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>

$1,204 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

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Cheapest round-trip

$1,204

Multiple Airlines

Sat 11/29Sat 12/6

ORD - RUN • 2 stops

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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

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

Sat, Nov 29 - Sat, Dec 6

6:30 pm - 9:10 amORD-RUN

28h 40m2 stops

8:40 pm - 5:20 pmRUN-ORD

30h 40m2 stops

$1,204Multiple Airlines

Find Deal

Sat, Nov 29 - Sat, Dec 6

4:20 pm - 7:05 pmORD-RUN

40h 45m3 stops

7:00 am - 8:05 pmRUN-ORD

47h 05m2 stops

$1,837Multiple Airlines

Find Deal

Sat, Nov 29 - Sat, Dec 6

5:20 pm - 8:20 amORD-RUN

29h 00m1 stop

10:40 am - 3:10 pmRUN-ORD

38h 30m1 stop

$1,926KLM

Find Deal

Sat, Nov 29 - Sat, Dec 6

6:15 pm - 8:20 amORD-RUN

28h 05m2 stops

10:40 am - 3:10 pmRUN-ORD

38h 30m1 stop

$1,930KLM

Find Deal

Wed, Apr 8 - Sun, Apr 12

5:10 pm - 6:30 amORD-RUN

28h 20m1 stop

8:25 pm - 3:00 pmRUN-ORD

27h 35m1 stop

$1,965KLM

Find Deal

Wed, Apr 8 - Sun, Apr 12

5:55 pm - 12:20 pmORD-RUN

33h 25m2 stops

8:25 pm - 3:00 pmRUN-ORD

27h 35m1 stop

$1,969KLM

Find Deal

Wed, Apr 8 - Sun, Apr 12

2:10 pm - 6:30 amORD-RUN

31h 20m2 stops

8:25 pm - 3:00 pmRUN-ORD

27h 35m1 stop

$1,970KLM

Find Deal

Wed, Apr 8 - Sun, Apr 12

6:10 pm - 6:30 amORD-RUN

27h 20m2 stops

8:25 pm - 4:10 pmRUN-ORD

28h 45m2 stops

$1,977Air France

Find Deal

Sat, Nov 29 - Sat, Dec 6

8:20 am - 9:55 amORD-RUN

39h 35m3 stops

11:00 pm - 10:05 pmRUN-ORD

33h 05m3 stops

$1,990Multiple Airlines

Find Deal

Useful Info

Cheapest flight	$1,204

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

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

Saint-Denis (RUN)

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$1,204 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

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