Chicago (ORD) to Las Vegas (LAS) flight prices

A quick snapshot of Chicago (ORD) to Las Vegas (LAS) fares — lowest and typical prices plus the cheapest months and weekdays to fly, the airlines on the route and the usual duration.

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Estimated median price for a one-way ticket

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Price graph and price trends for Chicago O Hare International-Harry Reid International Airport

Weekly price trend

Today

2027

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Week

35

39

43

47

51

2

6

10

14

18

USD 94–116

USD 117–140

USD 141–163

USD 164–187

USD 188–211

Monthly price summary

July

AugustBest price

September

October

November

December

January

February

MarchMost expensive

April

May

Ticket prices for Chicago to Las Vegas (July 2026 - May 2027) are shown here with weekly or monthly averages to indicate cheaper and more expensive periods.

Source: Flightprices.com & Kayak.com
Forecast updated: March 28, 2026.

Flight information

ORD → LAS

Flight frequency

101 flights/week

Type

Direct flight

Duration

4 hours 11 minutes

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Airlines with non-stop flights on this route:

United American Airlines Frontier

FAQ – Chicago (ORD) → Las Vegas (LAS)

Are there any low-cost airlines with flights from Chicago (ORD) to Las Vegas (LAS)?

Yes — Frontier operates non-stop low-cost flights between Chicago and Las Vegas.

Which is the cheapest month to fly between Chicago O Hare International and Harry Reid International Airport?

Based on recent price logs, the cheapest month(s) is October 2026. Use the monthly view above to spot the dip weeks.

What day of the week is usually cheapest on this route?

Based on price logs for the next 12 months, the cheapest day(s) to depart are Tuesday and Wednesday. Compare weekdays in the fare calendar to target these departures.

Is roundtrip cheaper than two one-way tickets for ORD-LAS?

Usually yes, but not always. Check both options — you can easily switch between them in our widget.

How far in advance should I book to get the best price?

For domestic routes like ORD-LAS, good deals often appear a few weeks out. Watch for sales and avoid peak dates.

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Chicago (ORD)

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Las Vegas (LAS)

Roundtrip One way

Departure

Return

Adults

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Children (3–11)

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Youth (12–17)

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Infants (0–2)

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Class

Economy Premium Business First

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