HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$469+ Cheap flights from Rennes (RNS) to Illinois

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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
RNS — ORD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Rennes to Illinois with Cheapflights

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 Rennes to Illinois

Keep the following information in mind while searching for Rennes to Illinois flight deals. Data was last updated September 16, 2025.

Round-trip from

$755
(Trip.com)

One-way from

$469
(Kiwi.com)
From Rennes St Jacques to Illinois
Search Deals
One-way flight from Rennes St Jacques to Illinois
Search Deals

Find flight deals from Rennes to Illinois

Cheapest flights from Rennes to Illinois
Explore the most affordable flight options available from Rennes to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Trip.com deal was found by Cheapflights users on 9/14. 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.
Wed 12/318:20 pmRNS - ORD
2 stops28h 00mMultiple Airlines
Thu 1/156:30 pmORD - RNS
2 stops19h 05mMultiple Airlines
Deal found 9/14$755
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:05 amRNS - ORD
1 stop11h 05mDelta
Thu 1/151:30 pmORD - RNS
2 stops13h 50mDelta
Deal found 9/14$921
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:35 pmRNS - ORD
1 stop27h 45mDelta
Mon 12/810:31 amORD - RNS
2 stops16h 49mDelta
Deal found 9/14$938
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:35 pmRNS - MDW
2 stops50h 33mDelta
Mon 12/86:00 amMDW - RNS
2 stops21h 20mDelta
Deal found 9/14$944
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2211:05 amRNS - ORD
1 stop11h 05mDelta
Sun 1/44:25 pmORD - RNS
1 stop17h 35mDelta
Deal found 9/15$1,074
This KLM deal was found by Cheapflights users on 9/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2211:05 amRNS - ORD
2 stops16h 51mKLM
Sun 1/44:25 pmORD - RNS
1 stop17h 35mKLM
Deal found 9/15$1,088
This Air France deal was found by Cheapflights users on 9/15. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2211:05 amRNS - ORD
2 stops16h 51mAir France
Sun 1/412:20 pmORD - RNS
2 stops15h 00mAir France
Deal found 9/15$1,120
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/110:30 amRNS - ORD
1 stop11h 30mDelta
Sun 10/53:30 pmORD - RNS
2 stops15h 15mDelta
Deal found 9/15$1,179
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/110:30 amRNS - MDW
2 stops18h 06mDelta
Sun 10/51:08 pmMDW - RNS
2 stops19h 52mDelta
Deal found 9/15$1,191
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:05 amRNS - MDW
2 stops18h 11mDelta
Thu 1/159:20 amMDW - RNS
2 stops21h 35mDelta
Deal found 9/14$1,523

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rennes to Illinois 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 September 16, 2025.
Use the filters below to find and compare flights from Rennes to Illinois that are best for you.

Fly from

Rennes

Fly to

Illinois

Route

Depart

Return

Price

RennesChicago

RNS - ORD

RNSORD

Rennes St Jacques

Wed 12/31

8:20 pm-5:20 pm

2 stops28h 00m

Chicago O'Hare Intl

Thu 1/15

6:30 pm-8:35 pm

2 stops19h 05m

$755

RennesChicago

RNS - ORD

RNSORD

Rennes St Jacques

Wed 12/31

11:05 am-3:10 pm

1 stop11h 05m

Chicago O'Hare Intl

Thu 1/15

1:30 pm-10:20 am

2 stops13h 50m

$921

RennesChicago

RNS - ORD

RNSORD

Rennes St Jacques

Thu 12/4

5:35 pm-2:20 pm

1 stop27h 45m

Chicago O'Hare Intl

Mon 12/8

10:31 am-10:20 am

2 stops16h 49m

$938

RennesChicago

RNS - ORD

RNSORD

Rennes St Jacques

Fri 10/31

5:30 pm-3:20 pm

1 stop27h 50m

Chicago O'Hare Intl

Fri 11/7

1:08 pm-10:35 am

2 stops14h 27m

$977

RennesChicago

RNS - MDW

RNSMDW

Rennes St Jacques

Fri 10/31

11:05 am-10:14 pm

2 stops17h 09m

Chicago Midway

Fri 11/7

9:35 am-10:35 am

2 stops18h 00m

$987

RennesChicago

RNS - MDW

RNSMDW

Rennes St Jacques

Thu 1/1

11:05 am-10:16 pm

2 stops18h 11m

Chicago Midway

Thu 1/15

9:30 am-1:55 pm

2 stops21h 25m

$1,167

RennesChicago

RNS - MDW

RNSMDW

Rennes St Jacques

Wed 10/1

10:30 am-9:36 pm

2 stops18h 06m

Chicago Midway

Sun 10/5

1:08 pm-4:00 pm

2 stops19h 52m

$1,191

RennesChicago

RNS - MDW

RNSMDW

Rennes St Jacques

Wed 12/31

11:05 am-10:16 pm

2 stops18h 11m

Chicago Midway

Thu 1/15

9:20 am-1:55 pm

2 stops21h 35m

$1,523

RennesChicago

RNS - ORD

RNSORD

Rennes St Jacques

Tue 11/4

11:05 am-3:00 pm

3 stops34h 55m

$469

RennesChicago

RNS - MDW

RNSMDW

Rennes St Jacques

Tue 11/4

10:35 am-4:15 pm

3 stops36h 40m

$658

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 13 results
1
2

Best time to book a flight from Rennes to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Rennes 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 Rennes to Illinois
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Rennes to Illinois. 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 from for flights from Rennes to Illinois?

    Rennes St Jacques (RNS) is the airport you will fly out of if you book a flight from Rennes to Illinois. It is only a 4.0 mi journey to St Jacques (RNS) from Rennes’s city center.

  • How long is the flight from Rennes to Illinois?

    Delta can get you from Rennes to Illinois in just under 11h 05m. Your travel time can differ by up to . The distance between Rennes and Illinois is about 4001 mi.

  • What are the cheapest airlines to fly from Rennes to Illinois one-way?

    To fly one-way, consider booking your trip with KLM, which is currently one of the cheapest options available, starting at $1,599. Air France flights start at $1,600 while deals on Delta start at $1,605 one-way.

  • Can I find deals for flights from Rennes to Illinois that include hotel bookings?

    Yes. In addition to deals on Rennes to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Rennes to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rennes to Illinois.

  • Can I find deals for business class flights from Rennes to Illinois?

    Yes. Cheapflights offers flight deals from Rennes to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Rennes to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Rennes to Illinois (average of $245). Flying from Rennes to Illinois in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Rennes to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Nantes to Newark flights
Nantes to John F Kennedy Intl flights
Nantes to Los Angeles flights
Nantes to Miami flights
Rennes to John F Kennedy Intl flights
Rennes to Newark flights
Nantes to Fort Lauderdale flights
Nantes to Las Vegas flights
Nantes to Dallas/Fort Worth flights
Nantes to Orlando flights
Nantes to Boston flights
Nantes to O'Hare Intl flights
Nantes to San Francisco flights
Brest to Los Angeles flights
Nantes to Baltimore flights
Nantes to Philadelphia flights
Rennes to Los Angeles flights
Rennes to Boston flights
Nantes to Dulles Intl flights
Rennes to San Francisco flights
Brest to San Francisco flights
Nantes to Portland flights
Nantes to Jacksonville flights
Nantes to George Bush Intcntl flights
Nantes to Tampa flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.