AUD/AU
Find cheap flights to Decatur, Illinois in 2025/2026 from $1,404 This is the cheapest return flight found to Decatur, Illinois from Australia on FlightsFinder on December 14th 2025 at 11:38. This offer may no longer be available. Click the offer to check live prices & dates of travel.
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Our Flight Finder compares the cheapest flights to Decatur, Illinois from the most established flight comparison sites.
Fly to Decatur, Illinois and visit sites like Scovill Zoo, Children's Museum of Illinois, Lake Decatur & Rock Springs Conservation Area.
1. Enter your search requirements for Decatur, Illinois
2. Compare the best Decatur, Illinois deals from top comparison engines
3. Book your Decatur, Illinois flight at the cheapest price
These economy flights were found on FlightsFinder from Australia to Decatur, Illinois in the last few days. Prices subject to availability.
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These economy flights were found on FlightsFinder from Australia to Decatur, Illinois in the last few days. Prices subject to availability.
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According to our data, January is on average the cheapest time to book flights to Decatur, Illinois.
You can get flights from $1,404 return.
According to our data, January is on average the most expensive time to book flights to Decatur, Illinois.
A return flight could set you back more than $1,404.
Situated along the picturesque banks of Lake Decatur, Decatur, Illinois boasts a charming blend of rich history, vibrant culture, and small-town warmth. This Midwestern gem captivates visitors with its thriving arts scene, diverse culinary offerings, and welcoming community spirit. Explore the city's historic downtown district, lined with beautifully preserved architecture and an array of boutique shops and eateries. Nature enthusiasts can revel in the abundance of outdoor recreational opportunities, from lush parks to scenic trails. Whether strolling along the waterfront or immersing oneself in local festivities, Decatur promises an unforgettable experience that embodies the heart of the American heartland.
A good price for a flight to Decatur is $1264 - $1544.
The popular airports near Decatur, Illinois, include Central Illinois Regional Airport at Bloomington-Normal, Abraham Lincoln Capital Airport in Springfield, and University of Illinois Willard Airport in Champaign.
The flight to Decatur, Illinois (DEC) is roughly 20 hours 50 minutes and 9,151 miles (14,728 kilometres) from Sydney, Australia - Kingsford Smith Airport (SYD).
The best way is to compare flights to Decatur, Illinois from leading comparison sites using our search engine dashboard.
We have currently found no direct flights to Decatur, Illinois.
Here is the average weather forecast in Decatur, Illinois by month:
• Jan: 1°C
• Feb: 4°C
• Mar: 11°C
• Apr: 19°C
• May: 25°C
• Jun: 29°C
• Jul: 31°C
• Aug: 30°C
• Sep: 27°C
• Oct: 20°C
• Nov: 12°C
• Dec: 4°C
The Decatur Airport in Illinois is approximately 6 miles from the city center.
Typically, flights are cheapest to Decatur, Illinois 2 months before departure.
Studies show flights to Decatur, Illinois are typically cheaper on Tuesdays and Wednesdays.
-2.4 °C
Sun, 14 Dec 2025
Average Temperature
1°C
Jan
4°C
Feb
11°C
Mar
19°C
Apr
25°C
May
29°C
Jun
31°C
Jul
30°C
Aug
27°C
Sep
20°C
Oct
12°C
Nov
4°C
Dec
Sydney, Australia - Kingsford Smith Airport (SYD) to Decatur, Illinois (DEC)
Distance:
9,151 miles (14,728 kilometres)
Average flight time (direct 20 hours 50 minutes)
Brisbane, Australia - Brisbane International Airport (BNE) to Decatur, Illinois (DEC)
Distance:
8,836 miles (14,220 kilometres)
Average flight time (direct 20 hours 8 minutes)
Melbourne, Australia - All Airports (MEL) to Decatur, Illinois (DEC)
Distance:
9,579 miles (15,415 kilometres)
Average flight time (direct 21 hours 47 minutes)
Perth, Australia - Perth International Airport (PER) to Decatur, Illinois (DEC)
Distance:
10,945 miles (17,614 kilometres)
Average flight time (direct 24 hours 49 minutes)
Cairns, Australia - Cairns International Airport (CNS) to Decatur, Illinois (DEC)
Distance:
8,818 miles (14,192 kilometres)
Average flight time (direct 20 hours 5 minutes)
Adelaide, Australia - Adelaide International Airport (ADL) to Decatur, Illinois (DEC)
Distance:
9,839 miles (15,834 kilometres)
Average flight time (direct 22 hours 21 minutes)
Darwin, Australia - Darwin International Airport (DRW) to Decatur, Illinois (DEC)
Distance:
9,364 miles (15,070 kilometres)
Average flight time (direct 21 hours 18 minutes)
Gold Coast, Australia - Coolangatta Airport (OOL) to Decatur, Illinois (DEC)
Distance:
8,843 miles (14,231 kilometres)
Average flight time (direct 20 hours 9 minutes)
Townsville, Australia - Townsville International Airport (TSV) to Decatur, Illinois (DEC)
Distance:
8,863 miles (14,264 kilometres)
Average flight time (direct 20 hours 11 minutes)
Mount Isa, Australia - Mount Isa Airport (ISA) to Decatur, Illinois (DEC)
Distance:
9,303 miles (14,971 kilometres)
Average flight time (direct 21 hours 10 minutes)
Kununurra, Australia - Kununurra Airport (KNX) to Decatur, Illinois (DEC)
Distance:
9,631 miles (15,499 kilometres)
Average flight time (direct 21 hours 54 minutes)
Newcastle, Australia - Williamtown Metropolitan Area Airport (NTL) to Decatur, Illinois (DEC)
Distance:
9,082 miles (14,617 kilometres)
Average flight time (direct 20 hours 40 minutes)
Mackay, Australia - Mackay Airport (MKY) to Decatur, Illinois (DEC)
Distance:
8,812 miles (14,182 kilometres)
Average flight time (direct 20 hours 4 minutes)
Hobart, Australia - Hobart International Airport (HBA) to Decatur, Illinois (DEC)
Distance:
9,556 miles (15,378 kilometres)
Average flight time (direct 21 hours 44 minutes)
Launceston, Australia - Launceston Airport (LST) to Decatur, Illinois (DEC)
Distance:
9,545 miles (15,361 kilometres)
Average flight time (direct 21 hours 42 minutes)
Cloncurry, Australia - Cloncurry Airport (CNJ) to Decatur, Illinois (DEC)
Distance:
9,250 miles (14,886 kilometres)
Average flight time (direct 21 hours 3 minutes)
Paraburdoo, Australia - Paraburdoo Airport (PBO) to Decatur, Illinois (DEC)
Distance:
10,500 miles (16,898 kilometres)
Average flight time (direct 23 hours 50 minutes)
Karratha, Australia - Karratha Airport (KTA) to Decatur, Illinois (DEC)
Distance:
10,425 miles (16,777 kilometres)
Average flight time (direct 23 hours 39 minutes)
Kalgoorlie-Boulder, Australia - Kalgoorlie-Boulder Airport (KGI) to Decatur, Illinois (DEC)
Distance:
10,622 miles (17,095 kilometres)
Average flight time (direct 24 hours 6 minutes)
Learmonth, Australia - Learmonth Airport (LEA) to Decatur, Illinois (DEC)
Distance:
10,619 miles (17,090 kilometres)
Average flight time (direct 24 hours 5 minutes)
Port Macquarie, Australia - Port Macquarie Airport (PQQ) to Decatur, Illinois (DEC)
Distance:
8,986 miles (14,462 kilometres)
Average flight time (direct 20 hours 28 minutes)
Port Hedland, Australia - Port Hedland International Airport (PHE) to Decatur, Illinois (DEC)
Distance:
10,325 miles (16,617 kilometres)
Average flight time (direct 23 hours 26 minutes)
Canberra, Australia - Canberra Airport (CBR) to Decatur, Illinois (DEC)
Distance:
9,293 miles (14,956 kilometres)
Average flight time (direct 21 hours 9 minutes)
From Melbourne (MEL), Australia to Decatur, United States (DEC): $1,404
Depart: 28 Jan 2026 · Return: 04 Feb 2026 Price found 14 Dec 2025, 11:38
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