Cheap flights from Chicago to Decatur

Flight deals from Chicago to Decatur

Below you can see the best deals on flights Chicago — Decatur for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 22 September, from $83.

Top 10 cheap flights from Chicago to Decatur

About the Chicago — Decatur flight

Looking for cheap flights from Chicago to Decatur? Compare fares from different airlines, check the flight schedule and travel time — and book your Chicago — Decatur ticket online at the best price.

The route has direct flights — around 19 flights per week, flights are operated by United Airlines, a nonstop flight takes about 1 h 11 min, the distance between the cities is around 946 km.

Planning your trip? You may find our Decatur travel guide, how to get from the airport into town and Decatur weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

from $79Min. price

MayCheapest

JanuaryPeak season

YesDirect flights

946 kmDistance

1 h 11 minTravel time

1Airlines

19 / wkFlights

Flight schedule from Chicago to Decatur

The table shows direct flights from Chicago to Decatur on the selected date. The flight takes approximately 1 h 11 min. Regular flights are operated by United Airlines. Departures from O'Hare International Airport, Chicago Midway International Airport and Midway International Airport airports, arrivals at Decatur Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today

Any time

Last update: 01 Sep 2026

Airline

Flight

Departure

Arrival

Duration

Days

Status

Below is a calendar of the lowest flight ticket prices for Chicago — Decatur by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $79 in May, and the most expensive are around $90 in January. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

Prices by month

Average one-way fares from Chicago to Decatur by month. Tickets are usually cheapest in February (around $127) and priciest in December (about $199) — use the table and chart below to pick the best time to fly.

Month	Average price	Level	Month	Average price	Level	Month	Average price	Level
Jan	$132	low	May	$160	medium	Sep	$149	low
Feb	$127	low	Jun	$182	high	Oct	$154	medium
Mar	$149	medium	Jul	$193	high	Nov	$187	high
Apr	$143	low	Aug	$176	high	Dec	$199	high

Some values are estimated based on seasonality.

When to fly

Weather in Decatur: it is warmest in July (up to 31 °C on average) and coolest in January (around 11 °C). The driest month is October.

Tickets are usually cheapest in May and most expensive in January. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Decatur

Dry and wet days · Decatur

Wind speed and direction · Decatur

We'll let you know if you need a visa

Enter your destination or

Your nationality

Destination

How to get the best deal on a Chicago — Decatur ticket

Book ahead: fares for Chicago — Decatur are usually lower 3–8 weeks before departure than at the last minute.
Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
Chicago is served by more than one airport — compare fares and travel time to each before you book.
Flights Chicago — Decatur operate on Wednesdays, Thursdays and Fridays — keep that in mind when picking your travel dates.
The cheapest month to fly to Decatur is usually May — plan your trip around it if your dates are flexible.
Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Flights on the Chicago — Decatur route are operated by 1 airline; United Airlines runs the most flights (around 100% of all flights). Compare carriers, flight shares and schedules below.

United AirlinesUA
6x/week
WebsiteFleet: 956165M pax/year
- Direct flight ORD → DEC6x/week
  Duration
  1h 6m
  Days
  MTWTFSS
100.0%Open →

Cities and airports on the Chicago — Decatur route

Flights Chicago — Decatur depart from O'Hare International Airport, Chicago Midway International Airport, Midway International Airport and Chicago Rockford International Airport and arrive at Decatur Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Chicago

CHI

United States

About the city How to get there Weather All about the country United States

Arrival

Decatur

DEC

United States

About the city How to get there Weather All about the country United States

Departure airports

O'Hare International AirportORD
About the airport
Chicago Midway International AirportMDW
About the airport
Midway International AirportNOH
About the airport
Chicago Rockford International AirportRFD
About the airport

Arrival airports

Decatur AirportDEC
About the airport

Where to go

Where a techno fan should go: best clubs in Europe

Planning a trip to the world’s main techno hotspots requires not only a love for music but also an understanding of local cultural codes. Today, the electronic scene is a powerful unifying tool, trans…

Interesting

Gen Z Travel Trends

Generation Z (Gen Zers, born between 1997 and 2012) is the first demographic group that doesn’t remember a world without the internet. They grew up observing “perfect lives” on social media, and… reje…

Useful information

Abandoned Cities: 5 Places Where Time Stood Still

Sometimes a trip needs a little adrenaline. And you don’t necessarily have to parachute, paraglide over the city (which is also very cool!) or provoke local bandits by walking alone in dark alleys. Yo…

Useful information

Albania Welcomes Tourists: Planning Your Trip

It turns out that Albania is quietly nestled between Montenegro and Greece, waiting for tourists. There are no direct flights there yet, so you’ll have to fly with a layover. But on the other hand, th…

Interesting

Graffiti: Where to go for street art

Long gone are the days when graffiti was considered solely vandalism. Today, street art is a powerful and vibrant direction of contemporary art, transforming gray city walls into open-air galleries. A…

Where to go

What to see in Tbilisi

Tbilisi is a city embraced by mountains, permeated with the aroma of wine and spices, and its streets whisper ancient legends. The capital of Georgia is an amazing mix of antiquity and modernity, Euro…

Frequently asked questions about the Chicago — Decatur flight

How long is the flight from Chicago to Decatur?

A nonstop Chicago — Decatur flight takes about 1 h 11 min — the distance between the cities is around 946 km.

How far is it from Chicago to Decatur?

The distance from Chicago to Decatur is about 946 km, which a nonstop flight covers in around 1 h 11 min.

Are there direct flights from Chicago to Decatur?

Yes, there are nonstop flights Chicago — Decatur — around 19 flights per week.

Which airlines fly from Chicago to Decatur?

Airlines operating Chicago — Decatur include United Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do Chicago — Decatur flights use?

Flights from Chicago depart from O'Hare International Airport, Chicago Midway International Airport, Midway International Airport, and arrive at Decatur Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Chicago to Decatur?

The price of a Chicago — Decatur ticket depends on your travel date, season and demand: it is usually cheapest to fly in May, and most expensive in January. Tickets typically cost between $79 and $90. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Chicago — Decatur?

Flights Chicago — Decatur are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is May. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Chicago to Decatur?

To catch a low fare Chicago — Decatur, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually May.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.