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$211+ Cheap flights from Duluth (DLH) to Colorado

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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — DEN
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap 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 December 4, 2025.

This United Airlines deal was found by Cheapflights users on 12/4. 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 12/4$342
This Delta deal was found by Cheapflights users on 12/3. 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 12/134:24 pmDLH - DEN
1 stop4h 38mDelta
Thu 12/185:45 amDEN - DLH
1 stop4h 35mDelta
Deal found 12/3$358
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/67:55 amDLH - DEN
1 stop8h 45mUnited Airlines
Mon 12/86:00 amDEN - DLH
1 stop7h 22mUnited Airlines
Deal found 12/2$426
This Delta deal was found by Cheapflights users on 12/3. 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 12/145:00 amDLH - DEN
1 stop6h 07mDelta
Thu 12/185:45 amDEN - DLH
1 stop4h 35mDelta
Deal found 12/3$491
This Delta deal was found by Cheapflights users on 12/1. 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 12/175:00 amDLH - DEN
1 stop6h 07mDelta
Sun 12/215:53 pmDEN - DLH
1 stop3h 59mDelta
Deal found 12/1$512
This Delta deal was found by Cheapflights users on 12/2. 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
Mon 12/226:00 amDEN - DLH
1 stop4h 15mDelta
Deal found 12/2$553
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/177:55 amDLH - DEN
1 stop8h 43mUnited Airlines
Sun 12/217:45 amDEN - DLH
1 stop5h 43mUnited Airlines
Deal found 12/2$564
This United Airlines deal was found by Cheapflights users on 12/3. 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 12/132:57 pmDLH - DEN
2 stops26h 48mUnited Airlines
Thu 12/187:45 amDEN - DLH
1 stop5h 43mUnited Airlines
Deal found 12/3$582

Find flight deals from Duluth to Colorado

Keep the following information in mind while searching for Duluth to Colorado flight deals. Data was last updated December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$211
(Delta)

Popular in

March

Cheapest in

September

Average price

$280
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 Colorado
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($16 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 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 December 4, 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

Sat 1/24

11:56 am-4:43 pm

1 stop5h 47m

Denver Intl

Tue 1/27

5:49 pm-11:52 pm

1 stop5h 03m

$211

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

$288

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 2/21

4:18 pm-8:05 pm

1 stop4h 47m

Denver Intl

Sat 2/28

7:10 am-11:25 pm

1 stop15h 15m

$297

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 3/6

4:14 pm-8:05 pm

1 stop4h 51m

Denver Intl

Mon 3/9

6:20 pm-12:08 pm

2 stops16h 48m

$298

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sun 1/11

11:56 am-4:44 pm

1 stop5h 48m

Denver Intl

Wed 1/14

5:51 pm-11:52 pm

1 stop5h 01m

$314

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Wed 4/22

11:26 am-3:56 pm

1 stop5h 30m

Denver Intl

Fri 4/24

4:15 pm-9:57 pm

1 stop4h 42m

$327

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sun 1/18

11:56 am-2:00 pm

1 stop27h 04m

$245

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 1/2

11:55 am-10:53 pm

1 stop11h 58m

$287

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 1/3

11:55 am-10:50 pm

1 stop11h 55m

$295

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sun 1/18

3:05 pm-9:54 am

2 stops19h 49m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

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 December 4, 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
8,010 reviews

Crew

8.5

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Comfort

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
8,010 reviews
Delta
7.9
Good
8,010 reviews

Crew

8.5

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Comfort

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
9,066 reviews
Delta
7.9
Good
8,010 reviews

Crew

8.5

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Comfort

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
8,010 reviews

Crew

8.5

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Comfort

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 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 $211, Delta can have you in Colorado from Duluth in 5h 47m. 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$69Average$191FlexibilityNo cancel feeOn-time83%
DeltaCheapest$138Average$337FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$240Average$383FlexibilityNo cancel feeOn-time69%

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