Cheap Flights from Chicago to Las Vegas

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

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Flight deals from Chicago to Las Vegas

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

Find the cheapest month to fly from Chicago to Las Vegas

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago to Las Vegas flights are currently cheapest in April.

Direct flights from Chicago to Las Vegas

Alternative Chicago to Las Vegas routes

Looking for the cheapest, fastest or easiest route from Chicago to Las Vegas? You could fly into the following airports instead.

Chicago to Las Vegas: Flight information

The things to know before you go.
Cheapest flight foundر.ق.‏ 127
Cheapest month to flyApril
Average flight time3 hrs, 55 mins
Most popular airlineSouthwest Airlines
Average flights per week385

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

There are 4 airports in Las Vegas: Las Vegas North Air Terminal, Las Vegas Harry Reid International, Las Vegas Henderson Sky Harbor, and Boulder City.
The best price we found for a return flight from Chicago to Las Vegas is ر.ق.‏ 254. 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 55 minutes is the average flight time from Chicago to Las Vegas.
Southwest Airlines, American Airlines and United fly direct from Chicago to Las Vegas.
As of March 2025, there are 385 flights per week flying from Chicago to Las Vegas.
The cheapest month to fly from Chicago to Las Vegas is usually March 2025.
If you're flying from Chicago, the cheapest airport near Las Vegas is Las Vegas Harry Reid International – which is 4.3 km away from the centre of Las Vegas. We've found flights into this airport from ر.ق.‏ 254.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Las Vegas on Wednesday, 2 April 2025.
Yes – the average flight time is 3 hours and 55 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 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.
In March, the average temperature is usually around 11°C. July is typically the warmest month in Las Vegas, when it usually averages around 37°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging -0°C. The rainiest month is February.
The cheapest airline that flies to Las Vegas is Spirit Airlines .

Flying from Chicago to Las Vegas: what you need to know

  • Start your travels at one of Chicago's main airports, O'Hare International Airport (ORD) or Chicago Midway International Airport (MDW). Check out your options for booking a flight from Chicago to Las Vegas departing from either of these.

  • When it comes to where you'll hop off the plane, Las Vegas's chief hub is Harry Reid Airport (formerly McCarran Airport) (LAS).

  • A direct flight from Chicago to Las Vegas takes on average 3 hours 53 minutes. The timezone in Las Vegas is UTC-7, which makes it 2 hours behind Chicago.

  • With 124 flights a week between the two airports, O'Hare International Airport (ORD) to Harry Reid Airport (formerly McCarran Airport) Airport (LAS) is the busiest route. Board the first flight from Chicago to Las Vegas with United Airlines at 06:00. If you'd like to make the most of your day before flying, the latest flight from ORD to LAS is with Spirit Airlines at 23:10.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This ensures you have enough time to catch your flight from Chicago to Las Vegas.

  • If you're taking off during a bank holiday or other peak period, give yourself more time. A good rule is two hours before domestic flights and up to four hours before international departures. Check-in and security lines will be longer.

  • You won't need a visa or passport to fly within United States. You will need a valid form of identification though, such as a driver's licence or an ID card. Add them to your packing checklist once you've booked cheap flights from Chicago to Las Vegas.

Flying from Chicago

O'Hare International Airport (ORD)

  • If you're searching for a direct flight from Chicago to Las Vegas, you can catch one from O'Hare International Airport (ORD). Get from ORD to Harry Reid Airport (formerly McCarran Airport) Airport (LAS) without any stops.

  • Popular airlines that operate direct flights from Chicago to Las Vegas departing ORD include:

  • Think about adding a stopover to potentially find a cheaper flight from Chicago to Las Vegas. Simply deselect 'Direct flights only' when browsing departures from O'Hare International Airport. Take a pause at one of these airports:

    • Eppley Airfield Airport (OMA)

    • Kansas City International Airport (MCI)

    • Denver International Airport (DEN)

  • Located around 40 kilometres from the centre of Chicago, ORD can be reached in approximately 35 minutes by car (depending on traffic). The same journey by public transport is roughly 54 minutes.

  • After a relaxed start to your break? Stay near O'Hare International Airport. Whether you have an early flight from Chicago to Las Vegas or want to avoid feeling rushed, these hotels are ideal:

Chicago Midway International Airport (MDW)

  • Rather start your trip at Chicago Midway International Airport (MDW)? This popular terminal also offers nonstop flights from Chicago to Las Vegas — get ready to travel straight to Harry Reid Airport (formerly McCarran Airport) Airport (LAS).

  • Take a direct flight from Chicago to Las Vegas with Frontier Airlines. This is one of the top carriers flying this route out of MDW.

  • Get the most out of your holiday with a stopover on your flight from Chicago to Las Vegas. Visit friends or family or tick a new city off your bucket list. Whatever you'd like to do, here's where you can stop between O'Hare International Airport and Las Vegas:

    • Eppley Airfield Airport (OMA)

    • Kansas City International Airport (MCI)

    • Denver International Airport (DEN)

  • MDW is around 19 kilometres from central Chicago. It'll take you 21 minutes or so to get to the airport driving from the city centre. Public transport takes roughly 46 minutes.

  • You're going on holiday, so why not enjoy an additional night away? Think about checking in to one of these hotels near Chicago Midway International Airport the day before your flight from Chicago to Las Vegas:

Arriving in Las Vegas

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

  • Harry Reid Airport (formerly McCarran Airport) Airport (LAS) is around 19 kilometres from central Las Vegas. With a car rental or if you're catching a cab, the drive is about 15 minutes.

  • It'll take around 1 hour if you're using public transport.

  • If you're arriving on a late flight from Chicago to Las Vegas, nothing beats the convenience of staying near the terminal. Grab your suitcases from the carousel and then be showered and sleeping soon after at one of these accommodation options near LAS:

How to find the cheapest flights from Chicago to Las Vegas

  • The cheapest price we've seen for a one-way ticket from Chicago to Las Vegas is ر.ق.‏ 127. For a return flight on this route, the best price is ر.ق.‏ 254. Depending on when you book and the availability, these fares may change.

  • To secure cheap tickets from Chicago to Las Vegas, book your journey 9 months ahead of the departure date.

  • May is the cheapest month for flight tickets from Chicago to Las Vegas. If you'd like to travel at a different time of year, the 'Whole month' tool will give you the lowest prices for each month.

  • Finding a cheap ticket from Chicago to Las Vegas is a breeze with Price Alerts. Simply create one of these automatic alerts and we'll notify you as soon as there's a better deal.

  • Tailor your flights using filters. Choose your departure and arrival times, total journey duration and airlines. You can also sort the results by 'Cheapest,' 'Best' or 'Fastest' flights from Chicago to Las Vegas.

Best time to go to Las Vegas

  • May is the quietest month for flights from Chicago to Las Vegas, while October is the most popular. Work out the ideal time to visit Las Vegas based on whether you like a bustling atmosphere or a more laid-back vibe.

  • The warmest month in Las Vegas is July, with temperatures ranging between 23ºC and 42ºC. Book your flights from Chicago to Las Vegas in this month if you like this kind of weather.

  • If you like travelling in cooler conditions, book a cheap ticket from Chicago to Las Vegas in January when temperatures average between -1ºC and 13ºC.

More about Las Vegas

  • Start your Las Vegas trip off on the right foot by choosing the ideal place to stay. As soon as you've booked your flight from Chicago to Las Vegas, browse our range of hotels including:

  • All great holidays should include a little sightseeing. Las Vegas Strip, Fountains of Bellagio and Fremont Street Experience are attractions you won't want to skip in Las Vegas.

Complete your Las Vegas trip with a car rental

  • Browse our range of car rentals once you've found your hotel and cheap flight from Chicago to Las Vegas. Whether you're after a compact ride, spacious sedan or something more luxurious, you can easily compare companies in one go to find the perfect deal.

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