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$38 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 6/4. 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
Sat 6/15
Sat 6/22

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In the last 7 days travelers have searched 42,211,976 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

May

Cheapest flight

$38
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Chicago O'Hare Airport 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, +68 more

ANA, Advanced Air, +69 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, +67 more

ANA, Advanced Air, +68 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, +68 more

ANA, Advanced Air, +69 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, +67 more

ANA, Advanced Air, +68 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

5/22Wed
nonstopFrontier
3h 48mSTL-LAS
5/24Fri
nonstopFrontier
3h 12mLAS-STL
$83
7/10Wed
nonstopSpirit Airlines
3h 27mSTL-LAS
7/17Wed
nonstopSpirit Airlines
3h 16mLAS-STL
$84
6/4Tue
1 stop
15h 18mSTL-LAS
6/7Fri
nonstop
3h 12mLAS-STL
$85
5/25Sat
1 stop
13h 03mSTL-LAS
5/28Tue
nonstop
3h 12mLAS-STL
$102
5/26Sun
1 stopSun Country Air
16h 21mORD-LAS
5/30Thu
1 stopSun Country Air
9h 39mLAS-ORD
$150
5/26Sun
nonstopAllegiant Air
3h 46mRFD-LAS
5/30Thu
nonstopAllegiant Air
3h 24mLAS-RFD
$155
7/14Sun
nonstopAllegiant Air
3h 24mMLI-LAS
7/18Thu
nonstopAllegiant Air
3h 15mLAS-MLI
$157
6/16Sun
1 stopSun Country Air
27h 42mORD-LAS
6/20Thu
1 stopSun Country Air
9h 39mLAS-ORD
$185
7/1Mon
1 stopAmerican Airlines
8h 21mMLI-LAS
7/5Fri
1 stopAmerican Airlines
8h 30mLAS-MLI
$208
8/31Sat
1 stopAmerican Airlines
7h 33mPIA-LAS
9/4Wed
1 stopAmerican Airlines
7h 17mLAS-PIA
$239

Search by stops

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Recent one-way flight deals

6/4Tue
nonstopSpirit Airlines
4h 02mORD-LAS
$38
5/21Tue
nonstopFrontier
4h 10mMDW-LAS
$39
8/11Sun
nonstopAllegiant Air
3h 34mRFD-LAS
$56
7/4Thu
nonstopAllegiant Air
3h 34mRFD-LAS
$63
5/31Fri
1 stopSun Country Air
16h 26mORD-LAS
$68
5/31Fri
1 stopSun Country Air
16h 26mORD-LAS
$75
6/29Sat
1 stop
16h 10mRFD-LAS
$93
8/21Wed
1 stopAmerican Airlines
7h 50mCMI-LAS
$96
8/21Wed
2 stopsAmerican Airlines
8h 38mCMI-LAS
$101
6/2Sun
1 stop
12h 18mSTL-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

5/21Tue
nonstopFrontier
4h 10mORD-LAS
6/4Tue
nonstopFrontier
3h 46mLAS-ORD
$81
5/21Tue
nonstopSpirit Airlines
4h 02mORD-LAS
5/24Fri
nonstopSpirit Airlines
3h 41mLAS-ORD
$94
5/21Tue
nonstop
4h 10mORD-LAS
5/24Fri
nonstop
3h 41mLAS-ORD
$106
5/18Sat
nonstop
4h 02mORD-LAS
5/29Wed
nonstop
3h 46mLAS-ORD
$108
5/19Sun
nonstopAllegiant Air
3h 46mRFD-LAS
5/23Thu
nonstopAllegiant Air
3h 24mLAS-RFD
$182
5/17Fri
nonstopAllegiant Air
3h 38mPIA-LAS
5/20Mon
nonstopAllegiant Air
3h 15mLAS-PIA
$281
5/21Tue
multi-stopAmerican Airlines
8h 31mMLI-LAS
5/25Sat
multi-stopAmerican Airlines
5h 31mLAS-MLI
$333
5/18Sat
multi-stopDelta
6h 48mMDW-LAS
5/28Tue
multi-stopDelta
6h 02mLAS-MDW
$335
5/21Tue
multi-stopAmerican Airlines
8h 38mMLI-LAS
5/28Tue
multi-stopAmerican Airlines
6h 29mLAS-MLI
$339
5/21Tue
multi-stopDelta
9h 01mMDW-LAS
5/28Tue
multi-stopDelta
6h 02mLAS-MDW
$354

Search by stops

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