How does KAYAK find such low prices on flights from Illinois to Saint-Denis?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Saint-Denis. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Saint-Denis?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Saint-Denis from Illinois is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Illinois to Saint-Denis?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Saint-Denis with an airline and back to Illinois with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Saint-Denis?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Saint-Denis from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$597 CHEAP FLIGHTS from Illinois to Saint-Denis

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KAYAK searches hundreds of travel sites at once for deals on flights to Saint-Denis

...and more

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41.299.237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$1,939

KLM

Wed 4/29Wed 5/20

ORD - RUN • 1 stop

Cheapest one-way

$597

Multiple Airlines

Thu 3/5

ORD - RUN • 2 stops

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Saint-Denis!

Flight Deals

Cheap Flights from Illinois to Saint-Denis

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Saint-Denis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Illinois to Saint-Denis

Wed, Apr 29 - Wed, May 20

5:10 pm - 6:25 am

ORD

RUN

28h 15m

1 stop

8:25 pm - 3:10 pm

RUN

ORD

27h 45m

1 stop

$1,939KLM

Wed, Apr 29 - Wed, May 20

5:03 pm - 6:25 am

ORD

RUN

28h 22m

2 stops

8:25 pm - 3:10 pm

RUN

ORD

27h 45m

1 stop

$1,944Air France

Wed, Apr 29 - Wed, May 20

5:03 pm - 6:25 am

ORD

RUN

28h 22m

2 stops

8:25 pm - 4:10 pm

RUN

ORD

28h 45m

2 stops

$1,951Air France

Wed, Apr 15 - Sat, Apr 25

5:10 pm - 6:25 am

ORD

RUN

28h 15m

1 stop

8:25 pm - 3:10 pm

RUN

ORD

27h 45m

1 stop

$2,639KLM

Wed, Apr 15 - Sat, Apr 25

6:10 pm - 6:25 am

ORD

RUN

27h 15m

2 stops

8:25 pm - 3:10 pm

RUN

ORD

27h 45m

1 stop

$2,644Multiple Airlines

Wed, Apr 15 - Sat, Apr 25

6:10 pm - 6:25 am

ORD

RUN

27h 15m

2 stops

8:25 pm - 5:30 pm

RUN

ORD

30h 05m

2 stops

$2,654Multiple Airlines

Useful Info

Cheapest flight	$597

Flight from Chicago to Saint-Denis

How does KAYAK find such low prices on flights from Illinois to Saint-Denis?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Saint-Denis.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Saint-Denis?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Saint-Denis from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Saint-Denis?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Saint-Denis with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Saint-Denis?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Saint-Denis from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Saint-Denis

Airports

Cabin class

Complete your trip

Flights to other cities

Origins

Other airports

Information on the airport you'll fly into in Saint-Denis

Saint-Denis (RUN)

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$597 Find Cheap Flights from Illinois to Saint-Denis

KAYAK searches hundreds of travel sites at once for deals on flights to Saint-Denis

Everything you should know

Cheap Flights from Illinois to Saint-Denis

Recent round-trip flight deals from Illinois to Saint-Denis

Recent one-way flight deals from Illinois to Saint-Denis

Recent last minute flight deals from Illinois to Saint-Denis

Good to know

FAQs for booking flights from Illinois to Saint-Denis

How does KAYAK find such low prices on flights from Illinois to Saint-Denis?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Saint-Denis.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Saint-Denis?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Saint-Denis from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Saint-Denis?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Saint-Denis with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Saint-Denis?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Saint-Denis from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Saint-Denis

Information on the airport you'll fly into in Saint-Denis

Cabin class types available on flights to Illinois

Complete your trip to Saint-Denis with a hotel stay or car rental

Flights to other popular destinations

Flights from domestic origins to Saint-Denis

Choose which airport to fly into in Saint-Denis