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Decatur

$386+ Cheap flights from Aurora, CO to Decatur, IL (DEC)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DEC
Apr 28 — May 51
Tue 4/28
Tue 5/5
1 adult, Economy
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Cheap flight deals from Aurora to Decatur

Cheapest flights from Aurora to Decatur
Explore the most affordable flight options available from Aurora to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 29, 2026.

This United Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:00 am
DEN
-
DEC
1 stop10h 58m
United Airlines
Tue 5/127:25 pm
DEC
-
DEN
1 stop27h 54m
United Airlines
Deal found 3/24$386
This United Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/109:05 pm
DEN
-
DEC
1 stop19h 51m
United Airlines
Sun 6/147:05 pm
DEC
-
DEN
1 stop6h 48m
United Airlines
Deal found 3/28$426
This United Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/119:05 pm
DEN
-
DEC
1 stop19h 51m
United Airlines
Sun 6/147:05 pm
DEC
-
DEN
1 stop6h 48m
United Airlines
Deal found 3/28$438
This United Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/39:05 pm
DEN
-
DEC
1 stop10h 52m
United Airlines
Sun 6/77:05 pm
DEC
-
DEN
1 stop12h 36m
United Airlines
Deal found 3/28$448
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:05 pm
DEN
-
DEC
1 stop12h 41m
United Airlines
Sat 10/246:55 pm
DEC
-
DEN
1 stop5h 23m
United Airlines
Deal found 3/26$454
This United Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/237:40 pm
DEN
-
DEC
1 stop12h 17m
United Airlines
Sun 7/269:37 am
DEC
-
DEN
1 stop22h 05m
United Airlines
Deal found 3/27$472
This United Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/86:00 am
DEN
-
DEC
1 stop10h 57m
United Airlines
Sun 4/127:37 pm
DEC
-
DEN
1 stop6h 21m
United Airlines
Deal found 3/24$489
This United Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/138:20 pm
DEN
-
DEC
1 stop11h 38m
United Airlines
Sun 5/179:42 am
DEC
-
DEN
1 stop15h 08m
United Airlines
Deal found 3/24$509

Find flight deals from Aurora to Decatur

Keep the following information in mind while searching for Aurora to Decatur flight deals. Data was last updated March 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$426
(United Airlines)
Provider with most accurate pricing for Denver Intl-Decatur Arpt flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Decatur Arpt flights.
Search Deals
From Aurora to Decatur Arpt
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Aurora to Decatur that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 29, 2026.
Use the filters below to find and compare flights from Aurora to Decatur that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Wed 5/6

6:00 am-5:58 pm

1 stop10h 58m

Decatur Arpt

Tue 5/12

7:25 pm-10:19 pm

1 stop27h 54m

$386

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Wed 6/10

9:05 pm-5:56 pm

1 stop19h 51m

Decatur Arpt

Sun 6/14

7:05 pm-12:53 am

1 stop6h 48m

$426

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Thu 6/11

9:05 pm-5:56 pm

1 stop19h 51m

Decatur Arpt

Sun 6/14

7:05 pm-12:53 am

1 stop6h 48m

$438
Quickest round-trip

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Wed 6/3

9:05 pm-8:57 am

1 stop10h 52m

Decatur Arpt

Sun 6/7

7:05 pm-6:41 am

1 stop12h 36m

$448

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Thu 7/23

7:40 pm-8:57 am

1 stop12h 17m

Decatur Arpt

Sun 7/26

9:37 am-6:42 am

1 stop22h 05m

$472

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Wed 5/13

8:20 pm-8:58 am

1 stop11h 38m

Decatur Arpt

Sun 5/17

9:42 am-11:50 pm

1 stop15h 08m

$509

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Wed 4/8

5:50 pm-5:57 pm

2 stops23h 07m

Decatur Arpt

Sun 4/12

7:37 pm-12:58 am

1 stop6h 21m

$568

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Sorted by cheapest first

Best time to book a flight from Aurora to Decatur

Have a flexible travel schedule? Discover the best time to fly to Decatur from Aurora with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Aurora to Decatur

What is the cheapest month to book a flight from Aurora to Decatur, Illinois?

Currently, July is the cheapest month in which you can book a flight from Aurora to Decatur, Illinois (average of $46). Flying from Aurora to Decatur, Illinois in January is currently the most expensive (average of $252). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Aurora to Decatur. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Decatur from Aurora?

    Decatur Arpt (DEC) is the airport you will fly into if you book a flight from Aurora to Decatur. You should not have trouble finding flights to Decatur Arpt from Aurora; the airport handles an average of 0 inbound flights from Aurora per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Decatur airport from Aurora. It is only a 4.7 mi journey from Decatur Arpt (DEC) to Decatur’s city center.

  • How long is the flight from Aurora to Decatur, Illinois?

    Airlines like United Airlines fly from Aurora to Decatur, Illinois in about 10h 58m. The time it takes to get you to your destination can typically vary by up to . The distance between Aurora and Decatur, Illinois is about 837 mi.

  • Can I find deals for flights from Aurora to Decatur that include hotel bookings?

    Yes. In addition to deals on Aurora to Decatur flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Aurora to Decatur?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Aurora to Decatur.

  • Can I find deals for business class flights from Aurora to Decatur?

    Yes. Cheapflights offers flight deals from Aurora to Decatur by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Aurora to Decatur, Illinois?

    Currently, July is the cheapest month in which you can book a flight from Aurora to Decatur, Illinois (average of $46). Flying from Aurora to Decatur, Illinois in January is currently the most expensive (average of $252). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Decatur?

Book flights to Decatur if you plan to visit one of these locations
Mattoon
Effingham

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