Cheap flights to Illinois from $32

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/8. 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.
WAS — ORD
Mar 23 — Mar 301

Flights to Illinois in 2024

Find the latest flights to Illinois in 2024, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 3,145,932 searches and data was last updated on March 19, 2024.

Popular in

June

Cheapest in

February

Average price

$239

Round-trip from

$46

One-way from

$41
High demand for flights, 16% potential price rise
Best time to find cheap flights, 3% potential price drop
Average for round-trip flights in March 2024
From New York to Chicago
One-way flight from New York to Illinois

Find flights to Illinois

Browse one-way and round-trip flights deals to Illinois on Cheapflights. Flight deals are based on user searches and were last updated on March 19, 2024
Explore Illinois

Cheap flights to Illinois in March & April 2024

Search the best deals to popular Illinois cities recently found by Cheapflights users
The lowest-priced flights departing to Illinois in March and April 2024 can be found below. Be sure to check back soon as deals update often.
Cheap flights to Chicago, IL
Tue 4/98:03 pmLGA - ORD
Nonstop2h 48mSpirit Airlines
Wed 4/107:07 amORD - LGA
1 stop6h 27mSpirit Airlines
Deal found 3/17$77
Wed 4/38:03 pmLGA - ORD
Nonstop2h 48mSpirit Airlines
Tue 4/95:20 pmORD - LGA
Nonstop2h 09mSpirit Airlines
Deal found 3/18$78
Sat 4/138:37 amLGA - ORD
Nonstop2h 37mSpirit Airlines
Sat 4/2011:11 amORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 3/16$80
Tue 4/308:37 amLGA - ORD
Nonstop2h 37mSpirit Airlines
Wed 5/87:20 amORD - LGA
1 stop6h 10mSpirit Airlines
Deal found 3/18$81
Tue 4/168:03 pmLGA - ORD
Nonstop2h 40mSpirit Airlines
Tue 4/239:25 pmORD - LGA
1 stop10h 36mSpirit Airlines
Deal found 3/17$82
Tue 4/169:55 amLGA - ORD
1 stop11h 14mSpirit Airlines
Tue 4/236:41 pmORD - LGA
1 stop13h 20mSpirit Airlines
Deal found 3/17$84
Wed 4/178:03 pmLGA - ORD
Nonstop2h 40mSpirit Airlines
Thu 4/185:09 pmORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 3/18$85
Thu 4/48:30 amLGA - ORD
Nonstop2h 46mSpirit Airlines
Mon 4/811:14 amORD - LGA
Nonstop2h 06mSpirit Airlines
Deal found 3/17$87
Sat 4/68:30 amLGA - ORD
Nonstop2h 46mSpirit Airlines
Tue 4/3011:11 amORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 3/17$88
Cheap flights to Moline, IL
Thu 4/115:40 pmDEN - MLI
Nonstop2h 07mUnited Airlines
Thu 4/185:45 pmMLI - DEN
1 stop6h 34mUnited Airlines
Deal found 3/18$198
Sat 4/136:44 amDEN - MLI
1 stop8h 15mAmerican Airlines
Sun 4/145:55 amMLI - DEN
1 stop5h 09mAmerican Airlines
Deal found 3/17$206
Wed 4/1710:20 amDCA - MLI
1 stop6h 39mAmerican Airlines
Tue 4/234:29 pmMLI - DCA
1 stop4h 46mAmerican Airlines
Deal found 3/17$213
Wed 4/174:41 pmBWI - MLI
1 stop6h 36mDelta
Tue 4/235:03 pmMLI - BWI
1 stop6h 32mDelta
Deal found 3/17$216
Tue 4/96:15 pmDCA - MLI
1 stop5h 02mDelta
Sat 4/135:08 pmMLI - DCA
1 stop4h 35mDelta
Deal found 3/17$222
Wed 4/246:00 amDCA - MLI
1 stop6h 08mAmerican Airlines
Tue 4/304:29 pmMLI - DCA
1 stop4h 46mAmerican Airlines
Deal found 3/18$226
Sat 4/208:30 amAUS - MLI
1 stop7h 47mDelta
Wed 4/245:03 pmMLI - AUS
1 stop5h 56mDelta
Deal found 3/17$228
Mon 3/256:30 amDEN - MLI
1 stop8h 28mAmerican Airlines
Tue 3/264:28 pmMLI - DEN
1 stop8h 33mAmerican Airlines
Deal found 3/18$229
Tue 4/164:41 pmBWI - MLI
1 stop6h 36mDelta
Fri 4/195:03 pmMLI - BWI
1 stop6h 32mDelta
Deal found 3/17$231
Cheap flights to Peoria, IL
Tue 4/93:38 pmIAD - PIA
1 stop7h 32mAmerican Airlines
Sat 4/204:21 pmPIA - IAD
1 stop6h 38mAmerican Airlines
Deal found 3/17$219
Tue 4/169:59 amLGA - PIA
1 stop6h 52mAmerican Airlines
Tue 4/234:21 pmPIA - LGA
1 stop6h 29mAmerican Airlines
Deal found 3/17$225
Tue 4/93:38 pmIAD - PIA
1 stop7h 32mAmerican Airlines
Sat 4/204:21 pmPIA - IAD
1 stop6h 38mAmerican Airlines
Deal found 3/18$225
Thu 4/49:59 amLGA - PIA
1 stop6h 52mAmerican Airlines
Mon 4/84:21 pmPIA - LGA
1 stop5h 10mAmerican Airlines
Deal found 3/16$230
Thu 4/46:30 amLGA - PIA
2 stops26h 55mMultiple Airlines
Mon 4/83:19 pmPIA - LGA
3 stops22h 15mMultiple Airlines
Deal found 3/16$235
Mon 4/16:00 pmDCA - PIA
1 stop4h 00mUnited Airlines
Wed 4/106:45 amPIA - DCA
1 stop4h 41mUnited Airlines
Deal found 3/18$243
Mon 4/15:17 pmIAD - PIA
1 stop4h 43mUnited Airlines
Wed 4/106:45 amPIA - IAD
1 stop3h 58mUnited Airlines
Deal found 3/18$243
Thu 4/111:59 pmIAH - PIA
1 stop8h 11mAmerican Airlines
Mon 4/154:21 pmPIA - IAH
1 stop7h 47mAmerican Airlines
Deal found 3/17$245
Thu 4/116:40 amIAH - PIA
2 stops7h 45mAmerican Airlines
Mon 4/154:21 pmPIA - IAH
1 stop7h 47mAmerican Airlines
Deal found 3/17$250

Illinois 2024 flight deals

Explore flight deals for Illinois in 2024, offering the best prices and options to suit your preferences. In the last 7 days, Cheapflights users made a total of 3,145,932 searches and data were last updated on March 19, 2024.
Check out some of the best flight deals to Illinois in 2024. More deals are always being added, so be sure to check back regularly.
Tue 4/98:03 pmLGA - ORD
Nonstop2h 48mSpirit Airlines
Wed 4/107:07 amORD - LGA
1 stop6h 27mSpirit Airlines
Deal found 3/17$77
Wed 4/38:03 pmLGA - ORD
Nonstop2h 48mSpirit Airlines
Tue 4/95:20 pmORD - LGA
Nonstop2h 09mSpirit Airlines
Deal found 3/18$78
Sat 4/138:37 amLGA - ORD
Nonstop2h 37mSpirit Airlines
Sat 4/2011:11 amORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 3/16$80
Tue 5/148:35 amLGA - ORD
Nonstop2h 39mSpirit Airlines
Tue 5/146:40 pmORD - LGA
1 stop13h 20mSpirit Airlines
Deal found 3/18$81
Sat 5/188:04 pmLGA - ORD
Nonstop2h 37mSpirit Airlines
Wed 5/225:19 pmORD - LGA
Nonstop2h 09mSpirit Airlines
Deal found 3/18$82
Tue 4/169:55 amLGA - ORD
1 stop11h 14mSpirit Airlines
Tue 4/236:41 pmORD - LGA
1 stop13h 20mSpirit Airlines
Deal found 3/17$84
Wed 4/178:03 pmLGA - ORD
Nonstop2h 40mSpirit Airlines
Thu 4/185:09 pmORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 3/18$85
Thu 4/48:30 amLGA - ORD
Nonstop2h 46mSpirit Airlines
Mon 4/811:14 amORD - LGA
Nonstop2h 06mSpirit Airlines
Deal found 3/17$87
Sat 4/68:30 amLGA - ORD
Nonstop2h 46mSpirit Airlines
Tue 4/3011:11 amORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 3/17$88

Flights to Illinois departing soon

Discover available last-minute flight options to Illinois, providing immediate availability and potentially lower prices. In the last 7 days, Cheapflights users made a total of 3,145,932 searches and data was last updated on March 19, 2024.
Browse some of the flights available to Illinois departing last-minute. Double check the price, date, and time of your last-minute flight.
Wed 3/278:30 amLGA - ORD
Nonstop2h 46mSpirit Airlines
Wed 4/35:20 pmORD - LGA
Nonstop2h 09mSpirit Airlines
Deal found 3/17$95
Mon 3/256:30 amDEN - MLI
1 stop8h 28mAmerican Airlines
Tue 3/264:28 pmMLI - DEN
1 stop8h 33mAmerican Airlines
Deal found 3/18$229
Thu 3/213:30 pmLGA - PIA
1 stop7h 10mAmerican Airlines
Tue 3/264:19 pmPIA - LGA
1 stop6h 29mAmerican Airlines
Deal found 3/17$294

One-way flights to Illinois

Explore one-way flight options to Illinois for greater flexibility in your travel plans. Find up-to-date pricing and availability for one-way flights. In the last 7 days, Cheapflights users made a total of 3,145,932 searches and data was last updated on March 19, 2024.
Take a look at some of the best available flights traveling to Illinois at this time. Reserve a round-trip flight to Illinois instead by utilizing the search form above.
Wed 5/88:35 amLGA - ORD
Nonstop2h 39mSpirit Airlines
Deal found 3/18$32
Sat 4/135:47 amSFO - MLI
1 stop6h 37mAmerican Airlines
Deal found 3/16$114
Fri 5/105:50 amDFW - PIA
1 stop8h 42mMultiple Airlines
Deal found 3/17$102

Direct flights to Illinois

Thu 4/118:03 pmLGA - ORD
Nonstop2h 40mSpirit Airlines
Tue 4/2311:11 amORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 3/17$77
Wed 4/38:03 pmLGA - ORD
Nonstop2h 48mSpirit Airlines
Tue 4/95:20 pmORD - LGA
Nonstop2h 09mSpirit Airlines
Deal found 3/18$78
Sat 4/138:37 amLGA - ORD
Nonstop2h 37mSpirit Airlines
Sat 4/2011:11 amORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 3/16$80
Sat 5/188:04 pmLGA - ORD
Nonstop2h 37mSpirit Airlines
Wed 5/225:19 pmORD - LGA
Nonstop2h 09mSpirit Airlines
Deal found 3/18$82
Wed 4/178:03 pmLGA - ORD
Nonstop2h 40mSpirit Airlines
Thu 4/185:09 pmORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 3/18$85
Thu 4/48:30 amLGA - ORD
Nonstop2h 46mSpirit Airlines
Mon 4/811:14 amORD - LGA
Nonstop2h 06mSpirit Airlines
Deal found 3/17$87
Sat 4/68:30 amLGA - ORD
Nonstop2h 46mSpirit Airlines
Tue 4/3011:11 amORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 3/17$88
Thu 4/48:30 amLGA - ORD
Nonstop2h 46mSpirit Airlines
Sat 4/611:14 amORD - LGA
Nonstop2h 06mSpirit Airlines
Deal found 3/17$89
Fri 4/58:30 amLGA - ORD
Nonstop2h 46mSpirit Airlines
Sun 4/75:20 pmORD - LGA
Nonstop2h 09mSpirit Airlines
Deal found 3/18$91

Find flights to Illinois within your budget

Locate flights to Illinois that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 3,145,932 searches and data was last updated on March 19, 2024.

Fly from

Any airport

Budget

$46 - $127

Route

Depart

Return

Price

New York LaGuardiaChicago O'Hare Intl

LGA - ORD

LGAORD

New York LaGuardia

Wed 4/10

Nonstop2h 37m

Chicago O'Hare Intl

Wed 4/17

Nonstop2h 15m

$46

New York LaGuardiaChicago O'Hare Intl

LGA - ORD

LGAORD

New York LaGuardia

Wed 4/10

Nonstop2h 40m

Chicago O'Hare Intl

Wed 4/17

Nonstop2h 15m

$52

New York LaGuardiaChicago O'Hare Intl

LGA - ORD

LGAORD

New York LaGuardia

Tue 4/9

Nonstop2h 46m

Chicago O'Hare Intl

Tue 4/9

Nonstop2h 09m

$53

New York LaGuardiaChicago O'Hare Intl

LGA - ORD

LGAORD

New York LaGuardia

Thu 4/18

1 stop11h 51m

Chicago O'Hare Intl

Tue 4/23

Nonstop2h 15m

$92

Baltimore/WashingtonChicago O'Hare Intl

BWI - ORD

BWIORD

Baltimore/Washington

Tue 4/16

1 stop9h 26m

Chicago O'Hare Intl

Tue 4/23

1 stop8h 54m

$94

Washington, D.C. Reagan-NationalChicago O'Hare Intl

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Wed 4/10

Nonstop2h 16m

Chicago O'Hare Intl

Wed 4/17

Nonstop1h 48m

$97

Washington, D.C. Reagan-NationalChicago O'Hare Intl

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Wed 4/17

Nonstop2h 11m

Chicago O'Hare Intl

Thu 4/18

Nonstop1h 55m

$123

New York John F Kennedy IntlChicago O'Hare Intl

JFK - ORD

JFKORD

New York John F Kennedy Intl

Wed 5/8

Nonstop2h 56m

Chicago O'Hare Intl

Sat 5/11

Nonstop2h 28m

$127

New York LaGuardiaChicago O'Hare Intl

LGA - ORD

LGAORD

New York LaGuardia

Tue 6/18

Nonstop2h 45m

Chicago O'Hare Intl

Tue 7/23

Nonstop2h 18m

$127

Flights are sorted by cheapest first

Deals found on 3/17

Average price of flights to Illinois by month

Plan your trip to Illinois by taking into account the cheapest months to travel. The average price of a one-way flight to Illinois is currently $83 while a round-trip flight costs $90. Price data was last updated on March 10, 2024.

Currently, February is the cheapest month in which you can book a flight to Illinois (average of $245). Flying to Illinois in June will prove the most costly (average of $361). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

January

$248

February

$245

March

$280

April

$288

May

$292

June

$361

July

$338

August

$276

September

$258

October

$248

November

$271

December

$248

Temperature and rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average temperature and rainfall totals by month.

CHI

Temperature

23 - 73.4 °F

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

When is the best time to book a flight to Illinois?

Use this chart to determine the optimal time to book a round-trip flight to Illinois. Price data was last updated on January 28, 2024.
The best time to book flights to Illinois is 78 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated March 19, 2024.
Get a feel of what it's like to fly with Spirit Airlines, Frontier and American Airlines to Illinois by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
6,382 reviews

Boarding

8.3

Crew

8.8

Food

7.4

Overall

8.2

Entertainment

7.9

Comfort

8.1

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

Southwest
8.2
Very good
6,382 reviews
Southwest
8.2
Very good
6,382 reviews

Boarding

8.3

Crew

8.8

Food

7.4

Overall

8.2

Entertainment

7.9

Comfort

8.1

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

8.1
Very good
9,147 reviews
Southwest
8.2
Very good
6,382 reviews

Boarding

8.3

Crew

8.8

Food

7.4

Overall

8.2

Entertainment

7.9

Comfort

8.1

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

8.1
Very good
11,551 reviews
Southwest
8.2
Very good
6,382 reviews

Boarding

8.3

Crew

8.8

Food

7.4

Overall

8.2

Entertainment

7.9

Comfort

8.1

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

7.7
Good
4,934 reviews
Southwest
8.2
Very good
6,382 reviews

Boarding

8.3

Crew

8.8

Food

7.4

Overall

8.2

Entertainment

7.9

Comfort

8.1

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

7.6
Good
4,166 reviews
Southwest
8.2
Very good
6,382 reviews

Boarding

8.3

Crew

8.8

Food

7.4

Overall

8.2

Entertainment

7.9

Comfort

8.1

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

Brush up on your American history before your flight to Chicago: Home of President Abraham Lincoln, Lake Michigan, and ‘da Chicago Bears, Illinois has something for everyone. Whether you’re a history buff or a sports fanatic, it’s worth booking flights to Illinois.

The 21st state, located is the heart of the Midwest, is easy to get to thanks to two airports and one of the largest train stations in the country. Flights to Illinois are serviced by major airlines and Amtrak trains head right into the center of Chicago.

In between shopping and sports, make sure to visit one of Illinois’ numerous museums before boarding your Illinois flight home. The Burpee Museum of Natural History in Rockford features dinosaur fossils while the Abraham Lincoln Presidential Library and Museum in Springfield is the largest presidential library in the country. Tourists booking Illinois flights to Chicago can explore the John G. Shedd Aquarium, the Field Museum of Natural History, the Art Institute of Chicago, and the Museum of Science and Industry (Chicago).

Book a flight to Illinois to experience a plethora of cultures wrapped into one state.

Popular Destinations in Illinois

  • What is the climate like in Illinois?

    Winters along the Great Lakes are long and cold. From late November into April, there is plenty of snow, icy winds, and sub-freezing temperatures, but it’s also the best time to find cheap flights to Illinois. Conversely, July and August can be hot and sticky and good Illinois flight and hotel deals are usually available. Spring and fall tend to have perfect weather and are great times to visit, although the tornado season is March through May.Chicago summers can have temperatures well into the 90s with humidity to match. Winters are cold and raw with temperatures in the teens and occasional blizzards. Mild winters are not uncommon, but if booking Illinois flight and travel plans during the winter it’s advisable to pack with snow and cold in mind.

  • When is the best time to fly to Illinois?

    Peak Season: Winter is a prime time for skiing and snowmobiling in Illinois. Summer is the peak of the festival season in the Chicago area with major events taking place in the parks and neighborhoods every weekend, despite the heat and humidity. While many tourists gather on the great state of Illinois during the summer season, it’s more likely cheap flights to Illinois will be available during the winter months. Off Season: September can be the most enjoyable and mildest month of the year to visit Chicago, but there is less going on during this period. Fall is a wonderful time to visit the rest of the state and enjoy the milder temperatures and changing foliage. January to March is when Chicago is least busy and deals on hotels are usually attainable. However, it can be cold and windy.

  • What is the best way to travel around Illinois?

    A tough city to drive in, Chicago has convenient public transportation, taxis are easy to come by, and many areas are a pleasure to walk through. The Chicago Transit Authority operates the “L” (or “El”) a system of elevated trains that run 24 hours a day. There is also a River Bus that runs during rush hour in the summer, and the city is becoming increasingly bike friendly. Except for Chicago, Illinois is mostly a quiet, rural state. Yet Amtrak trains, numerous commuter railroads, and, to a lesser extent, buses make getting around on public transportation feasible. Cycling is also generally easy on the state’s flat plains. Once you reach your destination, check for local transportation, but be prepared to rent a car.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to Illinois by cabin class

Find flights to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Classfrom $180/person
Business Classfrom $174/person
Prem Econ Classfrom $181/person
Economy Classfrom $22/person

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Illinois?

Deals for Illinois flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets to Illinois?

Cheapflights simply makes it quick and affordable to book flights to Illinois by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights to Illinois with no change fees?

Yes, we can. To see specific flights to Illinois with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights to Illinois become cheaper?

Yes, Cheapflights offers price alerts on Illinois flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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