$128 Cheap Flights from Rockford (RFD) to Knoxville (TYS)

View $128 flight on Thu, Dec 11, 2025Opens in a new window

Popular airlines from Rockford, IL (RFD-Greater Rockford) to McGhee Tyson Airport (TYS)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Rockford to Knoxville (RFD-TYS)

Prices were available within the past 7 days and start at $128 for one-way flights and $188 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Dec 11 - Tue, Dec 16
RFD
Rockford
TYS
Knoxville
$188 Roundtrip, just found
$188
Roundtrip
just found
Select American Airlines flight, departing Thu, Dec 11 from Rockford to Knoxville, returning Tue, Dec 16, priced at $188 just found
American Airlines
Sat, Nov 15 - Tue, Nov 18
RFD
Rockford
TYS
Knoxville
$193 Roundtrip, just found
$193
Roundtrip
just found
Select American Airlines flight, departing Sat, Nov 15 from Rockford to Knoxville, returning Tue, Nov 18, priced at $193 just found
American Airlines
Wed, Nov 12 - Sat, Nov 15
RFD
Rockford
TYS
Knoxville
$198 Roundtrip, found 1 day ago
$198
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Nov 12 from Rockford to Knoxville, returning Sat, Nov 15, priced at $198 found 1 day ago
American Airlines
Sun, Feb 15 - Sat, Feb 21
RFD
Rockford
TYS
Knoxville
$198 Roundtrip, found 5 days ago
$198
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun, Feb 15 from Rockford to Knoxville, returning Sat, Feb 21, priced at $198 found 5 days ago
American Airlines
Sat, Nov 15 - Tue, Nov 18
RFD
Rockford
TYS
Knoxville
$203 Roundtrip, just found
$203
Roundtrip
just found
Select American Airlines flight, departing Sat, Nov 15 from Rockford to Knoxville, returning Tue, Nov 18, priced at $203 just found
American Airlines
Sat, Jan 10 - Mon, Jan 12
RFD
Rockford
TYS
Knoxville
$213 Roundtrip, found 6 hours ago
$213
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Sat, Jan 10 from Rockford to Knoxville, returning Mon, Jan 12, priced at $213 found 6 hours ago
American Airlines
Sun, Feb 15 - Sat, Feb 21
RFD
Rockford
TYS
Knoxville
$218 Roundtrip, found 5 days ago
$218
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun, Feb 15 from Rockford to Knoxville, returning Sat, Feb 21, priced at $218 found 5 days ago
American Airlines
Thu, Jan 1 - Mon, Jan 5
RFD
Rockford
TYS
Knoxville
$222 Roundtrip, found 1 hour ago
$222
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Thu, Jan 1 from Rockford to Knoxville, returning Mon, Jan 5, priced at $222 found 1 hour ago
American Airlines
Wed, Nov 5 - Wed, Nov 12
RFD
Rockford
TYS
Knoxville
$223 Roundtrip, found 5 days ago
$223
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Nov 5 from Rockford to Knoxville, returning Wed, Nov 12, priced at $223 found 5 days ago
American Airlines
Sat, Nov 8 - Sat, Nov 15
RFD
Rockford
TYS
Knoxville
$228 Roundtrip, found 17 hours ago
$228
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Sat, Nov 8 from Rockford to Knoxville, returning Sat, Nov 15, priced at $228 found 17 hours ago

Alternative airports near Knoxville

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to McGhee Tyson TYS. Cheapest and Closest option available. Average driving time to city center is 22 minutes. Flights from $193
TYS
McGhee Tyson
CheapestClosest
Average driving time to city center22 min
Flights from $193

Frequently asked questions

How much does a flight from Rockford, IL (RFD-Greater Rockford) to McGhee Tyson Airport (TYS) cost?
Get a cheap one-way flight from $128 or cheap return flight from $188 from Rockford, IL (RFD-Greater Rockford) to McGhee Tyson Airport (TYS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Rockford, IL (RFD-Greater Rockford) to McGhee Tyson Airport (TYS)?
Planning your getaway for December may help you find better deals, as it's the cheapest month for flights between RFD and TYS. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from Rockford, IL (RFD-Greater Rockford) to McGhee Tyson Airport (TYS)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from RFD to TYS. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from Rockford, IL (RFD-Greater Rockford) to McGhee Tyson Airport (TYS)?
You'll need to hop on a flight with a layover if you're traveling from Rockford, IL (RFD-Greater Rockford) to McGhee Tyson Airport (TYS). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from RFD to TYS?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary depending on a number of factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Rockford, IL (RFD-Greater Rockford) to McGhee Tyson Airport (TYS)?
To avoid possible delays on the Rockford, IL (RFD-Greater Rockford) to McGhee Tyson Airport (TYS) route, fly before 3 PM. Departures after this time have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Rockford, IL (RFD-Greater Rockford) to McGhee Tyson Airport (TYS) last-minute?
Booking your flight from RFD to TYS just before your getaway is usually more expensive. However, if you're flexible with your travel times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a RFD to TYS flight and hotel package?
You can save money by securing a RFD to TYS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. After selecting your ideal accommodations and flights, you can add extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Rockford, IL (RFD-Greater Rockford) to McGhee Tyson Airport (TYS)?
Typically, it's possible to cancel or reschedule your RFD to TYS flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Greater Rockford
Destination airport
McGhee Tyson
Airlines serving
American Airlines
Roundtrip price
$187
Distance
519 mi

Book with confidence

Rockford to Knoxville Flights

The cheapest times to fly from Rockford to Knoxville

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

 

The best time to book a flight from Rockford to Knoxville

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

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 Knoxville in 2025. You can also book with separate airlines for your outbound and return journeys, from $128 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 Knoxville 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 Knoxville 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.

 

Rockford to Knoxville Flights

Explore a world of travel with Expedia

*Available to One Key members.