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Cheap flights from Chicago O'Hare Intl Airport to Las Vegas from C$ 122

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LAS
16 May — 23 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Chicago O'Hare Intl to Las Vegas Harry Reid Intl are usually found in August or January, booked 59 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from O'Hare Intl to Las Vegas

Enter your travel dates to find the best prices.

Cheapest flights from O'Hare Intl to Las Vegas
Explore the most affordable flight options available from O'Hare Intl to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 April 2026.

Mon 11/54:48 p.m.
ORD
-
LAS
1 stop9h 01m
Frontier
Mon 18/56:30 a.m.
LAS
-
ORD
1 stop12h 02m
Frontier
Deal found 13/4C$ 260
Thu 27/89:59 p.m.
ORD
-
LAS
Nonstop3h 51m
Spirit Airlines
Wed 2/97:30 a.m.
LAS
-
ORD
Nonstop3h 29m
Spirit Airlines
Deal found 13/4C$ 270
Sun 6/99:59 p.m.
ORD
-
LAS
Nonstop3h 51m
Spirit Airlines
Tue 8/97:30 a.m.
LAS
-
ORD
Nonstop3h 29m
Spirit Airlines
Deal found 12/4C$ 305
Fri 28/86:50 a.m.
ORD
-
LAS
1 stop14h 12m
Spirit Airlines
Wed 2/97:30 a.m.
LAS
-
ORD
Nonstop3h 29m
Spirit Airlines
Deal found 12/4C$ 322
Tue 19/59:00 a.m.
ORD
-
LAS
1 stop8h 29m
Alaska Airlines
Wed 17/62:38 p.m.
LAS
-
ORD
1 stop6h 58m
Alaska Airlines
Deal found 15/4C$ 345
Wed 20/59:10 a.m.
ORD
-
LAS
Nonstop4h 15m
United Airlines
Sat 23/512:36 a.m.
LAS
-
ORD
Nonstop3h 44m
United Airlines
Deal found 16/4C$ 354
Sun 24/512:42 p.m.
ORD
-
LAS
Nonstop4h 04m
United Airlines
Wed 27/54:25 p.m.
LAS
-
ORD
1 stop6h 19m
United Airlines
Deal found 15/4C$ 367
Wed 13/51:05 p.m.
ORD
-
LAS
Nonstop4h 14m
United Airlines
Sat 16/55:00 p.m.
LAS
-
ORD
Nonstop3h 47m
United Airlines
Deal found 13/4C$ 370
Tue 5/510:52 a.m.
ORD
-
LAS
Nonstop4h 11m
United Airlines
Tue 12/511:59 p.m.
LAS
-
ORD
Nonstop3h 38m
United Airlines
Deal found 12/4C$ 377
Sat 9/56:15 a.m.
ORD
-
LAS
Nonstop4h 00m
Southwest
Fri 29/58:10 a.m.
LAS
-
ORD
Nonstop3h 45m
Southwest
Deal found 13/4C$ 381

Find flight deals from O'Hare Intl to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 16 April 2026.

Round-trip from

C$ 260

One-way from

C$ 122

Popular in

March

Cheapest in

August

Average price

C$ 454

Good round-trip deal

C$ 379 or less
Frontier
  • Frontier
  • 11/5-18/5
  • 2 total stops
  • 21h 03m total
  • Chicago to Las Vegas
Search Deals
Frontier
  • Frontier
  • 27/5
  • 2 total stops
  • 18h 26m total
  • Chicago to Las Vegas
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 69 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Las Vegas Harry Reid Intl.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Las Vegas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 16 April 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 20/5

6:15 a.m.-8:15 a.m.

Nonstop4h 00m

Las Vegas Harry Reid Intl

Sat 23/5

1:45 p.m.-10:20 p.m.

1 stop6h 35m

C$ 406

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 18/5

2:40 p.m.-11:55 p.m.

1 stop11h 15m

Las Vegas Harry Reid Intl

Wed 20/5

8:10 a.m.-1:55 p.m.

Nonstop3h 45m

C$ 414

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 7/10

9:20 a.m.-4:42 p.m.

1 stop9h 22m

Las Vegas Harry Reid Intl

Wed 14/10

12:40 p.m.-11:59 p.m.

1 stop9h 19m

C$ 436

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sat 8/8

9:00 a.m.-11:08 a.m.

Nonstop4h 08m

Las Vegas Harry Reid Intl

Tue 11/8

1:37 p.m.-9:12 p.m.

1 stop5h 35m

C$ 459

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Tue 11/8

4:35 p.m.-8:36 p.m.

1 stop6h 01m

Las Vegas Harry Reid Intl

Sat 15/8

3:52 p.m.-9:42 p.m.

Nonstop3h 50m

C$ 459
Quickest round-trip

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Fri 5/6

12:42 p.m.-2:46 p.m.

Nonstop4h 04m

Las Vegas Harry Reid Intl

Sat 6/6

12:36 a.m.-6:20 a.m.

Nonstop3h 44m

C$ 477

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sun 7/6

7:45 p.m.-9:54 p.m.

Nonstop4h 09m

Las Vegas Harry Reid Intl

Wed 10/6

12:36 a.m.-6:20 a.m.

Nonstop3h 44m

C$ 491

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Fri 24/7

5:00 a.m.-9:07 a.m.

1 stop6h 07m

Las Vegas Harry Reid Intl

Mon 27/7

7:03 p.m.-12:50 a.m.

Nonstop3h 47m

C$ 505

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 6/7

5:00 a.m.-9:07 a.m.

1 stop6h 07m

Las Vegas Harry Reid Intl

Thu 9/7

10:25 a.m.-4:21 p.m.

Nonstop3h 56m

C$ 505

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Thu 28/5

4:15 p.m.-11:05 p.m.

2 stops8h 50m

Las Vegas Harry Reid Intl

Sun 31/5

11:40 p.m.-12:50 p.m.

1 stop11h 10m

C$ 517

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/4

Showing 1-10 of 24 resultsSorted by cheapest first
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Best time to book a flight from O'Hare Intl to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Las Vegas

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Las Vegas?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Las Vegas. Price data was last updated on 10 April 2026.

To ensure you get the cheapest price possible for a flight from Chicago O'Hare Intl Airport to Las Vegas, you should look to book at least 59 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Las Vegas?

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Las Vegas (average of C$ 80). Flying from Chicago O'Hare Intl Airport to Las Vegas in March is currently the most expensive (average of C$ 191). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ORD to LAS?

Find hourly flight availability from O'Hare Intl to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 April 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 76% on flights from Chicago O'Hare Intl Airport to Las Vegas by exploring options for tickets in the morning.

How much does it cost to fly round-trip from Chicago O'Hare Intl Airport to Las Vegas?

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Las Vegas from Chicago O'Hare Intl?

    Most people fly into Las Vegas Harry Reid Intl (LAS) if they book a flight to Las Vegas from Chicago O'Hare Intl. On average, Harry Reid Intl has 37 inbound flights from Chicago O'Hare Intl per day from 0 airlines. Las Vegas Harry Reid Intl is conveniently located just 10.0 km from Las Vegas’s city centre.

  • How long is the flight from Chicago O'Hare Intl Airport to Las Vegas?

    Southwest and United Airlines can get you from Chicago O'Hare Intl Airport to Las Vegas in just under 4h. Your travel time can differ by up to 1h 48m. There are 2430 km between Chicago O'Hare Intl Airport and Las Vegas. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Las Vegas?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago O'Hare Intl Airport to Las Vegas on time: Finnair (100%), Avianca (95%), Turkish Airlines (91%).

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Las Vegas?

    Looking for the cheapest flight from Chicago O'Hare Intl Airport to Las Vegas? While on average our users pay C$ 480, our data indicates the cheapest price to be C$ 138. The most popular route (Chicago O'Hare Intl - Las Vegas Harry Reid Intl), is priced around C$ 310.

  • Can I find deals for flights from O'Hare Intl to Las Vegas that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Las Vegas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Las Vegas.

  • Can I find deals for business class flights from O'Hare Intl to Las Vegas?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Las Vegas?

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Las Vegas (average of C$ 80). Flying from Chicago O'Hare Intl Airport to Las Vegas in March is currently the most expensive (average of C$ 191). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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