Cheap Flights to Illinois

Looking for cheap flights to Illinois? Compare airfare to major cities and airports across the state, including Chicago, Springfield, Rockford, Peoria, Moline, Champaign, Bloomington-Normal and other regional destinations.

Illinois is a major travel destination in the Midwest, offering the urban attractions of Chicago, the history of Springfield and Abraham Lincoln, outdoor experiences, scenic road trips and access to destinations throughout the state.

With ASAP Tickets, travelers can compare airlines, routes, travel dates and available fare options. The current Illinois page also features promotional fares and agent-assisted booking options, although advertised prices are subject to availability, travel dates and fare restrictions.

Compare available flights to Illinois, request a free quote, and explore airfare options that fit your travel plans.

Illinois Flight Information at a Glance

How Much Are Flights to Illinois?

Airfare to Illinois varies based on your departure city, destination airport, airline, travel dates, cabin class and booking window.

Because Chicago is the state’s primary international gateway, travelers should compare flights to both Chicago O’Hare (ORD) and Chicago Midway (MDW) when searching for airfare to Illinois.

For regional destinations, compare the total cost of flying directly into a nearby airport against flying to Chicago and continuing by ground transportation.

ASAP Tickets currently lists Chicago, Springfield, Rockford, Peoria, Moline, Champaign, Bloomington-Normal, Decatur, Quincy, Marion and other Illinois destinations on its state page.

Popular Flight Routes to Illinois

Travelers searching for cheap flights to Illinois from the USA can compare routes to Chicago and other major Illinois airports.

Chicago provides the largest range of flight options in the state. O’Hare’s official airport information currently lists 280+ nonstop destinations, 50+ airlines and more than 2,600 daily flights, making it the most connected starting point for many Illinois trips.

Best Airports to Fly Into Illinois

Illinois has several commercial airports, so the best airport depends on where you’re going.

Chicago O’Hare International Airport (ORD)

O’Hare is the primary international gateway for Illinois and one of the country’s major aviation hubs. It connects Chicago with destinations across the United States and around the world.

Best for:
International travelers, Chicago, northern Illinois and travelers looking for the widest range of flight options.

Chicago Midway International Airport (MDW)

Midway is another major Chicago airport and can be particularly useful for domestic travel.

Best for:
Chicago travelers, domestic routes and selected low-cost and regional itineraries.

Central Illinois Regional Airport (BMI)

Located in Bloomington-Normal, BMI is convenient for central Illinois.

Best for:
Bloomington, Normal and surrounding communities.

General Wayne A. Downing Peoria International Airport (PIA)

Peoria’s airport serves central Illinois and can reduce the need for a longer drive from Chicago.

Best for:
Peoria and central Illinois.

Quad City International Airport (MLI)

Located near Moline, MLI serves the Quad Cities region.

Best for:
Moline, Rock Island, East Moline and nearby western Illinois destinations.

Abraham Lincoln Capital Airport (SPI)

Springfield’s airport provides convenient access to Illinois’ state capital.

Best for:
Springfield, Lincoln-related attractions and central Illinois.

ASAP Tickets currently lists these and other airports among its Illinois airport destinations.

Chicago O’Hare vs. Chicago Midway

If your final destination is Chicago, compare both airports before booking.

If an itinerary requires traveling between O’Hare and Midway, allow sufficient connection time. Chicago’s airport authority notes that the CTA journey between the airports can take up to two hours, depending on the route and transfer.

Airlines Flying to Illinois

Illinois is served by many major U.S. and international airlines. Availability depends on the destination airport and travel dates.

O’Hare’s published destination information shows extensive domestic connectivity with airlines including American, United, Delta, Southwest, Frontier and others, while its international network includes carriers serving Europe, Asia, the Middle East and other regions.

Popular Illinois Destinations

Illinois is more than Chicago. Depending on your itinerary, consider flying directly into the airport closest to your final destination.

• Chicago: Chicago is the state’s primary tourism and business destination, known for architecture, museums, neighborhoods, food, sports, shopping and Lake Michigan. Enjoy Illinois highlights attractions such as Millennium Park, Navy Pier, the Art Institute of Chicago, the Field Museum, Shedd Aquarium and the Magnificent Mile.
• Springfield: Springfield is the Illinois state capital and a major destination for travelers interested in Abraham Lincoln, American history and Route 66. Attractions include the Abraham Lincoln Presidential Library & Museum and Route 66 experiences.
• Rockford: Rockford offers access to northern Illinois attractions, gardens, museums, outdoor recreation and nearby communities.
• Peoria: Peoria is a central Illinois destination with riverfront attractions, museums, restaurants and outdoor activities.
• Moline: Moline forms part of the Quad Cities region and provides access to western Illinois and the Mississippi River area.
• Champaign-Urbana: Champaign-Urbana is a major central Illinois destination, particularly for university-related travel, events and cultural activities.

Why Visit Illinois?

Illinois combines a major international city with historic towns, scenic landscapes and outdoor destinations.

• Experience Chicago: Explore the city’s architecture, museums, restaurants, neighborhoods, lakefront and entertainment. Chicago is also a strong starting point for exploring northern Illinois.
• Discover Lincoln’s Illinois: Springfield offers museums, historic attractions and Route 66 experiences connected to Abraham Lincoln and Illinois history.
• Explore the Outdoors: Illinois includes forests, rivers, trails, gardens, parks and scenic areas. The state tourism office highlights regions including Great Rivers Country, Land of Lincoln and southern Illinois’ Trails to Adventure.
• Take an Illinois Road Trip: Travelers can combine Chicago with destinations such as Springfield, Starved Rock, the Mississippi River region and southern Illinois.

Best Time to Visit Illinois

Illinois is a year-round destination, but the best time depends on your travel plans.

Spring and summer are particularly appealing for outdoor activities in Chicago and throughout the state. Enjoy Illinois highlights spring experiences ranging from Chicago’s lakefront and Riverwalk to trails, waterfalls and Route 66 events.

When Is the Best Time to Book Cheap Flights to Illinois?

There isn’t a single booking window that guarantees the lowest airfare. For domestic travel, start comparing fares several weeks to a few months before departure, and search earlier for holidays, major events and peak summer travel.

To find cheap flights to Illinois, consider:

• Comparing several departure dates
• Checking both ORD and MDW for Chicago trips
• Comparing regional Illinois airports
• Searching midweek departures
• Comparing nonstop and connecting flights
• Checking one-way and round-trip fares
• Booking ahead for major events
• Monitoring fares before purchasing

Smart Ways to Save on Flights to Illinois

• Compare Chicago Airports: If Chicago is your destination, search both O’Hare (ORD) and Midway (MDW) before choosing a flight.
• Check Regional Airports: If you’re traveling to central, southern or western Illinois, compare airports such as Springfield, Peoria, Moline, Bloomington-Normal and Champaign.
• Keep Your Dates Flexible: A departure or return date that is one or two days different can sometimes produce a different fare.
• Compare Total Trip Cost: A lower airfare isn’t necessarily cheaper if you need expensive ground transportation to reach your final destination.
• Search Midweek: Compare Tuesday and Wednesday departures as well as weekend options.
• Book Around Major Events: Chicago festivals, sporting events, conventions and holidays can increase demand. Booking earlier may provide more choice.
• Compare Airlines: Different airlines can have substantially different prices and baggage policies on the same route.

Illinois Travel Tips

• Check the airport code before booking.
• Make sure your arrival airport is convenient for your final destination.
• Compare ORD and MDW when visiting Chicago.
• Consider regional airports for destinations outside Chicago.
• Allow additional time during major Chicago events.
• Check winter weather conditions before traveling between December and February.
• Compare baggage allowances before selecting a fare.
• Consider public transportation when staying in central Chicago.
• Reserve accommodation early during major events and peak travel periods.
• If planning a road trip, compare rental-car and airport-transfer costs before booking.

Illinois Trip Ideas

Frequently Asked Questions About Cheap Flights to Illinois

How can I find cheap flights to Illinois?
Compare multiple travel dates, airlines and Illinois airports. If you’re visiting Chicago, search both O’Hare and Midway. For other destinations, compare regional airports with the cost of flying into Chicago and continuing by ground transportation.

What is the best airport to fly into Illinois?
For international travelers, Chicago O’Hare International Airport (ORD) generally offers the broadest selection of routes. However, the best airport depends on your final destination. Illinois also has airports in Springfield, Peoria, Moline, Bloomington-Normal, Champaign and other cities.

What are the main airports in Illinois?
Major airports include Chicago O’Hare (ORD), Chicago Midway (MDW), Central Illinois Regional (BMI), General Wayne A. Downing Peoria International (PIA), Quad City International (MLI), Abraham Lincoln Capital (SPI), Chicago Rockford International (RFD) and other regional airports.

Which airlines fly to Illinois?
Major airlines serving Illinois include American Airlines, United Airlines, Delta Air Lines, Southwest Airlines, Frontier Airlines, Spirit Airlines and JetBlue, along with numerous international carriers at O’Hare. Availability varies by airport and route.

Are there nonstop flights to Illinois?
Yes. Chicago O’Hare has an extensive nonstop network connecting Illinois with destinations throughout the United States and internationally.

Is Chicago the only destination in Illinois?
No. Travelers can also fly to Springfield, Rockford, Peoria, Moline, Champaign, Bloomington-Normal, Decatur, Quincy, Marion and other Illinois destinations.

When is the cheapest time to fly to Illinois?
There is no single cheapest month for every route. Compare fares outside major holidays and high-demand periods, and consider flexible travel dates and regional airports.

Should I fly to O’Hare or Midway?
Choose based on your destination, airline and airfare. O’Hare generally provides broader international and long-haul connectivity, while Midway can be convenient for many domestic trips.

How far in advance should I book a flight to Illinois?
For domestic travel, comparing fares several weeks to a few months ahead is a reasonable starting point. Book earlier when traveling around major holidays, festivals, sporting events or other periods of high demand.

Can I find last-minute flights to Illinois?
Last-minute fares are available on some routes, but prices and availability can change quickly. If your dates are flexible, compare multiple airports and airlines rather than relying on a single itinerary.

Book Cheap Flights to Illinois

Ready to plan your trip? Compare cheap flights to Illinois from major U.S. cities and explore Chicago, Springfield, Rockford, Peoria, Moline and other destinations across the state. Compare airlines, airports, travel dates and available airfare options with ASAP Tickets.

Request a free quote today and explore Illinois flight deals that fit your itinerary and budget.