Cheap Flights from Las Vegas to Chicago O'Hare International

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Flight deals from Las Vegas to Chicago O'Hare International

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

Find the cheapest month to fly from Las Vegas to Chicago O'Hare International

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

Direct flights from Las Vegas to Chicago O'Hare International

Las Vegas to Chicago O'Hare International: Alternative routes

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

Las Vegas to Chicago: Flight information

The things to know before you go.
Cheapest flight found85 €
Cheapest month to flySeptember
Average flight time3 hrs, 47 mins
Most popular airlineAmerican Airlines
Average flights per week268

Finding cheap flights from Las Vegas to Chicago O'Hare International: Frequently asked questions

The best price we found for a return flight from Las Vegas to Chicago O'Hare International is 85 €. 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 47 minutes is the average flight time from Las Vegas to Chicago O'Hare International.
American Airlines, United and Southwest Airlines fly direct from Las Vegas to Chicago O'Hare International.
As of June 2025, there are 270 flights per week flying from Las Vegas to Chicago O'Hare International.
The cheapest month to fly from Las Vegas to Chicago O'Hare International is usually June 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Las Vegas to Chicago O'Hare International Airport on Wednesday, 3 September 2025.
Yes – the average flight time is 3 hours and 47 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 Chicago O'Hare 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 Chicago is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Chicago O'Hare International is Spirit Airlines .

Travelling from Las Vegas to O'Hare International Airport (ORD): what you need to know

  • Start your adventure at Harry Reid Airport (formerly McCarran Airport) (LAS), the main airport in Las Vegas. Look for flights from Las Vegas to O'Hare International Airport (ORD) that take off from this base.

  • Book a direct flight from Las Vegas to O'Hare International Airport and you'll be in the air for an average of 3 hours 45 minutes.

  • O'Hare International Airport is located in Chicago. The city operates in the UTC-5 timezone and is 2 hours ahead of Las Vegas.

  • With 386 direct flights a week between the two airports, Harry Reid Airport (formerly McCarran Airport) (LAS) to O'Hare International Airport (ORD) is the most popular route. Spirit Airlines operates the earliest flight at 00:19. If you'd like to get more out of your day before flying, the last flight from LAS to ORD is with United at 23:59.

  • Give yourself plenty of time to catch your flight from Las Vegas to ORD. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.

  • October is a busy time to fly out. If you're heading away then or during a major holiday like July Fourth, show up even earlier. Aim for at least two hours ahead for domestic flights and as much as four hours for international journeys.

Airports in Las Vegas

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

  • Harry Reid Airport (formerly McCarran Airport) Airport (LAS) offers an easy route to your destination. Nonstop flights from Las Vegas to O'Hare International Airport (ORD) operate out of this terminal.

  • Direct flights from Las Vegas to O'Hare International Airport are offered by a variety of airlines at LAS. Get on board with any of these:

  • Travelling from central Las Vegas to LAS takes around 1 hour on public transport. If you ride-share, drive or take a cab, you'll cover the 19 kilometres in 15 minutes or so, depending on traffic conditions.

  • Looking for a convenient hotel near Harry Reid Airport (formerly McCarran Airport) Airport? If you're catching an early flight from Las Vegas to O'Hare International Airport, these accommodation options will have you sleeping moments from check-in:

About O'Hare International Airport (ORD)

Getting from O'Hare International Airport (ORD) to central Chicago

  • O'Hare International Airport is approximately 40 kilometres from central Chicago. With your own car rental or if you take a cab, the drive is around 35 minutes.

  • When travelling by public transport, expect a journey of around 54 minutes.

How to find the cheapest flights from Las Vegas to O'Hare International Airport (ORD)

  • For a one-way ticket from Las Vegas to O'Hare International Airport, 42 € is the best price we've seen. You can also book a return flight starting from 85 €. These are currently the lowest fares and may differ depending on availability.

  • You're more likely to find cheap tickets from Las Vegas to ORD when you book 8 months before your departure date. We crunched the flight price data and found that's the time fares for this journey are typically at their lowest.

  • Schedule your trip for May. That's the cheapest month for tickets from Las Vegas to O'Hare International Airport. If you have flexibility with your dates, use the 'Whole month' tool to see the lowest price across every month.

  • Finding a cheap ticket from Las Vegas to ORD couldn't be easier with Price Alerts. Simply set up one of these automatic alerts and we'll let you know as soon as the price has fallen.

  • Personalise your trip by applying filters. Adjust the number of stops, duration, and departure and arrival times to find the right flight from Las Vegas to O'Hare International Airport. You can also sort the results to see the 'Cheapest,' 'Fastest' or 'Best' options first.

The best time to fly from Las Vegas to O'Hare International Airport (ORD)

  • August is the busiest month to board a flight from Las Vegas to O'Hare International Airport while February is the quietest. To work out the ideal time to visit Chicago, consider whether you prefer a lively vibe or a quieter pace.

  • Think about the type of weather that'll suit your plans for Chicago. July is known as the warmest month. Book your flights from Las Vegas to ORD sometime then and you can expect temperatures of between 15ºC and 29ºC.

  • January has average temperatures of between -12ºC and 3ºC. Search for cheap flights from Las Vegas to O'Hare International Airport around that time if you like cooler conditions.

More about Chicago

Complete your Chicago trip with a car rental

  • Once you've booked your hotel and cheap flight from Las Vegas to O'Hare International Airport, your next task is choosing one of our car rentals in Chicago. Browse the deals and instantly compare your options on pick-up convenience, price, and more.

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