$189 Cheap Flights from Raleigh (RDU) to Tri-Cities (TRI)

View $189 flight on Sat, Oct 11, 2025Opens in a new window

Popular airlines from Raleigh-Durham International Airport (RDU) to Tri-Cities, TN (TRI-Tri-Cities Regional)

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Cheap Flights from Raleigh to Tri-Cities (RDU-TRI)

Prices were available within the past 7 days and start at $189 for one-way flights and $307 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Oct 8 - Tue, Oct 14
RDU
Raleigh
TRI
Tri-Cities
$307 Roundtrip, found 9 hours ago
$307
Roundtrip
found 9 hours ago
Select Delta flight, departing Wed, Oct 8 from Raleigh to Tri-Cities, returning Tue, Oct 14, priced at $307 found 9 hours ago
American Airlines
Tue, Nov 25 - Tue, Dec 2
RDU
Raleigh
TRI
Tri-Cities
$312 Roundtrip, found 3 days ago
$312
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Nov 25 from Raleigh to Tri-Cities, returning Tue, Dec 2, priced at $312 found 3 days ago
Delta
Wed, Oct 8 - Thu, Oct 16
RDU
Raleigh
TRI
Tri-Cities
$317 Roundtrip, found 9 hours ago
$317
Roundtrip
found 9 hours ago
Select Delta flight, departing Wed, Oct 8 from Raleigh to Tri-Cities, returning Thu, Oct 16, priced at $317 found 9 hours ago
Delta
Sun, Oct 12 - Sat, Oct 18
RDU
Raleigh
TRI
Tri-Cities
$327 Roundtrip, found 9 hours ago
$327
Roundtrip
found 9 hours ago
Select Delta flight, departing Sun, Oct 12 from Raleigh to Tri-Cities, returning Sat, Oct 18, priced at $327 found 9 hours ago
Delta
Wed, Dec 24 - Wed, Dec 31
RDU
Raleigh
TRI
Tri-Cities
$337 Roundtrip, found 3 days ago
$337
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Dec 24 from Raleigh to Tri-Cities, returning Wed, Dec 31, priced at $337 found 3 days ago
American Airlines
Tue, Nov 25 - Tue, Dec 2
RDU
Raleigh
TRI
Tri-Cities
$342 Roundtrip, found 3 days ago
$342
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Nov 25 from Raleigh to Tri-Cities, returning Tue, Dec 2, priced at $342 found 3 days ago
Delta
Tue, Oct 7 - Tue, Oct 14
RDU
Raleigh
TRI
Tri-Cities
$347 Roundtrip, found 9 hours ago
$347
Roundtrip
found 9 hours ago
Select Delta flight, departing Tue, Oct 7 from Raleigh to Tri-Cities, returning Tue, Oct 14, priced at $347 found 9 hours ago
Delta
Sun, Dec 21 - Wed, Dec 31
RDU
Raleigh
TRI
Tri-Cities
$347 Roundtrip, found 3 days ago
$347
Roundtrip
found 3 days ago
Select Delta flight, departing Sun, Dec 21 from Raleigh to Tri-Cities, returning Wed, Dec 31, priced at $347 found 3 days ago
American Airlines
Thu, Oct 9 - Sat, Oct 11
RDU
Raleigh
TRI
Tri-Cities
$357 Roundtrip, found 9 hours ago
$357
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Thu, Oct 9 from Raleigh to Tri-Cities, returning Sat, Oct 11, priced at $357 found 9 hours ago
Delta
Wed, Dec 24 - Thu, Jan 1
RDU
Raleigh
TRI
Tri-Cities
$361 Roundtrip, found 3 days ago
$361
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Dec 24 from Raleigh to Tri-Cities, returning Thu, Jan 1, priced at $361 found 3 days ago

Alternative airports near Blountville

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

Select flight to Tri-Cities Regional TRI. Cheapest option available. Flights from $367
TRI
Tri-Cities Regional
Cheapest
Flights from $367
Flights from Raleigh (RDU) to Tri-Cities (TRI)
Origin airport
Raleigh - Durham Intl.
Destination airport
Tri-Cities Regional
Airlines serving
American Airlines, Delta
Roundtrip price
$306
Distance
206 mi

Raleigh to Tri-Cities Flights

The cheapest times to fly from Raleigh to Tri-Cities

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 Raleigh to Tri-Cities are during the month of October. You can find some of the cheapest flights from Raleigh to Tri-Cities with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Raleigh to Tri-Cities

Sunday is one of the best days to book for cheap flights from Raleigh to Tri-Cities: 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 Raleigh to Tri-Cities

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 Raleigh to Tri-Cities in 2025. You can also book with separate airlines for your outbound and return journeys, from $189 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 Raleigh to Tri-Cities 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 Raleigh to Tri-Cities 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 does a flight from Raleigh - Durham Intl. Airport (RDU) to Tri-Cities Regional Airport (TRI) cost?
Lock in a cheap one-way flight from $189 or cheap return flight from $307 from Raleigh - Durham Intl. Airport (RDU) to Tri-Cities Regional Airport (TRI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Raleigh - Durham Intl. Airport (RDU) to Tri-Cities Regional Airport (TRI)?
Flying in October may help you find better deals, as it's the cheapest month for flights between RDU and TRI. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from Raleigh - Durham Intl. Airport (RDU) to Tri-Cities Regional Airport (TRI)?
To find the cheapest airline flying from RDU to TRI, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Raleigh - Durham Intl. Airport (RDU) to Tri-Cities Regional Airport (TRI)?
Direct flights from Raleigh - Durham Intl. Airport (RDU) to Tri-Cities Regional Airport (TRI) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from RDU to TRI?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can change based on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Raleigh - Durham Intl. Airport (RDU) to Tri-Cities Regional Airport (TRI)?
To arrive at Tri-Cities Regional Airport (TRI) on schedule, choose a flight that leaves from Raleigh - Durham Intl. Airport (RDU) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Raleigh - Durham Intl. Airport (RDU) to Tri-Cities Regional Airport (TRI) last-minute?
Booking your plane ticket from RDU to TRI right before your trip is generally more expensive. However, if there's some wiggle room with your schedule, you could score a cheap last-minute fare.
Is it cheaper to book a RDU to TRI flight and hotel package?
Booking a RDU to TRI flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Pick from our impressive range of accommodations and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Raleigh - Durham Intl. Airport (RDU) to Tri-Cities Regional Airport (TRI)?
Typically, you're able to reschedule or cancel your RDU to TRI flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like further details, go to our Customer Service portal.

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*Available to One Key members.