$83 Cheap Flights from Tucson (TUS) to Denver (DEN)

View $83 flight on Sun, Aug 17, 2025Opens in a new window

Popular airlines from Tucson International Airport (TUS) to Denver Intl. Airport (DEN)

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Cheap Flights from Tucson to Denver (TUS-DEN)

Prices were available within the past 7 days and start at $83 for one-way flights and $108 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sun, Oct 26 - Thu, Oct 30
TUS
Tucson
DEN
Denver
$108 Roundtrip, found 2 days ago
$108
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, Oct 26 from Tucson to Denver, returning Thu, Oct 30, priced at $108 found 2 days ago
Frontier Airlines
Sun, Sep 14 - Thu, Sep 25
TUS
Tucson
DEN
Denver
$122 Roundtrip, found 2 days ago
$122
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, Sep 14 from Tucson to Denver, returning Thu, Sep 25, priced at $122 found 2 days ago
Frontier Airlines
Thu, Nov 6 - Sun, Nov 16
TUS
Tucson
DEN
Denver
$127 Roundtrip, found 3 days ago
$127
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Nov 6 from Tucson to Denver, returning Sun, Nov 16, priced at $127 found 3 days ago
Frontier Airlines
Sun, Aug 10 - Sun, Aug 31
TUS
Tucson
DEN
Denver
$134 Roundtrip, found 6 days ago
$134
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Sun, Aug 10 from Tucson to Denver, returning Sun, Aug 31, priced at $134 found 6 days ago
Frontier Airlines
Thu, Aug 14 - Sun, Aug 17
TUS
Tucson
DEN
Denver
$140 Roundtrip, found 1 hour ago
$140
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Aug 14 from Tucson to Denver, returning Sun, Aug 17, priced at $140 found 1 hour ago
Frontier Airlines
Thu, Jul 31 - Thu, Aug 28
TUS
Tucson
DEN
Denver
$143 Roundtrip, found 4 days ago
$143
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Jul 31 from Tucson to Denver, returning Thu, Aug 28, priced at $143 found 4 days ago
Southwest Airlines
Sun, Aug 17 - Sun, Aug 24
TUS
Tucson
DEN
Denver
$160 Roundtrip, found 4 days ago
$160
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Sun, Aug 17 from Tucson to Denver, returning Sun, Aug 24, priced at $160 found 4 days ago
Delta
Fri, Oct 24 - Sun, Oct 26
TUS
Tucson
DEN
Denver
$178 Roundtrip, found 1 day ago
$178
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Oct 24 from Tucson to Denver, returning Sun, Oct 26, priced at $178 found 1 day ago
United
Fri, Oct 31 - Sun, Nov 2
TUS
Tucson
DEN
Denver
$190 Roundtrip, found 8 hours ago
$190
Roundtrip
found 8 hours ago
Select United flight, departing Fri, Oct 31 from Tucson to Denver, returning Sun, Nov 2, priced at $190 found 8 hours ago
Alaska Airlines
Wed, Oct 22 - Mon, Oct 27
TUS
Tucson
DEN
Denver
$358 Roundtrip, found 5 days ago
$358
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Oct 22 from Tucson to Denver, returning Mon, Oct 27, priced at $358 found 5 days ago

Find the cheapest month to fly from Tucson (TUS) to Denver (DEN)

April is typically the cheapest month to fly

From $78 - $381 per traveler.

Graph displaying average flight prices per month

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 $317
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $317
Flights from Tucson (TUS) to Denver (DEN)
Origin airport
Tucson Intl.
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$108
Distance
638 mi
Average flight time
2 hours 53 mins

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 2025. You can also book with separate airlines for your outbound and return journeys, from $83 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 Intl. Airport (TUS) to Denver Intl. Airport (DEN) cost?
Snag cheap return fares starting from $118 from Tucson Intl. Airport (TUS) to Denver Intl. Airport (DEN). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines flight leaving TUS on August 17 2025 and touching down at DEN. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from TUS to DEN?
The cheapest flights from TUS to DEN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Tucson Intl. Airport (TUS) to Denver Intl. Airport (DEN)?
When departing from Tucson Intl. Airport (TUS), you can jump on a nonstop flight to Denver Intl. Airport (DEN) with United Airlines.
What is the cheapest airline that flies from TUS to DEN?
With tickets starting at $74 for a one-way journey from TUS to DEN, Frontier Airlines is currently the cheapest carrier flying this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from TUS on August 17 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Tucson Intl. Airport (TUS) to Denver Intl. Airport (DEN)?
With an average of 8 direct flights that operate from Tucson Intl. Airport (TUS) to Denver Intl. Airport (DEN) every day, you'll be cruising above the clouds before you know it.
What are the most popular departure times for flights from Tucson Intl. Airport (TUS) to Denver Intl. Airport (DEN)?
Flights between TUS and DEN are busiest at 8 AM. If you want a more relaxed experience and possibly cheaper prices, choose a departure that's outside typical rush times.
What day of the week has the most flights from TUS to DEN?
Travel on a Sunday if you're searching for the best selection of flights from Tucson Intl. Airport (TUS) to Denver Intl. Airport (DEN).
What is the earliest flight from Tucson Intl. Airport (TUS) to Denver Intl. Airport (DEN)?
Take the earliest flight at around 5:05AM UTC-7, heading out of Tucson Intl. Airport (TUS). You'll be in the air for about 2h, landing at Denver Intl. Airport (DEN) at approximately 7:05AM UTC-7.
How long does it take to fly from Tucson Intl. Airport (TUS) to Denver Intl. Airport (DEN)?
It takes around 2 hours and 2 minutes to cover the 640 mi from TUS to DEN.
What airline has the least delays from TUS to DEN?
United Airlines has the best track record for on-time direct flights from Tucson Intl. Airport (TUS) to Denver Intl. Airport (DEN), with an on-time score of 82%. Use the Expedia App to view your journey status before you head off and get real-time updates about any trip changes.
What is the best time to fly from Tucson Intl. Airport (TUS) to Denver Intl. Airport (DEN)?
To reach Denver Intl. Airport (DEN) without delays, pick a flight that takes off from Tucson Intl. Airport (TUS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Denver from Tucson Intl. Airport (TUS)?
Browse your flight options from Tucson Intl. Airport (TUS) to Denver Intl. Airport (DEN). This is the only Denver airport you can touch down at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Tucson Intl. Airport (TUS) to Denver Intl. Airport (DEN) last-minute?
Waiting until just before your departure to book a ticket from TUS to DEN generally means paying more. While you might find some last-minute deals, they aren't always guaranteed. Keep your travel plans flexible for the best chance of getting a bargain.
Is it cheaper to book a TUS to DEN flight and hotel package?
Opting for a TUS to DEN flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Choose from our extensive range of stays and then add car rentals, flights and activities 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 Intl. Airport (TUS) to Denver Intl. Airport (DEN)?
It's generally possible to cancel or reschedule your TUS to DEN flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

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