Cheap flights from Illinois (IL) to Las Vegas (LAS)

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How to find the cheapest flight from
Illinois to Las Vegas (LAS)

All the information you need to plan the best null to LAS flight in 2022: compare Illinois to Las Vegas flight prices with the expected peak season, weather and rainfall in Las Vegas.
What is the cheapest month to fly from Illinois to Las Vegas?

Flights from Illinois to Las Vegas lean towards being more expensive in December. Prices are generally better when you fly from Illinois to Las Vegas in August, with the cheapest ticket starting at $60.

How far in advance should I book a flight from Illinois to Las Vegas?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 13 days in advance, which can save you up to 1% on flights from Illinois to Las Vegas compared to booking the week you need them. Waiting 13 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $170. For sooner than that we have options available in the next 3 days from $174.

When is the cheapest time to fly from Illinois to Las Vegas (IL - LAS)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Las Vegas as you normally would.

Cheap flights from Illinois to Las Vegas in May, June 2022

The best prices found for Illinois to LAS flights for May, June
31 May - 2 Jun
$138pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Spirit Airlines
Non-Stop
STL
Lambert-St Louis
26 Jun - 5 Jul
$157pp
STL
Lambert-St Louis
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
STL
Lambert-St Louis
29 May - 2 Jun
$160pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Spirit Airlines
Non-Stop
STL
Lambert-St Louis

Illinois to Las Vegas 2022 flight deals

Cheap flights to Las Vegas from Illinois found for this year
9 Oct - 13 Oct
$113pp
MLI
Moline Quad-City
Allegiant Air
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Allegiant Air
Non-Stop
MLI
Moline Quad-City
14 Aug - 18 Aug
$133pp
MLI
Moline Quad-City
Allegiant Air
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Allegiant Air
Non-Stop
MLI
Moline Quad-City
9 Aug - 16 Aug
$149pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Non-stop flights to Las Vegas from Illinois

Save time with Illinois to Las Vegas direct flight deals
17 Aug - 23 Aug
$98pp
STL
Lambert-St Louis
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
STL
Lambert-St Louis
24 Aug - 30 Aug
$100pp
STL
Lambert-St Louis
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
STL
Lambert-St Louis
17 Aug - 23 Aug
$103pp
STL
Lambert-St Louis
Frontier
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
STL
Lambert-St Louis

Last minute flights from Illinois to Las Vegas

Late deals on round-trip flights to Las Vegas from Illinois, departing today and this week
31 May - 2 Jun
$138pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Spirit Airlines
Non-Stop
STL
Lambert-St Louis
31 May - 3 Jun
$162pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Spirit Airlines
Non-Stop
STL
Lambert-St Louis
31 May - 31 May
$163pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
LAS
Las Vegas Harry Reid Intl
LAS
Las Vegas Harry Reid Intl
Frontier
Non-Stop
STL
Lambert-St Louis

One-way flights to Harry Reid Intl from Illinois

The cheapest one-way flights from Illinois to Las Vegas
5:20 pm - 6:43 pm
Spirit Airlines
Nonstop
3h 23m
STL - LAS
Spirit Airlines
$93
FlightNetwork
4:14 pm - 5:51 pm
Frontier
Nonstop
3h 37m
STL - LAS
Frontier
$94
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Illinois</span> to <span class="emphasized">Las Vegas</span> flights.

Flight FAQs

From Illinois to Las Vegas

What airport do you fly into for flights to Las Vegas from Illinois?

Las Vegas Harry Reid Intl (LAS), located 6.2 mi from the city center, is the airport you fly into when you book flights from Illinois to Las Vegas.

Which airlines flying from Illinois to Las Vegas Harry Reid Intl have flexible cancellations due to COVID-19?

Spirit Airlines, Frontier, and American Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Illinois to Las Vegas for under $100 on Cheapflights?

Yes, there are multiple flights from Illinois to Las Vegas for under $100. The cheapest flight booked recently is on Frontier for just $100, but on average you can expect to pay $126.

Are there nonstop flights from Illinois to Las Vegas for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Illinois to Las Vegas under $100. A good price for a nonstop flight from Illinois to Las Vegas is less than $129.

Are there last-minute flights available from Illinois to Las Vegas for under $200?

There are currently 20+ open flights from Illinois to Las Vegas within the next 7 days for less than $200.

What days are nonstop flights available from Illinois to Las Vegas?

Days when nonstop flights are available for this flight are: Sunday, Monday, Wednesday, Thursday, Friday, Saturday.

How many flights depart from Illinois to Las Vegas on average per day?

Travelers can expect 26 flights from Illinois to Las Vegas on average per day.
Morning (6am - Noon) - 27% of flight departures
Afternoon (Noon - 6pm) - 42% of flight departures
Evening (6pm - Midnight) - 31% of flight departures

How long is the flight from Illinois to Las Vegas?

A quick flight from Illinois to Las Vegas can take about 3h 26m. Frontier provides one of the quickest options available for as low as $100. Airlines will cover a distance of 1519 mi. All flights are typically nonstop.

What are the cheapest airlines to fly from Illinois to Las Vegas one-way?

The cheapest airlines for a one-way flight from Illinois to Las Vegas are Frontier ($50), Allegiant Air ($53), and Spirit Airlines ($68).

What are the cheapest flights from Illinois to Las Vegas?

Looking at all options, your cheapest flight can be booked for $100. While the most popular route (Chicago O'Hare Intl - Las Vegas Harry Reid Intl) can be booked for $146 on average our data indicates $947 when flying from Illinois to Las Vegas.

What are the most popular routes from Illinois to Las Vegas?

While some choose either Chicago Midway - Las Vegas Harry Reid Intl or Lambert-St Louis - Las Vegas Harry Reid Intl, Chicago O'Hare Intl - Las Vegas Harry Reid Intl is the most popular route from Illinois to Las Vegas.

What are the most reliable airlines from Illinois to Las Vegas?

The top 3 most reliable airlines when flying from Illinois to Las Vegas are Iberia (84%), Air Canada (84%) and United Airlines (82%).

What are the most popular airlines that fly from Illinois to Las Vegas?

American Airlines, Alaska Airlines and Delta are the most popular airlines when flying from Illinois to Las Vegas.

COVID Restrictions

View COVID Travel Restrictions for Las Vegas, NV

Do I need a COVID test to fly to Las Vegas from Illinois?

Information is based on travel restrictions for travel to Las Vegas Harry Reid Intl within the United States

Most visitors from Illinois need to provide a negative COVID-19 test result and/or quarantine to enter Las Vegas Harry Reid Intl.

COVID-19 testing requirements
Visitors from Illinois must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Las Vegas Harry Reid Intl.

Quarantine requirements
Visitors from Illinois are not required to quarantine after entering Las Vegas Harry Reid Intl.

Do I need a test to fly back to Illinois from Las Vegas?

Returning to Illinois from Las Vegas Harry Reid Intl

COVID-19 testing requirements
Visitors from Las Vegas Harry Reid Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Illinois.

Quarantine requirements
Visitors from Las Vegas Harry Reid Intl are not required to quarantine after entering Illinois.

Hide COVID Travel Restrictions for Las Vegas, NV

Departure points for flights from Illinois to Las Vegas

Select to see more specific information for flights to Las Vegas from all departure points in Illinois.

Destination information for Las Vegas

Things to know before you go - useful duration and weather info for your trip from Illinois to Las Vegas.
Flight duration from Illinois to LAS
3h 22m
Average temperature for May in Las Vegas
91.4 °F
Avg rainfall for May in Las Vegas
0.1 ″

Airports servicing

Bloomington (BMI)
Champaign (CMI)
Decatur (DEC)
Moline (MLI)
Marion (MWA)

Airports servicing Las Vegas

Top 9 airlines flying from Illinois to Las Vegas Harry Reid Intl

The chart below displays the airlines Cheapflights users traveling from Illinois to Las Vegas choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Juneyao Airlines
$9 $20 No cancel fee 66%

We couldn't confirm the COVID-19 safety measures taken by Juneyao Airlines. Please check directly on their website for additional information.

Spirit Airlines
$65 $203 No cancel fee 65%
Frontier
$67 $225 No cancel fee 62%
United Airlines
$97 $378 No cancel fee 69%
Allegiant Air
$101 $291 No cancel fee 88%
Delta
$107 $372 No cancel fee N/A
American Airlines
$110 $425 No cancel fee 71%
Sun Country Air
$141 $304 No cancel fee 83%
Alaska Airlines
$158 $458 No cancel fee 75%
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