Spirit's Big Front Seats offer 11 inches more legroom, ideal for comfort.
Spirit's self-service bag drop saves time at the airport.
$69+ Cheap flights from Las Vegas (LAS) to O'Hare Intl (ORD)
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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — ORD
Jul 8 — Jul 151
1 adult, Economy
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Find cheap flights from Las Vegas to O'Hare Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Las Vegas Harry Reid Intl to Chicago O'Hare Intl are usually found in September or August, booked 86 days in advance, depart on a Friday or Thursday and return on a Tuesday
Cheap flight deals from Las Vegas to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to O'Hare Intl (ORD). 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 July 3, 2025.
Round-trip from | $118 (Priceline) |
|---|---|
One-way from | $69 (Frontier) |
Popular in | December |
Cheapest in | September |
Average price | $244 |
Good round-trip deal | $179 or less |
Good one-way deal | $128 or less |
Find flight deals from Las Vegas to O'Hare Intl
Cheapest flights from Las Vegas to O'Hare IntlExplore the most affordable flight options available from Las Vegas to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.
Explore the most affordable flight options available from Las Vegas to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.
This Priceline deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:00 amLAS - ORD
Nonstop3h 48mFrontier
Sat 9/205:35 pmORD - LAS
1 stop8h 15mFrontier
Deal found 7/2![Frontier logo]()
$118
This FlightHub deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/78:35 amLAS - ORD
Nonstop3h 38mMultiple Airlines
Fri 8/89:56 pmORD - LAS
Nonstop4h 09mMultiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$119
This FlightHub deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/178:35 amLAS - ORD
Nonstop3h 38mSpirit Airlines
Sun 7/207:08 amORD - LAS
Nonstop3h 58mSpirit Airlines
Deal found 7/1![Spirit Airlines logo]()
$124
This Southwest deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/155:55 pmLAS - ORD
Nonstop3h 45mSouthwest
Sun 8/245:25 pmORD - LAS
Nonstop4h 00mSouthwest
Deal found 7/3![Southwest logo]()
$159
Cheapflights Fare Finder
Customize your flight search to find flights from Las Vegas to O'Hare Intl 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 2,558,603 searches. Data last updated July 3, 2025.
Use the filters below to find and compare flights from Las Vegas to Chicago O'Hare Intl Airport that are best for you.
Fly from
Las Vegas
Fly to
O'Hare Intl
Route
Depart
Return
Price
Las VegasChicago
LAS - ORD
LASORD
Las Vegas Harry Reid Intl
Thu 9/18
6:00 am-11:48 am
Nonstop3h 48m
Chicago O'Hare Intl
Sat 9/20
5:35 pm-11:50 pm
1 stop8h 15m
$118
Las VegasChicago
LAS - ORD
LASORD
Las Vegas Harry Reid Intl
Thu 8/7
8:35 am-2:13 pm
Nonstop3h 38m
Chicago O'Hare Intl
Fri 8/8
9:56 pm-12:05 am
Nonstop4h 09m
$119
Las VegasChicago
LAS - ORD
LASORD
Las Vegas Harry Reid Intl
Thu 7/17
12:34 am-6:03 am
Nonstop3h 29m
Chicago O'Hare Intl
Sun 7/20
7:08 am-9:06 am
Nonstop3h 58m
$124
Las VegasChicago
LAS - ORD
LASORD
Las Vegas Harry Reid Intl
Fri 8/15
5:55 pm-11:40 pm
Nonstop3h 45m
Chicago O'Hare Intl
Sun 8/24
5:25 pm-7:25 pm
Nonstop4h 00m
$159
Las VegasChicago
LAS - ORD
LASORD
Las Vegas Harry Reid Intl
Sun 9/28
6:00 am-11:48 am
Nonstop3h 48m
$69
Las VegasChicago
LAS - ORD
LASORD
Las Vegas Harry Reid Intl
Thu 7/17
8:35 am-2:13 pm
Nonstop3h 38m
$71
Las VegasChicago
LAS - ORD
LASORD
Las Vegas Harry Reid Intl
Tue 10/14
4:07 pm-9:55 pm
Nonstop3h 48m
$80
Las VegasChicago
LAS - ORD
LASORD
Las Vegas Harry Reid Intl
Fri 11/14
2:55 pm-11:59 pm
1 stop7h 04m
$89
Las VegasChicago
LAS - ORD
LASORD
Las Vegas Harry Reid Intl
Sun 11/2
11:47 pm-5:23 am
Nonstop3h 36m
$94
Las VegasChicago
LAS - ORD
LASORD
Las Vegas Harry Reid Intl
Wed 9/10
12:00 pm-11:05 pm
2 stops9h 05m
$109
Showing 1-10 of 11 results
The best insider tips for Las Vegas to Chicago O'Hare Intl Airport flights
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Las Vegas to Chicago O'Hare Intl Airport trip
Airlines
![Spirit Airlines]()
Spirit Airlines
![United Airlines]()
United Airlines
United's Economy Plus offers extra legroom and priority boarding.
United's Polaris Lounges provide exclusive amenities like showers and dining.
![Frontier]()
Frontier
Frontier's UpFront Plus offers a guaranteed empty middle seat for extra comfort.
Frontier's early morning flights have better on-time performance, reducing delays.
Airports
Our travel experts
Best time to book a flight from Las Vegas to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Las Vegas 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 Las Vegas to Chicago O'Hare Intl Airport
How far ahead should I book a flight from Las Vegas to Chicago O'Hare Intl Airport?
Use this chart to determine the optimal time to book a round-trip flight from Las Vegas to O'Hare Intl. Price data was last updated on June 27, 2025.
Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights from Las Vegas to Chicago O'Hare Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Las Vegas to Chicago O'Hare Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Las Vegas to Chicago O'Hare Intl Airport (average of $245). Flying from Las Vegas to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 LAS to ORD?
Find hourly flight availability from Las Vegas to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.
Unlike at noon, when flights are generally more expensive, you can save up to 69% on flights from Las Vegas to Chicago O'Hare Intl Airport by exploring options for tickets in the afternoon.
What is the cheapest day to fly from Las Vegas to Chicago O'Hare Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from Las Vegas to O'Hare Intl. Price data was last updated on June 29, 2025.
Travelers seeking maximum savings on their Las Vegas to Chicago O'Hare Intl Airport flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Las Vegas to Chicago O'Hare Intl Airport
Explore weekly flight availability from Las Vegas to O'Hare Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 3, 2025.
The most flights from LAS to ORD are scheduled on a Thursday (46 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).
How much does it cost to fly round-trip from Las Vegas to Chicago O'Hare Intl Airport?
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated July 3, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Las Vegas to Chicago O'Hare Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.2
Crew
8.6
Overall
8.0
Entertainment
7.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentGina,Apr 2025
LAS - DEN
Boarding
8.2
Crew
8.6
Overall
8.0
Entertainment
7.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentGina,Apr 2025
LAS - DEN
Boarding
8.2
Crew
8.6
Overall
8.0
Entertainment
7.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentGina,Apr 2025
LAS - DEN
Boarding
8.2
Crew
8.6
Overall
8.0
Entertainment
7.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentGina,Apr 2025
LAS - DEN
Boarding
8.2
Crew
8.6
Overall
8.0
Entertainment
7.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentGina,Apr 2025
LAS - DEN
Boarding
8.2
Crew
8.6
Overall
8.0
Entertainment
7.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentGina,Apr 2025
LAS - DEN
Related info for your journey
Find useful and relevant information for your journey from Las Vegas to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Las Vegas to O'Hare Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Las Vegas to O'Hare Intl
Discover the top 5 airlines that operate flights from Las Vegas to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$50 | Average$165 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$70 | Average$164 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$139 | Average$330 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$155 | Average$278 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$179 | Average$344 | FlexibilityNo cancel fee | On-time63% |