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>

$328 Cheap Flights from Illinois to Casper

CPR

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

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Cheapest round-trip

$328

United Airlines

週四 1/8週一 1/12

STL - CPR • 1 stop

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Flight Deals

Cheap Flights from Illinois to Casper

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Casper 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 Casper

週四, 1月 8 - 週一, 1月 12

2:45 pm - 10:14 pm

STL

CPR

8h 29m1 stop

3:17 pm - 8:58 pm

CPR

STL

4h 41m1 stop

$328United Airlines

週四, 1月 8 - 週一, 1月 12

8:45 am - 12:35 pm

STL

CPR

4h 50m1 stop

11:28 am - 10:58 pm

CPR

STL

10h 30m2 stops

$334United Airlines

週三, 1月 14 - 週六, 1月 17

1:55 pm - 10:14 pm

ORD

CPR

9h 19m1 stop

11:28 am - 6:46 pm

CPR

ORD

6h 18m1 stop

$338United Airlines

週四, 1月 8 - 週一, 1月 12

8:30 am - 7:06 pm

STL

CPR

11h 36m2 stops

11:28 am - 10:58 pm

CPR

STL

10h 30m2 stops

$339United Airlines

週四, 1月 29 - 週六, 1月 31

8:50 am - 7:06 pm

ORD

CPR

11h 16m2 stops

11:28 am - 6:46 pm

CPR

ORD

6h 18m1 stop

$449United Airlines

週一, 12月 29 - 週日, 1月 4

1:55 pm - 10:25 pm

ORD

CPR

9h 30m1 stop

6:10 pm - 9:44 am

CPR

ORD

14h 34m1 stop

$691United Airlines

週一, 12月 29 - 週日, 1月 4

7:10 am - 2:40 pm

ORD

CPR

8h 30m1 stop

1:22 pm - 7:58 am

CPR

ORD

17h 36m2 stops

$718United Airlines

週日, 12月 28 - 週四, 1月 1

7:58 pm - 4:59 pm

ORD

CPR

22h 01m2 stops

1:22 pm - 11:00 pm

CPR

ORD

8h 38m1 stop

$737United Airlines

週日, 12月 28 - 週四, 1月 1

9:40 pm - 10:51 am

ORD

CPR

14h 11m1 stop

11:26 am - 11:00 pm

CPR

ORD

10h 34m1 stop

$770United Airlines

Useful Info

Low season	September
High season	May

Best time to beat the crowds with an average 7% drop in price.

Most popular time to fly and prices are also 3% 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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Information on the airport you'll fly into in Casper

Casper (CPR)

CPR

$328 Find Cheap Flights from Illinois to Casper

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

Everything you should know

Cheap Flights from Illinois to Casper

Recent round-trip 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