Find flights
When to book
FAQs & Tips
Direct Flights
Deals

LAS

Find cheap flights from Illinois to Las Vegas from $32

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Las Vegas departing on 5/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
lun. 5/27
lun. 6/3

Search hundreds of travel sites at once for deals on flights to Las Vegas

In the last 7 days travelers have searched 43,623,357 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Good to know

Low season

January

High season

March

Cheapest flight

$32
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from St. Louis to Las Vegas

FAQs for booking flights from Illinois to Las Vegas

  • How does KAYAK find such low prices on flights from Illinois to Las Vegas?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Las Vegas.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Las Vegas?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Las Vegas from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Illinois to Las Vegas?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Las Vegas with an airline and back to Illinois with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Las Vegas?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Las Vegas from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Illinois to Las Vegas?

Find which airlines fly direct from Illinois to Harry Reid Intl, which days they fly and book direct flights.

Nonstop departures

Illinois to Las Vegas Harry Reid Intl

Monday

ANA, Advanced Air, Aer Lingus, +69 more

ANA, Advanced Air, +70 more

Tuesday

ANA, Advanced Air, Aer Lingus, +64 more

ANA, Advanced Air, +65 more

Wednesday

ANA, Advanced Air, Aer Lingus, +66 more

ANA, Advanced Air, +67 more

Thursday

ANA, Advanced Air, Aer Lingus, +69 more

ANA, Advanced Air, +70 more

Friday

ANA, Advanced Air, Aer Lingus, +70 more

ANA, Advanced Air, +71 more

Saturday

ANA, Advanced Air, Aer Lingus, +67 more

ANA, Advanced Air, +68 more

Sunday

ANA, Advanced Air, Aer Lingus, +68 more

ANA, Advanced Air, +69 more

See more direct flights

Nonstop returns

Las Vegas Harry Reid Intl to Illinois

Monday

ANA, Advanced Air, Aer Lingus, +69 more

ANA, Advanced Air, +70 more

Tuesday

ANA, Advanced Air, Aer Lingus, +64 more

ANA, Advanced Air, +65 more

Wednesday

ANA, Advanced Air, Aer Lingus, +66 more

ANA, Advanced Air, +67 more

Thursday

ANA, Advanced Air, Aer Lingus, +69 more

ANA, Advanced Air, +70 more

Friday

ANA, Advanced Air, Aer Lingus, +70 more

ANA, Advanced Air, +71 more

Saturday

ANA, Advanced Air, Aer Lingus, +67 more

ANA, Advanced Air, +68 more

Sunday

ANA, Advanced Air, Aer Lingus, +68 more

ANA, Advanced Air, +69 more

See more direct flights
See more direct flights

Book cheap flights from Illinois to Las Vegas

Recent round-trip flight deals

6/5mer.
nonstopFrontier
3h 48mSTL-LAS
6/6jeu.
nonstopFrontier
3h 14mLAS-STL
$77
5/15mer.
nonstop
3h 32mSTL-LAS
5/21mar.
1 stop
10h 10mLAS-STL
$78
5/7mar.
1 stopSpirit Airlines
15h 45mSTL-LAS
5/10ven.
nonstopSpirit Airlines
3h 18mLAS-STL
$93
5/17ven.
nonstopSpirit Airlines
3h 33mSTL-LAS
5/20lun.
nonstopSpirit Airlines
3h 18mLAS-STL
$102
8/11dim.
nonstopAllegiant Air
3h 34mRFD-LAS
8/15jeu.
nonstopAllegiant Air
3h 29mLAS-RFD
$157
8/11dim.
nonstopAllegiant Air
3h 34mRFD-LAS
8/15jeu.
nonstopAllegiant Air
3h 29mLAS-RFD
$173
5/17ven.
1 stopSun Country Air
16h 56mORD-LAS
5/20lun.
1 stopSun Country Air
7h 08mLAS-ORD
$182
9/4mer.
1 stopAmerican Airlines
6h 36mCMI-LAS
9/10mar.
1 stopAmerican Airlines
5h 09mLAS-CMI
$188
6/16dim.
1 stopSun Country Air
18h 29mORD-LAS
6/20jeu.
1 stopSun Country Air
17h 17mLAS-ORD
$215
5/24ven.
nonstopAmerican Airlines
4h 08mORD-LAS
5/27lun.
nonstopAmerican Airlines
3h 43mLAS-ORD
$239

Search by stops

Search by airline

Search by price

Recent one-way flight deals

5/11sam.
1 stopSpirit Airlines
13h 03mSTL-LAS
$32
5/27lun.
nonstopSpirit Airlines
3h 33mSTL-LAS
$39
5/5dim.
nonstopFrontier
3h 52mSTL-LAS
$42
5/15mer.
1 stopFrontier
6h 24mSTL-LAS
$46
5/26dim.
1 stopSun Country Air
16h 21mORD-LAS
$79
5/12dim.
nonstopAllegiant Air
3h 46mRFD-LAS
$80
5/13lun.
1 stop
26h 44mORD-LAS
$84
5/17ven.
1 stopSun Country Air
16h 56mORD-LAS
$85
5/26dim.
nonstopAllegiant Air
3h 46mRFD-LAS
$94
5/27lun.
2 stops
24h 42mORD-LAS
$101

Search by stops

Search by airline

Search by price

Last minute flights from Illinois to Las Vegas

Last minute flight, train and bus deals

4/29lun.
nonstopFrontier
3h 43mSTL-LAS
5/8mer.
nonstopFrontier
3h 08mLAS-STL
$103
4/30mar.
nonstopFrontier
3h 52mSTL-LAS
5/3ven.
nonstopFrontier
3h 08mLAS-STL
$123
4/29lun.
nonstop
3h 43mSTL-LAS
5/3ven.
nonstop
3h 13mLAS-STL
$125
4/30mar.
nonstop
3h 43mSTL-LAS
5/3ven.
nonstop
3h 13mLAS-STL
$130
4/30mar.
nonstopSpirit Airlines
4h 05mORD-LAS
5/7mar.
multi-stopSpirit Airlines
9h 13mLAS-ORD
$155
4/30mar.
nonstopSpirit Airlines
4h 05mORD-LAS
5/11sam.
multi-stopSpirit Airlines
18h 13mLAS-ORD
$160
4/29lun.
nonstopAllegiant Air
3h 56mPIA-LAS
5/3ven.
nonstopAllegiant Air
3h 14mLAS-PIA
$263
5/2jeu.
nonstopAllegiant Air
3h 46mRFD-LAS
5/9jeu.
nonstopAllegiant Air
3h 25mLAS-RFD
$292
5/1mer.
multi-stopAmerican Airlines
8h 20mPIA-LAS
5/4sam.
multi-stopAmerican Airlines
5h 43mLAS-PIA
$310
5/1mer.
multi-stopAmerican Airlines
8h 38mPIA-LAS
5/4sam.
multi-stopAmerican Airlines
5h 17mLAS-PIA
$317

Search by stops

Search by airline

Search by price