Chicago to Las Vegas Flights: ORD to LAS Route Guide, Fares & Tips

Route Overview: Chicago to Las Vegas

The journey from the Windy City to the Entertainment Capital of the World is one of the most popular domestic routes in the United States. Whether you are traveling for a high-stakes convention, a weekend of world-class dining, or a gateway to the Grand Canyon, cheap flights from Chicago to Las Vegas are readily available through Faresterminal. This route connects Chicago OHare International Airport (ORD) with Harry Reid International Airport (LAS), spanning much of the American Midwest and the Great Basin Desert. For personalized assistance with your booking, you can always call 1-800-518-9067.

Flight duration and schedule

A typical ORD to LAS nonstop flight covers the distance in approximately 3 hours and 50 minutes to 4 hours and 20 minutes. Heading west, you may face headwinds that slightly lengthen the trip, while the return journey from Las Vegas to Chicago is often shorter due to the jet stream. Airlines operate this route from early morning until late at night, including several ‘red-eye’ options for those looking to maximize their time in Nevada. For instance, a live one-way Economy fare found today for 2026-10-19 is $219 on United Airlines with a duration of about 4h 7m.

Nonstop vs one-stop options

While nonstop flights are the most convenient, one-stop options can sometimes offer lower prices during peak periods. Common layover cities include Denver (DEN), Phoenix (PHX), and Dallas (DFW). However, given the high frequency of direct service, most travelers prefer the efficiency of a direct flight. If you are looking for the best value, checking all Faresterminal route guides can help you compare different connection points.

Distance and typical aircraft

The great-circle distance between ORD and LAS is approximately 1,514 miles. This route is primarily served by narrow-body aircraft. You will frequently find yourself on a Boeing 737 or an Airbus A320 family aircraft. These planes are well-suited for the four-hour transcontinental hop, offering a balance of fuel efficiency and passenger comfort.

Airlines, Alliances and Aircraft on the ORD-LAS Route

Several major carriers dominate the skies between Chicago and Las Vegas, providing travelers with a range of service levels from ultra-low-cost to premium full-service experiences.

United Airlines (Star Alliance)

As Chicago OHare is a primary hub for United Airlines, they offer the highest frequency of flights. United typically operates Boeing 737 MAX and Airbus A321neo aircraft on this route. Passengers can choose between Basic Economy, Economy, Economy Plus (with extra legroom), and United First. Their membership in the Star Alliance allows for seamless connections if your journey begins outside of Chicago.

American Airlines (oneworld)

American Airlines also maintains a massive hub at ORD and provides multiple daily nonstop flights to LAS. They often utilize Boeing 737-800 aircraft. American provides a similar tiered cabin structure, including Main Cabin Extra and Domestic First Class. Travelers often compare this route to other major corridors like New York to Chicago or Dallas to Las Vegas (DFW-LAS).

Southwest Airlines

While Southwest operates heavily out of Chicago Midway (MDW), they also maintain a significant presence at ORD. Southwest is famous for its ‘Bags Fly Free’ policy, which can significantly lower the total cost of ORD to LAS flights. They operate an all-Boeing 737 fleet with a unique open-seating policy.

Spirit and Frontier Airlines

For budget-conscious travelers, Spirit Airlines and Frontier offer ultra-low-cost options. These carriers are ideal for those traveling light. Be aware that while the base fare may be low, fees for carry-on bags and seat assignments apply. Prices change daily based on demand and seasonality.

Cabin classes and seat tips

If you are flying on a daytime flight, try to sit on the right side of the aircraft (Seat K or F) when flying into Las Vegas for potential views of Lake Mead and the Hoover Dam during the descent. For more room without paying for First Class, look for ‘Exit Row’ seats which are often available for a small upcharge during check-in.

Departure Airport Guide: ORD

Chicago OHare is one of the world’s busiest airports, and navigating it requires a bit of planning. It is located about 17 miles northwest of the Chicago Loop.

Terminals and check-in

United Airlines primarily operates out of Terminal 1, while American Airlines is centered in Terminal 3. Spirit and Frontier also utilize Terminal 3 or Terminal 5 depending on current gate allocations. Always check your boarding pass before arriving. Terminal 5 is the international terminal but also handles some domestic arrivals and departures.

Getting to the airport

The CTA Blue Line is the most cost-effective way to reach ORD from downtown, taking about 45 minutes. For those coming from the suburbs, Metra’s North Central Service provides a connection to the O’Hare Transfer Station. Travelers also frequently search for routes like Chicago to Atlanta when planning multi-city domestic tours.

Parking and rideshare pickup

Rideshare services like Uber and Lyft pick up passengers at the designated ‘Loading Zone’ on the upper level of the Terminal 2 Garage for domestic flights. If you are driving, the Economy Lots (F and G) offer the best rates and are connected to the terminals via the Airport Transit System (ATS).

Arrival Airport Guide: LAS

Harry Reid International Airport (formerly McCarran) is unique because it sits almost directly adjacent to the famous Las Vegas Strip. You can see the resorts from the terminal windows.

Terminals and baggage claim

LAS has two main terminal buildings: Terminal 1 and Terminal 3. Terminal 1 serves Southwest, American, and Delta. Terminal 3 serves United, Spirit, and international carriers. Note that there is no Terminal 2. The terminals are not physically connected behind security, so ensure you know which baggage claim area to head toward.

Ground transportation into the city

Taxis and rideshares are the most popular way to reach the Strip or Downtown. A ride to the mid-Strip usually takes 10-15 minutes. There are also airport shuttles and the RTC transit buses (Routes 108 and 109) for a more economical choice. If you have questions about your arrival or need to change a return flight, call 1-800-518-9067.

Cheapest Time to Fly and Fare Trends

Timing is everything when booking cheap flights from Chicago to Las Vegas. Because Las Vegas is a major weekend destination, flying on ‘off-peak’ days can save you hundreds of dollars.

Best days and months to book

Tuesdays and Wednesdays are consistently the cheapest days to fly. Avoid Friday afternoon departures and Sunday afternoon returns if you are on a budget. Booking at least 21 to 30 days in advance is generally recommended to secure the lowest ORD to LAS fares.

Typical fare ranges by season

How to lock in the lowest fare on Faresterminal

Use the Faresterminal search engine to compare multiple airlines side-by-side. Our platform updates in real-time, allowing you to see the $219 on United or other competitive rates as soon as they are released. Remember that prices change daily, so if you see a great rate for ORD-LAS, it is best to book immediately.

Baggage Information and Fees

Baggage policies vary significantly between carriers. Always check the specific fare rules for your ticket, especially if you booked a Basic Economy seat.

*Note: United Basic Economy usually excludes a full-sized carry-on bag unless you are a Premier member or credit card holder.

How to avoid baggage fees

To keep your Chicago to Las Vegas flight truly cheap, try to pack in a ‘personal item’ that fits under the seat if flying Spirit or Frontier. Alternatively, flying Southwest or using a co-branded airline credit card can often waive checked bag fees. Travelers on routes like Chicago to Boston often use these same strategies to save money.

Weather in Las Vegas Through the Seasons

Las Vegas is located in the Mojave Desert, meaning it experiences extreme temperature fluctuations. However, the lack of humidity makes even high temperatures feel different than the ‘muggy’ Chicago summers.

Best months to visit

April, May, September, and October offer the most comfortable temperatures for walking the Strip or visiting Red Rock Canyon. If you are looking for the absolute cheapest flights from Chicago, January (after the first week) and August are your best bets, provided you don’t mind the cold or the heat respectively.

Where to Stay in Las Vegas

Your choice of neighborhood will define your Vegas experience. Consider these three distinct areas:

The Las Vegas Strip

This is where the iconic mega-resorts are located. Staying here puts you in the heart of the action, close to the fountains of Bellagio, the High Roller, and the major residencies. It is the most convenient for first-time visitors arriving on ORD to LAS flights.

Downtown / Fremont Street

For a ‘Vintage Vegas’ feel, head to Downtown. It is generally more affordable than the Strip and features the Fremont Street Experience, a massive LED canopy and pedestrian mall. It is also home to some of the city’s best local bars and the Arts District.

Summerlin / Red Rock

Located on the western edge of the valley, this area is perfect for those who want to gamble and dine in luxury but prefer to be closer to nature. The Red Rock Casino Resort offers stunning views of the nearby mountains and easy access to hiking trails.

Events and Reasons to Visit Las Vegas

Las Vegas is a city of constant evolution. Major events that drive flight demand include the CES Tech Show in January, the Electric Daisy Carnival (EDC) in May, and various high-profile sporting events at Allegiant Stadium. Whether you are coming for a Raiders game or a world-class residency like Adele or U2, the Chicago to Las Vegas route is the primary artery for Midwestern fans. Don’t forget that many travelers also look for flights like Atlanta to Las Vegas when planning group trips with friends from other states.

Travel Tips for Chicago to Las Vegas Flyers

• Check in online 24 hours in advance to secure your preferred boarding group, especially on Southwest.
• Drink plenty of water; the desert air at LAS is much drier than the humid air at ORD.
• Use the Airport Transit System (ATS) at O’Hare to move quickly between terminals and parking.
• Wear comfortable shoes; even if you stay on the Strip, you will likely walk several miles a day.
• Join airline loyalty programs like United MileagePlus or American AAdvantage to earn miles on this 1,500-mile journey.
• If traveling for a convention, book your ORD-LAS flight and hotel at least 3 months early.
• Keep your ID handy; security lines at both ORD and LAS can be long during peak morning hours.
• Call 1-800-518-9067 if you encounter any delays or need to rebook your itinerary.

Nearby and Related Routes

If you are exploring more of the United States, Faresterminal offers extensive guides for other high-traffic routes. Many passengers who fly ORD to LAS also frequently book trips like Los Angeles to New York (LAX-JFK), Chicago to Miami (ORD-MIA), or San Francisco to Seattle (SFO-SEA). You can find more information on these routes here:

• Washington to Las Vegas Flights (IAD-LAS)
• Atlanta to Chicago Flights (ATL-ORD)
• Dallas to Las Vegas Flights (DFW-LAS)