$69 Cheap Flights from Chicago (MDW) to Las Vegas (LAS)

View $69 flight on Mon, May 19, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Chicago to Las Vegas (MDW-LAS)

Prices were available within the past 7 days and start at $69 for one-way flights and $138 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, May 19 - Fri, May 23
MDW
Chicago
LAS
Las Vegas
$138 Roundtrip, found 1 hour ago
$138
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Mon, May 19 from Chicago to Las Vegas, returning Fri, May 23, priced at $138 found 1 hour ago
Frontier Airlines
Mon, Jun 30 - Fri, Jul 4
MDW
Chicago
LAS
Las Vegas
$146 Roundtrip, found 3 hours ago
$146
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Mon, Jun 30 from Chicago to Las Vegas, returning Fri, Jul 4, priced at $146 found 3 hours ago
Frontier Airlines
Mon, May 19 - Sun, May 25
MDW
Chicago
LAS
Las Vegas
$151 Roundtrip, just found
$151
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, May 19 from Chicago to Las Vegas, returning Sun, May 25, priced at $151 just found
Frontier Airlines
Sun, May 25 - Fri, May 30
MDW
Chicago
LAS
Las Vegas
$163 Roundtrip, found 5 hours ago
$163
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Sun, May 25 from Chicago to Las Vegas, returning Fri, May 30, priced at $163 found 5 hours ago
Frontier Airlines
Sun, May 18 - Sun, May 25
MDW
Chicago
LAS
Las Vegas
$164 Roundtrip, found 7 hours ago
$164
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Sun, May 18 from Chicago to Las Vegas, returning Sun, May 25, priced at $164 found 7 hours ago
Frontier Airlines
Sun, Jun 1 - Fri, Jul 4
MDW
Chicago
LAS
Las Vegas
$167 Roundtrip, just found
$167
Roundtrip
just found
Select Frontier Airlines flight, departing Sun, Jun 1 from Chicago to Las Vegas, returning Fri, Jul 4, priced at $167 just found
Frontier Airlines
Sun, May 11 - Sun, May 18
MDW
Chicago
LAS
Las Vegas
$169 Roundtrip, found 1 hour ago
$169
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sun, May 11 from Chicago to Las Vegas, returning Sun, May 18, priced at $169 found 1 hour ago
Frontier Airlines
Sun, May 4 - Fri, May 23
MDW
Chicago
LAS
Las Vegas
$171 Roundtrip, found 5 days ago
$171
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sun, May 4 from Chicago to Las Vegas, returning Fri, May 23, priced at $171 found 5 days ago
Southwest Airlines
Sat, May 17 - Sun, May 25
MDW
Chicago
LAS
Las Vegas
$177 Roundtrip, found 5 hours ago
$177
Roundtrip
found 5 hours ago
Select Southwest Airlines flight, departing Sat, May 17 from Chicago to Las Vegas, returning Sun, May 25, priced at $177 found 5 hours ago
Delta
Wed, May 21 - Fri, May 23
MDW
Chicago
LAS
Las Vegas
$188 Roundtrip, just found
$188
Roundtrip
just found
Select Delta flight, departing Wed, May 21 from Chicago to Las Vegas, returning Fri, May 23, priced at $188 just found
Flights from Chicago (MDW) to Las Vegas (LAS)
Origin airport
Midway Intl.
Destination airport
Harry Reid Intl.
Airlines serving
Delta, Frontier Airlines, Southwest Airlines
Roundtrip price
$138
Distance
1517 mi

Chicago to Las Vegas Flights

The cheapest times to fly from Chicago to Las Vegas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to Las Vegas are during the month of May. You can find some of the cheapest flights from Chicago to Las Vegas with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Chicago to Las Vegas

Sunday is one of the best days to book for cheap flights from Chicago to Las Vegas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Chicago to Las Vegas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $69 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to Las Vegas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to Las Vegas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Midway Intl. Airport (MDW) to Harry Reid Intl. Airport (LAS) cost?
Cheap return fares from Midway Intl. Airport (MDW) to Harry Reid Intl. Airport (LAS) start from $138. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines flight leaving MDW on May 19 2025 and touching down at LAS. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from MDW to LAS?
The cheapest flights from MDW to LAS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Midway Intl. Airport (MDW) to Harry Reid Intl. Airport (LAS)?
Board a direct flight with Southwest Airlines and go straight from Midway Intl. Airport (MDW) to Harry Reid Intl. Airport (LAS).
What is the cheapest airline that flies from MDW to LAS?
Take off from MDW to LAS with Frontier Airlines. This carrier currently has the cheapest one-way ticket for this route, starting at $69. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from MDW on May 25 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Midway Intl. Airport (MDW) to Harry Reid Intl. Airport (LAS)?
Every day on average, 6 nonstop flights operate from Midway Intl. Airport (MDW) to Harry Reid Intl. Airport (LAS). Pick the departure time that best fits your itinerary.
What are the most popular departure times for flights from Midway Intl. Airport (MDW) to Harry Reid Intl. Airport (LAS)?
More travelers fly between MDW and LAS at 12 PM than at any other point in the day. Looking for a quieter experience? Try choosing a quieter departure window and you could save on your fare as well.
What day of the week has the most flights from MDW to LAS?
If you fly on a Friday, you’ll get the largest range of choices for flights from Midway Intl. Airport (MDW) to Harry Reid Intl. Airport (LAS).
What is the earliest flight from Midway Intl. Airport (MDW) to Harry Reid Intl. Airport (LAS)?
The earliest flight departing from Midway Intl. Airport (MDW) is at around 5:30AM UTC-6. Catch this flight and you’ll reach Harry Reid Intl. Airport (LAS) at approximately 7:45AM UTC-8. The total flight duration is 4h 15m.
How long does it take to fly from Midway Intl. Airport (MDW) to Harry Reid Intl. Airport (LAS)?
It usually takes 4 hours and 9 minutes to fly the 1,500 mi from MDW to LAS.
What is the best time to fly from Midway Intl. Airport (MDW) to Harry Reid Intl. Airport (LAS)?
To avoid possible delays on the Midway Intl. Airport (MDW) to Harry Reid Intl. Airport (LAS) route, travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Las Vegas from Midway Intl. Airport (MDW)?
Check out your flight options from Midway Intl. Airport (MDW) to Harry Reid Intl. Airport (LAS). This is the only Las Vegas airport you can arrive at if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from Midway Intl. Airport (MDW) to Harry Reid Intl. Airport (LAS) last-minute?
Waiting until just before your trip to book your flight from MDW to LAS generally means paying more. While you may come across some last-minute discounts, there’s no guarantee. Be flexible with your travel plans for the best chance of scoring a bargain.
Is it cheaper to book a MDW to LAS flight and hotel package?
You’ll typically save money by booking a MDW to LAS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s easy to manage everything in one convenient place. After choosing your ideal flights and accommodations, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Midway Intl. Airport (MDW) to Harry Reid Intl. Airport (LAS)?
If you reserved your MDW to LAS flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

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*Available to One Key members.