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$123+ 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — DEN
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Find 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 October 28, 2025.

This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/113:06 pmDLH - DEN
1 stop7h 43mUnited Airlines
Sat 11/156:00 amDEN - DLH
1 stop7h 31mUnited Airlines
Deal found 10/27$248
This Delta deal was found by Cheapflights users on 10/26. 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.
Sat 11/84:10 pmDLH - DEN
1 stop4h 20mDelta
Wed 11/124:18 pmDEN - DLH
1 stop6h 32mDelta
Deal found 10/26$288
This Delta deal was found by Cheapflights users on 10/26. 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 11/144:18 pmDLH - DEN
1 stop4h 13mDelta
Sun 11/165:45 amDEN - DLH
1 stop4h 36mDelta
Deal found 10/26$308
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:50 amDLH - DEN
1 stop5h 49mDelta
Tue 11/46:55 pmDEN - DLH
1 stop3h 47mDelta
Deal found 10/27$323
This Delta deal was found by Cheapflights users on 10/28. 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 11/712:02 pmDLH - DEN
1 stop4h 40mDelta
Wed 11/125:45 amDEN - DLH
1 stop4h 36mDelta
Deal found 10/28$338
This Delta deal was found by Cheapflights users on 10/28. 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.
Sun 11/27:50 amDLH - DEN
1 stop5h 49mDelta
Sun 11/95:45 amDEN - DLH
1 stop4h 36mDelta
Deal found 10/28$343
This Delta deal was found by Cheapflights users on 10/28. 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.
Sun 11/165:10 amDLH - DEN
1 stop5h 53mDelta
Wed 11/195:45 amDEN - DLH
1 stop4h 36mDelta
Deal found 10/28$366
This Delta deal was found by Cheapflights users on 10/28. 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.
Tue 11/255:10 amDLH - DEN
1 stop5h 53mDelta
Tue 12/25:45 amDEN - DLH
1 stop4h 35mDelta
Deal found 10/28$368
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/183:03 pmDLH - DEN
1 stop9h 35mUnited Airlines
Sat 1/106:00 amDEN - DLH
1 stop7h 30mUnited Airlines
Deal found 10/28$387

Cheap 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$238
(Delta)

One-way from

$123
(Delta)

Popular in

July

Cheapest in

September

Average price

$338
Provider with most accurate pricing for Duluth Intl-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Duluth Intl-Denver Intl flights.
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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. 18% potential increase in price ($75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 October 28, 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

$238

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Wed 4/22

4:20 pm-10:29 pm

1 stop7h 09m

Denver Intl

Sat 4/25

6:10 am-10:57 am

1 stop3h 47m

$238

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 2/21

4:20 pm-8:03 pm

1 stop4h 43m

Denver Intl

Sat 2/28

6:10 am-11:07 am

1 stop3h 57m

$263

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 11/8

4:10 pm-7:30 pm

1 stop4h 20m

Denver Intl

Wed 11/12

4:18 pm-11:50 pm

1 stop6h 32m

$288

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 2/20

12:00 pm-3:35 pm

1 stop4h 35m

Denver Intl

Thu 2/26

6:10 am-11:07 am

1 stop3h 57m

$313

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 2/20

12:00 pm-3:35 pm

1 stop4h 35m

Denver Intl

Sat 2/28

6:10 am-11:07 am

1 stop3h 57m

$313

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 2/21

4:20 pm-8:03 pm

1 stop4h 43m

Denver Intl

Sun 3/1

6:10 am-11:07 am

1 stop3h 57m

$313

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 2/6

4:41 pm-8:07 pm

1 stop4h 26m

Denver Intl

Sat 2/7

11:17 am-4:01 pm

1 stop3h 44m

$328

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 2/21

4:20 pm-8:03 pm

1 stop4h 43m

Denver Intl

Mon 3/2

6:10 am-11:02 pm

1 stop15h 52m

$332

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Tue 2/24

8:05 am-12:55 pm

1 stop5h 50m

Denver Intl

Fri 2/27

2:20 pm-11:07 am

1 stop19h 47m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 18 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 October.
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 $81). 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.

How much does it cost to fly round-trip from Duluth to Denver?

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 October 28, 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
7,994 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,994 reviews
Delta
7.9
Good
7,994 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
9,000 reviews
Delta
7.9
Good
7,994 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Sun Country Air
6.9
Okay
335 reviews
Delta
7.9
Good
7,994 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 $238. There are 789 mi between Duluth and Denver.

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

    Sun Country Air, at $69, 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 79% 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 $81). 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
Westminster
Broomfield
Lakewood
Golden
Winter Park
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Central City
Manitou Springs
Fort Morgan
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

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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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$69Average$191FlexibilityNo cancel feeOn-time83%
DeltaCheapest$138Average$341FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$240Average$493FlexibilityNo cancel feeOn-time69%

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