Cheap flights to Illinois from $26

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 4/17. 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
Apr 2 — Apr 91

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 3,238,496 searches and data was last updated on March 28, 2024.

Popular in

June

Cheapest in

February

Average price

$239

Round-trip from

$75

One-way from

$36
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 28, 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
Sat 4/2710:29 pmDFW - ORD
Nonstop2h 23mFrontier
Sat 5/46:25 pmORD - DFW
Nonstop2h 37mFrontier
Deal found 3/27$66
Fri 4/1910:49 pmDFW - ORD
Nonstop2h 23mFrontier
Tue 4/236:47 pmORD - DFW
Nonstop2h 37mFrontier
Deal found 3/27$68
Wed 4/2410:29 pmDFW - ORD
Nonstop2h 23mMultiple Airlines
Sun 4/285:45 amORD - DFW
Nonstop2h 38mMultiple Airlines
Deal found 3/27$72
Sat 4/1310:29 pmDFW - ORD
Nonstop2h 23mMultiple Airlines
Mon 4/157:23 amORD - DFW
Nonstop2h 38mMultiple Airlines
Deal found 3/27$74
Tue 4/308:37 amLGA - ORD
Nonstop2h 37mSpirit Airlines
Mon 5/611:11 amORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 3/27$75
Wed 4/108:37 amLGA - ORD
Nonstop2h 37mSpirit Airlines
Tue 4/165:36 pmORD - LGA
1 stop13h 06mSpirit Airlines
Deal found 3/27$77
Wed 4/178:52 amDFW - ORD
Nonstop2h 28mMultiple Airlines
Wed 4/176:47 pmORD - DFW
Nonstop2h 37mMultiple Airlines
Deal found 3/27$77
Tue 4/168:37 amLGA - ORD
Nonstop2h 37mSpirit Airlines
Tue 4/166:41 pmORD - LGA
1 stop13h 20mSpirit Airlines
Deal found 3/27$78
Fri 4/2610:49 pmDFW - ORD
Nonstop2h 23mFrontier
Mon 4/296:47 pmORD - DFW
Nonstop2h 37mFrontier
Deal found 3/27$78
Cheap flights to Moline, IL
Tue 4/168:16 amDEN - MLI
1 stop6h 43mAmerican Airlines
Sat 4/204:29 pmMLI - DEN
1 stop7h 37mAmerican Airlines
Deal found 3/27$215
Wed 4/173:35 pmDCA - MLI
1 stop7h 27mAmerican Airlines
Tue 4/234:29 pmMLI - DCA
1 stop4h 46mAmerican Airlines
Deal found 3/27$225
Sat 4/138:16 amDEN - MLI
1 stop6h 43mAmerican Airlines
Sun 4/145:55 amMLI - DEN
1 stop5h 09mAmerican Airlines
Deal found 3/27$226
Sat 4/204:00 pmDCA - MLI
1 stop7h 17mDelta
Wed 4/245:03 pmMLI - DCA
1 stop5h 54mDelta
Deal found 3/26$228
Sun 4/145:45 amDEN - MLI
1 stop4h 23mAmerican Airlines
Tue 4/164:29 pmMLI - DEN
1 stop7h 18mAmerican Airlines
Deal found 3/27$230
Sat 4/279:00 amSFO - MLI
1 stop11h 02mAmerican Airlines
Tue 4/303:49 pmMLI - SFO
1 stop7h 09mAmerican Airlines
Deal found 3/27$242
Wed 4/178:56 amIAH - MLI
1 stop7h 03mAmerican Airlines
Sat 4/204:29 pmMLI - IAH
1 stop7h 39mAmerican Airlines
Deal found 3/26$245
Wed 4/179:26 amBWI - MLI
1 stop7h 33mAmerican Airlines
Tue 4/232:49 pmMLI - BWI
1 stop6h 13mAmerican Airlines
Deal found 3/27$246
Sat 4/201:59 pmIAH - MLI
1 stop8h 03mAmerican Airlines
Fri 5/316:00 amMLI - IAH
1 stop4h 53mAmerican Airlines
Deal found 3/27$246
Cheap flights to Peoria, IL
Mon 4/2211:32 amDEN - PIA
Nonstop2h 05mAllegiant Air
Fri 5/39:12 amPIA - DEN
Nonstop2h 27mAllegiant Air
Deal found 3/27$122
Mon 4/1511:32 amDEN - PIA
Nonstop2h 05mAllegiant Air
Fri 4/199:15 amPIA - DEN
Nonstop2h 27mAllegiant Air
Deal found 3/27$135
Mon 4/2211:32 amDEN - PIA
Nonstop2h 05mMultiple Airlines
Fri 5/33:22 pmPIA - DEN
1 stop8h 27mMultiple Airlines
Deal found 3/27$208
Mon 4/1511:32 amDEN - PIA
Nonstop2h 05mMultiple Airlines
Fri 4/193:27 pmPIA - DEN
1 stop8h 20mMultiple Airlines
Deal found 3/27$215
Sat 4/206:03 amLAX - PIA
1 stop7h 48mAmerican Airlines
Tue 4/237:05 amPIA - LAX
1 stop9h 00mAmerican Airlines
Deal found 3/26$241
Fri 4/1912:15 amLAX - PIA
1 stop8h 37mAmerican Airlines
Tue 4/237:05 amPIA - LAX
1 stop9h 00mAmerican Airlines
Deal found 3/26$242
Fri 4/267:00 pmEWR - PIA
1 stop16h 10mMultiple Airlines
Fri 5/33:22 pmPIA - EWR
1 stop5h 16mMultiple Airlines
Deal found 3/27$245
Wed 4/39:01 amDEN - PIA
1 stop4h 55mAmerican Airlines
Fri 4/54:21 pmPIA - DEN
1 stop7h 45mAmerican Airlines
Deal found 3/27$245
Fri 4/266:42 amLGA - PIA
1 stop5h 15mAmerican Airlines
Fri 5/34:21 pmPIA - LGA
1 stop6h 29mAmerican Airlines
Deal found 3/27$246

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 3,238,496 searches and data were last updated on March 28, 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.
Sat 4/2710:29 pmDFW - ORD
Nonstop2h 23mFrontier
Sat 5/46:25 pmORD - DFW
Nonstop2h 37mFrontier
Deal found 3/27$66
Fri 4/1910:49 pmDFW - ORD
Nonstop2h 23mFrontier
Tue 4/236:47 pmORD - DFW
Nonstop2h 37mFrontier
Deal found 3/27$68
Tue 5/710:29 pmDFW - ORD
Nonstop2h 23mFrontier
Fri 5/107:07 pmORD - DFW
Nonstop2h 37mFrontier
Deal found 3/27$70
Wed 4/2410:29 pmDFW - ORD
Nonstop2h 23mMultiple Airlines
Sun 4/285:45 amORD - DFW
Nonstop2h 38mMultiple Airlines
Deal found 3/27$72
Wed 5/1510:29 pmDFW - ORD
Nonstop2h 23mFrontier
Sat 5/184:00 pmORD - DFW
Nonstop2h 31mFrontier
Deal found 3/27$73
Sat 4/1310:29 pmDFW - ORD
Nonstop2h 23mMultiple Airlines
Mon 4/157:23 amORD - DFW
Nonstop2h 38mMultiple Airlines
Deal found 3/27$74
Wed 5/18:03 pmLGA - ORD
Nonstop2h 40mSpirit Airlines
Thu 5/305:19 pmORD - LGA
Nonstop2h 09mSpirit Airlines
Deal found 3/27$75
Wed 4/108:37 amLGA - ORD
Nonstop2h 37mSpirit Airlines
Tue 4/165:36 pmORD - LGA
1 stop13h 06mSpirit Airlines
Deal found 3/27$77
Wed 4/178:52 amDFW - ORD
Nonstop2h 28mMultiple Airlines
Wed 4/176:47 pmORD - DFW
Nonstop2h 37mMultiple Airlines
Deal found 3/27$77

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 3,238,496 searches and data was last updated on March 28, 2024.
Browse some of the flights available to Illinois departing last-minute. Double check the price, date, and time of your last-minute flight.
Sat 4/611:00 pmDFW - ORD
Nonstop2h 25mSpirit Airlines
Sat 4/137:11 pmORD - DFW
Nonstop2h 41mSpirit Airlines
Deal found 3/27$116
Fri 4/59:26 amBWI - MLI
1 stop7h 33mAmerican Airlines
Sun 4/76:24 amMLI - BWI
1 stop7h 21mAmerican Airlines
Deal found 3/27$280
Wed 4/39:01 amDEN - PIA
1 stop4h 55mAmerican Airlines
Fri 4/54:21 pmPIA - DEN
1 stop7h 45mAmerican Airlines
Deal found 3/27$245

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 3,238,496 searches and data was last updated on March 28, 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 4/178:37 amLGA - ORD
Nonstop2h 37mSpirit Airlines
Deal found 3/26$26
Sun 4/147:04 pmPDX - MLI
1 stop15h 23mMultiple Airlines
Deal found 3/27$140
Thu 5/97:00 amLGA - PIA
1 stop26h 22mMultiple Airlines
Deal found 3/28$91

Direct flights to Illinois

Tue 4/1610:29 pmDFW - ORD
Nonstop2h 23mFrontier
Wed 4/176:47 pmORD - DFW
Nonstop2h 37mFrontier
Deal found 3/27$58
Sat 4/1310:29 pmDFW - ORD
Nonstop2h 23mFrontier
Wed 4/176:47 pmORD - DFW
Nonstop2h 37mFrontier
Deal found 3/28$59
Wed 4/2410:29 pmDFW - ORD
Nonstop2h 23mFrontier
Wed 5/16:47 pmORD - DFW
Nonstop2h 37mFrontier
Deal found 3/27$62
Sat 4/2710:29 pmDFW - ORD
Nonstop2h 23mFrontier
Sat 5/46:25 pmORD - DFW
Nonstop2h 37mFrontier
Deal found 3/27$66
Fri 4/1910:49 pmDFW - ORD
Nonstop2h 23mFrontier
Tue 4/236:47 pmORD - DFW
Nonstop2h 37mFrontier
Deal found 3/27$68
Wed 4/1010:29 pmDFW - ORD
Nonstop2h 23mFrontier
Tue 4/166:47 pmORD - DFW
Nonstop2h 37mFrontier
Deal found 3/28$69
Tue 5/710:29 pmDFW - ORD
Nonstop2h 23mFrontier
Fri 5/107:07 pmORD - DFW
Nonstop2h 37mFrontier
Deal found 3/27$70
Wed 4/2410:29 pmDFW - ORD
Nonstop2h 23mMultiple Airlines
Sun 4/285:45 amORD - DFW
Nonstop2h 38mMultiple Airlines
Deal found 3/27$72
Wed 5/1510:29 pmDFW - ORD
Nonstop2h 23mFrontier
Sat 5/184:00 pmORD - DFW
Nonstop2h 31mFrontier
Deal found 3/27$73

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 3,238,496 searches and data was last updated on March 28, 2024.

Fly from

Any airport

Budget

$66 - $127

Route

Depart

Return

Price

Dallas/Fort WorthChicago O'Hare Intl

DFW - ORD

DFWORD

Dallas/Fort Worth

Sat 4/27

Nonstop2h 23m

Chicago O'Hare Intl

Sat 5/4

Nonstop2h 37m

$66

Dallas/Fort WorthChicago O'Hare Intl

DFW - ORD

DFWORD

Dallas/Fort Worth

Fri 4/19

Nonstop2h 23m

Chicago O'Hare Intl

Tue 4/23

Nonstop2h 37m

$68

Dallas/Fort WorthChicago O'Hare Intl

DFW - ORD

DFWORD

Dallas/Fort Worth

Wed 4/24

Nonstop2h 23m

Chicago O'Hare Intl

Sun 4/28

Nonstop2h 38m

$72

New York LaGuardiaChicago O'Hare Intl

LGA - ORD

LGAORD

New York LaGuardia

Wed 5/1

Nonstop2h 40m

Chicago O'Hare Intl

Thu 5/30

Nonstop2h 09m

$75

Seattle/Tacoma IntlChicago O'Hare Intl

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Tue 4/23

Nonstop3h 59m

Chicago O'Hare Intl

Wed 4/24

Nonstop4h 34m

$111

Seattle/Tacoma IntlChicago O'Hare Intl

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Wed 4/24

Nonstop3h 59m

Chicago O'Hare Intl

Sat 4/27

Nonstop4h 34m

$113

Baltimore/WashingtonChicago O'Hare Intl

BWI - ORD

BWIORD

Baltimore/Washington

Wed 5/1

Nonstop2h 18m

Chicago O'Hare Intl

Sat 5/4

Nonstop1h 48m

$119

New York John F Kennedy IntlChicago O'Hare Intl

JFK - ORD

JFKORD

New York John F Kennedy Intl

Tue 5/7

Nonstop2h 50m

Chicago O'Hare Intl

Wed 5/8

Nonstop2h 23m

$127

New York LaGuardiaChicago O'Hare Intl

LGA - ORD

LGAORD

New York LaGuardia

Wed 5/8

Nonstop2h 35m

Chicago O'Hare Intl

Wed 5/15

Nonstop2h 15m

$127

Flights are sorted by cheapest first

Deals found on 3/27

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 $86 while a round-trip flight costs $98. Price data was last updated on March 24, 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

$286

May

$291

June

$361

July

$336

August

$277

September

$258

October

$248

November

$270

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 28, 2024.
Get a feel of what it's like to fly with Frontier, Spirit Airlines and United 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
6,332 reviews

Food

7.4

Crew

8.8

Overall

8.2

Boarding

8.3

Comfort

8.1

Entertainment

7.9

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

Southwest
8.2
Very good
6,332 reviews
Southwest
8.2
Very good
6,332 reviews

Food

7.4

Crew

8.8

Overall

8.2

Boarding

8.3

Comfort

8.1

Entertainment

7.9

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

8.1
Very good
9,127 reviews
Southwest
8.2
Very good
6,332 reviews

Food

7.4

Crew

8.8

Overall

8.2

Boarding

8.3

Comfort

8.1

Entertainment

7.9

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

8.1
Very good
11,418 reviews
Southwest
8.2
Very good
6,332 reviews

Food

7.4

Crew

8.8

Overall

8.2

Boarding

8.3

Comfort

8.1

Entertainment

7.9

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

7.7
Good
4,840 reviews
Southwest
8.2
Very good
6,332 reviews

Food

7.4

Crew

8.8

Overall

8.2

Boarding

8.3

Comfort

8.1

Entertainment

7.9

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

7.3
Good
451 reviews
Southwest
8.2
Very good
6,332 reviews

Food

7.4

Crew

8.8

Overall

8.2

Boarding

8.3

Comfort

8.1

Entertainment

7.9

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

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Find flights to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Classfrom $138/person
Business Classfrom $174/person
Prem Econ Classfrom $182/person
Economy Classfrom $22/person
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