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Denver

$278+ Cheap flights from Duluth to Denver (DLH - DEN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — DEN
квіт. 9 — квіт. 161
чт 4/9
чт 4/16
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 березень 10, 2026.

This Delta deal was found by Cheapflights users on 3/9. 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.
сб 10/1012:00 pm
DLH
-
DEN
1 stop4h 31m
Delta
ср 10/144:00 pm
DEN
-
DLH
1 stop6h 48m
Delta
Deal found 3/9$278
This Delta deal was found by Cheapflights users on 3/5. 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.
сб 4/2512:47 pm
DLH
-
DEN
1 stop3h 49m
Delta
вт 4/286:01 pm
DEN
-
DLH
1 stop3h 45m
Delta
Deal found 3/5$298
This Delta deal was found by Cheapflights users on 3/6. 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.
сб 4/44:32 pm
DLH
-
DEN
1 stop4h 19m
Delta
чт 4/96:12 pm
DEN
-
DLH
1 stop3h 35m
Delta
Deal found 3/6$307
This Delta deal was found by Cheapflights users on 3/8. 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.
нд 4/58:04 am
DLH
-
DEN
1 stop7h 04m
Delta
ср 4/86:12 pm
DEN
-
DLH
1 stop3h 35m
Delta
Deal found 3/8$324
This Delta deal was found by Cheapflights users on 3/9. 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.
сб 5/25:00 am
DLH
-
DEN
1 stop6h 33m
Delta
вт 5/56:00 pm
DEN
-
DLH
1 stop3h 46m
Delta
Deal found 3/9$327
This Delta deal was found by Cheapflights users on 3/9. 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.
вт 3/2412:37 pm
DLH
-
DEN
1 stop4h 23m
Delta
сб 3/286:20 am
DEN
-
DLH
1 stop4h 36m
Delta
Deal found 3/9$328
This Delta deal was found by Cheapflights users on 3/8. 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.
вт 3/248:04 am
DLH
-
DEN
1 stop7h 04m
Delta
вт 3/316:12 pm
DEN
-
DLH
1 stop3h 35m
Delta
Deal found 3/8$333
This Delta deal was found by Cheapflights users on 3/7. 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.
вт 8/45:10 am
DLH
-
DEN
1 stop4h 09m
Delta
сб 8/86:10 am
DEN
-
DLH
1 stop3h 47m
Delta
Deal found 3/7$336
This deal was found by Cheapflights users on 3/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
сб 4/412:37 pm
DLH
-
DEN
1 stop4h 26m
Delta
ср 4/85:06 pm
DEN
-
DLH
1 stop4h 41m
Delta
Deal found 3/9$337

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 березень 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$278

Popular in

March

Cheapest in

September

Average price

$624
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
Highest demand for flights based on searches. 22% potential increase in price ($97 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 березень 10, 2026.
Use the filters below to find and compare flights from Duluth to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

сб 4/25

4:29 pm-8:43 pm

1 stop5h 14m

Denver Intl

вт 4/28

6:30 am-12:07 pm

1 stop4h 37m

$278

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

сб 5/2

5:00 am-10:33 am

1 stop6h 33m

Denver Intl

вт 5/5

6:00 pm-10:46 pm

1 stop3h 46m

$327

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

чт 5/7

5:15 am-8:01 am

1 stop3h 46m

Denver Intl

вт 5/12

9:06 am-3:48 pm

1 stop5h 42m

$337
Quickest round-trip

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

чт 5/14

5:15 am-8:01 am

1 stop3h 46m

Denver Intl

вт 5/19

6:00 am-12:04 pm

1 stop5h 04m

$343

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

чт 4/23

6:57 pm-12:58 am

1 stop7h 01m

Denver Intl

нд 4/26

5:44 pm-12:29 am

1 stop5h 45m

$348

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

ср 5/27

6:10 pm-11:37 pm

1 stop6h 27m

Denver Intl

сб 5/30

4:20 pm-11:08 pm

1 stop5h 48m

$348

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

чт 5/7

5:15 am-8:01 am

1 stop3h 46m

Denver Intl

пн 5/11

6:00 am-12:04 pm

1 stop5h 04m

$373

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

чт 4/16

6:57 pm-12:58 am

1 stop7h 01m

Denver Intl

нд 4/19

5:44 pm-12:29 am

1 stop5h 45m

$383

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

сб 5/23

3:03 pm-8:22 pm

1 stop6h 19m

Denver Intl

вт 6/9

4:45 pm-11:08 pm

1 stop5h 23m

$407

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

чт 5/14

6:44 pm-12:56 am

1 stop7h 12m

Denver Intl

нд 5/17

6:00 am-2:22 pm

1 stop7h 22m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

Sorted by cheapest first

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Duluth-Denver flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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, December is the cheapest month in which you can book a flight from Duluth to Denver (average of $92). Flying from Duluth to Denver in March is currently the most expensive (average of $328). 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 березень 10, 2026.
Read through reviews of airlines operating flights from Duluth to Denver, such as Delta,United Airlines, andSun Country Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,276 reviews

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Food

7.2

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
8,276 reviews
Delta
7.9
Good
8,276 reviews

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Food

7.2

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
9,409 reviews
Delta
7.9
Good
8,276 reviews

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Food

7.2

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
6.8
Okay
340 reviews
Delta
7.9
Good
8,276 reviews

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Food

7.2

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 5h 14m. 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, December is the cheapest month in which you can book a flight from Duluth to Denver (average of $92). Flying from Duluth to Denver in March is currently the most expensive (average of $328). 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
Thornton
Black Hawk
Lakewood
Broomfield
Westminster
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Glendale
Manitou Springs
Frisco
Fort Morgan
Brighton
Evergreen

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 березень 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$49Average$191FlexibilityNo cancel feeOn-time83%
DeltaCheapest$123Average$329FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$238Average$397FlexibilityNo cancel feeOn-time69%

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