Cheap flights from Chicago to Las Vegas Harry Reid International

Compare Chicago to Las Vegas Harry Reid International flight deals

Find the cheapest month or even day of the year to fly to Las Vegas Harry Reid International

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Flight deals from Chicago to Las Vegas Harry Reid International

Looking for a cheap last-minute deal or the best round-trip flight from Chicago to Las Vegas Harry Reid International? Find the lowest prices on one-way and round-trip tickets right here.

The cheapest month to fly from Chicago to Las Vegas Harry Reid International Airport

We’re always keeping an eye on fares, to help you find the lowest one in seconds. Check out the Chicago to Las Vegas Harry Reid International Airport flight prices forecast over the next 12 months.
Cheapest month:September
Most expensive month:May

Direct flights from Chicago to Las Vegas Harry Reid International

Chicago to Las Vegas Harry Reid International: Alternative routes

Compare routes from Chicago to Las Vegas below. You may find an airport to fly into that's cheaper, faster, or easier than Las Vegas Harry Reid International.

Chicago to Las Vegas: Flight information

The things to know before you go.
Cheapest flight foundC$132
Cheapest month to flySeptember
Average flight time3 hrs, 53 mins
Most popular airlineSouthwest Airlines
Average flights per week1,155

Finding cheap flights from Chicago to Las Vegas Harry Reid International: Frequently asked questions

The best price we found for a round-trip flight from Chicago to Las Vegas Harry Reid International is C$132. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 53 minutes is the average flight time from Chicago to Las Vegas Harry Reid International.
Southwest Airlines, American Airlines and United fly direct from Chicago to Las Vegas Harry Reid International.
There are 1,155 flights per week flying from Chicago to Las Vegas Harry Reid International, as of June 2025.
The cheapest month to fly from Chicago to Las Vegas Harry Reid International is usually June 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Las Vegas Harry Reid International Airport on Sunday, September 21, 2025.
Yes – the average flight time is 3 hours and 53 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Las Vegas Harry Reid International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Las Vegas is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Las Vegas Harry Reid International is Allegiant Air.

Flying from Chicago to Harry Reid Airport (formerly McCarran Airport) (LAS): What you need to know

  • Get your trip planning underway by checking out the best place to catch your flight from Chicago to Harry Reid Airport (formerly McCarran Airport) (LAS). Explore the options for setting off from O'Hare International Airport (ORD) or Chicago Midway International Airport (MDW), the city's main airports.

  • Expect to be in the air for 4 hours. That's the average journey time for a direct Chicago to Harry Reid Airport (formerly McCarran Airport) flight.

  • The timezone in Las Vegas is UTC-7, which is two hours behind Chicago. Harry Reid Airport (formerly McCarran Airport) is located in Las Vegas.

  • With 93 direct flights a week between the two airports, O'Hare International Airport (ORD) to Harry Reid Airport (formerly McCarran Airport) (LAS) is the busiest route. Southwest Airlines operates the earliest flight at 6am. If you prefer to get more out of your day before you fly, the latest flight from ORD to LAS is with Frontier Airlines at 9:56pm.

  • Your flight from Chicago to LAS won't wait if you're running late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • Delays at security and check-in are more likely if you're flying during high season, so allow some extra breathing room. The recommendation for peak periods? Arrive up to four hours early for international flights and at least two hours for domestic departures.

Airports in Chicago

O'Hare International Airport (ORD)

  • O'Hare International Airport (ORD) makes it easy to travel directly to your destination. Nonstop flights from Chicago to Harry Reid Airport (formerly McCarran Airport) (LAS) leave from this terminal.

  • Direct flights from Chicago to Harry Reid Airport (formerly McCarran Airport) are offered by a good number of airlines at ORD. Travel with one of these:

  • United Airlines is the airline with the highest passenger demand for flights from ORD to LAS.

  • The carrier with the top on-time arrival rate on this route is Southwest Airlines.

  • ORD is about 40 kilometres from central Chicago. If you're catching a cab, driving or ride-sharing from the centre, it'll take you 35 minutes or so to get there, depending on traffic conditions. If you're planning to take public transport, expect the journey time to be around 55 minutes.

  • Have an early flight from Chicago to Harry Reid Airport (formerly McCarran Airport)? Avoid the last-minute rush to the terminal (and sneak in some bonus sleep) by picking one of these hotels near O'Hare International Airport:

  • When it comes to the on-time performance of O'Hare International Airport, 74.85% of flights meet their scheduled arrival time.

  • You'll find ORD at 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • Planning to leave from Chicago Midway International Airport (MDW)? Direct Chicago to Harry Reid Airport (formerly McCarran Airport) (LAS) flight tickets are available from this popular hub.

  • From MDW, direct flights from Chicago to LAS are offered by Southwest Airlines.

  • Southwest Airlines is the top choice for travellers flying from MDW to LAS.

  • Among the carriers operating flights between Chicago Midway International Airport and Harry Reid Airport (formerly McCarran Airport), Southwest Airlines leads in on-time performance.

  • You can arrive at MDW from the centre of Chicago in about 20 minutes by car (depending on traffic). The journey by public transport takes roughly 45 minutes to travel the 19 kilometres or so.

  • Want to treat yourself to an extra night away before catching your Chicago to LAS flight? Kick back in a hotel near Chicago Midway International Airport before your adventure officially begins. Here's where you can stay:

  • Chicago Midway International Airport has an on-time performance rate of 77.88%. This figure highlights how often flights that take off from this airport land at their destination on schedule.

  • The address for MDW is 5700 South Cicero.

Chicago Rockford International Airport (RFD)

  • Begin your trip at Chicago Rockford International Airport (RFD) and head straight to your destination without layovers. You can book direct flights from Chicago to Harry Reid Airport (formerly McCarran Airport) from here.

  • Allegiant Air is one trusted airline that offers direct Chicago to LAS flight tickets from RFD.

  • Allegiant Air is the airline most travellers choose for flights from RFD to LAS.

  • Allegiant Air is the leading carrier for punctuality on this route, with 82.35% of its services reaching their destination on schedule.

  • From central Chicago, RFD is around 137 kilometres away. It'll take you roughly 1 hour 25 minutes to arrive by car and 4 hours 15 minutes or so if you're on public transport.

  • Sleep a little longer and still make your Chicago to Harry Reid Airport (formerly McCarran Airport) flight with plenty of time to spare. These accommodation options near Chicago Rockford International Airport make departure day effortless if you're flying out first thing:

  • The on-time performance rate of RFD is 76.19%. To put it simply, that's how frequently flights departing this airport arrive as planned.

  • The address of Chicago Rockford International Airport is 2 Airport Cir.

About Harry Reid Airport (formerly McCarran Airport) (LAS)

Getting from Harry Reid Airport (formerly McCarran Airport) (LAS) to central Las Vegas

  • From Harry Reid Airport (formerly McCarran Airport), central Las Vegas is around 19 kilometres away. It takes about 15 minutes to get to the city centre by car.

  • If you're travelling by public transport, expect a journey of around 1 hour.

How to find the cheapest flights from Chicago to Harry Reid Airport (formerly McCarran Airport) (LAS)

  • The cheapest price we've found for a one-way ticket from Chicago to Harry Reid Airport (formerly McCarran Airport) is C$63. For a return flight on this route, the best price is C$132. Depending on when you book and the availability, these fares could change.

  • Booking ahead of time is often the key to scoring a cheap flight from Chicago to LAS. Prices tend to rise as demand increases, so the closer you get to departure, the more expensive your ticket may be.

  • The 'Whole month' tool shows you the cheapest Chicago to Harry Reid Airport (formerly McCarran Airport) tickets across the month. It's a great way to snap up a bargain if your trip dates aren't set in stone.

  • Locking in a cheap flight ticket from Chicago to LAS is a piece of cake with Price Alerts. Simply create one of these automatic alerts and we'll get in touch when there's a better deal.

  • Uncover a great deal on a flight from Chicago to Harry Reid Airport (formerly McCarran Airport) with the help of the filters. Pick your preferred arrival and departure times, number of stops and airlines. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest.'

The best time to fly from Chicago to Harry Reid Airport (formerly McCarran Airport) (LAS)

  • May is the quietest month for flights from Chicago to Harry Reid Airport (formerly McCarran Airport) (LAS), while October is the most popular. Figure out the ideal time to go to Las Vegas based on whether you prefer a lively atmosphere or a more laid-back vibe.

  • Lock in a Chicago to LAS flight ticket departing in July if you're eager to visit the city during its warmest month. You can expect temperatures in Las Vegas to range from 23ºC (73ºF) to 42ºC (108ºF).

  • If you like travelling in cooler conditions, look for a cheap ticket from Chicago to Harry Reid Airport (formerly McCarran Airport) in January when temperatures are between -1ºC (30ºF) and 13ºC (55ºF).

More about Las Vegas

  • Once you've booked your flight from Chicago to Harry Reid Airport (formerly McCarran Airport), find a hotel that's got location and comfort covered. Make one of these accommodation options your base for exploring Las Vegas:

  • Ciudad del Pecado o Las Vegas and Las Vegas Strip are just two of the top attractions to add to your Las Vegas travel itinerary. Continue your sightseeing adventures at CityCenter.

Explore more of the United States

  • You've done Las Vegas, now it's time to explore other corners of the United States. Travel around 257 kilometres south-west to Victorville to tick off its top attractions. From The Community pistachio grove to Get Air Trampoline Park and Scandia Family Fun Centre, your itinerary will be busy.

  • Around 274 kilometres south-west of Las Vegas, Hesperia is another favourite stop in the United States. Experience this destination's highlights firsthand at Deep Creek Trailhead, Hesperia Zoo and Hesperia Lake Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.