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Chicago to Las Vegas flights

The cheapest round trip we found from Chicago to Las Vegas is $202 (Dec 9 – 16, Nonstop), 23% below the usual $263.

CHI to LAS · Round trip · Economy · Prices per person in USD · Price found (3 days ago)

Cheapest found

$202 23% less
Dec 9 – 16 · Nonstop · Usually $263
Book this fare
Good price — book if the dates work 23% below the usual $263, and prices have been rising this week. Based on 47 days of prices.
Not ready to book? We'll email you when Chicago → Las Vegas drops below $190.
Dec – Jan · 5–7 nights · Change

Cheapest round trip by month

Lowest fare found per departure month
Cheapest month Below usual Usual price $263 Tap a month to see its cheapest dates.
Cheapest round trip from Chicago to Las Vegas by departure month
MonthCheapest round trip
November 2026$279
December 2026$202
January 2027$186 (cheapest month)
February 2027$257
March 2027$299
April 2027$269

Cheapest dates in the next 4 months

Round trip, per person
  • Dec 9 – 16 7 nights · leave Wed
    $202 −23% vs usual
    Frontier Airlines Nonstop · 4h 15m
    Book
  • Dec 7 – 9 2 nights · leave Mon
    $231 −12% vs usual
    Frontier Airlines Nonstop · 4h 15m
    Book
  • Dec 1 – 8 7 nights · leave Tue
    $254
    Frontier Airlines 1 stop · 6h 46m
    Book
  • Feb 5 – 9, 2027 4 nights · leave Fri
    $257
    Frontier Airlines 1 stop · 6h 03m
    Book
  • Feb 5 – 8, 2027 3 nights · leave Fri
    $258
    Frontier Airlines 1 stop · 8h 22m
    Book
  • Feb 24 – 28, 2027 4 nights · leave Wed
    $261
    Frontier Airlines 1 stop · 6h 00m
    Book
  • Dec 2 – 5 3 nights · leave Wed
    $268
    Frontier Airlines 1 stop · 6h 46m
    Book
  • Nov 26 – 30 4 nights · leave Thu
    $279 +6% vs usual
    Frontier Airlines Nonstop · 4h 12m
    Book

Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert

Things to do in Las Vegas

One Go City pass for High Roller observation wheel, The STRAT tower, The Mob Museum and more

More things to do in Las Vegas →

Go City prices checked Oct 23, 2026; the final price is on Go City. Partner links: we may earn a commission if you book, at no extra cost to you.

Plan the rest of your trip

Las Vegas · Dec 9 – 16

Airport transfer · Kiwitaxi

Partner links: we may earn a commission if you book, at no extra cost to you.

Good to know

Nonstop flights Nonstop from $202 44% of the 16 date combinations we track are nonstop.
Airlines with cheap fares 2 airlines Most often: Frontier Airlines, Allegiant Air.
Most expensive month March Cheapest round trip that month is $299, vs $186 in the cheapest month.

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More from Chicago

All flights from Chicago

Flights to Las Vegas from other cities

All flights to Las Vegas Flying the other way? Las Vegas to Chicago from $191

Chicago to Las Vegas: questions

How much does a flight from Chicago to Las Vegas cost?

The cheapest round trip we have found right now is $202, leaving December 9 and returning December 16. The usual price on this route is about $263, so this fare is 23% less. Prices are per person, economy, in USD.

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

January 2027, with round trips from $186. The most expensive month in our data is March (from $299). Based on the 6 months ahead we have prices for.

Are there nonstop flights from Chicago to Las Vegas?

Yes. Nonstop from $202 round trip. 44% of the 16 date combinations we track are nonstop.

Which airports do Chicago to Las Vegas flights use?

Chicago airports include O'Hare International (ORD), Chicago Midway International (MDW) and Chicago Rockford International (RFD). Las Vegas airports include McCarran International (LAS). The prices on this page cover every airport in both cities (CHI and LAS are the city codes).

About this route

We track round-trip economy fares from Chicago (United States) to Las Vegas (United States) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $202, departing December 9 and returning December 16 on a nonstop flight, about 23% below the usual $263. Right now we're following 16 upcoming date combinations on this route. The cheapest month to fly in our data is January, from $186. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.

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