Cheap Flights from Singapore (SIN) to Decatur (DEC)

Popular airlines from Singapore Changi Airport (SIN) to Decatur, IL (DEC)

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Flights from Singapore (SIN) to Decatur (DEC)
Origin airport
Changi
Destination airport
Decatur
Distance
9476 mi

Singapore to Decatur Flights

The cheapest times to fly from Singapore to Decatur

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Singapore to Decatur are during the month of . You can find some of the cheapest flights from Singapore to Decatur with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Singapore to Decatur

Sunday is one of the best days to book for cheap flights from Singapore to Decatur: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Singapore to Decatur

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Singapore to Decatur in 2026. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Singapore to Decatur flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Singapore to Decatur airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much is a flight from SIN to Decatur Airport (DEC)?
If you're planning on traveling from Singapore Airport to DEC, round-trip journeys start from . This figure is based on airfares advertised within the last 7 days on Expedia for flights departing within the next year, so don't delay. Book now and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Singapore Airport to Decatur Airport (DEC)?
The majority of flights can be canceled online, but every airline has its own set of terms and conditions. If you do decide to cancel your flight, check out our Customer Service Portal and follow the instructions.
How do I find cheap flights from SIN to Decatur Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Singapore Airport to DEC flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Singapore Airport to Decatur Airport (DEC)?
The distance is around 9509 mi. Travel pillow? Check. Toothbrush? Double check. You'll need to pack all the essentials for this long-haul Singapore to Decatur flight.
Which airlines fly direct from Changi Airport to DEC?
You won't find any airlines flying directly between Singapore Airport and DEC, so be prepared to make at least one stop on your journey. A layover, whether short or long, can be a good way to break up a trip!
Are SIN to Decatur Airport flight tickets cheaper when they're purchased at the last minute?
Flight prices are always on the move, so not always. While last-minute deals between Singapore Airport and DEC are of course possible, it also makes sense to keep a close eye on prices well before you fly. In fact, some air carriers publicize their prices up to 12 months ahead of the departure date. Expedia is constantly updating the best bargains around, so keep checking and be ready to book when fare prices drop.
*Available to One Key members.