Cheap Flights from Tri-Cities to Denver International

Compare Tri-Cities to Denver International flight deals

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Flight deals from Tri-Cities to Denver International

Looking for a cheap last-minute deal or the best return flight from Tri-Cities Airport to Denver International Airport? If you want to travel next month, return fares start from $541. Find the lowest prices on one-way and return tickets right here.

Denver.$541 per passenger.Departing Sat, 22 Aug, returning Wed, 26 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Tri-Cities on Sat, 22 Aug, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Wed, 26 Aug, arriving in Tri-Cities.Price includes taxes and charges.From $541, select.

Denver.$560 per passenger.Departing Thu, 4 Mar, returning Wed, 10 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Tri-Cities on Thu, 4 Mar, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Wed, 10 Mar, arriving in Tri-Cities.Price includes taxes and charges.From $560, select.

Denver.$575 per passenger.Departing Fri, 25 Sep, returning Mon, 28 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Tri-Cities on Fri, 25 Sep, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Mon, 28 Sep, arriving in Tri-Cities.Price includes taxes and charges.From $575, select.

Denver.$576 per passenger.Departing Mon, 5 Oct, returning Mon, 19 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Tri-Cities on Mon, 5 Oct, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Mon, 19 Oct, arriving in Tri-Cities.Price includes taxes and charges.From $576, select.

Denver.$578 per passenger.Departing Thu, 30 Jul, returning Sun, 9 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Tri-Cities on Thu, 30 Jul, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Sun, 9 Aug, arriving in Tri-Cities.Price includes taxes and charges.From $578, select.

Denver.$637 per passenger.Departing Fri, 24 Jul, returning Sun, 26 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Tri-Cities on Fri, 24 Jul, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Sun, 26 Jul, arriving in Tri-Cities.Price includes taxes and charges.From $637, select.

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

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

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Tri-Cities to Denver International: Alternative routes

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

Denver International

30km from central Denver

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from $541

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Kingsport to Denver: Flight information

The things to know before you go.

Cheapest flight found	$541
Cheapest month to fly	August

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

How much are return flights from Tri-Cities to Denver International?

The best price we found for a return flight from Tri-Cities to Denver International is $541. 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.

Which airlines fly direct from Tri-Cities to Denver International?

Currently, there are no airlines that fly direct from Tri-Cities to Denver International. But we found flights with one or more stops from $541.

How many flights are there a week from Tri-Cities to Denver International?

As of July 2026, there are no flights flying from Tri-Cities to Denver International.

When is the cheapest time to fly from Tri-Cities to Denver International?

The cheapest month to fly from Tri-Cities to Denver International is usually August.

Which upcoming date is cheapest to fly from Tri-Cities Airport to Denver International Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Tri-Cities Airport to Denver International Airport on Saturday, 22 August 2026.

Can I get a direct flight from Tri-Cities Airport to Denver International Airport?

No airlines currently offer direct flights between Tri-Cities Airport and Denver International Airport. Most routes have one or more stops.

How can I find the best flight deal to Denver International?

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 Denver International 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.

When is the best time to book flights to Denver?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Denver is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Tri-Cities Airport to Denver International with?

Currently, Delta offers the cheapest flight tickets to Denver International.

Travelling from Tri-Cities Airport (TRI) to Denver International Airport (DEN): what you need to know

The timezone in Denver is UTC-7, which is two hours behind Kingsport.
For a smooth journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This way, you'll have plenty of time to catch your TRI to DEN flight.
During popular months like July, you'll want to get to the airport earlier than normal. Arrive two hours before domestic departures and four hours ahead of international flights when you fly during a high season in general.

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

The lowest price we've seen for a one-way Tri-Cities Airport to Denver International Airport flight is $567. A return ticket right now is $541. Depending on the availability and when you book, these fares could change.
It's often best to book early if you want to get cheap tickets from TRI to DEN. That's because airlines adjust prices based on demand, which tends to increase closer to the date of departure.
If you're flexible with your trip dates, use the 'Whole month' search function. It'll give you the cheapest price in each month when looking for your flight from Tri-Cities Airport to Denver International Airport.
You won't have to check every day to see if fares have dropped when you set up a Price Alert. We'll update you as soon as there's a better deal on cheap flights from TRI to DEN.
Choose your ideal arrival and departure times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Tri-Cities Airport to Denver International Airport.

Handy information about Tri-Cities Airport (TRI)

You'll find TRI at 2525 Tennessee 75.
81% of flights departing from Tri-Cities Airport arrive at their destination on schedule. With its strong on-time stats, delays are unlikely when setting off from TRI.
Tri-Cities Airport is about 18 kilometres from central Kingsport. If you're driving, ride-sharing or catching a taxi from the centre, it'll take 15 minutes or so to get there, depending on the traffic.
The trip on public transport will take about 35 minutes.
Get your journey off to a leisurely start by staying near TRI. Whether you've booked an early flight from Tri-Cities Airport to Denver International Airport or want to avoid feeling rushed, these hotels have you covered:

Arriving at Denver International Airport (DEN)

Consider staying at Baymont by Wyndham Denver International Airport after your Tri-Cities Airport to Denver International Airport flight. It's a quick drive from DEN and a great option if you want to get some rest right away.
Get on the fast track to adventure by picking up a Denver International Airport rental car. Grab a set of wheels from Routes Car Rentals, Dollar or Budget and experience the lesser-explored corners of Denver and beyond.
Lock in the best possible rate by booking your vehicle from Denver International Airport about one week before your trip.

When to fly to Denver International Airport (DEN)

It's time to plan your trip dates for your flight from Tri-Cities Airport to Denver International Airport. July is the most popular month to visit Denver. If you prefer a more laid-back vibe, go in January.
When booking your flight from Tri-Cities Airport to Denver International Airport, consider the type of weather you like. July is the warmest month in Denver, with the temperature ranging from 14ºC to 32ºC.
Search for cheap tickets from TRI to DEN in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between -9ºC and 7ºC on average.

Explore more of the United States

Denver has plenty to offer, but there are so many other corners of the United States waiting to be discovered. Around 105 kilometres south of Denver, a trip to Colorado Springs will keep you on the go. Start with popular sights like Garden of the Gods, Pikes Peak Region Attractions and Red Rock Canyon.
Aurora is another well-known destination in the United States and is around 13 kilometres east of Denver. No journey is complete without experiencing Plains Conservation Centre, DeLaney Homestead Historic District and Aircraft viewing.