GBP/GB
Find cheap flights to Decatur, Illinois in 2026/2027 from £814 This is the cheapest return flight found to Decatur, Illinois from UK on FlightsFinder on September 5th 2026 at 16:42. This offer may no longer be available. Click the offer to check live prices & dates of travel.
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.
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2. Compare the best Decatur, Illinois deals from top comparison engines
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These economy flights were found on FlightsFinder from UK to Decatur, Illinois in the last few days. Prices subject to availability.
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These economy flights were found on FlightsFinder from UK to Decatur, Illinois in the last few days. Prices subject to availability.
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According to our data, October is on average the cheapest time to book flights to Decatur, Illinois.
You can get flights from £814 return.
According to our data, November is on average the most expensive time to book flights to Decatur, Illinois.
A return flight could set you back more than £1,312.
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 £733 - £895.
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 9 hours 34 minutes and 4,082 miles (6,570 kilometres) from London, England UK - Heathrow International Airport (LHR).
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.
22.6 °C
Sat, 12 Sep 2026
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
London, England UK - Heathrow International Airport (LHR) to Decatur, Illinois (DEC)
Distance:
4,082 miles (6,570 kilometres)
Average flight time (direct 9 hours 34 minutes)
London, England UK - London Gatwick International Airport (LGW) to Decatur, Illinois (DEC)
Distance:
4,103 miles (6,603 kilometres)
Average flight time (direct 9 hours 37 minutes)
Manchester, England UK - Manchester Airport (MAN) to Decatur, Illinois (DEC)
Distance:
3,958 miles (6,369 kilometres)
Average flight time (direct 9 hours 17 minutes)
London, England UK - London North East - Stansted International Airport (STN) to Decatur, Illinois (DEC)
Distance:
4,096 miles (6,592 kilometres)
Average flight time (direct 9 hours 36 minutes)
London, England UK - London North, Luton International Airport (LTN) to Decatur, Illinois (DEC)
Distance:
4,074 miles (6,556 kilometres)
Average flight time (direct 9 hours 33 minutes)
Edinburgh, Scotland UK - Airport (EDI) to Decatur, Illinois (DEC)
Distance:
3,847 miles (6,190 kilometres)
Average flight time (direct 9 hours 2 minutes)
Birmingham, England UK - Birmingham Airport (BHX) to Decatur, Illinois (DEC)
Distance:
4,004 miles (6,443 kilometres)
Average flight time (direct 9 hours 23 minutes)
Bristol, UK - Bristol Airport (BRS) to Decatur, Illinois (DEC)
Distance:
3,998 miles (6,433 kilometres)
Average flight time (direct 9 hours 23 minutes)
Glasgow, Scotland UK - Glasgow International Airport (GLA) to Decatur, Illinois (DEC)
Distance:
3,810 miles (6,132 kilometres)
Average flight time (direct 8 hours 58 minutes)
Belfast, Ireland UK - Belfast International Airport (BFS) to Decatur, Illinois (DEC)
Distance:
3,775 miles (6,076 kilometres)
Average flight time (direct 8 hours 53 minutes)
Newcastle, UK - Newcastle International Airport (NCL) to Decatur, Illinois (DEC)
Distance:
3,932 miles (6,327 kilometres)
Average flight time (direct 9 hours 14 minutes)
London, England UK - Royal Docks - London City Airport (LCY) to Decatur, Illinois (DEC)
Distance:
4,101 miles (6,600 kilometres)
Average flight time (direct 9 hours 36 minutes)
Liverpool, UK - John Lennon Airport (LPL) to Decatur, Illinois (DEC)
Distance:
3,936 miles (6,335 kilometres)
Average flight time (direct 9 hours 14 minutes)
Nottingham, UK - East Midlands Airport (EMA) to Decatur, Illinois (DEC)
Distance:
4,008 miles (6,451 kilometres)
Average flight time (direct 9 hours 24 minutes)
Leeds, UK - Leeds/Bradford Airport (LBA) to Decatur, Illinois (DEC)
Distance:
3,966 miles (6,382 kilometres)
Average flight time (direct 9 hours 18 minutes)
Aberdeen, Scotland UK - Dyce Airport (ABZ) to Decatur, Illinois (DEC)
Distance:
3,856 miles (6,205 kilometres)
Average flight time (direct 9 hours 4 minutes)
Belfast, Ireland UK - George Best City Apt Airport (BHD) to Decatur, Illinois (DEC)
Distance:
3,789 miles (6,098 kilometres)
Average flight time (direct 8 hours 55 minutes)
London, England UK - London South, Southend Airport (SEN) to Decatur, Illinois (DEC)
Distance:
4,124 miles (6,636 kilometres)
Average flight time (direct 9 hours 39 minutes)
Southampton, UK - Southampton Airport (SOU) to Decatur, Illinois (DEC)
Distance:
4,064 miles (6,540 kilometres)
Average flight time (direct 9 hours 31 minutes)
Jersey, UK - Jersey Airport (JER) to Decatur, Illinois (DEC)
Distance:
4,084 miles (6,573 kilometres)
Average flight time (direct 9 hours 34 minutes)
Cardiff, Wales - UK - Cardiff Airport (CWL) to Decatur, Illinois (DEC)
Distance:
3,973 miles (6,394 kilometres)
Average flight time (direct 9 hours 19 minutes)
Doncaster, UK - Sheffield/ Robin Hood Airport (DSA) to Decatur, Illinois (DEC)
Distance:
4,001 miles (6,439 kilometres)
Average flight time (direct 9 hours 23 minutes)
From London (LHR), UK to Decatur, United States (DEC): £814
Depart: 20 Oct 2026 · Return: 27 Oct 2026 Price found 05 Sep 2026, 16:42
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