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$23 Find cheap flights from Illinois to the United States

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Illinois to the United States departing on 9/12. 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 7/13
Sat 7/20

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In the last 7 days travelers have searched 44,216,777 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

July

Cheapest flight

$23
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Chicago O'Hare Airport to Las Vegas

FAQs for booking flights from Illinois to the United States

  • How does KAYAK find such low prices on flights from Illinois to the United States?

    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 the United States.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to the United States 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 the United States?

    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 the United States 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 the United States?

    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 the United States from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Illinois to the United States

Recent round-trip flight deals

8/20Tue
nonstopFrontier
2h 37mORD-DFW
8/21Wed
nonstopFrontier
2h 39mDFW-ORD
$48
9/10Tue
nonstopSpirit Airlines
3h 07mORD-FLL
9/11Wed
nonstopSpirit Airlines
3h 17mFLL-ORD
$50
7/17Wed
nonstop
2h 32mORD-DFW
7/30Tue
nonstop
2h 34mDFW-ORD
$60
7/16Tue
nonstop
2h 35mORD-DFW
7/23Tue
1 stop
12h 34mDFW-ORD
$75
9/9Mon
nonstopAlaska Airlines
4h 33mORD-SEA
9/9Mon
nonstopAlaska Airlines
3h 53mSEA-ORD
$91
9/18Wed
nonstopAlaska Airlines
4h 34mORD-SEA
9/24Tue
nonstopAlaska Airlines
3h 53mSEA-ORD
$97
12/10Tue
nonstopUnited Airlines
2h 10mORD-LGA
12/17Tue
nonstopUnited Airlines
2h 25mLGA-ORD
$97
8/28Wed
nonstopJetBlue
2h 25mORD-JFK
9/3Tue
nonstopJetBlue
2h 45mJFK-ORD
$97
8/20Tue
nonstopJetBlue
2h 19mORD-JFK
8/25Sun
nonstopJetBlue
2h 45mJFK-ORD
$99
8/24Sat
nonstopUnited Airlines
4h 33mORD-SEA
9/4Wed
1 stopUnited Airlines
9h 45mSEA-ORD
$119

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Recent one-way flight deals

9/12Thu
nonstopFrontier
4h 18mORD-LAS
$23
9/10Tue
nonstopSpirit Airlines
3h 10mORD-FLL
$24
9/1Sun
nonstopDelta
4h 25mORD-SEA
$49
8/6Tue
nonstopJetBlue
2h 25mORD-JFK
$49
9/9Mon
nonstopDelta
2h 20mORD-LGA
$51
10/23Wed
nonstopJetBlue
2h 25mORD-JFK
$51
10/18Fri
nonstopAmerican Airlines
2h 33mORD-JFK
$52
8/22Thu
nonstopAmerican Airlines
2h 39mORD-MCO
$63
8/12Mon
nonstopUnited Airlines
3h 12mORD-FLL
$63
7/9Tue
nonstopUnited Airlines
2h 21mORD-EWR
$69

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Last minute flights from Illinois to the United States

Last minute flight, train and bus deals

6/18Tue
nonstopFrontier
2h 29mORD-DFW
6/25Tue
nonstopFrontier
2h 23mDFW-ORD
$120
6/18Tue
nonstopFrontier
4h 09mORD-LAS
7/9Tue
nonstopFrontier
3h 47mLAS-ORD
$134
6/18Tue
multi-stopSpirit Airlines
11h 33mORD-MCO
6/25Tue
nonstopSpirit Airlines
3h 14mMCO-ORD
$147
6/18Tue
multi-stopSpirit Airlines
14h 03mORD-EWR
7/2Tue
multi-stopSpirit Airlines
10h 05mEWR-ORD
$148
6/18Tue
nonstop
2h 52mORD-MCO
6/28Fri
nonstop
3h 14mMCO-ORD
$148
6/18Tue
nonstop
3h 54mORD-LAS
6/27Thu
nonstop
3h 44mLAS-ORD
$152
6/18Tue
nonstopAmerican Airlines
2h 11mORD-EWR
7/2Tue
nonstopAmerican Airlines
2h 37mEWR-ORD
$188
6/18Tue
nonstopDelta
2h 15mORD-LGA
6/21Fri
nonstopDelta
2h 35mLGA-ORD
$207
6/18Tue
nonstopAmerican Airlines
2h 26mORD-JFK
6/25Tue
multi-stopAmerican Airlines
4h 20mJFK-ORD
$232
6/18Tue
nonstopDelta
2h 21mORD-JFK
6/19Wed
nonstopDelta
2h 58mJFK-ORD
$247

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Flights to the United States

Return flight deals:

United States - Illinois

Cabin classes:

$172
$194
$310
$37

Browse destinations:

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