$44 Cheap Flights from Chicago (ORD) to Las Vegas (LAS)

View $44 flight on Tue, May 20, 2025Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key
Find available prices by choosing your travel dates.

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

Prices were available within the past 7 days and start at $44 for one-way flights and $98 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Tue, May 20 - Wed, May 28
ORD
Chicago
LAS
Las Vegas
$98 Roundtrip, found 2 hours ago
$98
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Tue, May 20 from Chicago to Las Vegas, returning Wed, May 28, priced at $98 found 2 hours ago
Spirit Airlines
Tue, May 20 - Sun, May 25
ORD
Chicago
LAS
Las Vegas
$121 Roundtrip, just found
$121
Roundtrip
just found
Select Spirit Airlines flight, departing Tue, May 20 from Chicago to Las Vegas, returning Sun, May 25, priced at $121 just found
Frontier Airlines
Mon, May 19 - Wed, May 28
ORD
Chicago
LAS
Las Vegas
$125 Roundtrip, just found
$125
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, May 19 from Chicago to Las Vegas, returning Wed, May 28, priced at $125 just found
Spirit Airlines
Tue, May 20 - Sat, May 24
ORD
Chicago
LAS
Las Vegas
$129 Roundtrip, just found
$129
Roundtrip
just found
Select Spirit Airlines flight, departing Tue, May 20 from Chicago to Las Vegas, returning Sat, May 24, priced at $129 just found
Spirit Airlines
Tue, May 20 - Sun, May 25
ORD
Chicago
LAS
Las Vegas
$133 Roundtrip, just found
$133
Roundtrip
just found
Select Spirit Airlines flight, departing Tue, May 20 from Chicago to Las Vegas, returning Sun, May 25, priced at $133 just found
Frontier Airlines
Sun, May 18 - Wed, May 28
ORD
Chicago
LAS
Las Vegas
$136 Roundtrip, found 3 hours ago
$136
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Sun, May 18 from Chicago to Las Vegas, returning Wed, May 28, priced at $136 found 3 hours ago
Spirit Airlines
Sun, May 11 - Wed, May 28
ORD
Chicago
LAS
Las Vegas
$138 Roundtrip, found 9 hours ago
$138
Roundtrip
found 9 hours ago
Select Spirit Airlines flight, departing Sun, May 11 from Chicago to Las Vegas, returning Wed, May 28, priced at $138 found 9 hours ago
American Airlines
Tue, May 20 - Wed, May 21
ORD
Chicago
LAS
Las Vegas
$189 Roundtrip, just found
$189
Roundtrip
just found
Select American Airlines flight, departing Tue, May 20 from Chicago to Las Vegas, returning Wed, May 21, priced at $189 just found
United
Wed, May 14 - Sat, May 17
ORD
Chicago
LAS
Las Vegas
$189 Roundtrip, just found
$189
Roundtrip
just found
Select United flight, departing Wed, May 14 from Chicago to Las Vegas, returning Sat, May 17, priced at $189 just found
Southwest Airlines
Wed, May 21 - Wed, May 28
ORD
Chicago
LAS
Las Vegas
$209 Roundtrip, just found
$209
Roundtrip
just found
Select Southwest Airlines flight, departing Wed, May 21 from Chicago to Las Vegas, returning Wed, May 28, priced at $209 just found

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS) cost?
You can land cheap return flights from O’Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS) starting from $104. Snag a seat and get ready to go. 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 Spirit Airlines flight leaving ORD on May 13 2025 and touching down at LAS. The price was last updated on April 22 2025 and has not changed since.
What is the cheapest month to fly from ORD to LAS?
The cheapest flights from ORD 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 O'Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS)?
When departing from O’Hare Intl. Airport (ORD), 5 carriers can take you directly to Harry Reid Intl. Airport (LAS) without stopovers, including:

  • United Airlines
  • American Airlines
  • Spirit Airlines
  • Southwest Airlines
  • Frontier Airlines

What is the cheapest airline that flies from ORD to LAS?
Currently, the cheapest carrier offering one-way flights from ORD to LAS is Spirit Airlines. You can jet off on this route from $34. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from ORD on May 20 2025. Prices were last updated on April 22 2025 and have not changed since.
How many flights per day from O'Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS)?
When flying out of O’Hare Intl. Airport (ORD), you’ll have a choice from an average of 12 daily nonstop flights to Harry Reid Intl. Airport (LAS).
What are the most popular departure times for flights from O'Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS)?
The 8 AM departures from ORD to LAS see the highest demand. They can also be more expensive. If you’re hoping to save money, book during off-peak hours.
What day of the week has the most flights from ORD to LAS?
If you travel on a Friday, you’ll get the largest range of options for flights from O’Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS).
What is the earliest flight from O'Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS)?
The earliest flight departing from O’Hare Intl. Airport (ORD) is at around 5:45AM UTC-6. Hop on this flight and you’ll arrive at Harry Reid Intl. Airport (LAS) at approximately 7:55AM UTC-8. The total flight duration is 4h 10m.
How long does it take to fly from O'Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS)?
It takes about 4 hours and 8 minutes to travel the 1,500 mi from ORD to LAS.
What airline has the least delays from ORD to LAS?
United Airlines has the best track record for on-time direct flights from O’Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS), with an on-time rating of 82%. Use the Expedia App to see your journey status before you leave and receive notifications about any changes.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS)?
To avoid potential delays on the O’Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS) route, fly before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**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 O'Hare Intl. Airport (ORD)?
Compare your flight options from O’Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS). This is the only airport in Las Vegas you can land at if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS) last-minute?
Last-minute fares from ORD to LAS are typically more expensive. To lock in the best prices, start looking for flights early. That said, if you’re flexible with your travel plans, you may land a cheap ticket just before your departure.
Is it cheaper to book an ORD to LAS flight and hotel package?
You’ll typically save money by booking an ORD 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 it all in one convenient place. After choosing your preferred flights and accommodations, consider adding extras including tours, activities and car rentals.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS)?
It’s usually possible to reschedule or cancel your ORD to LAS flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline’s policies in your itinerary to see what changes are possible and if any costs are involved. You’ll also find more details on our Customer Service portal.
*Available to One Key members.