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Cheap flights from Illinois to Patna from ₹ 55,616

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 17/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Illinois to Patna

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
18:50 - 17:40
ORD
-
PAT
36h 20m
2 stops
Multiple Airlines Logo
23:10 - 14:30
PAT
-
ORD
50h 50m
2 stops
₹ 97,999Multiple Airlines
Mon, 26 Oct - Mon, 30 Nov
Multiple Airlines Logo
18:50 - 07:55
ORD
-
PAT
26h 35m
2 stops
Multiple Airlines Logo
15:05 - 14:30
PAT
-
ORD
58h 55m
3 stops
₹ 116,506Multiple Airlines
Mon, 26 Oct - Mon, 30 Nov
Multiple Airlines Logo
21:10 - 20:20
ORD
-
PAT
36h 40m
2 stops
Multiple Airlines Logo
08:20 - 15:40
PAT
-
ORD
41h 50m
2 stops
₹ 117,657Multiple Airlines
Wed, 24 Jun - Fri, 10 Jul
British Airways Logo
17:50 - 12:45
ORD
-
PAT
32h 25m
2 stops
British Airways Logo
18:35 - 12:30
PAT
-
ORD
28h 25m
2 stops
₹ 130,026British Airways
Thu, 17 Sep - Mon, 21 Sep
British Airways Logo
17:50 - 15:15
ORD
-
PAT
34h 55m
2 stops
British Airways Logo
18:35 - 12:30
PAT
-
ORD
28h 25m
2 stops
₹ 130,122British Airways
Thu, 17 Sep - Mon, 21 Sep
Multiple Airlines Logo
19:20 - 20:20
ORD
-
PAT
38h 30m
2 stops
Multiple Airlines Logo
22:10 - 15:05
PAT
-
ORD
51h 25m
2 stops
₹ 142,013Multiple Airlines
Mon, 29 Jun - Mon, 6 Jul
Multiple Airlines Logo
19:20 - 15:15
ORD
-
PAT
33h 25m
2 stops
Multiple Airlines Logo
12:55 - 15:05
PAT
-
ORD
60h 40m
3 stops
₹ 142,300Multiple Airlines
Mon, 29 Jun - Mon, 6 Jul
Multiple Airlines Logo
14:30 - 09:40
ORD
-
PAT
32h 40m
1 stop
Multiple Airlines Logo
19:10 - 14:30
PAT
-
ORD
54h 50m
2 stops
₹ 150,930Multiple Airlines
Mon, 26 Oct - Mon, 30 Nov
British Airways Logo
18:00 - 12:45
ORD
-
PAT
32h 15m
2 stops
British Airways Logo
18:35 - 17:35
PAT
-
ORD
57h 30m
2 stops
₹ 152,273British Airways
Wed, 24 Jun - Fri, 10 Jul
IndiGo Logo
11:25 - 09:50
ORD
-
PAT
35h 55m
2 stops
IndiGo Logo
22:10 - 09:40
PAT
-
ORD
46h 00m
2 stops
₹ 156,588IndiGo
Wed, 24 Jun - Wed, 8 Jul

British Airways flights from Illinois to Patna

Our best British Airways deals on Illinois to Patna flight tickets
British Airways
17 Sept
ORD17:50Chicago O'Hare Intl
32h 25m
2 stops
PAT12:45Patna
21 Sept
PAT18:35Patna
28h 25m
2 stops
ORD12:30Chicago O'Hare Intl
₹ 130,026
British Airways
17 Sept
ORD17:50Chicago O'Hare Intl
34h 55m
2 stops
PAT15:15Patna
21 Sept
PAT18:35Patna
28h 25m
2 stops
ORD12:30Chicago O'Hare Intl
₹ 130,122
British Airways
24 Jun
ORD18:00Chicago O'Hare Intl
32h 15m
2 stops
PAT12:45Patna
10 Jul
PAT18:35Patna
57h 30m
2 stops
ORD17:35Chicago O'Hare Intl
₹ 152,273

IndiGo flights from Illinois to Patna

Our best IndiGo deals on Illinois to Patna flight tickets
IndiGo
24 Jun
ORD11:25Chicago O'Hare Intl
35h 55m
2 stops
PAT09:50Patna
8 Jul
PAT22:10Patna
46h 00m
2 stops
ORD09:40Chicago O'Hare Intl
₹ 156,588
IndiGo
24 Jun
ORD20:10Chicago O'Hare Intl
38h 45m
2 stops
PAT21:25Patna
8 Jul
PAT20:55Patna
47h 15m
2 stops
ORD09:40Chicago O'Hare Intl
₹ 157,067
IndiGo
24 Jun
ORD11:25Chicago O'Hare Intl
38h 50m
2 stops
PAT12:45Patna
10 Jul
PAT20:55Patna
47h 15m
2 stops
ORD09:40Chicago O'Hare Intl
₹ 163,971

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 16 May 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

Mon 26/10

18:50-17:40

2 stops36h 20m

Patna

Mon 30/11

23:10-14:30

2 stops50h 50m

₹ 97,999

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 26/10

18:50-07:55

2 stops26h 35m

Patna

Mon 30/11

15:05-14:30

3 stops58h 55m

₹ 116,506

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 24/6

21:10-20:20

2 stops36h 40m

Patna

Fri 10/7

08:20-15:40

2 stops41h 50m

₹ 117,657
Fastest return journey

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Thu 17/9

17:50-12:45

2 stops32h 25m

Patna

Mon 21/9

18:35-12:30

2 stops28h 25m

₹ 130,026

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Thu 17/9

17:50-15:15

2 stops34h 55m

Patna

Mon 21/9

18:35-12:30

2 stops28h 25m

₹ 130,122

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 29/6

19:20-20:20

2 stops38h 30m

Patna

Mon 6/7

22:10-15:05

2 stops51h 25m

₹ 142,012

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 29/6

19:20-15:15

2 stops33h 25m

Patna

Mon 6/7

12:55-15:05

3 stops60h 40m

₹ 142,300

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Mon 26/10

14:30-09:40

1 stop32h 40m

Patna

Mon 30/11

19:10-14:30

2 stops54h 50m

₹ 150,930

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 24/6

18:00-12:45

2 stops32h 15m

Patna

Fri 10/7

18:35-17:35

2 stops57h 30m

₹ 152,273

ChicagoPatna

ORD - PAT

ORDPAT

Chicago O'Hare Intl

Wed 24/6

11:25-09:50

2 stops35h 55m

Patna

Wed 8/7

22:10-09:40

2 stops46h 00m

₹ 156,588

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

24h 40m

Direct flights

None
The fastest flight from Illinois to Patna takes 24h 40m
There are no direct flights from Illinois to Patna. There are no popular flight routes from Illinois to Patna.
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Frequently asked questions about flying from Illinois to Patna

  • 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.

Frequently asked questions about flying from Illinois to Patna

  • How do I get Price Alerts for flights from Illinois to Patna?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Illinois from Patna. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Illinois to Patna with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

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.

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