Trip.com
>
Flights
>
Flights to United States
>
Flights to Mississippi
>
Flights to Decatur
>
Flights from Chicago to Decatur

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

      • CHI 13:00
        17h 25m
        1 stop
        DEC Invalid Date
        Chicago - Decatur | Fri, Apr 24 | Normal Airline
        DEC 15:00
        6h
        Nonstop
        CHI 16:00
        Decatur - Chicago | Sun, Apr 26 | Normal Airline
        Search
        Search
      • CHI 13:00
        17h 25m
        1 stop
        DEC Invalid Date
        Chicago - Decatur | Fri, Apr 24 | Normal Airline
        DEC 15:00
        6h
        Nonstop
        CHI 16:00
        Decatur - Chicago | Sun, Apr 26 | Normal Airline
        Search
        Search
      • CHI 13:00
        17h 25m
        1 stop
        DEC Invalid Date
        Chicago - Decatur | Fri, Apr 24 | Normal Airline
        DEC 15:00
        6h
        Nonstop
        CHI 16:00
        Decatur - Chicago | Sun, Apr 26 | Normal Airline
        Search
        Search
      • CHI 13:00
        17h 25m
        1 stop
        DEC Invalid Date
        Chicago - Decatur | Fri, Apr 24 | Normal Airline
        DEC 15:00
        6h
        Nonstop
        CHI 16:00
        Decatur - Chicago | Sun, Apr 26 | Normal Airline
        Search
        Search
      • CHI 13:00
        17h 25m
        1 stop
        DEC Invalid Date
        Chicago - Decatur | Fri, Apr 24 | Normal Airline
        DEC 15:00
        6h
        Nonstop
        CHI 16:00
        Decatur - Chicago | Sun, Apr 26 | Normal Airline
        Search
        Search
      • CHI 13:00
        17h 25m
        1 stop
        DEC Invalid Date
        Chicago - Decatur | Fri, Apr 24 | Normal Airline
        DEC 15:00
        6h
        Nonstop
        CHI 16:00
        Decatur - Chicago | Sun, Apr 26 | Normal Airline
        Search
        Search
      • CHI 13:00
        17h 25m
        1 stop
        DEC Invalid Date
        Chicago - Decatur | Fri, Apr 24 | Normal Airline
        DEC 15:00
        6h
        Nonstop
        CHI 16:00
        Decatur - Chicago | Sun, Apr 26 | Normal Airline
        Search
        Search
      • CHI 13:00
        17h 25m
        1 stop
        DEC Invalid Date
        Chicago - Decatur | Fri, Apr 24 | Normal Airline
        DEC 15:00
        6h
        Nonstop
        CHI 16:00
        Decatur - Chicago | Sun, Apr 26 | Normal Airline
        Search
        Search
      • CHI 13:00
        17h 25m
        1 stop
        DEC Invalid Date
        Chicago - Decatur | Fri, Apr 24 | Normal Airline
        DEC 15:00
        6h
        Nonstop
        CHI 16:00
        Decatur - Chicago | Sun, Apr 26 | Normal Airline
        Search
        Search
      • Cheapest nonstop
        ORD 16:49
        1h 8m
        Nonstop
        DEC 17:57
        Chicago - Decatur | Thu, Apr 23 | United Airlines
        US$144 US$154
        6% off
        6% off
        US$154 US$144
      • ORD 16:49
        1h 9m
        Nonstop
        DEC 17:58
        Chicago - Decatur | Tue, Apr 28 | United Airlines
        US$144 US$154
        6% off
        6% off
        US$154 US$144
      • CHI 13:00
        17h 25m
        1 stop
        DEC Invalid Date
        Chicago - Decatur | Fri, Apr 24 | Normal Airline
        Find more flights
        Find more flights

Displayed flight fares from Chicago to Decatur are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Chicago to Decatur Flight Details

The distance between Chicago and Decatur is about 249.17 km. The average flying time from Chicago to Decatur is around 1 hour 10 minutes. Based on Trip.com's latest data, travel demand is highest in July. The off-season for travel is October.

Cheapest one-way flight priceUS$144
Cheapest monthOctober
Peak season for travelJuly
Flight distance249.17 km
Average flight time1 hour 10 minutes
Flight statistics for the Chicago–Decatur route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • How long is a flight from Chicago to Decatur?

    It takes about 1 hour 10 minutes to fly from Chicago to Decatur.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Chicago to Decatur is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Chicago to Decatur, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Apr 23, with one-way flights priced at just US$144.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is United Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Decatur travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Chicago to Decatur is October, when demand for travel is lower.
  • After crunching the numbers on our April flight calendar, it's currently cheapest to fly from Chicago to Decatur on April 30, 2026 with United Airlines, with prices starting at US$150.
  • The time difference between Decatur and Chicago is 0h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Trip.com Airline Insights on Flights from Chicago to Decatur

How many flights fly from Chicago to Decatur daily?

The data is based on the flight numbers for each day of the week from Chicago to Decatur within the Trip.com database over the past month.

Based on the past month's historical data from Trip.com, the number of flights from Chicago to Decatur is the highest on Friday and the lowest on Tuesday.

10
7
3
0
Highest
8
Mon
3
Tue
8
Wed
6
Thu
10
Fri
4
Sat
9
Sun

Explore More Popular Flights

Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.