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$146+ Cheap flights from Duluth to Denver (DLH - 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — DEN
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Duluth to Denver

Cheapest flights from Duluth to Denver
Explore the most affordable flight options available from Duluth to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Delta deal was found by Cheapflights users on 12/9. 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.
Thu 12/185:00 amDLH - DEN
1 stop6h 07mDelta
Thu 12/254:14 pmDEN - DLH
1 stop5h 38mDelta
Deal found 12/9$298
This United Airlines deal was found by Cheapflights users on 12/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/203:03 pmDLH - DEN
1 stop8h 03mUnited Airlines
Thu 12/256:00 amDEN - DLH
1 stop7h 28mUnited Airlines
Deal found 12/9$368
This Delta deal was found by Cheapflights users on 12/9. 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.
Thu 12/185:00 amDLH - DEN
1 stop6h 07mDelta
Fri 12/266:00 amDEN - DLH
1 stop4h 15mDelta
Deal found 12/9$402
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/187:50 amDLH - DEN
1 stop7h 53mUnited Airlines
Sat 1/107:50 amDEN - DLH
1 stop5h 40mUnited Airlines
Deal found 12/10$414
This Delta deal was found by Cheapflights users on 12/9. 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.
Thu 12/185:00 amDLH - DEN
1 stop6h 07mDelta
Wed 12/245:30 amDEN - DLH
2 stops16h 22mDelta
Deal found 12/9$472
This United Airlines deal was found by Cheapflights users on 12/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/203:03 pmDLH - DEN
1 stop8h 03mUnited Airlines
Fri 12/264:26 pmDEN - DLH
1 stop5h 29mUnited Airlines
Deal found 12/9$482
This United Airlines deal was found by Cheapflights users on 12/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/203:03 pmDLH - DEN
1 stop8h 03mUnited Airlines
Wed 12/246:50 pmDEN - DLH
2 stops18h 38mUnited Airlines
Deal found 12/9$498
This Delta deal was found by Cheapflights users on 12/9. 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 12/195:00 amDLH - DEN
1 stop6h 37mDelta
Tue 12/236:27 pmDEN - DLH
2 stops27h 25mDelta
Deal found 12/9$546
This Delta deal was found by Cheapflights users on 12/9. 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.
Thu 12/185:00 amDLH - DEN
1 stop6h 07mDelta
Tue 12/235:53 pmDEN - DLH
1 stop20h 37mDelta
Deal found 12/9$572

Find flight deals from Duluth to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Duluth (DLH) 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$258
(United Airlines)

One-way from

$168
(Delta)

Popular in

March

Cheapest in

September

Average price

$170
Provider with most accurate pricing for Duluth Intl-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Duluth Intl-Denver Intl flights.
Search Deals
From Duluth Intl to Denver Intl
Search Deals
One-way flight from Duluth Intl to Denver Intl
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($81 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Duluth 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 December 12, 2025.
Use the filters below to find and compare flights from Duluth to Denver that are best for you.

Fly from

Duluth

Fly to

Denver

Route

Depart

Return

Price

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 4/16

4:20 pm-10:29 pm

1 stop7h 09m

Denver Intl

Wed 4/22

6:10 am-10:57 am

1 stop3h 47m

$278

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 2/21

4:18 pm-8:05 pm

1 stop4h 47m

Denver Intl

Sat 2/28

5:49 pm-11:25 pm

1 stop4h 36m

$288

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 2/21

3:12 pm-10:05 pm

1 stop7h 53m

Denver Intl

Sat 2/28

7:45 am-2:37 pm

1 stop5h 52m

$308

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 1/24

3:05 pm-8:12 pm

1 stop6h 07m

Denver Intl

Tue 1/27

7:50 am-2:30 pm

1 stop5h 40m

$410

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Tue 1/6

4:24 pm-8:05 pm

1 stop4h 41m

Denver Intl

Sun 1/11

5:51 pm-11:52 pm

1 stop5h 01m

$423

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Wed 4/22

11:26 am-3:56 pm

1 stop5h 30m

Denver Intl

Sat 4/25

10:00 am-9:57 pm

2 stops10h 57m

$469

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Wed 4/22

4:20 pm-10:29 pm

1 stop7h 09m

$146

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 2/19

12:15 pm-4:39 pm

1 stop5h 24m

$168

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 2/28

4:18 pm-8:05 pm

1 stop4h 47m

$214

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sun 2/1

11:51 am-4:41 pm

1 stop5h 50m

$264

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 17 results
1
2

Compare providers for flights from Duluth to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Duluth to Denver in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Duluth-Denver flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Duluth-Denver flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Duluth-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Duluth-Denver flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Duluth-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Duluth to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Duluth 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 Duluth to Denver

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

Currently, April is the cheapest month in which you can book a flight from Duluth to Denver (average of $86). Flying from Duluth to Denver in February is currently the most expensive (average of $277). 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.

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 December 12, 2025.
Read through reviews of airlines operating flights from Duluth to Denver, such as Delta, United Airlines, and Sun Country Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,007 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,095 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Sun Country Air
6.9
Okay
333 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

  • How long is the flight from Duluth to Denver?

    A quick flight from Duluth to Denver can take about 7h 09m. Delta provides one of the quickest options available for as low as $278. There are 789 mi between Duluth and Denver. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Sun Country Air, at $49, was found to be the cheapest airline from Duluth to Denver.Alternate airlines to your destination round-trip include Delta and United Airlines. Sun Country Air is priced at 85% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Duluth 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 Duluth to Denver?

    Currently, April is the cheapest month in which you can book a flight from Duluth to Denver (average of $86). Flying from Duluth to Denver in February is currently the most expensive (average of $277). 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
Black Hawk
Thornton
Westminster
Broomfield
Lakewood
Golden
Winter Park
Greeley
Lone Tree
Cripple Creek
Silverthorne
Central City
Frisco
Wheat Ridge
Manitou Springs
Fort Morgan
Brighton
Longmont
Idaho Springs
Parker

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Duluth to Denver

Discover the top 3 airlines that operate flights from Duluth 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$69Average$191FlexibilityNo cancel feeOn-time83%
DeltaCheapest$138Average$336FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$240Average$383FlexibilityNo cancel feeOn-time69%

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