$685+ 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PAT
May 6 — May 131
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 May 1, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $1,270 (oojo) |
One-way from | $685 (Kiwi.com) |
Find flight deals from Illinois to Patna
Cheapest flights from Illinois to PatnaExplore 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 May 1, 2025.
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 May 1, 2025.
This oojo deal was found by Cheapflights users on 5/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/112:00 pmORD - PAT
1 stop23h 30mAir India
Sat 11/157:10 pmPAT - ORD
1 stop22h 50mAir India
Deal found 5/1![Air India logo]()
$852
This Mytrip deal was found by Cheapflights users on 5/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/157:20 pmORD - PAT
3 stops36h 00mMultiple Airlines
Sun 6/227:25 pmPAT - ORD
3 stops46h 30mMultiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$1,465
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 May 1, 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
Mon 5/26
12:00 pm-10:00 pm
1 stop23h 30m
Patna
Mon 7/7
7:10 pm-7:25 am
1 stop22h 45m
$1,270
ChicagoPatna
ORD - PAT
ORDPAT
Chicago O'Hare Intl
Sun 6/15
7:20 pm-5:50 pm
3 stops36h 00m
Patna
Sun 6/22
7:25 pm-7:25 am
3 stops46h 30m
$1,465
ChicagoPatna
ORD - PAT
ORDPAT
Chicago O'Hare Intl
Thu 5/15
7:35 am-7:45 pm
3 stops49h 40m
$685
ChicagoPatna
ORD - PAT
ORDPAT
Chicago O'Hare Intl
Thu 5/15
12:00 pm-10:00 pm
1 stop23h 30m
$691
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 May 1, 2025.
Crew
6.6
Overall
5.5
Food
5.8
Boarding
6.2
Entertainment
4.6
Comfort
5.5
Reviews
1 / 20
6.0
GoodAnonymous,Sep 2024
SFO - DEL
Crew
6.6
Overall
5.5
Food
5.8
Boarding
6.2
Entertainment
4.6
Comfort
5.5
Reviews
1 / 20
6.0
GoodAnonymous,Sep 2024
SFO - DEL
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.
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Alternative routes for Illinois to Patna
See prices for flight routes from nearby airports that may be better suited for you.
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 May 1, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$836 | Average$1,178 | FlexibilityNo cancel fee | On-timeN/A |