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$159+ Cheap flights from Duluth (DLH) to Colorado

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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — DEN
Dec 23 — Dec 301
Tue 12/23
Tue 12/30
1 adult, Economy
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Cheap flight deals from Duluth to Colorado

Keep the following information in mind while searching for Duluth to Colorado flight deals. Data was last updated November 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$265
(Delta)

One-way from

$159
(Delta)

Popular in

March

Cheapest in

September

Average price

$300
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 Colorado
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One-way flight from Duluth Intl to Colorado
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Highest demand for flights based on searches. 15% potential increase in price ($64 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Duluth to Colorado

Cheapest flights from Duluth to Colorado
Explore the most affordable flight options available from Duluth to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 23, 2025.

This Delta deal was found by Cheapflights users on 11/20. 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 12/612:01 pmDLH - DEN
1 stop4h 55mDelta
Wed 12/105:45 amDEN - DLH
1 stop4h 35mDelta
Deal found 11/20$268
This Delta deal was found by Cheapflights users on 11/22. 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 12/94:24 pmDLH - DEN
1 stop4h 38mDelta
Sat 12/135:45 amDEN - DLH
1 stop17h 14mDelta
Deal found 11/22$352
This United Airlines deal was found by Cheapflights users on 11/22. 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 stop5h 43mUnited Airlines
Sat 1/106:00 amDEN - DLH
1 stop7h 30mUnited Airlines
Deal found 11/22$353
This Delta deal was found by Cheapflights users on 11/22. 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.
Wed 11/265:10 amDLH - DEN
1 stop5h 53mDelta
Sat 11/295:45 amDEN - DLH
1 stop4h 36mDelta
Deal found 11/22$388
This United Airlines deal was found by Cheapflights users on 11/21. 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.
Wed 11/263:06 pmDLH - DEN
1 stop7h 43mUnited Airlines
Sat 11/296:00 amDEN - DLH
1 stop7h 31mUnited Airlines
Deal found 11/21$413

Cheapflights Fare Finder

 
Customize your flight search to find flights from Duluth to Colorado 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 November 23, 2025.
Use the filters below to find and compare flights from Duluth to Colorado that are best for you.

Fly from

Duluth

Fly to

Colorado

Route

Depart

Return

Price

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Tue 1/6

11:56 am-4:49 pm

1 stop5h 53m

Denver Intl

Sat 1/10

11:31 am-7:35 pm

1 stop7h 04m

$265

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 12/6

12:01 pm-3:56 pm

1 stop4h 55m

Denver Intl

Wed 12/10

5:45 am-11:20 am

1 stop4h 35m

$268

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

$300

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Mon 1/19

11:56 am-4:41 pm

1 stop5h 45m

Denver Intl

Fri 1/23

5:49 pm-11:52 pm

1 stop5h 03m

$311

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 2/21

4:18 pm-8:07 pm

1 stop4h 49m

Denver Intl

Sat 2/28

7:10 am-11:27 pm

1 stop15h 17m

$332

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Tue 12/9

4:24 pm-8:02 pm

1 stop4h 38m

Denver Intl

Sat 12/13

5:45 am-11:59 pm

1 stop17h 14m

$352

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 12/18

3:03 pm-7:46 pm

1 stop5h 43m

Denver Intl

Sat 1/10

6:00 am-2:30 pm

1 stop7h 30m

$353

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 5/14

4:20 pm-10:29 pm

1 stop7h 09m

$159

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 12/6

2:57 pm-9:56 pm

1 stop7h 59m

$208

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 12/6

4:24 pm-8:02 pm

1 stop4h 38m

$208

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 12 results
1
2

Best time to book a flight from Duluth to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado 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 Colorado

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

Currently, April is the cheapest month in which you can book a flight from Duluth to Colorado (average of $84). Flying from Duluth to Colorado 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 Colorado?

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated November 23, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and Sun Country Air from Duluth to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,999 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

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
7,999 reviews
Delta
7.9
Good
7,999 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

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
9,033 reviews
Delta
7.9
Good
7,999 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

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
334 reviews
Delta
7.9
Good
7,999 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

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 Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Duluth to Colorado?

    Duluth Intl (DLH) is the airport you will fly out of if you book a flight from Duluth to Colorado. It is only a 5.8 mi journey to Duluth Intl (DLH) from Duluth’s city center.

  • How long is the flight from Duluth to Colorado?

    For as low as $265, Delta can have you in Colorado from Duluth in 5h 53m. There are 789 mi between Duluth and Colorado.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Duluth to Colorado (average of $84). Flying from Duluth to Colorado 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

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Top 3 airlines flying from Duluth to Colorado

Discover the top 3 airlines that operate flights from Duluth to Colorado. 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 November 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$69Average$191FlexibilityNo cancel feeOn-time83%
DeltaCheapest$138Average$338FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$240Average$493FlexibilityNo cancel feeOn-time69%

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