$74 Find Cheap Flights from Las Vegas to Illinois - Compare and Save

The cheapest ticket to Illinois from Las Vegas found in the last 5 days was to Chicago, at $124 round-trip. The most popular route is from Las Vegas (LAS) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 5 days was $248.

The cheapest time of day to fly to Illinois is generally at night, when round-trip flights cost $346 on average. Morning departures are around 19% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $485.

No, with an average price for the route of $316, prices are generally cheapest when you fly direct.

The cheapest month for flights from Las Vegas to Illinois is January, when tickets cost $29 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $731 and $128 respectively.

If you are looking for a flight deal from Las Vegas to Illinois, look for departures on Thursdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Illinois, Wednesday is the cheapest day to fly and Thursday is the most expensive.

To get a below average price on the flight from Las Vegas to Illinois, you should book around 2 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

There are 6 airlines that fly nonstop from Las Vegas to Illinois. They are: American Airlines, Frontier, JetBlue, Southwest, United Airlines and Allegiant Air. The cheapest price of all airlines flying this route was found with Frontier at $56 for a round-trip flight to Chicago O'Hare Intl Airport (ORD). On average, Frontier offers the best prices for nonstop flights between Las Vegas and Illinois.

Las Vegas and Illinois are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (50 flights per week), Southwest (47 flights per week), and American Airlines (40 flights per week).

The duration of a flight to Illinois depends on your arrival airport. The shortest routes to Illinois from Las Vegas are to Moline, which takes 3h 16m, Peoria, which takes 3h 19m, and Chicago, which takes 3h 25m.

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

The earliest flight from Las Vegas to Illinois departs at 12:59 am, landing in Chicago at 6:45 am.

If you prefer to fly at night, the latest flight from Las Vegas to Illinois jets off at 11:59 pm and lands in Chicago at 5:40 am.