAT
-
ORD
49h 35m
3 stops
₹ 434,450Multiple Airlines
Fri, 29 May - Fri, 12 Jun
Multiple Airlines Logo
13:10 - 12:30
ORD
-
PAT
36h 50m
1 stop
Multiple Airlines Logo
21:25 - 15:45
PAT
-
ORD
28h 50m
2 stops
₹ 505,497Multiple Airlines
Fri, 29 May - Fri, 12 Jun
British Airways Logo
19:05 - 20:25
ORD
-
PAT
38h 50m
2 stops
British Airways Logo
21:00 - 15:55
PAT
-
ORD
29h 25m
2 stops
₹ 773,450British Airways
Mon, 21 Sep - Thu, 24 Sep

British Airways flights from Illinois to Patna

Our best British Airways deals on Illinois to Patna flight tickets
British Airways
23 Sept
ORD17:50Chicago O'Hare Intl
32h 25m
2 stops
PAT12:45Patna
27 Sept
PAT21:00Patna
26h 00m
2 stops
ORD12:30Chicago O'Hare Intl
₹ 127,172
British Airways
23 Sept
ORD21:00Chicago O'Hare Intl
29h 15m
2 stops
PAT12:45Patna
27 Sept
PAT21:00Patna
50h 00m
2 stops
ORD12:30Chicago O'Hare Intl
₹ 149,228
British Airways
21 Sept
ORD19:05Chicago O'Hare Intl
38h 50m
2 stops
PAT20:25Patna
24 Sept
PAT21:00Patna
29h 25m
2 stops
ORD15:55Chicago O'Hare Intl
₹ 773,450

Air India flights from Illinois to Patna

Our best Air India deals on Illinois to Patna flight tickets
Air India
7 Apr
ORD07:45Chicago O'Hare Intl
36h 45m
2 stops
PAT07:00Patna
9 Apr
PAT10:20Patna
45h 54m
2 stops
ORD21:44Chicago O'Hare Intl
₹ 196,248
Air India
1 Apr
ORD13:15Chicago O'Hare Intl
36h 45m
1 stop
PAT12:30Patna
8 Apr
PAT21:45Patna
34h 29m
2 stops
ORD21:44Chicago O'Hare Intl
₹ 292,355
Air India
6 Apr
ORD13:15Chicago O'Hare Intl
21h 25m
1 stop
PAT21:10Patna
9 Apr
PAT13:25Patna
32h 20m
1 stop
ORD11:15Chicago O'Hare Intl
₹ 298,925

momondo Fare Finder

 
Customise 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, momondo users made 59,053 searches. Data last updated 31 March 2026.
Use the filters below to find and compare flights from Illinois to Patna that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 23/9

17:50-12:45

2 stops32h 25m

Patna

Sun 27/9

21:00-12:30

2 stops26h 00m

₹ 127,172

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 23/9

21:00-12:45

2 stops29h 15m

Patna

Sun 27/9

21:00-12:30

2 stops50h 00m

₹ 149,228
Fastest return journey

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Fri 29/5

06:15-21:10

2 stops28h 25m

Patna

Fri 12/6

21:45-16:01

2 stops28h 46m

₹ 314,974

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Fri 29/5

15:35-09:40

2 stops31h 35m

Patna

Fri 12/6

20:05-11:10

3 stops49h 35m

₹ 434,450

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Fri 29/5

13:10-12:30

1 stop36h 50m

Patna

Fri 12/6

21:25-15:45

2 stops28h 50m

₹ 505,497

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 21/9

19:05-20:25

2 stops38h 50m

Patna

Thu 24/9

21:00-15:55

2 stops29h 25m

₹ 773,450
Cheapest one-way
Fastest single journey

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Tue 14/4

17:10-07:55

2 stops28h 15m

₹ 86,909

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Patna from

How to get the cheapest flight ticket from Illinois to Patna

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Illinois to Patna?

Air France is the most popular carrier operating from Illinois to Patna

Cheap Illinois to Patna flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Patna

Fastest flight time

29h 15m

Direct flights

None
The fastest flight from Illinois to Patna takes 29h 15m
There are no direct flights from Illinois to Patna. There are no popular flight routes from Illinois to Patna.
Search flight deals

  • When did momondo last update prices for flights from Illinois to Patna Airport?

    Prices for flights from Illinois to Patna Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Illinois to Patna Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Patna Airport.

  • What documentation or ID do you need to fly to Patna Airport?

    The necessary travel and health documents for your Patna Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Patna?

Finding the right flight to Patna from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Patna quick and easy, saving you time and money.

Can I find flights from Illinois to Patna with flexible booking policies on momondo?

Flights from Illinois to Patna with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Illinois to Patna?

Once all potential Illinois to Patna flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Illinois to Patna right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Illinois to Patna flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Patna trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 30/4
Thu 7/5
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to India

Airports servicing Bihar

Gaya Airport