$98 Find Cheap Flights from Decatur to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Decatur to Illinois departing on 7/30. 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.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Decatur to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Decatur to Illinois, as well as popular online travel agencies
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Cheap Flights from Decatur to Illinois

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Decatur to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Decatur to Illinois

Wed, Jul 16 - Sun, Jul 20
United Airlines Logo
9:45 am - 10:55 amDEC-ORD
1h 10mnonstop
United Airlines Logo
7:45 am - 8:48 amORD-DEC
1h 03mnonstop
$159United Airlines
Find Deal
Wed, Aug 27 - Thu, Sep 11
United Airlines Logo
9:42 am - 10:57 amDEC-ORD
1h 15mnonstop
United Airlines Logo
4:50 pm - 5:59 pmORD-DEC
1h 09mnonstop
$170United Airlines
Find Deal
Tue, Aug 19 - Thu, Aug 21
United Airlines Logo
9:42 am - 10:57 amDEC-ORD
1h 15mnonstop
United Airlines Logo
4:50 pm - 5:59 pmORD-DEC
1h 09mnonstop
$191United Airlines
Find Deal
Sun, Jul 13 - Tue, Jul 15
United Airlines Logo
6:55 pm - 8:03 pmDEC-ORD
1h 08mnonstop
United Airlines Logo
7:45 am - 8:48 amORD-DEC
1h 03mnonstop
$241United Airlines
Find Deal
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KAYAK's insights & trends for Decatur to Illinois flights

Get data-powered insights and trends into flights from Decatur to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Decatur to Illinois flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Decatur to Illinois.

The cheapest ticket to Illinois from Decatur found in the last 72 hours was to Chicago, at $158 round-trip. The most popular route is from Decatur (DEC) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $158.

What’s the cheapest day of the week to fly from Decatur to Illinois?

The average price of all round-trip flights from Decatur to Illinois clicked on KAYAK for each day over the last 12 months.

For Decatur to Illinois, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Illinois back to Decatur, the best deals are generally found on Tuesday, with Saturday being the most expensive.

Find deals

Good to know

Cheapest flight$98
Flight from Decatur to Chicago

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Decatur to Illinois?

    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 Decatur to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Decatur to Illinois?

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

  • What is the Hacker Fare option on flights from Decatur to Illinois?

    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 Decatur to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Decatur to Illinois?

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

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally in the afternoon, when round-trip flights cost $340 on average. Morning departures are around 9% 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 $446.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Decatur to the following destinations at these prices or less: Chicago $319 one-way - $339 round-trip

Reviews of the top airline flying from Decatur to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Decatur to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Decatur to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8861 reviews
8.1Crew
7.0Entertainment
7.7Boarding
6.6Food
7.3Comfort
Airline reviews

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

6.0 GoodAnonymous, Jun 2025MLI - ORD
Read more United Airlines reviews

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

I liked that the flight was nonstop from ORD to CIU for $200 round trip.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

The first flight was better in terms of the aircraft.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

Overall poor for me I paid extra for seats with leg room and my regional flights exit row seats have less leg room then the others that's money that could have been saved and on my final flight home the flights air was not operating it was unbearably hot in the cabin I will be contacting United and filing a DOT complaint

There's just no way to sit fully upright and comfortably in these seats. There needs to be 2 more inches of room, and that's not something that only one person on the flight needs - the whole flight needs 2 more inches of room. If that means you sell 6 less seats, so be it. It's too close for anyone. Forcing people to pay for "premium" economy just to get "barely enough space to breathe" isn't really an answer to that.

The crew were very nice. The Chocolate is good and v there’s no entertainment. Thanks

The crew were very nice. I would have appreciated a pillow for comfort. I had a special meal that was sloppy, but the salad was great. Thanks

Everything you need to know for your flight from Decatur to Illinois

Information on your arrival and departure airports

Decatur (DEC)

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