$125 Cheap Flights from Tri-Cities (TRI) to Denver (DEN)

View $125 flight on Sat, Jul 4, 2026Opens in a new window

Popular airlines from Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver Intl. Airport (DEN)

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

Prices were available within the past 7 days and start at $125 for one-way flights and $305 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Jul 3 - Thu, Jul 16
TRI
Tri-Cities
DEN
Denver
$305 Roundtrip, found 1 day ago
$305
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Jul 3 from Tri-Cities to Denver, returning Thu, Jul 16, priced at $305 found 1 day ago
American Airlines
Wed, Aug 12 - Sat, Aug 15
TRI
Tri-Cities
DEN
Denver
$309 Roundtrip, found 13 hours ago
$309
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Wed, Aug 12 from Tri-Cities to Denver, returning Sat, Aug 15, priced at $309 found 13 hours ago
Delta
Fri, Jul 3 - Thu, Jul 16
TRI
Tri-Cities
DEN
Denver
$319 Roundtrip, found 1 day ago
$319
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Jul 3 from Tri-Cities to Denver, returning Thu, Jul 16, priced at $319 found 1 day ago
United
Sat, Dec 5 - Mon, Dec 7
TRI
Tri-Cities
DEN
Denver
$319 Roundtrip, found 1 day ago
$319
Roundtrip
found 1 day ago
Select United flight, departing Sat, Dec 5 from Tri-Cities to Denver, returning Mon, Dec 7, priced at $319 found 1 day ago
United
Wed, Dec 23 - Thu, Dec 31
TRI
Tri-Cities
DEN
Denver
$324 Roundtrip, found 3 days ago
$324
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 23 from Tri-Cities to Denver, returning Thu, Dec 31, priced at $324 found 3 days ago
United
Sat, Dec 5 - Mon, Dec 7
TRI
Tri-Cities
DEN
Denver
$327 Roundtrip, found 1 day ago
$327
Roundtrip
found 1 day ago
Select United flight, departing Sat, Dec 5 from Tri-Cities to Denver, returning Mon, Dec 7, priced at $327 found 1 day ago
Delta
Fri, Aug 7 - Mon, Aug 10
TRI
Tri-Cities
DEN
Denver
$329 Roundtrip, found 5 hours ago
$329
Roundtrip
found 5 hours ago
Select Delta flight, departing Fri, Aug 7 from Tri-Cities to Denver, returning Mon, Aug 10, priced at $329 found 5 hours ago
American Airlines
Fri, Aug 14 - Sat, Aug 22
TRI
Tri-Cities
DEN
Denver
$335 Roundtrip, found 11 hours ago
$335
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Fri, Aug 14 from Tri-Cities to Denver, returning Sat, Aug 22, priced at $335 found 11 hours ago
Delta
Mon, Apr 19 - Mon, Apr 26
TRI
Tri-Cities
DEN
Denver
$339 Roundtrip, found 1 day ago
$339
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Apr 19 from Tri-Cities to Denver, returning Mon, Apr 26, priced at $339 found 1 day ago
Delta
Wed, Jul 15 - Wed, Jul 22
TRI
Tri-Cities
DEN
Denver
$344 Roundtrip, found 2 days ago
$344
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Jul 15 from Tri-Cities to Denver, returning Wed, Jul 22, priced at $344 found 2 days ago

Alternative airports near Denver

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

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city center is 32 minutes. Flights from $561
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $561

What you need to know for your flight from Tri-Cities Regional to Denver Intl.

Tri-Cities (TRI) to Denver (DEN) at a glance

Explore a range of airlines providing flights from Tri-Cities Regional Airport (TRI) to Denver International Airport (DEN) on this domestic short-haul route. Evaluate options from full-service carriers to discover the itinerary that aligns with your budget, schedule, and travel plans as you delve into Denver's renowned attractions and neighborhoods. Here, you'll find essential details for your journey from TRI to DEN.

  • Fastest flight duration: around 4h 45m in-flight, plus roughly 1h 30m layover with one stop
  • Route distance: roughly 1,200 miles (1,930 km)
  • Flights per week: around 9 departures on average
  • Typical fares (one-way): economy tickets often range from $135–$490, depending on seasonality and how far ahead you book

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

Recent traveler bookings reveal the top airlines flying from Tri-Cities to Denver, favored for their one-stop service. Popular layover options include Charlotte-Douglas International Airport (CLT) with a layover of about 1 hour and 30 minutes, Hartsfield-Jackson Atlanta International Airport (ATL) also around 1 hour and 30 minutes, and Dallas-Fort Worth International Airport (DFW) with a slightly longer layover of approximately 1 hour and 45 minutes. This variety allows you to customize your itinerary based on price, total travel time, and cabin class.

  • American Airlines: This full-service airline provides one-stop connections, with one-way ticket prices generally between $135 and $445. It dominates the route with around 62% of departures. Passengers can expect an in-flight duration of 4 hours and 45 minutes, leading to a total travel time of approximately 6 hours and 15 minutes, including layover.
  • Delta: Another full-service option, Delta also offers one-stop service, with one-way fares typically ranging from $155 to $560. It represents about 38% of the departures on this route. Travelers will experience a flight time of 4 hours and 45 minutes, with the complete journey taking around 6 hours and 15 minutes, factoring in the layover.

Travelers have the option to upgrade their flight from Tri-Cities to Denver, with Delta providing first-class service on this route.

Best time to fly from Tri-Cities (TRI) to Denver (DEN)

The most popular months for travelers flying from Tri-Cities to Denver are February, April, and May, when peak temperatures in Denver reach up to 54°F in May. If you prefer quieter travel, consider July, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 72.1°F. For better deals, August usually offers the lowest average one-way fare around $236. Flight availability peaks in September, with approximately 10 flights per week, making it easier to find convenient departure times.

  • Cheapest time to fly: August usually offers good deals with average one-way fare around $236, roughly 11% cheaper than the yearly average.
  • More budget-friendly months to fly: February, April, and March typically offer average one-way fares roughly ranging from $237 to $249.
  • Most flight options: September has the highest number of flights from Tri-Cities to Denver, with approximately 10 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January28.4°F (-2.0°C)Average9$250
February28.6°F (-1.9°C)Moderately High8$237
March38.5°F (3.6°C)Average8$249
April45.3°F (7.4°C)Moderately High9$244
May54.0°F (12.2°C)Moderately High9$251
June66.9°F (19.4°C)Average8$301
July72.1°F (22.3°C)Moderately Low8$267
August71.2°F (21.8°C)Average8$236
September65.1°F (18.4°C)Average10$281
October50.2°F (10.1°C)Average9$270
November38.5°F (3.6°C)Moderately Low8$306
December28.9°F (-1.7°C)Moderately Low8$315

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from Tri-Cities (TRI) to Denver (DEN)

  • Tri-Cities to Colorado Springs (TRI-COS): Located approximately 73 miles from Denver International Airport (DEN), Colorado Springs Airport (COS) offers convenient travel options. One-way economy tickets for this route generally range from $150 to $375, varying based on the season and when you book. Flights typically feature one-stop services, with common layover points including Dallas-Fort Worth International Airport (DFW) and Hartsfield-Jackson Atlanta International Airport (ATL). Major airlines operating on this route comprise American Airlines and Delta, with first-class service also available.
  • Asheville to Denver (AVL-DEN): Asheville Regional Airport (AVL) lies about 72 miles from Tri-Cities Regional Airport (TRI). Travelers can expect one-way economy fares for this route to fall between $130 and $490, influenced by the season and booking timing. This route provides both non-stop and one-stop flight options, with popular layovers at Charlotte-Douglas International Airport (CLT) and Hartsfield-Jackson Atlanta International Airport (ATL). Leading airlines for this journey include United and American Airlines, and first-class service is offered as well.

How to find the best prices for flights from Tri-Cities (TRI) to Denver (DEN)

Getting some of the best deals on flights from Tri-Cities to Denver is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually available when booking at least two months in advance, although most travelers tend to book between two to eight weeks ahead. Evening departures from 6 PM to midnight often offer lower prices, while morning flights from 5 AM to noon are the most popular. Additionally, flying on Saturday generally provides cheaper rates, while Thursday is the most common travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Denver International Airport from Tri-Cities Regional Airport

Denver welcomes travelers from Tri-Cities with a range of transport options based on price, convenience, and proximity. Here's how to reach Denver efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Denver, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Denver International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Denver International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Denver International Airport, Jeppesen Terminal Station, a metro station, is located about 0.1 miles away on foot, providing convenient access to local transit options.

Frequently asked questions

How much does a flight from Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.) cost?
You can find cheap one-way flights from $125 and cheap return flights from $305 Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.) with Expedia. One-way flights usually range from $245 to $851, and return flights typically cost between $421 and $1561. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.)?
April is the cheapest month to fly from Tri-Cities (TRI) to Denver (DEN), with average round-trip fares around $367. This price is about 19% lower than the average throughout the year, as April often has lower travel demand. Other economical months to consider are January and August.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.)?
Enter TRI to DEN and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.)?
American Airlines is one of the cheapest airlines offering connecting flights from Tri-Cities Regional (TRI) to Denver Intl. (DEN) with a layover in Charlotte-Douglas Intl. (CLT), starting from around $713 for a round-trip ticket. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.)?
To find a cheap flight from Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.)?
When flying from Tri-Cities (TRI) to Denver (DEN), consider traveling in January or April. January offers a return flight at about $367, while April is also a popular month for travelers. These months strike a good balance between price and flight options, making them ideal for your trip.*Prices based on flights available on Expedia in the last year.
What is the earliest flight from Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.)?
The earliest flight from Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.) typically departs at around 5:00 AM, operated by American Airlines. This service is seasonal and runs in November. An early flight can help you make the most of your time in Denver. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.)?
The most popular departure times for flights from Tri-Cities, TN (TRI) to Denver, CO (DEN) are in the early morning, from 6am to 9am. About 32% of passengers prefer this time window. Many major carriers, including Delta and American Airlines, operate flights during this window. This timing is ideal for travelers looking to arrive in Denver early and make the most of their day.
How long does it take to fly from Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.)?
Flights from TRI to DEN with one stop typically take around 6 hours 20 minutes, covering approximately 1,228 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.)?
First class seats are offered on the TRI to DEN route with American Airlines and Delta Air Lines.
How do I earn miles on a Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.) flight with Expedia?
It's easy to earn miles on a Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Denver from Tri-Cities Regional (TRI)?
From Tri-Cities Regional (TRI), you can fly into Denver Intl. (DEN) to reach Denver. Some flights may connect through major hubs like Hartsfield-Jackson Atlanta Intl. (ATL), Charlotte-Douglas Intl. (CLT), Dallas-Fort Worth Intl. (DFW) before reaching Denver. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.) at the last minute?
Typically, booking a last minute flight from Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.) flight and hotel package?
Securing a Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.) Denver Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.)?
If you booked your Tri-Cities, TN (TRI-Tri-Cities Regional) to Denver, CO (DEN-Denver Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Tri-Cities Regional
Destination airport
Denver Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$304
Distance
1228 mi

Book with confidence

Tri-Cities to Denver Flights

The cheapest times to fly from Tri-Cities to Denver

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

 

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

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

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 Tri-Cities to Denver in 2026. You can also book with separate airlines for your outbound and return journeys, from $125 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 Tri-Cities to Denver 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 Tri-Cities to Denver 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.

 

Tri-Cities to Denver Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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