$109 Cheap Flights from Tucson (TUS) to Denver (DEN)
Popular airlines from Tucson International Airport (TUS) to Denver Intl. Airport (DEN)
American AirlinesAmerican Airlines
Southwest AirlinesSouthwest Airlines
UnitedUnited
DeltaDelta
Alaska AirlinesAlaska Airlines
Be in the knowGet alerts if flight prices drop or rise*
Book smarterSave up to 30% on select hotels after you book a flight*
Cheap Flights from Tucson to Denver (TUS-DEN)
Alternative airports near Denver
Prices were available within the past 7 days. Prices and availability are subject to change.
Book with confidence
Tucson (TUS) to Denver (DEN) at a glance
Travel from Tucson (TUS) to Denver (DEN) with a selection of airlines offering weekly flights on this domestic short-haul route. Whether you prefer full-service or low-cost options, you can find the best itinerary that suits your budget, schedule, and travel plans. Explore Denver's renowned attractions and neighborhoods as you check for cheap flights from Tucson, AZ to Denver. Get the essential details for your journey from Tucson International Airport (TUS) to Denver International Airport (DEN).
- Fastest flight duration: around 2 hours non-stop
- Route distance: roughly 600 miles (970 km)
- Flights per week: around 25+ flights with multiple daily departures on average
- Typical fares (one-way): economy tickets often range from $60–$330, depending on seasonality and how far ahead you book
Flights from Tucson International Airport (TUS) to Denver International Airport (DEN)
Based on the latest traveler bookings, here are the most popular airlines flying from Tucson to Denver, typically favored for non-stop and one-stop flights. Common layover options include Sky Harbor International Airport (PHX) with a 50-minute stop, Harry Reid International Airport (LAS) with a 1-hour and 15-minute stop, and Los Angeles International Airport (LAX) also with a 1-hour and 15-minute layover. These choices allow you to customize your trip by balancing price, total travel time, and cabin class to find the ideal itinerary.
- United: This full-service airline provides non-stop flights, with one-way prices generally falling between $95 and $350. It represents about 46% of the departures on this route, with an overall flight duration of 2 hours.
- Southwest Airlines: Known for its low-cost options, Southwest offers both non-stop and one-stop services. One-way fares typically range from $90 to $355, covering around 39% of the departures on this route, with non-stop journeys taking about 2 hours.
- Frontier Airlines: As a budget-friendly choice, Frontier provides non-stop and one-stop services, with one-way prices usually between $60 and $200. It accounts for roughly 9% of the departures on this route, and non-stop travel time is around 2 hours.
- American Airlines: This full-service carrier offers one-stop services at one-way fares that generally range from $105 to $380. It has about 5% of departures on this route, with a total travel time of approximately 4 hours, including a 3-hour flight and layover.
- Delta: As another full-service option, Delta provides one-stop services with one-way fares typically ranging from $100 to $335. It contributes around 1% of the departures for this route, with an in-flight duration of 3 hours and a total journey time of about 4 hours, including layover.
Travelers have the option to upgrade their flight from Tucson to Denver, where United offers first-class service on this route.
Best time to fly from Tucson (TUS) to Denver (DEN)
The most popular months for travelers flying from Tucson to Denver are February, March, and April, when peak temperatures in Denver reach up to 45.3°F in April. If you prefer quieter travel, consider September, the least busy time to visit with temperatures around 65.1°F and typically the lowest average one-way fare (around $137). Flight availability peaks in October, with approximately 31 flights per week, making it easier to find convenient departure times. January has the fewest flights, with approximately 15 flights per week.
- Cheapest time to fly: September usually offers good deals with average one-way fare around $137, roughly 18% cheaper than the yearly average.
- Another budget-friendly time to fly: October typically offers an average one-way fare of around $152.
- Most flight options: October has the highest number of flights from Tucson to Denver, with approximately 31 flights per week, giving you more flexibility in scheduling your trip.
| Month | Temperature | Demand | Weekly Flights | Average one-way Fare |
| January | 28.4°F (-2.0°C) | Low | 15 | $180 |
| February | 28.6°F (-1.9°C) | High | 20 | $163 |
| March | 38.5°F (3.6°C) | High | 29 | $168 |
| April | 45.3°F (7.4°C) | High | 25 | $179 |
| May | 54.0°F (12.2°C) | Average | 26 | $167 |
| June | 66.9°F (19.4°C) | Average | 26 | $175 |
| July | 72.1°F (22.3°C) | Low | 25 | $172 |
| August | 71.2°F (21.8°C) | Average | 26 | $163 |
| September | 65.1°F (18.4°C) | Low | 25 | $137 |
| October | 50.2°F (10.1°C) | Average | 31 | $152 |
| November | 38.5°F (3.6°C) | Average | 28 | $177 |
| December | 28.9°F (-1.7°C) | Average | 27 | $181 |
*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 Tucson (TUS) to Denver (DEN)
How to find the best prices for flights from Tucson (TUS) to Denver (DEN)
Getting some of the best deals on flights from Tucson to Denver 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 aligns with when most travelers make their reservations. Departures in the morning (5 am-12 pm) tend to be more affordable and are also the most popular flight times. Additionally, flying on Wednesday generally offers lower prices, while Friday is the busiest 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.*
- 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 Denver International Airport from Tucson International Airport
Denver welcomes travelers from Tucson 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 easy access to public transportation.
Tucson to Denver Flights
The cheapest times to fly from Tucson 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 Tucson to Denver are during the month of October. You can find some of the cheapest flights from Tucson to Denver with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Tucson to Denver
Sunday is one of the best days to book for cheap flights from Tucson 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 Tucson 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 Tucson to Denver in 2026. You can also book with separate airlines for your outbound and return journeys, from $109 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 Tucson 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 Tucson 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.
Frequently Asked Questions
How much does a flight from Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.) cost?
You can find cheap one-way flights from $109 and cheap return flights $218 Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.) with Expedia. One-way flights typically cost between $150 and $1006, and return flights often range between $269 and $1350. 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 Tucson, AZ (TUS-Tucson Intl.) 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 Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.)?
The cheapest month to fly from TUS to DEN is October when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.)?
There are 2 airlines offering direct flights from TUS to DEN:
- United operates around 39 direct flights from TUS to DEN every week
- Frontier Airlines operates around 7 direct flights from TUS to DEN every week
What is the cheapest airline that flies from Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.)?
Frontier Airlines is one of the cheapest airlines offering nonstop flights from Tucson, AZ (TUS) to Denver, CO (DEN), with round-trip tickets starting from around $48. 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 Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.)?
To find a cheap flight from Tucson, AZ (TUS-Tucson Intl.) 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 airline to fly with from Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.)?
The best airline to fly with from Tucson, AZ (TUS) to Denver, CO (DEN) will differ from traveler to traveler. If you like to fly early, WN offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. Alaska Airlines offers the most daily flights from TUS to DEN, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.)?
There are approximately 9 nonstop flights per day from Tucson Intl. (TUS) to Denver Intl. (DEN). For more options, look at flights that include layovers.
What is the earliest flight from Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.)?
The earliest flight from Tucson International Airport (TUS) to Denver International Airport (DEN) typically departs at around 12:45 AM, operated by American Airlines. An early departure like this can help you maximize your time in Denver. This service operates seasonally. 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 Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.)?
The most popular departure times for flights from Tucson, AZ (TUS) to Denver, CO (DEN) are in the early morning, from 6am to 9am. About 26% of passengers prefer this time window. Many major carriers, including United, Southwest and American Airlines, offer flights during this window. This timing works well because it allows you to arrive in Denver with plenty of time to enjoy your day.
How long does it take to fly from Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.)?
A nonstop flight from TUS to DEN typically takes around 2 hours, covering approximately 638 miles. Connecting flights on this route usually add 3 hours 20 minutes to your travel time. 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 Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.)?
First class is available on flights from TUS to DEN. First class cabins are available on:
- Delta Air Lines
- American Airlines
- United Airlines
How much is a business class flight from Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.)?
A direct, return business class ticket from Tucson (TUS) to Denver (DEN) typically costs between $1,047 - $1,682. A non-stop, one-way business class flight is usually around $457 - $647. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.) if you opt for a connecting flight.
*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.) flight with Expedia?
It's easy to earn miles on a Tucson, AZ (TUS-Tucson Intl.) 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 Tucson Intl. (TUS)?
From Tucson Intl. (TUS), you can fly into Denver Intl. (DEN) to reach Denver. Some flights may connect through major hubs like Harry Reid Intl. (LAS), Portland Intl. (PDX), San Diego Intl. (SAN) 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 Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.) at the last minute?
Typically, booking a last minute flight from Tucson, AZ (TUS-Tucson Intl.) 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 Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.) flight and hotel package?
Securing a Tucson, AZ (TUS-Tucson Intl.) 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 Tucson, AZ (TUS-Tucson Intl.) to Denver, CO (DEN-Denver Intl.)?
If you booked your Tucson, AZ (TUS-Tucson Intl.) 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 | Tucson International Airport |
|---|---|
Destination airport | Denver Intl. Airport |
Distance | 638 miles away |
Airlines serving | American Airlines, Southwest Airlines, United, Delta, Alaska Airlines |
Popular airline | American Airlines |
Roundtrip price | $218 |
Average flight time | 2 hours 7 mins |