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$30 Find cheap flights from Illinois to Las Vegas

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 8/25. 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
Fri 6/28
Fri 7/5

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In the last 7 days travelers have searched 43,361,115 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

May

Cheapest flight

$30
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 10% 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, +68 more

ANA, Advanced Air, +69 more

Friday

ANA, Advanced Air, Aer Lingus, +68 more

ANA, Advanced Air, +69 more

Saturday

ANA, Advanced Air, Aer Lingus, +66 more

ANA, Advanced Air, +67 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, +68 more

ANA, Advanced Air, +69 more

Friday

ANA, Advanced Air, Aer Lingus, +68 more

ANA, Advanced Air, +69 more

Saturday

ANA, Advanced Air, Aer Lingus, +66 more

ANA, Advanced Air, +67 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

6/10Mon
nonstop
3h 26mSTL-LAS
6/12Wed
nonstop
3h 12mLAS-STL
$67
9/23Mon
nonstopFrontier
3h 37mSTL-LAS
9/25Wed
nonstopFrontier
3h 17mLAS-STL
$68
8/24Sat
nonstopFrontier
3h 37mSTL-LAS
8/29Thu
nonstopFrontier
3h 17mLAS-STL
$69
6/19Wed
nonstop
3h 27mSTL-LAS
6/27Thu
nonstop
3h 12mLAS-STL
$75
6/26Wed
nonstopSpirit Airlines
3h 27mSTL-LAS
7/5Fri
nonstopSpirit Airlines
3h 16mLAS-STL
$79
10/2Wed
nonstopSpirit Airlines
3h 32mSTL-LAS
10/5Sat
nonstopSpirit Airlines
3h 16mLAS-STL
$92
8/11Sun
nonstopAllegiant Air
3h 24mMLI-LAS
8/15Thu
nonstopAllegiant Air
3h 19mLAS-MLI
$114
8/1Thu
nonstopAllegiant Air
3h 24mMLI-LAS
8/15Thu
nonstopAllegiant Air
3h 19mLAS-MLI
$131
8/28Wed
1 stopAmerican Airlines
7h 35mPIA-LAS
9/7Sat
2 stopsAmerican Airlines
9h 26mLAS-PIA
$202
8/28Wed
2 stopsAmerican Airlines
9h 08mPIA-LAS
9/7Sat
2 stopsAmerican Airlines
9h 26mLAS-PIA
$208

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Recent one-way flight deals

8/25Sun
nonstopFrontier
3h 37mSTL-LAS
$30
6/24Mon
nonstopFrontier
3h 46mSTL-LAS
$31
6/11Tue
1 stopSpirit Airlines
10h 47mSTL-LAS
$33
6/10Mon
nonstopSpirit Airlines
3h 26mSTL-LAS
$58
7/18Thu
nonstopAllegiant Air
3h 24mMLI-LAS
$64
6/23Sun
nonstopAllegiant Air
3h 38mRFD-LAS
$71
9/8Sun
1 stop
14h 10mRFD-LAS
$75
7/5Fri
1 stopSun Country Air
15h 12mORD-LAS
$76
6/15Sat
1 stop
16h 10mRFD-LAS
$80
8/9Fri
1 stopSun Country Air
15h 29mORD-LAS
$106

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Last minute flights from Illinois to Las Vegas

Last minute flight, train and bus deals

6/3Mon
nonstopFrontier
3h 48mSTL-LAS
6/5Wed
nonstopFrontier
3h 12mLAS-STL
$114
6/3Mon
nonstopFrontier
4h 10mORD-LAS
6/11Tue
nonstopFrontier
3h 44mLAS-ORD
$131
6/1Sat
nonstop
4h 10mORD-LAS
6/5Wed
nonstop
3h 47mLAS-ORD
$144
6/1Sat
nonstop
4h 10mORD-LAS
6/5Wed
nonstop
3h 47mLAS-ORD
$151
6/1Sat
nonstopSpirit Airlines
4h 02mORD-LAS
6/7Fri
nonstopSpirit Airlines
3h 47mLAS-ORD
$152
5/31Fri
nonstopSpirit Airlines
3h 33mSTL-LAS
6/7Fri
nonstopSpirit Airlines
3h 16mLAS-STL
$165
6/2Sun
nonstopAllegiant Air
3h 46mRFD-LAS
6/6Thu
nonstopAllegiant Air
3h 22mLAS-RFD
$286
5/31Fri
nonstopAllegiant Air
3h 38mPIA-LAS
6/3Mon
nonstopAllegiant Air
3h 15mLAS-PIA
$294
6/1Sat
multi-stopAmerican Airlines
8h 31mMLI-LAS
6/3Mon
multi-stopAmerican Airlines
8h 11mLAS-MLI
$358
6/1Sat
multi-stopAmerican Airlines
8h 08mMLI-LAS
6/3Mon
multi-stopAmerican Airlines
5h 31mLAS-MLI
$364

Search by stops

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