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$41+ Cheap flights from Tucson to Denver (TUS - DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/31. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — DEN
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from Tucson to Denver Intl are usually found in April or March, booked 83 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap flight deals from Tucson to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Tucson (TUS) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 28, 2025.

Round-trip from

$119
(Frontier)

One-way from

$41
(Frontier)

Popular in

December

Cheapest in

April

Average price

$291

Good round-trip deal

$233 or less

Good one-way deal

$141 or less
From Tucson to Denver Intl
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One-way flight from Tucson to Denver Intl
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Highest demand for flights based on searches. 7% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Tucson to Denver Intl.
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Price to beat on a one-way flight from Tucson to Denver Intl.
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Find flight deals from Tucson to Denver

Cheapest flights from Tucson to Denver
Explore the most affordable flight options available from Tucson to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

This Frontier deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/911:36 amTUS - DEN
Nonstop2h 00mFrontier
Sun 10/129:42 amDEN - TUS
Nonstop1h 59mFrontier
Deal found 7/27$119
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/124:30 pmTUS - DEN
1 stop6h 14mDelta
Sun 9/146:30 amDEN - TUS
1 stop5h 44mDelta
Deal found 7/28$207
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/125:40 amTUS - DEN
Nonstop1h 50mSouthwest
Tue 9/168:30 amDEN - TUS
Nonstop1h 55mSouthwest
Deal found 7/28$217

Cheapflights Fare Finder

 
Customize your flight search to find flights from Tucson to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
Use the filters below to find and compare flights from Tucson to Denver that are best for you.

Fly from

Tucson

Fly to

Denver

Route

Depart

Return

Price

TucsonDenver

TUS - DEN

TUSDEN

Tucson

Thu 10/9

11:36 am-2:36 pm

Nonstop2h 00m

Denver Intl

Sun 10/12

9:42 am-10:41 am

Nonstop1h 59m

$119

TucsonDenver

TUS - DEN

TUSDEN

Tucson

Fri 9/12

4:30 pm-11:44 pm

1 stop6h 14m

Denver Intl

Sun 9/14

6:30 am-11:14 am

1 stop5h 44m

$207

TucsonDenver

TUS - DEN

TUSDEN

Tucson

Fri 9/12

5:40 am-8:30 am

Nonstop1h 50m

Denver Intl

Tue 9/16

8:30 am-9:25 am

Nonstop1h 55m

$217

TucsonDenver

TUS - DEN

TUSDEN

Tucson

Thu 7/31

11:30 am-2:36 pm

Nonstop2h 06m

$41

TucsonDenver

TUS - DEN

TUSDEN

Tucson

Wed 8/27

11:57 am-6:21 pm

1 stop5h 24m

$104

TucsonDenver

TUS - DEN

TUSDEN

Tucson

Wed 8/27

1:30 pm-4:27 pm

Nonstop1h 57m

$109

TucsonDenver

TUS - DEN

TUSDEN

Tucson

Fri 8/15

3:00 pm-10:05 pm

1 stop6h 05m

$123

TucsonDenver

TUS - DEN

TUSDEN

Tucson

Thu 9/25

10:45 am-4:40 pm

1 stop4h 55m

$129

TucsonDenver

TUS - DEN

TUSDEN

Tucson

Tue 9/30

7:15 am-10:44 am

2 stops26h 29m

$172

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/25

The best insider tips for Tucson to Denver flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Tucson to Denver trip
Airlines
United Airlines

United's Economy Plus offers extra legroom seats towards the front of the economy cabin.


Prepay for checked bags at least 24 hours before to save on fees.

Read more about United Airlinesby Harriet Baskas
Southwest

Enjoy free snacks and non-alcoholic drinks, plus a free drink on special occasions.


Southwest offers two free checked bags, including oversized items like skis or golf clubs.

Read more about Southwestby Marisa Garcia
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Marisa Garcia

Marisa Garcia

Expert on Southwest

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more

Best time to book a flight from Tucson to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Tucson with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Tucson to Denver

How far ahead should I book a flight from Tucson to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Tucson to Denver. Price data was last updated on July 25, 2025.

Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from Tucson to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Tucson to Denver?

Currently, October is the cheapest month in which you can book a flight from Tucson to Denver (average of $197). Flying from Tucson to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from TUS to DEN?

Find hourly flight availability from Tucson to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2025.

A simple way to save on the total cost of your ticket is to fly from Tucson to Denver in the evening. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight at noon.

Weekly flight availability from Tucson to Denver

Explore weekly flight availability from Tucson to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 28, 2025.

The most flights from TUS to DEN are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 on average).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated July 28, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Tucson to Denver by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,237 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,971 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,893 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Tucson to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Tucson to Denver?

    If you book a flight from Tucson to Denver, you will be flying from Tucson to Denver Intl. Flights to Denver Intl (DEN) from Tucson (TUS) take 1h 50m for a nonstop flight. There are 7 flights from Tucson to Denver per day from 5 airlines.

  • How popular is this Tucson to Denver flight route?

    Flights from Tucson to Denver Intl have been viewed 52 times in the past calendar month.

  • What are the cheapest airlines flying from Tucson to Denver round-trip?

    According to our current data, Frontier ($119), Delta ($207), and Southwest ($217) offers the cheapest pricing from Tucson to Denver. Frontier is currently priced 56% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Tucson to Denver one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $41. Users have also found prices from $104 and $109 on Delta and United Airlines, respectively.

  • What are the most reliable airlines from Tucson to Denver?

    Consider Air Canada (73%), SkyWest Airlines (73%) or United Airlines (69%) when booking your flight. These represent the most reliable airlines when flying from Tucson to Denver.

  • What are the cheapest flights from Tucson to Denver?

    While on average a flight from Tucson to Denver is generally $1,690, our data shows the cheapest flight currently is $87. When looking at the most popular route, (Tucson - Denver Intl), you can expect to pay $142 for that flight.

  • Can I find deals for flights from Tucson to Denver that include hotel bookings?

    Yes. In addition to deals on Tucson to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Tucson to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Tucson to Denver.

  • Can I find deals for business class flights from Tucson to Denver?

    Yes. Cheapflights offers flight deals from Tucson to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Tucson to Denver?

    Currently, October is the cheapest month in which you can book a flight from Tucson to Denver (average of $197). Flying from Tucson to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Brighton
Silverthorne
Golden
Thornton
Greeley
Frisco
Grand Lake
Manitou Springs
Central City
Fort Morgan
Glendale
Copper Mountain
Wheat Ridge
Longmont
Broomfield

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Tucson to Denver

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Top 5 airlines flying from Tucson to Denver

Discover the top 5 airlines that operate flights from Tucson to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$37Average$130FlexibilityNo cancel feeOn-time62%
DeltaCheapest$98Average$266FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$174Average$294FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$191Average$294FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$196Average$290FlexibilityNo cancel feeOn-time63%

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