Cheap Flights from Rockford (RFD) to Denver (DEN)

Featured airlines

American Airlines
United
Delta
Spirit Airlines
JetBlue Airways
Frontier Airlines
Air India
Hawaiian Airlines
Qatar Airways
    Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
Flight from Rockford to Denver (RFD - DEN) route information
Origin airport
Greater Rockford
Destination airport
Denver Intl.
Distance
826 mi

Rockford to Denver Flights

The cheapest times to fly from Rockford to Denver

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

The best time to book a flight from Rockford to Denver

Sunday is one of the best days to book for cheap flights from Rockford to Denver: 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 Denver

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 Denver in 2024. 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 Denver 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 Denver 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 RFD to DEN?
The lowest price advertised for a round-trip flight from RFD to Denver Airport is . But you better get moving. This figure is taken from fares quoted within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from RFD to DIA airport?
Each air carrier has its own terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.
How do I find cheap flights from RFD to DEN 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 RFD to Denver Airport flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from RFD to DIA airport?
Forget about a movie marathon on this flight — it’s just 839 mi from Rockford to Denver. Find your way to your seat, order some snacks and you’ll be there before long.
Which airlines fly direct from RFD to Denver Airport?
At present, no airlines offer flights directly from RFD to Denver Airport. You’ll have to book a flight with one or more stops. To score the best price and connections, lock in your fare ahead of time.
Are RFD to DIA airport flight tickets cheaper when they're purchased at the last minute?
Tickets from RFD to DEN are available up to a year before departure on Expedia. And although you may pick up a fantastic last-minute deal, it’s not something you should bank on. Also, booking your flights in advance means you’ll have more options — and you can avoid landing the dreaded middle seat! We’re always updating our fares to make sure you get the biggest bargains, so keep checking in for all the latest specials.
*Available to One Key members.