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 May.

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 foundج.م.‏ 1,738
Cheapest month to flyMay
Average flight time3 hrs, 54 mins
Most popular airlineSouthwest Airlines
Average flights per week381

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 ج.م.‏ 4,806. 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.
Southwest Airlines, American Airlines and United fly direct from Chicago to Las Vegas.
As of April 2025, there are 381 flights per week flying from Chicago to Las Vegas.
The cheapest month to fly from Chicago to Las Vegas is usually April 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 ج.م.‏ 4,806.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Las Vegas on Sunday, 18 May 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 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 April, the average temperature is usually around 15°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 Allegiant Air .

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

  • Embark on your next adventure from 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 taking off from either of these.

  • Come in for landing at Harry Reid Airport (formerly McCarran Airport) (LAS). This is the major gateway to Las Vegas.

  • The average duration of a direct Chicago to Las Vegas flight is 3 hours 50 minutes.

  • Las Vegas is two hours behind Chicago and is in the UTC-7 timezone.

  • The busiest route for flights from Chicago to Las Vegas is from O'Hare International Airport (ORD) to Harry Reid Airport (formerly McCarran Airport) (LAS). There are 93 weekly services between these two airports. If you want to head off as soon as possible, the earliest flight from ORD to LAS is the 05:45 Southwest Airlines option. If you prefer to travel later, the last scheduled departure is at 23:10 with Spirit Airlines.

  • To ensure you get on your Chicago to Las Vegas flight, allow plenty of time to check in and find your gate. Turning up two hours ahead of international departures and one hour before domestic flights is the general rule.

  • Travelling during a peak time like August? High seasons (like Thanksgiving, Christmas and New Year) can easily add an hour at check-in and security. Be extra safe and arrive up to four hours ahead of an international flight and two hours before a domestic departure.

How to find the cheapest flights from Chicago to Las Vegas

  • ج.م.‏ 1,738 is currently the lowest price for a one-way ticket from Chicago to Las Vegas. Return flights start from ج.م.‏ 4,806. These prices may change depending on demand.

  • Get cheap Chicago to Las Vegas flights by booking two months ahead. Based on our research, that's the sweet spot for bagging a bargain.

  • Plan your trip for May. That's the best month for landing cheap plane tickets from Chicago to Las Vegas. If your travel dates are not set in stone, use the 'Whole month' tool to see the lowest price across every month.

  • You don't need to check every day to find out if fares have dropped when you set up a Price Alert. We'll update you as soon as a better deal comes up on cheap flights from Chicago to Las Vegas.

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

Flying from Chicago

O'Hare International Airport (ORD)

  • If you're looking for a direct flight from Chicago to Las Vegas, you can depart from O'Hare International Airport (ORD). Travel from ORD to Harry Reid Airport (formerly McCarran Airport) (LAS) in one seamless trip.

  • These are some of the leading carriers offering direct Chicago to Las Vegas plane tickets out of ORD:

  • Travelling from central Chicago to ORD takes about 55 minutes on public transport. If you ride-share, drive or take a cab, you'll cover the 26 kilometres in 35 minutes or so, depending on traffic.

  • Searching for a handy hotel close to O'Hare International Airport? If you're catching an early flight from Chicago to Las Vegas, these stays will put you moments from your departure gate:

  • When it comes to O'Hare International Airport's on-time performance, 74.85% of flights complete their journey on time.

  • The address for ORD is 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • Rather start your trip at Chicago Midway International Airport (MDW)? This hub offers direct flights from Chicago to Las Vegas, seamlessly connecting you to Harry Reid Airport (formerly McCarran Airport) (LAS).

  • Book your direct Chicago to Las Vegas plane ticket with Southwest Airlines. This is one of the top carriers that operates this route out of MDW.

  • You can reach MDW from central Chicago in about 20 minutes by car (depending on traffic). The journey on public transport takes roughly 45 minutes to travel the 14 kilometres or so.

  • You're off on holiday, so why not extend it with an extra night away? Think about staying at one of these accommodation options near Chicago Midway International Airport the day before your flight from Chicago to Las Vegas:

  • When it comes to keeping flights punctual, Chicago Midway International Airport has an on-time arrival performance of 77.88%.

  • MDW is located at 5700 South Cicero.

Arriving in Las Vegas

Harry Reid Airport (formerly McCarran Airport) (LAS)

  • The distance from Harry Reid Airport (formerly McCarran Airport) (LAS) to central Las Vegas is roughly 10 kilometres. It takes around 15 minutes to get to the centre driving.

  • It typically takes 1 hour to get there when travelling by public transport.

  • The last thing you need is a long journey to your hotel if you're landing late on a flight from Chicago to Las Vegas. Check in to one of these accommodation options near LAS instead:

  • Go wherever you want, whenever you want with a Harry Reid Airport (formerly McCarran Airport) rental car. Book your wheels from Dollar, Thrifty or Alamo and chase adventure across Las Vegas and beyond.

  • Secure the lowest price by reserving your ride from Harry Reid Airport (formerly McCarran Airport) about one week before your departure date.

  • The street address for LAS is 5757 Wayne Newton Boulevard.

Best time to go to Las Vegas

  • May is the quietest month for flights from Chicago to Las Vegas, while October is the busiest. Pick the ideal time to visit Las Vegas based on whether you want a lively atmosphere or a more laid-back vibe.

  • The warmest month in Las Vegas is July, with temperatures ranging between 23ºC and 42ºC. Book your Chicago to Las Vegas ticket then if that's your definition of good weather.

  • Look for cheap flights from Chicago to Las Vegas in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -1ºC and 13ºC on average.

More about Las Vegas

Explore more of United States

  • Los Angeles is just one of the many cities in United States waiting to be explored after you've seen Las Vegas. Around 370 kilometres to the south-west, its top attractions include Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • Phoenix is another well-known destination in United States and is around 418 kilometres south-east of Las Vegas. No trip is complete without visiting Desert Botanical Garden, Heard Museum and Papago Park.

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