$349 Cheap Flights from Denver (DEN) to Tri-Cities (TRI)
Popular airlines from Denver Intl. Airport (DEN) to Tri-Cities, TN (TRI-Tri-Cities Regional)
American AirlinesAmerican Airlines
DeltaDelta
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Cheap Flights from Denver to Tri-Cities (DEN-TRI)
Find the cheapest month to fly from Denver (DEN) to Tri-Cities (TRI)
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Denver (DEN) to Tri-Cities (TRI) at a glance
Travel between Denver (DEN) and Tri-Cities (TRI) with a selection of airlines on this domestic short-haul route. Discover cheap flights from Denver and compare flight prices from various carriers to find the best itinerary that suits your budget and travel schedule. Whether you’re eager to explore the renowned sights and neighborhoods of Tri-Cities or simply looking for the most convenient option, you’ll find all the essential details for flights from Denver International Airport (DEN) to Tri-Cities Regional Airport (TRI).
- Fastest flight duration: around 4h 15m in-flight, plus roughly 1h 15m 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–$470, depending on seasonality and how far ahead you book
Flights from Denver International Airport (DEN) to Tri-Cities Regional Airport (TRI)
Based on the latest traveler bookings, here are the top airlines favored for one-stop flights from Denver to Tri-Cities. Popular layover options include Charlotte-Douglas International Airport (CLT) with about a 1-hour and 15-minute layover, Hartsfield-Jackson Atlanta International Airport (ATL) with a 1-hour and 45-minute layover, and Dallas-Fort Worth International Airport (DFW) also offering a 1-hour and 15-minute layover. These choices allow you to balance price, total travel time, and cabin class while creating the ideal itinerary.
- American Airlines: This full-service airline provides one-stop flights, commanding about 70% of departures on this route. One-way ticket prices generally fall between $135 and $485, with an in-flight duration of 4 hours and 15 minutes, leading to a total travel time of approximately 5 hours and 45 minutes, including layover.
- Delta: Another full-service option, Delta accounts for around 30% of departures for this journey, offering one-stop flights with one-way fares typically ranging from $155 to $540. The in-flight experience lasts about 4 hours and 15 minutes, resulting in a total journey time of roughly 5 hours and 45 minutes, factoring in the layover.
Travelers flying from Denver to Tri-Cities can opt for an upgrade, as Delta provides first-class service on this route for a more comfortable experience.
Best time to fly from Denver (DEN) to Tri-Cities (TRI)
The most popular months for travelers flying from Denver to Tri-Cities are February, March, and April, when peak temperatures in Tri-Cities reach up to 55°F in April. If you prefer quieter travel, consider August, the least busy time to visit with temperatures around 73°F and typically the lowest average one-way fare (around $228). Flight availability peaks in December, with approximately 12 flights per week, making it easier to find convenient departure times. January has the fewest flights, with approximately 7 flights per week.
- Cheapest time to fly: August usually offers good deals with average one-way fare around $228, roughly 16% cheaper than the yearly average.
- More budget-friendly months to fly: January, July, and April typically offer average one-way fares roughly ranging from $229 to $245.
- Most flight options: December has the highest number of flights from Denver to Tri-Cities, with approximately 12 flights per week, giving you more flexibility in scheduling your trip.
| Month | Temperature | Demand | Weekly Flights | Average one-way Fare |
| January | 34.9°F (1.6°C) | Average | 7 | $229 |
| February | 39.4°F (4.1°C) | High | 8 | $272 |
| March | 46.4°F (8.0°C) | High | 9 | $281 |
| April | 55.0°F (12.8°C) | High | 9 | $245 |
| May | 63.9°F (17.7°C) | Average | 9 | $301 |
| June | 71.1 °F (21.7°C) | Average | 10 | $248 |
| July | 74.3°F (23.5°C) | Low | 8 | $238 |
| August | 73.0°F (22.8°C) | Low | 9 | $228 |
| September | 67.8°F (19.9°C) | Average | 9 | $309 |
| October | 56.7°F (13.7°C) | Average | 8 | $301 |
| November | 45.7°F (7.6°C) | Low | 8 | $289 |
| December | 39.9°F (4.4°C) | Average | 12 | $324 |
*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 Denver (DEN) to Tri-Cities (TRI)
- Colorado Springs to Tri-Cities (COS-TRI): Colorado Springs Airport (COS) lies approximately 73 miles from Denver International Airport (DEN). One-way economy fares for this route generally vary from $155 to $480, influenced by the season and how far in advance you book. Flights typically feature one-stop options, with common layovers at Dallas-Fort Worth International Airport (DFW) and Hartsfield-Jackson Atlanta International Airport (ATL). Major airlines servicing this route include American Airlines and Delta. Additionally, first class service is offered on this route.
- Denver to Asheville (DEN-AVL): Asheville Regional Airport (AVL) is located roughly 72 miles from Tri-Cities Regional Airport (TRI). One-way economy tickets on this journey usually range from $135 to $520, depending on the booking time and seasonality. This route commonly provides both non-stop and one-stop flights, with popular layover points at Charlotte-Douglas International Airport (CLT) and Hartsfield-Jackson Atlanta International Airport (ATL). Key airlines for this route include United and American Airlines. First class service is also available here.
How to find the best prices for flights from Denver (DEN) to Tri-Cities (TRI)
Getting some of the best deals on flights from Denver to Tri-Cities is all about timing and flexibility. Here are some key tips to help you save:
- Best times to book and fly: cheaper fares are usually found when booking 2-8 weeks in advance, which is also when most travelers make their reservations. Departures in the morning (5 am-12 pm) tend to offer lower prices and are the most popular flight times. Additionally, flying on Saturday generally provides cheaper options, even though Friday is the most popular travel day.
- Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
- Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Tri-Cities hotel and flight deals.
- 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.
- Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
- 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 Tri-Cities Regional Airport from Denver International Airport
Tri-Cities welcomes travelers from Denver with a range of transport options based on price, convenience, and proximity. Here's how to reach Tri-Cities efficiently:
- Hotel transfer: Transfers offer a convenient way to reach your hotel in Tri-Cities, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
- Car rental: Renting a car from Tri-Cities Regional Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Tri-Cities Regional 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 Tri-Cities Regional Airport, Tri-City Airport Seaport, a seaport, is located just 0.2 miles away on foot, providing easy access for travelers.
Denver to Tri-Cities Flights
The cheapest times to fly from Denver 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 Denver to Tri-Cities are during the month of March. You can find some of the cheapest flights from Denver to Tri-Cities with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Denver to Tri-Cities
Sunday is one of the best days to book for cheap flights from Denver 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 Denver 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 Denver to Tri-Cities in 2026. You can also book with separate airlines for your outbound and return journeys, from $349 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 Denver 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 Denver 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 Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) cost?
You can find cheap one-way flights from $349 and cheap return flights $339 Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) with Expedia. One-way flights generally range between $222 and $805, and roundtrip flights usually range from $419 to $1617. 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 Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) 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 Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
November is the cheapest month to fly from Denver, CO (DEN) to Tri-Cities, TN (TRI), with average return fares around $323. This is about 32% lower than the average price throughout the year, as demand typically drops after the summer travel peak. Other affordable months to consider are January and April.
*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
Enter DEN to TRI and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
American Airlines is one of the cheapest airlines offering connecting flights from Denver Intl. (DEN) to Tri-Cities Regional (TRI), with round-trip tickets starting from around $248. This flight includes a layover in O'Hare Intl. (ORD). 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 Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
To find a cheap flight from Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional), 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 Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
The best times to fly from Denver (DEN) to Tri-Cities (TRI) are November and April. November offers an average return flight price of around $323, while April is also popular. These months help you find better prices and a variety of flight options.
*Prices based on flights available on Expedia in the last year.
What is the earliest flight from Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
The earliest flight from Denver International Airport (DEN) to Tri-Cities Regional Airport (TRI) typically departs at around 12:15 AM, operated by United and Delta Airlines. This is a seasonal service active in December, and an early flight can help you make the most of your time in Tri-Cities. 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 Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
The most popular departure times for flights from Denver (DEN-Denver Intl.) to Tri-Cities (TRI-Tri-Cities Regional) are in the late morning, from 9am to noon. About 35% of passengers prefer this time window. Many major carriers, including United Airlines and American Airlines, operate flights during this time. This timing is popular because it allows you to travel early and arrive in Tri-Cities with the day ahead of you.
How long does it take to fly from Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
A flight from DEN to TRI with a layover takes around 5 hours 20 minutes, with the route 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 Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
First class seats are offered on the DEN to TRI route. First class cabins are available on:
- Delta Air Lines
- American Airlines
- United Airlines
How do I earn miles on a Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) flight with Expedia?
It's easy to earn miles on a Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) 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 Tri-Cities from Denver Intl. (DEN)?
From Denver Intl. (DEN), you can fly into Tri-Cities Regional (TRI) to reach Tri-Cities. Some flights may connect through major hubs like O'Hare Intl. (ORD), Washington Dulles Intl. (IAD), George Bush Intercontinental (IAH) before reaching Tri-Cities. 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 Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) at the last minute?
Typically, booking a last minute flight from Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) 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 Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) flight and hotel package?
Securing a Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) flight and hotel package 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 Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
If you booked your Denver, CO (DEN-Denver Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) 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 | Denver Intl. Airport |
|---|---|
Destination airport | Tri-Cities, TN |
Distance | 1,228 miles away |
Airlines serving | American Airlines, Delta |
Popular airline | American Airlines |
Roundtrip price | $339 |