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Cheap Flights from Tri-Cities (TRI) to Denver International (DEN)

Compare Tri-Cities to Denver International flight deals

Find the cheapest month or even day of the year to fly to Denver International

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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 to Denver International? Find the lowest prices on one-way and return tickets right here.
Denver.£201 per passenger.Departing Fri, 2 Oct, returning Sun, 4 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Tri-Cities on Fri, 2 Oct, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Sun, 4 Oct, arriving in Tri-Cities.Price includes taxes and charges.From £201, select.
Denver.£201 per passenger.Departing Mon, 2 Mar, returning Tue, 10 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Tri-Cities on Mon, 2 Mar, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Tue, 10 Mar, arriving in Tri-Cities.Price includes taxes and charges.From £201, select.
Denver.£216 per passenger.Departing Fri, 29 May, returning Mon, 1 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Tri-Cities on Fri, 29 May, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Mon, 1 Jun, arriving in Tri-Cities.Price includes taxes and charges.From £216, select.
Denver.£229 per passenger.Departing Thu, 17 Sep, returning Sun, 20 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Tri-Cities on Thu, 17 Sep, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Sun, 20 Sep, arriving in Tri-Cities.Price includes taxes and charges.From £229, select.
Denver.£251 per passenger.Departing Sun, 15 Feb, returning Sat, 21 Feb.Return flight with Allegiant Air and Frontier Airlines.Outbound indirect flight with Allegiant Air, departs from Tri-Cities on Sun, 15 Feb, arriving in Denver International.Inbound indirect flight with Frontier Airlines, departs from Denver International on Sat, 21 Feb, arriving in Tri-Cities.Price includes taxes and charges.From £251, select.
Denver.£259 per passenger.Departing Tue, 21 Apr, returning Sun, 26 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Tri-Cities on Tue, 21 Apr, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Sun, 26 Apr, arriving in Tri-Cities.Price includes taxes and charges.From £259, select.
Denver.£392 per passenger.Departing Thu, 21 May, returning Thu, 28 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Tri-Cities on Thu, 21 May, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Thu, 28 May, arriving in Tri-Cities.Price includes taxes and charges.From £392, select.
Denver.£512 per passenger.Departing Fri, 23 Jan, returning Mon, 26 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Tri-Cities on Fri, 23 Jan, arriving in Denver International.Inbound indirect flight with Delta, departs from Denver International on Mon, 26 Jan, arriving in Tri-Cities.Price includes taxes and charges.From £512, select.

Find the cheapest month to fly from Tri-Cities to Denver International from £98 one-way

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 March.
Jan
from £512
Feb
from £251
Mar
from £201
Apr
from £259
May
from £392
Jun
Find prices
Jul
Find prices
Aug
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Sep
from £229
Oct
from £201
Nov
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Dec
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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 Arapahoe Co

0 miles from central Denver
Closest
Search flights

Broomfield

14 miles from central Denver
Search flights

Denver International

19 miles from central Denver
Cheapest
from £201
Search flights

Northern Colorado Regional

49 miles from central Denver
Search flights

Kingsport to Denver: Flight information

The things to know before you go.
Cheapest flight found£201
Cheapest month to flyMarch

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

The best price we found for a return flight from Tri-Cities to Denver International is £201. 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 Tri-Cities to Denver International. But we found flights with one or more stops from £201.
As of January 2026, there are no flights flying from Tri-Cities to Denver International.
The cheapest month to fly from Tri-Cities to Denver International is usually March.
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 Monday, 2 March 2026.
No airlines currently offer direct flights between Tri-Cities Airport and Denver International 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 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.
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.
Currently, Delta offers the cheapest flight tickets to Denver International.

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

  • Denver's timezone is UTC-6, which makes Denver two hours behind Kingsport.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to board your TRI to DEN flight.

  • Be prepared for bigger queues during popular months like July. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a wise move.

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

  • The cheapest price we've found for a one-way Tri-Cities Regional Airport to Denver International Airport flight is £98. A round-trip fare right now is £201. Depending on the availability and when you book, these fares may change.

  • It's often best to book as early as possible if you're looking for cheap tickets from TRI to DEN. That's because airlines change prices based on demand, which tends to rise closer to departure.

  • Getting cheap flights from Tri-Cities Regional Airport to Denver International Airport is easy if you can be flexible with your trip dates. Use the 'Whole month' search tool to see the best prices across each month and score a great deal.

  • Spend less time searching for cheap flights from TRI to DEN by setting up a Price Alert. You'll get an email or push notification on the app when fares go down.

  • Pick your preferred departure and arrival times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Tri-Cities Regional Airport to Denver International Airport.

Handy information about Tri-Cities Regional Airport (TRI)

Arriving at Denver International Airport (DEN)

  • Consider staying at Baymont by Wyndham Denver International Airport after arriving from your Tri-Cities Regional Airport to Denver International Airport flight. It's a quick drive from DEN and a good option if you'd like to get some sleep right away.

  • Pick up a Denver International Airport rental car and explore Denver and beyond with your own set of wheels. Routes Car Rentals, Dollar and Budget are popular outlets to choose from here.

  • Reserving your ride from Denver International Airport around one week ahead can help you get the lowest rate.

Getting from Denver International Airport (DEN) to central Denver

  • The street address for DEN is 8500 Pena Boulevard.

  • Denver International Airport to central Denver has a drive time of about 35 minutes. It's approximately 25 miles away.

  • Getting there by public transport takes about 1 hour 30 minutes.

When to fly to Denver International Airport (DEN)

  • It's time to choose your trip dates for your flight from Tri-Cities Regional Airport to Denver International Airport. July is the busiest month to head to Denver. If you prefer a more low-key vibe, go in April.

  • Lock in your flight from Tri-Cities Regional Airport to Denver International Airport for July if you want to explore Denver during its warmest month. Expect temperatures of between 14ºC (57ºF) and 32ºC (90ºF).

  • Look for cheap tickets from TRI to DEN in January if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between -9ºC (16ºF) and 7ºC (45ºF) on average.

Explore more of United States

  • You've visited Denver, now it's time to explore more of United States. Journey about 65 miles south to Colorado Springs to tick off its top sights. From US Northern Command (USNORTHCOM) / North American Aerospace Defence Command (NORAD) Headquarters to Cheyenne Mountain Air Force Station and National Strength and Conditioning Association (NSCA), you'll have a packed itinerary ahead.

  • Aurora is another must-experience destination in United States and is around 8 miles east of Denver. No journey is complete without experiencing Magellan's Travel Solutions and Gear, The Fairways at Lowry and Retired Enlisted Association Inc.

Plan the rest of your trip from Kingsport to Denver

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