Cheap flight tickets from Denver to Tri-Cities

Compare Denver to Tri-Cities flight deals

Find the cheapest month or even day of the year to fly to Tri-Cities

Book the best Tri-Cities fare with no extra fees

Flight deals from Denver to Tri-Cities Airport

Looking for a cheap last-minute deal or the best return flight from Denver to Tri-Cities? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Denver to Tri-Cities

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver to Tri-Cities flights are currently cheapest in June.

Denver to Tri-Cities: Alternative routes

Compare routes from Denver to Kingsport below. You may find an airport to fly into that's cheaper, faster, or easier than Tri-Cities.

Denver to Kingsport: Flight information

The things to know before you go.
Cheapest flight foundRM1,456
Cheapest month to flyJune

Finding cheap flights from Denver to Tri-Cities: Frequently asked questions

The best price we found for a return flight from Denver to Tri-Cities is RM1,456. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Denver to Tri-Cities. But we found flights with one stop from RM1,456.
As of March 2026, there are no flights flying from Denver to Tri-Cities.
The cheapest month to fly from Denver to Tri-Cities is usually June.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Denver to Tri-Cities Airport on Wednesday, 10 June 2026.
No airlines currently offer direct flights between Denver and Tri-Cities Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Tri-Cities but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Kingsport is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Tri-Cities is Delta .

Flying from Denver to Tri-Cities Regional Airport (TRI): What you need to know

  • Denver's main airport is Denver International Airport (DEN). Check out your options for departing from here when searching for your flights from Denver to Tri-Cities Regional Airport (TRI).

  • The timezone in Kingsport is UTC-4, which is two hours ahead of Denver. Tri-Cities Regional Airport is located in Kingsport.

  • Your flight from Denver to TRI won't wait if you're running late, so get to the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • Heading away during a peak period like a bank holiday? Expect longer queues at check-in and security. To give yourself peace of mind, arrive up to four hours before international flights and two hours before domestic departures.

Airports in Denver

Denver International Airport (DEN)

  • DEN is about 40 kilometres from central Denver. If you're ride-sharing, driving or catching a cab from the centre, it'll take you 35 minutes or so to get there, depending on traffic conditions. If you're using public transport, expect the travel time to be around 1 hour 30 minutes.

  • In search of a convenient place to stay before your flight from Denver to Tri-Cities Regional Airport? Consider Baymont by Wyndham Denver International Airport. Get a good night's rest here before heading to Denver International Airport.

  • Denver International Airport earns top marks for on-time performance. 80.23% of flights that take off from DEN arrive at their destination on time.

  • DEN is located at 8500 Pena Boulevard.

About Tri-Cities Regional Airport (TRI)

How to find the cheapest flights from Denver to Tri-Cities Regional Airport (TRI)

  • The cheapest price we've found for a one-way ticket from Denver to Tri-Cities Regional Airport is RM1,128. For a return flight on this route, the best price is RM1,456. Depending on how early you book and the availability, these fares may change.

  • To pick up cheap flights from Denver to TRI, book early. Airlines typically offer the most competitive fares when tickets first go on sale.

  • The 'Whole month' search tool shows you the cheapest Denver to Tri-Cities Regional Airport tickets across each month. It's a great way to snap up a bargain if your travel plans aren't set in stone.

  • Never miss a deal on plane tickets from Denver to TRI by setting up a Price Alert. We'll send you an email or notification through the app when a new discounted fare appears.

  • Filters make it easier to dig up a deal for your flight from Denver to Tri-Cities Regional Airport. Choose the departure times, airlines and number of stops that match your plans. Then sort the results by 'Cheapest' to find the most affordable option fast.

The best time to fly from Denver to Tri-Cities Regional Airport (TRI)

  • July is when most people book flights from Denver to Tri-Cities Regional Airport (TRI). Plan your visit to Kingsport in February for a more low-key escape.

  • When booking your Denver to TRI plane ticket, consider the kind of weather forecast you're hoping for. July is the warmest month in Kingsport, with temperatures ranging from 16ºC (61ºF) to 31ºC (88ºF).

  • January has temperatures of between -7ºC (19ºF) and 10ºC (50ºF). Look for cheap tickets from Denver to Tri-Cities Regional Airport around that time if you want to travel when it's cooler.

More about Kingsport

  • After booking your flight from Denver to Tri-Cities Regional Airport, find a hotel that offers a good mix of location and comfort. Make one of these options your base for exploring Kingsport:

  • There are so many things to explore in this city, it can be difficult to know where to begin. Foot Bridge - Lakeside Trail, Mountain Music Museum and Allandale Mansion are highlights which should be on any good Kingsport itinerary.

Explore more of the United States

  • You've seen Kingsport, now it's time to discover other corners of the United States. Travel about 193 kilometres south-east to Charlotte to check off its popular sights. From Bechtler Museum of Modern Art to Discovery Place and NASCAR Hall of Fame, you've got a jam-packed schedule ahead.

  • Your trip through the United States wouldn't feel complete without exploring Ironville. Hoods creek cemetery is a highlight in this destination, which is about 225 kilometres north of Kingsport.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.