$103 Find Cheap Flights from Connecticut to Illinois - Compare and Save

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 Connecticut to Illinois.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Connecticut to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

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 from Connecticut to Illinois with an airline and back with another airline.

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

Connecticut and Illinois are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (36 flights per week), Air New Zealand (28 flights per week), and American Airlines (21 flights per week).

There are 12 airports in Illinois. The busiest airport is Chicago O'Hare Airport (ORD), with 91% of all flights arriving there.

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Illinois is Chicago O'Hare Intl Airport (ORD), with an average flight price of $285.

Based on KAYAK data, the cheapest day to fly to Illinois is Wednesday where round-trip tickets can be as cheap as $456. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $575 on average.

The cheapest time of day to fly to Illinois is generally at night, when round-trip flights cost $430 on average. Morning departures are around 13% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the morning, which is peak travel time and where the average cost of a ticket is $500.

The cheapest ticket to Illinois from Connecticut found in the last 5 days was to Chicago Midway Airport, at $140 round-trip. The most popular route is Hartford (BDL) to Chicago Midway Airport (MDW) and the cheapest round-trip airline ticket found on this route in the last 5 days was $140.

The cheapest month for flights from Connecticut to Illinois is September, when tickets cost $189 (return) on average. On the other hand, the most expensive months are February and August, when the average cost of round-trip tickets is $299 and $279 respectively.

From Connecticut, there are direct flights to Illinois from 2 cities. The city with the most direct flights is Hartford, with 174 direct flights each week.

There are around 26 direct flights from within Connecticut to Illinois every day. Most flights (74%) depart in the morning.

Each week there are around 178 direct flights from within Connecticut to Illinois. The most common day for departures is Monday, with 15% of flights taking off on this day.

An average nonstop flight from Connecticut to Illinois takes 5h 21m, covering a distance of 827 miles. The shortest route is New York LaGuardia Airport (LGA) to Chicago Midway Airport (MDW) with an average flight time of 2h 15m.

There are not any long-haul (6-12 hour flight duration) or medium-haul (3-6 hour flight duration) flights to Illinois. Instead, there are 178 short-haul flights (up to 3 hour flight duration), with the most arriving from Hartford.

Based on KAYAK flight searches, the most popular destination is Chicago (92% of total searches to Illinois). The next most popular destinations are St. Louis (7%) and Moline (0%). Searches for flights to Peoria (0%), to Evansville (0%) and to Bloomington (0%) are also popular.