Cheap Flights from Rockford (RFD) to Decatur (DEC)

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Find available prices by choosing your travel dates.
Flights from Rockford (RFD) to Decatur (DEC)
Origin airport
Greater Rockford
Destination airport
Decatur
Distance
164 mi

Rockford to Decatur Flights

The cheapest times to fly from Rockford 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 Rockford to Decatur are during the month of . You can find some of the cheapest flights from Rockford to Decatur with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Rockford to Decatur

Sunday is one of the best days to book for cheap flights from Rockford 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 Rockford 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 Rockford to Decatur in 2025. 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 Rockford 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 Rockford 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

Is it cheaper to buy a plane ticket from RFD to Decatur Airport last minute?
Booking your flight from RFD to Decatur Airport (DEC) at the last minute could save you dollars if you happen to find a bargain. However, airfares don’t typically get cheaper as the date of departure nears. If you choose to wait, flights could also be sold out or the best seats long gone. If you want to be on the safe side, book well in advance of the date you want to leave. Note that some of the biggest deals can be found up to a year in advance. If your preferred airline hasn’t released tickets yet, check back regularly as deals are updated on Expedia all the time.
What airports do you fly into for Decatur from Rockford?
From Rockford, you can journey to Decatur via Decatur Airport (DEC), University Of Illinois Urbana-Champaign Williard Airport (CMI) and Abraham Lincoln Capital Airport (SPI). It’s wise to check which hub is the best option for you before making your decision. If you decide on Decatur Airport (DEC), it’s roughly 4 mi east of the center of the city. Use the money you save when booking your journey with Expedia to tour the city’s well-known attractions, such as Millikin University and Hickory Point Mall.
Can I change the date of my flight from RFD to Decatur Airport (DEC)?
You can quickly make changes to your RFD to Decatur Airport (DEC) flight through the Expedia Trips portal. But before amending dates or times, look over the conditions in your itinerary to learn what you’re able to do and if any charges apply. Some airlines charge a change fee per person, in addition to any difference in fares. However, if you booked in the last 24 hours, you may be able to cancel for free and book new flights. You can also check out our Customer Service portal for further information and to chat with our Virtual Agent.

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