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Find cheap flights from Illinois to Las Vegas from $36

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
qua 5/29
qua 6/5

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In the last 7 days travelers have searched 43,219,010 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

March

Cheapest flight

$36
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

5/14ter
1 stopSpirit Airlines
6h 39mORD-LAS
5/18sáb
1 stopSpirit Airlines
14h 48mLAS-ORD
$74
5/8qua
nonstopSpirit Airlines
3h 32mSTL-LAS
5/13seg
nonstopSpirit Airlines
3h 18mLAS-STL
$82
5/11sáb
1 stop
13h 03mSTL-LAS
5/14ter
nonstop
3h 08mLAS-STL
$83
5/27seg
nonstopFrontier
3h 48mSTL-LAS
5/30qui
nonstopFrontier
3h 22mLAS-STL
$84
5/11sáb
1 stop
13h 03mSTL-LAS
5/13seg
1 stop
7h 07mLAS-STL
$86
5/15qua
1 stopFrontier
6h 24mSTL-LAS
5/20seg
nonstopFrontier
3h 12mLAS-STL
$87
8/11dom
nonstopAllegiant Air
3h 34mRFD-LAS
8/15qui
nonstopAllegiant Air
3h 29mLAS-RFD
$157
5/13seg
nonstopAllegiant Air
3h 40mPIA-LAS
5/17sex
nonstopAllegiant Air
3h 15mLAS-PIA
$176
6/7sex
1 stopSun Country Air
15h 49mORD-LAS
6/12qua
1 stopSun Country Air
6h 59mLAS-ORD
$206
6/23dom
1 stopSun Country Air
17h 54mORD-LAS
6/27qui
1 stopSun Country Air
17h 27mLAS-ORD
$235

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Recent one-way flight deals

5/11sáb
1 stopSpirit Airlines
13h 03mSTL-LAS
$36
5/21ter
nonstopFrontier
4h 10mMDW-LAS
$39
5/12dom
1 stopSun Country Air
16h 51mORD-LAS
$79
5/26dom
1 stopSun Country Air
16h 21mORD-LAS
$81
5/12dom
nonstopAllegiant Air
3h 46mRFD-LAS
$88
5/26dom
nonstopAllegiant Air
3h 46mRFD-LAS
$91
9/28sáb
1 stopAmerican Airlines
5h 34mMLI-LAS
$99
6/24seg
1 stop
21h 26mORD-LAS
$104
5/10sex
2 stops
29h 03mORD-LAS
$107
5/29qua
nonstopAmerican Airlines
4h 08mORD-LAS
$110

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Last minute flights from Illinois to Las Vegas

Last minute flight, train and bus deals

5/1qua
nonstopSpirit Airlines
3h 35mSTL-LAS
5/8qua
nonstopSpirit Airlines
3h 16mLAS-STL
$90
5/1qua
nonstopSpirit Airlines
3h 35mSTL-LAS
5/10sex
nonstopSpirit Airlines
3h 18mLAS-STL
$112
5/1qua
nonstop
3h 35mSTL-LAS
5/7ter
nonstop
3h 17mLAS-STL
$113
5/4sáb
nonstopFrontier
4h 04mMDW-LAS
5/8qua
nonstopFrontier
3h 36mLAS-MDW
$140
5/1qua
nonstop
3h 35mSTL-LAS
5/7ter
multi-stop
5h 10mLAS-STL
$141
5/1qua
nonstopFrontier
3h 43mSTL-LAS
5/8qua
multi-stopFrontier
10h 30mLAS-STL
$145
5/3sex
nonstopAllegiant Air
3h 40mPIA-LAS
5/10sex
nonstopAllegiant Air
3h 14mLAS-PIA
$228
5/4sáb
multi-stopDelta
7h 43mMDW-LAS
5/7ter
multi-stopDelta
6h 45mLAS-MDW
$264
5/2qui
nonstopAllegiant Air
3h 46mRFD-LAS
5/9qui
nonstopAllegiant Air
3h 25mLAS-RFD
$292
4/30ter
multi-stopDelta
8h 24mMDW-LAS
5/3sex
multi-stopDelta
7h 20mLAS-MDW
$424

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Search by airline

Search by price