$28 Cheap Flights from Tucson (TUS) to Denver (DEN)

View $28 flight on Thu, Oct 16, 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 $28 for one-way flights and $49 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Nov 6 - Sun, Nov 9
TUS
Tucson
DEN
Denver
$49 Roundtrip, found 2 hours ago
$49
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Thu, Nov 6 from Tucson to Denver, returning Sun, Nov 9, priced at $49 found 2 hours ago
Frontier Airlines
Thu, Sep 4 - Sun, Sep 7
TUS
Tucson
DEN
Denver
$81 Roundtrip, just found
$81
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Sep 4 from Tucson to Denver, returning Sun, Sep 7, priced at $81 just found
Frontier Airlines
Thu, Sep 11 - Thu, Sep 18
TUS
Tucson
DEN
Denver
$85 Roundtrip, found 3 days ago
$85
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Sep 11 from Tucson to Denver, returning Thu, Sep 18, priced at $85 found 3 days ago
Frontier Airlines
Sun, Sep 21 - Fri, Sep 26
TUS
Tucson
DEN
Denver
$87 Roundtrip, found 3 days ago
$87
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sun, Sep 21 from Tucson to Denver, returning Fri, Sep 26, priced at $87 found 3 days ago
Frontier Airlines
Thu, Sep 18 - Fri, Sep 19
TUS
Tucson
DEN
Denver
$89 Roundtrip, found 8 hours ago
$89
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Thu, Sep 18 from Tucson to Denver, returning Fri, Sep 19, priced at $89 found 8 hours ago
Frontier Airlines
Sun, Sep 21 - Sun, Sep 28
TUS
Tucson
DEN
Denver
$89 Roundtrip, just found
$89
Roundtrip
just found
Select Frontier Airlines flight, departing Sun, Sep 21 from Tucson to Denver, returning Sun, Sep 28, priced at $89 just found
American Airlines
Thu, Nov 6 - Sun, Nov 9
TUS
Tucson
DEN
Denver
$146 Roundtrip, found 2 hours ago
$146
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Thu, Nov 6 from Tucson to Denver, returning Sun, Nov 9, priced at $146 found 2 hours ago
United
Wed, Oct 15 - Tue, Oct 21
TUS
Tucson
DEN
Denver
$217 Roundtrip, found 1 hour ago
$217
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Oct 15 from Tucson to Denver, returning Tue, Oct 21, priced at $217 found 1 hour ago
Southwest Airlines
Wed, Oct 15 - Tue, Oct 21
TUS
Tucson
DEN
Denver
$217 Roundtrip, found 1 hour ago
$217
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Wed, Oct 15 from Tucson to Denver, returning Tue, Oct 21, priced at $217 found 1 hour ago
Alaska Airlines
Tue, Oct 14 - Tue, Oct 21
TUS
Tucson
DEN
Denver
$382 Roundtrip, found 1 hour ago
$382
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Oct 14 from Tucson to Denver, returning Tue, Oct 21, priced at $382 found 1 hour ago

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

April is typically the cheapest month to fly

From $78 - $394 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 $277
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $277
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
$48
Distance
638 mi
Average flight time
2 hours 56 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 November. 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 $28 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?
Grab a cheap one-way flight from $28 or cheap return flight from $49 from Tucson Intl. Airport (TUS) to Denver Intl. Airport (DEN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Tucson Intl. Airport (TUS) to Denver Intl. Airport (DEN)?
The cheapest month to fly from TUS to DEN is November, when there's less demand. Off-peak season is typically when airlines offer better prices between these airports.
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 Tucson Intl. Airport (TUS) to Denver Intl. Airport (DEN)?
Southwest Airlines and United Airlines are some well-known airlines offering competitive fares. Don't forget that flight prices from Tucson Intl. Airport (TUS) to Denver Intl. Airport (DEN) can vary depending on the time of year, demand and how early you book. With Expedia's search tool, you can easily find a TUS to DEN flight that matches your preferences and budget.
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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