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

Currently, August is the cheapest month in which you can book a flight from Rennes to Chicago (average of $245). Flying from Rennes to Chicago 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.

What is the cheapest time of day to fly from RNS to CHI?

When flying from Rennes to Chicago, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from Rennes to Chicago?

Rennes St Jacques (RNS), located 4.0 mi from the city center, is the airport you fly out of when you book flights from Rennes to Chicago. 0 airlines have flights from St Jacques to Chicago on a regular basis. Booking flights from Rennes St Jacques to Chicago should not be difficult; the airport handles an average of 0 outbound flights to Chicago per day.

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

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

How can I find direct flights from Rennes to Chicago?

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

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

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

$891+ Flights from Rennes to Chicago

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Find flight deals from Rennes to Chicago

Cheapest flights from Rennes to Chicago
Explore the most affordable flight options available from Rennes to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

Mon 12/2210:20 amRNS - ORD

1 stop11h 45mDelta

Sun 1/412:00 pmORD - RNS

2 stops18h 45mDelta

Deal found 4/16

$891

Mon 12/2210:20 amRNS - ORD

1 stop11h 45mKLM

Sun 1/45:20 pmORD - RNS

1 stop13h 25mKLM

Deal found 4/16

$1,032

Best time to book a flight from Rennes to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago 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 Chicago

Rainfall in Chicago by month

In terms of precipitation, rainfall in Chicago ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

Temperature in Chicago by month

If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Related info for your journey

What airport do you fly from for flights from Rennes to Chicago?
Rennes St Jacques (RNS), located 4.0 mi from the city center, is the airport you fly out of when you book flights from Rennes to Chicago. 0 airlines have flights from St Jacques to Chicago on a regular basis. Booking flights from Rennes St Jacques to Chicago should not be difficult; the airport handles an average of 0 outbound flights to Chicago per day.
Can I find deals for flights from Rennes to Chicago that include hotel bookings?
Yes. In addition to deals on Rennes to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Rennes to Chicago?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rennes to Chicago.
Can I find deals for business class flights from Rennes to Chicago?
Yes. Cheapflights offers flight deals from Rennes to Chicago 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 Chicago?
Currently, August is the cheapest month in which you can book a flight from Rennes to Chicago (average of $245). Flying from Rennes to Chicago 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.

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$891+ Cheap flights from Rennes (RNS) to Chicago (CHI)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/22. Fares are subject to change and may not be available on all flights or dates of travel.