Cheap flights from Las Vegas to Chicago from $125 LAS → ORD

Found recently, and the cheapest we hold

It is also the cheapest return we hold, of any age.

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $137 to $222.

At $302, the cheapest return found recently is above that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 3-night return fares leaving within 3 days of 5 Mar 2027 to compare.

Every date we hold

2 fares on 2 departure dates

Which month looks cheapest?

March 2027 is the cheapest month — from $302.

Found recently, and the cheapest we hold

It is also the cheapest one-way we hold, of any age.

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $67 to $143.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 6 Dec to compare.

Every date we hold

4 fares on 3 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $125.

Return

Fares 30 to 59 days before departure were typically 46% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

Fares 30 to 59 days before departure were typically 37% lower than 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from Las Vegas to Chicago?

The cheapest return found recently is $302 with Frontier Airlines, 5 Mar 2027 to 8 Mar 2027, found 4 days ago.

How much is a one-way flight from Las Vegas to Chicago?

The cheapest one-way found recently is $125 with American Airlines, 6 Dec, found 2 days ago. The cheapest one-way fare on each of 3 departure dates is usually $128 to $143.

What is the cheapest month to fly from Las Vegas to Chicago?

March 2027 is the cheapest month for a return, from $302, 5 Mar 2027 to 8 Mar 2027, found 4 days ago. December 2026 is the cheapest month for a one-way, from $125, 6 Dec, found 2 days ago.

How far ahead should I book a flight from Las Vegas to Chicago?

In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 46% lower than 0 to 6 days before departure. One-way fares 30 to 59 days before departure were typically 37% lower than 0 to 6 days before departure.

Is there a direct flight from Las Vegas to Chicago?

Yes, the cheapest nonstop return found recently is $302 with Frontier Airlines, 5 Mar 2027 to 8 Mar 2027, found 4 days ago. The cheapest nonstop one-way found recently is $125 with American Airlines, 6 Dec, found 2 days ago.

How long is the flight from Las Vegas to Chicago?

The cheapest nonstop one-way found recently, with American Airlines on 6 Dec, takes 3 h 34 min from McCarran International Airport (LAS) to O'Hare International Airport (ORD).

Which airlines have the cheapest flights from Las Vegas to Chicago?

Between 6 Dec and 9 Mar 2027, American Airlines has the cheapest one-way on 1 of the 3 departure dates we hold, Frontier Airlines on 1 and Alaska Airlines on 1.