Find cheap flights to Illinois

Find cheap flights to Illinois

Round-trip
Economy
Washington (WAS)
Illinois
Sun 8/2
Sun 8/9
Any month
Show only nonstop flights
Compare vs. KAYAK |
Search hundreds of travel sites at once for deals on flights to Illinois

Latest Illinois Flight Deals

Chicago
Nonstop from $116
Nonstop from $133
Moline
1 stop from $150
Nonstop from $292
Peoria
1 stop from $196
1 stop from $216

Good to know

Low season

January Best time to beat the crowds with an average 5% drop in price.

High season

February Most popular time to fly with an average 11% increase in price.

Average price of a round-trip

$325 (avg. price over the last 2 weeks)

Good deal for a round-trip

$89 or less

Top tips for finding cheap flights to Illinois

  • Looking for cheap airfare to Illinois? 25% of our users found round-trip tickets to Illinois for the following prices or less: From Boston Logan Intl $198, from Atlanta Hartsfield-Jackson $215, from Chicago $435
  • Book at least 3 weeks before departure in order to get a below-average price.
  • High season is considered to be June and July. The cheapest month to fly to Illinois is February.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Illinois flight deals.
  • When you’re looking for flights to Illinois and you’re not sure which destination to pick, Chicago is perhaps the first city that comes to mind. The city is served by three airports, which makes it the best-known gateway into the Prairie State. If you like to choose airports based on airlines, keep in mind that the Chicago O’Hare International Airport (ORD) is the hub airport for American Airlines and United Airlines.
  • Midway International Airport (MDW) is the second largest airport in Chicago, and it’s mainly used by Southwest Airlines as a layover airport for dozens of destinations in the United States.
  • If you’re traveling to more than one destination in Illinois, Central Illinois Regional Airport (BMI) is a good option for those staying close to major cities like Rockford (2h 10m), Chicago (2h 45m), and Springfield (1h 10m) but prefer a smaller airport. Frontier Airlines, Allegiant Air, American Eagle, and Delta Connection are the airlines operating regular flights to Illinois from Orlando, Dallas, Atlanta, and Denver.
  • For passengers traveling with children and looking to rent a car at an airport in Illinois, keep in mind that local state laws require children under 2 years old to sit in a rear-facing child seat. From ages 4 to 8, children can sit in a forward-facing seat. Children between 8 and 12 years old can use a booster seat.
  • For passengers traveling with pets, you'll find pet relief areas at both of Chicago's international airports and also at Central Illinois Regional Airport.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs - booking Illinois flights

How long is the flight to Illinois?

What is the cheapest flight to Illinois?

Which airlines fly to Illinois?

What are the most popular destinations in Illinois?

What’s the best airport to fly into Chicago?

Where do I fly into if I’m visiting Springfield?

I’m going to Six Flags Great America. Which airport do I fly into?

Which airport is best if I’m going to Carbondale, Illinois?

How does KAYAK’s flight Price Forecast tool help me choose the right time to buy?

Top 5 airlines flying to Illinois

Scores according to KAYAK customer reviews

8.2
JetBlue
Overall score based on 19,204 reviews
8.3
Boarding
8.3
Comfort
8.6
Crew
7.9
Entertainment
7.8
Food
Airline reviews
Read more about JetBlue

Book cheap flights to Illinois (Round-trip)

Airports
Origin
Seattle
$121
only
$121
Atlanta
$32
only
$32
Newark
$42
only
$42
Denver
$31
only
$31
Dallas
$32
only
$32
Washington
$134
only
$134
Destination
Chicago
$31
only
$31
Wed, Aug 12
DEN
Denver Airport
ORD
Chicago O'Hare Airport
2h 26m
Wed, Aug 19
ORD
Chicago O'Hare Airport
DEN
Denver Airport
2h 39m
Trip: 8 days
Based on null reviews
Thu, Aug 6
ATL
Hartsfield-Jackson Atlanta Airport
ORD
Chicago O'Hare Airport
2h 03m
Wed, Aug 12
ORD
Chicago O'Hare Airport
ATL
Hartsfield-Jackson Atlanta Airport
2h 03m
Trip: 7 days
Based on null reviews
Wed, Oct 28
DEN
Denver Airport
ORD
Chicago O'Hare Airport
2h 18m
Wed, Nov 4
ORD
Chicago O'Hare Airport
DEN
Denver Airport
2h 37m
Trip: 8 days
Based on null reviews
Wed, Aug 12
DEN
Denver Airport
ORD
Chicago O'Hare Airport
2h 26m
Mon, Aug 17
ORD
Chicago O'Hare Airport
DEN
Denver Airport
2h 39m
Trip: 6 days
Based on null reviews
Thu, Jul 30
DFW
Dallas/Fort Worth Airport
ORD
Chicago O'Hare Airport
2h 24m
Mon, Aug 3
ORD
Chicago O'Hare Airport
DFW
Dallas/Fort Worth Airport
2h 36m
Trip: 5 days
Based on null reviews
Wed, Aug 26
DEN
Denver Airport
ORD
Chicago O'Hare Airport
2h 36m
Tue, Sep 1
ORD
Chicago O'Hare Airport
DEN
Denver Airport
2h 45m
Trip: 7 days
Based on null reviews
Sun, Aug 9
ATL
Hartsfield-Jackson Atlanta Airport
ORD
Chicago O'Hare Airport
2h 03m
Wed, Aug 12
ORD
Chicago O'Hare Airport
ATL
Hartsfield-Jackson Atlanta Airport
2h 03m
Trip: 4 days
Based on null reviews
Fri, Aug 7
EWR
Newark Liberty Airport
ORD
Chicago O'Hare Airport
2h 31m
Sun, Aug 9
ORD
Chicago O'Hare Airport
EWR
Newark Liberty Airport
2h 11m
Trip: 3 days
Based on null reviews
Sun, Jul 26
DFW
Dallas/Fort Worth Airport
ORD
Chicago O'Hare Airport
2h 24m
Thu, Jul 30
ORD
Chicago O'Hare Airport
DFW
Dallas/Fort Worth Airport
2h 36m
Trip: 5 days
Based on null reviews
Fri, Jul 31
DEN
Denver Airport
ORD
Chicago O'Hare Airport
2h 36m
Mon, Aug 3
ORD
Chicago O'Hare Airport
DEN
Denver Airport
2h 39m
Trip: 4 days
Based on null reviews
Wed, Aug 12
DEN
Denver Airport
ORD
Chicago O'Hare Airport
2h 33m
Mon, Aug 17
ORD
Chicago O'Hare Airport
DEN
Denver Airport
12h 20m
Trip: 6 days
Based on null reviews
Fri, Aug 14
ATL
Hartsfield-Jackson Atlanta Airport
ORD
Chicago O'Hare Airport
2h 03m
Mon, Aug 17
ORD
Chicago O'Hare Airport
ATL
Hartsfield-Jackson Atlanta Airport
2h 03m
Trip: 4 days
Based on null reviews
Tue, Aug 25
DEN
Denver Airport
ORD
Chicago O'Hare Airport
2h 27m
Sat, Sep 5
ORD
Chicago O'Hare Airport
DEN
Denver Airport
2h 43m
Trip: 12 days
Based on null reviews
Fri, Jul 31
DFW
Dallas/Fort Worth Airport
ORD
Chicago O'Hare Airport
2h 24m
Mon, Aug 3
ORD
Chicago O'Hare Airport
DFW
Dallas/Fort Worth Airport
2h 36m
Trip: 4 days
Based on null reviews
Thu, Aug 6
SEA
Seattle/Tacoma Airport
ORD
Chicago O'Hare Airport
7h 05m
Sat, Aug 22
ORD
Chicago O'Hare Airport
SEA
Seattle/Tacoma Airport
4h 28m
Trip: 17 days
Based on null reviews
Sat, Aug 1
EWR
Newark Liberty Airport
ORD
Chicago O'Hare Airport
2h 40m
Sat, Aug 8
ORD
Chicago O'Hare Airport
EWR
Newark Liberty Airport
6h 53m
Trip: 8 days
Based on null reviews
Fri, Jul 31
DEN
Denver Airport
ORD
Chicago O'Hare Airport
2h 36m
Sun, Aug 2
ORD
Chicago O'Hare Airport
DEN
Denver Airport
2h 39m
Trip: 3 days
Based on null reviews
Thu, Aug 6
DCA
Reagan Washington National Airport
ORD
Chicago O'Hare Airport
5h 59m
Sat, Aug 8
ORD
Chicago O'Hare Airport
DCA
Reagan Washington National Airport
5h 29m
Trip: 3 days
Based on null reviews
Wed, Aug 12
ATL
Hartsfield-Jackson Atlanta Airport
ORD
Chicago O'Hare Airport
2h 03m
Sun, Aug 16
ORD
Chicago O'Hare Airport
ATL
Hartsfield-Jackson Atlanta Airport
2h 03m
Trip: 5 days
Based on null reviews
Sat, Oct 10
DEN
Denver Airport
ORD
Chicago O'Hare Airport
2h 32m
Thu, Oct 15
ORD
Chicago O'Hare Airport
DEN
Denver Airport
2h 34m
Trip: 6 days
Based on null reviews

Book cheap flights to Illinois (One-way)

Airports
Origin
Seattle
$59
only
$59
Atlanta
$16
only
$16
Los Angeles
$32
only
$32
Newark
$30
only
$30
Denver
$16
only
$16
Dallas
$16
only
$16
Destination
Chicago
$16
only
$16
Sat, Aug 15
ATL
Hartsfield-Jackson Atlanta Airport
ORD
Chicago O'Hare Airport
2h 03m
Based on null reviews
Tue, Aug 4
DEN
Denver Airport
ORD
Chicago O'Hare Airport
2h 27m
Based on null reviews
Sat, Jul 25
DFW
Dallas/Fort Worth Airport
ORD
Chicago O'Hare Airport
2h 24m
Based on null reviews
Thu, Aug 13
EWR
Newark Liberty Airport
ORD
Chicago O'Hare Airport
11h 04m
Based on null reviews
Sun, Aug 2
EWR
Newark Liberty Airport
ORD
Chicago O'Hare Airport
2h 27m
Based on null reviews
Wed, Jul 29
DEN
Denver Airport
ORD
Chicago O'Hare Airport
2h 36m
Based on null reviews
Sat, Aug 1
EWR
Newark Liberty Airport
ORD
Chicago O'Hare Airport
2h 35m
Based on null reviews
Sun, Aug 16
EWR
Newark Liberty Airport
ORD
Chicago O'Hare Airport
8h 00m
Based on null reviews
Sun, Jul 26
ATL
Hartsfield-Jackson Atlanta Airport
ORD
Chicago O'Hare Airport
2h 03m
Based on null reviews
Thu, Oct 8
DEN
Denver Airport
ORD
Chicago O'Hare Airport
7h 24m
Based on null reviews
Sun, Jul 26
DFW
Dallas/Fort Worth Airport
ORD
Chicago O'Hare Airport
2h 24m
Based on null reviews
Fri, Jul 31
DEN
Denver Airport
ORD
Chicago O'Hare Airport
2h 36m
Based on null reviews
Tue, Aug 11
LAX
Los Angeles Airport
ORD
Chicago O'Hare Airport
4h 08m
Based on null reviews
Wed, Sep 16
ATL
Hartsfield-Jackson Atlanta Airport
ORD
Chicago O'Hare Airport
2h 10m
Based on null reviews
Sat, Aug 22
SEA
Seattle/Tacoma Airport
ORD
Chicago O'Hare Airport
3h 42m
Based on null reviews
Tue, Aug 25
EWR
Newark Liberty Airport
ORD
Chicago O'Hare Airport
2h 36m
Based on null reviews
Sat, Jul 25
DFW
Dallas/Fort Worth Airport
ORD
Chicago O'Hare Airport
2h 24m
Based on null reviews
Tue, Aug 11
LAX
Los Angeles Airport
ORD
Chicago O'Hare Airport
14h 40m
Based on null reviews
Sun, Jul 26
EWR
Newark Liberty Airport
ORD
Chicago O'Hare Airport
2h 27m
Based on null reviews
Wed, Jul 29
DEN
Denver Airport
ORD
Chicago O'Hare Airport
2h 36m
Based on null reviews
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

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