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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 6/19. 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
Sun 6/16
Sun 6/23

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In the last 7 days travelers have searched 42,332,103 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 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, +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

5/26Sun
nonstopFrontier
3h 48mSTL-LAS
5/29Wed
nonstopFrontier
3h 12mLAS-STL
$81
5/22Wed
nonstopFrontier
3h 48mSTL-LAS
5/29Wed
nonstopFrontier
3h 12mLAS-STL
$84
6/4Tue
1 stop
15h 18mSTL-LAS
6/7Fri
nonstop
3h 12mLAS-STL
$85
6/1Sat
1 stopSpirit Airlines
13h 03mSTL-LAS
6/5Wed
nonstopSpirit Airlines
3h 16mLAS-STL
$91
5/29Wed
nonstop
3h 48mSTL-LAS
5/31Fri
nonstop
3h 18mLAS-STL
$100
6/21Fri
nonstopSpirit Airlines
3h 27mSTL-LAS
6/26Wed
nonstopSpirit Airlines
3h 16mLAS-STL
$115
8/11Sun
nonstopAllegiant Air
3h 34mRFD-LAS
8/15Thu
nonstopAllegiant Air
3h 29mLAS-RFD
$130
7/28Sun
nonstopAllegiant Air
3h 34mRFD-LAS
8/1Thu
nonstopAllegiant Air
3h 26mLAS-RFD
$155
6/16Sun
1 stopSun Country Air
27h 42mORD-LAS
6/19Wed
1 stopSun Country Air
23h 15mLAS-ORD
$192
6/13Thu
1 stopSun Country Air
6h 19mORD-LAS
6/27Thu
1 stopSun Country Air
6h 58mLAS-ORD
$201

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Recent one-way flight deals

6/19Wed
nonstopSpirit Airlines
3h 27mSTL-LAS
$38
6/26Wed
nonstopSpirit Airlines
3h 27mSTL-LAS
$39
6/11Tue
nonstopFrontier
4h 03mMDW-LAS
$44
5/29Wed
nonstopFrontier
4h 10mMDW-LAS
$49
5/26Sun
1 stopSun Country Air
16h 21mORD-LAS
$60
7/4Thu
nonstopAllegiant Air
3h 34mRFD-LAS
$63
8/11Sun
nonstopAllegiant Air
3h 34mRFD-LAS
$64
7/7Sun
1 stopSun Country Air
13h 49mORD-LAS
$76
6/26Wed
1 stop
8h 10mRFD-LAS
$76
6/15Sat
1 stop
16h 10mRFD-LAS
$78

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Search by price

Last minute flights from Illinois to Las Vegas

Last minute flight, train and bus deals

5/22Wed
nonstopSpirit Airlines
3h 32mSTL-LAS
5/29Wed
nonstopSpirit Airlines
3h 16mLAS-STL
$68
5/22Wed
nonstopFrontier
3h 48mSTL-LAS
5/29Wed
nonstopFrontier
3h 12mLAS-STL
$84
5/18Sat
multi-stop
13h 03mSTL-LAS
5/22Wed
nonstop
3h 12mLAS-STL
$131
5/21Tue
nonstop
4h 02mORD-LAS
5/24Fri
nonstop
3h 46mLAS-ORD
$158
5/19Sun
nonstopAllegiant Air
3h 46mRFD-LAS
5/23Thu
nonstopAllegiant Air
3h 24mLAS-RFD
$205
5/19Sun
nonstopAllegiant Air
3h 36mMLI-LAS
5/26Sun
nonstopAllegiant Air
3h 14mLAS-MLI
$276
5/21Tue
multi-stopAmerican Airlines
8h 31mMLI-LAS
5/28Tue
multi-stopAmerican Airlines
6h 29mLAS-MLI
$333
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
5/21Tue
multi-stopDelta
9h 01mMDW-LAS
6/3Mon
multi-stopDelta
6h 02mLAS-MDW
$430

Search by stops

Search by airline

Search by price