$90 Find Cheap Flights from Texas 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 Texas to Illinois.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Texas 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 Texas 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 Texas to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Texas and Illinois are connected by different airlines. The airlines that fly that route the most regularly are American Airlines (262 flights per week), United Airlines (205 flights per week), and Southwest (146 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 Midway Airport (MDW), with an average flight price of $237.

Based on KAYAK data, the cheapest day to fly to Illinois is Friday where round-trip tickets can be as cheap as $281. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $544 on average.

The cheapest time of day to fly to Illinois is generally at night, when round-trip flights cost $252 on average. Morning departures are around 25% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the evening, which is peak travel time and where the average cost of a ticket is $467.

The cheapest ticket to Illinois from Texas found in the last 5 days was to Chicago Midway Airport, at $127 round-trip. The most popular route is Austin (AUS) to Chicago Midway Airport (MDW) and the cheapest round-trip airline ticket found on this route in the last 5 days was $127.

The cheapest month for flights from Texas to Illinois is October, when tickets cost $146 (return) on average. On the other hand, the most expensive months are July and March, when the average cost of round-trip tickets is $206 and $200 respectively.

To get a below average price on the flight from Texas to Illinois, you should book around 3 weeks before departure, which saves you about 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

From Texas, there are direct flights to Illinois from 5 cities. The city with the most direct flights is Dallas, with 841 direct flights each week.

There are around 289 direct flights from within Texas to Illinois every day. Most flights (41%) depart in the morning.

Each week there are around 2,021 direct flights from within Texas to Illinois. The most common day for departures is Sunday, with 15% of flights taking off on this day.

An average nonstop flight from Texas to Illinois takes 4h 21m, covering a distance of 894 miles. The shortest route is Dallas/Fort Worth Airport (DFW) to St. Louis (STL) with an average flight time of 1h 40m.

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 2,021 short-haul flights (up to 3 hour flight duration), with the most arriving from Dallas.

Based on KAYAK flight searches, the most popular destination is Chicago (93% of total searches to Illinois). The next most popular destinations are St. Louis (5%) and Moline (1%). Searches for flights to Peoria (1%), to Bloomington (0%) and to Evansville (0%) are also popular.