How does KAYAK find such low prices on flights from Illinois to Casper?

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 Casper. 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 Casper?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Casper 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 Casper?

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 Casper 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 Casper?

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 Casper 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>

$273 CHEAP FLIGHTS from Illinois to Casper

CPR

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Cheap Flights from Illinois to Casper

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 Casper

Thu, Mar 26 - Mon, Mar 30

6:02 pm - 9:59 pm

STL

CPR

4h 57m

1 stop

9:05 am - 4:56 pm

CPR

STL

6h 51m

1 stop

$317United Airlines

Sat, Apr 11 - Sat, Apr 18

8:54 am - 12:46 pm

STL

CPR

4h 52m

1 stop

3:14 pm - 8:54 pm

CPR

STL

4h 40m

1 stop

$318United Airlines

Sat, Apr 11 - Sat, Apr 18

8:21 am - 2:39 pm

STL

CPR

7h 18m

2 stops

5:25 am - 1:08 pm

CPR

STL

6h 43m

1 stop

$324United Airlines

Thu, May 28 - Mon, Jun 1

6:00 am - 10:46 am

ORD

CPR

5h 46m

1 stop

6:13 pm - 12:44 am

CPR

ORD

5h 31m

1 stop

$328United Airlines

Sat, Apr 11 - Sat, Apr 18

8:21 am - 2:39 pm

STL

CPR

7h 18m

2 stops

11:22 am - 9:13 pm

CPR

STL

8h 51m

2 stops

$329United Airlines

Sat, Apr 11 - Sat, Apr 18

8:21 am - 2:39 pm

STL

CPR

7h 18m

2 stops

11:22 am - 9:13 pm

CPR

STL

8h 51m

2 stops

$345United Airlines

Wed, Apr 15 - Sat, Apr 18

9:10 am - 5:02 pm

STL

CPR

8h 52m

2 stops

11:22 am - 9:13 pm

CPR

STL

8h 51m

2 stops

$346United Airlines

Tue, Apr 28 - Sat, May 2

8:54 am - 5:09 pm

STL

CPR

9h 15m

1 stop

9:00 am - 2:28 pm

CPR

STL

4h 28m

1 stop

$368United Airlines

Tue, Apr 28 - Sat, May 2

8:54 am - 12:46 pm

STL

CPR

4h 52m

1 stop

1:17 pm - 10:45 pm

CPR

STL

8h 28m

2 stops

$374United Airlines

Sat, Apr 18 - Wed, Apr 22

12:55 pm - 8:26 pm

ORD

CPR

8h 31m

1 stop

11:22 am - 9:20 pm

CPR

ORD

8h 58m

1 stop

$378United Airlines

Useful Info

Low season	October
High season	May

Best time to beat the crowds but there is an average 45% increase in price.

Most popular time to fly and prices are also 5% lower on average.

How does KAYAK find such low prices on flights from Illinois to Casper?
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 Casper.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Casper?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Casper 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 Casper?
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 Casper 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 Casper?
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 Casper from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Evansville

Everything you need to know for your flight to Casper

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Cabin class

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Information on the airport you'll fly into in Casper

Casper (CPR)

CPR

$273 Find Cheap Flights from Illinois to Casper

KAYAK searches hundreds of travel sites at once for deals on flights to Casper

Cheap Flights from Illinois to Casper

Recent round-trip flight deals from Illinois to Casper

Recent one-way flight deals from Illinois to Casper

Recent last minute flight deals from Illinois to Casper

Good to know

FAQs for booking flights from Illinois to Casper

How does KAYAK find such low prices on flights from Illinois to Casper?

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 Casper.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Casper 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 Casper?

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 Casper 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 Casper?

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 Casper from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Casper?

Everything you need to know for your flight to Casper

Information on the airport you'll fly into in Casper

Cabin class types available on flights to Illinois

Complete your trip to Casper with a hotel stay or car rental

Find direct flights for Casper

Flights to other popular destinations

Flights from domestic origins to Casper

Choose which airport to fly into in Casper

Find deals for your return flight