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Colorado

$144+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — DEN
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
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 March 22, 2026.

This United Airlines deal was found by Cheapflights users on 3/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:44 pm
DLH
-
DEN
1 stop6h 06m
United Airlines
Wed 5/274:45 pm
DEN
-
DLH
1 stop5h 23m
United Airlines
Deal found 3/20$266
This United Airlines deal was found by Cheapflights users on 3/18. 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 4/75:00 am
DLH
-
DEN
1 stop8h 45m
United Airlines
Sat 4/113:20 pm
DEN
-
DLH
1 stop5h 46m
United Airlines
Deal found 3/18$308
This Delta deal was found by Cheapflights users on 3/20. 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 6/275:10 am
DLH
-
DEN
1 stop4h 09m
Delta
Sat 7/49:00 am
DEN
-
DLH
1 stop5h 19m
Delta
Deal found 3/20$318
This Delta deal was found by Cheapflights users on 3/20. 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.
Tue 4/74:32 pm
DLH
-
DEN
1 stop4h 19m
Delta
Sat 4/116:20 am
DEN
-
DLH
1 stop4h 36m
Delta
Deal found 3/20$323
This Delta deal was found by Cheapflights users on 3/18. 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 5/24:29 pm
DLH
-
DEN
1 stop5h 14m
Delta
Tue 5/56:00 pm
DEN
-
DLH
1 stop3h 46m
Delta
Deal found 3/18$328
This Delta deal was found by Cheapflights users on 3/19. 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 7/255:10 am
DLH
-
DEN
1 stop4h 09m
Delta
Tue 7/286:55 pm
DEN
-
DLH
1 stop3h 43m
Delta
Deal found 3/19$335
This United Airlines deal was found by Cheapflights users on 3/17. 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 5/22:57 pm
DLH
-
DEN
1 stop5h 43m
United Airlines
Tue 5/56:00 am
DEN
-
DLH
1 stop7h 22m
United Airlines
Deal found 3/17$336
This Delta deal was found by Cheapflights users on 3/20. 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.
Thu 8/204:20 pm
DLH
-
DEN
1 stop7h 09m
Delta
Sun 8/236:10 am
DEN
-
DLH
1 stop3h 47m
Delta
Deal found 3/20$337
This Delta deal was found by Cheapflights users on 3/18. 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 9/68:05 am
DLH
-
DEN
1 stop5h 48m
Delta
Mon 9/146:55 pm
DEN
-
DLH
1 stop3h 43m
Delta
Deal found 3/18$347
This Delta deal was found by Cheapflights users on 3/18. 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 9/84:20 pm
DLH
-
DEN
1 stop7h 09m
Delta
Fri 9/116:55 pm
DEN
-
DLH
1 stop3h 43m
Delta
Deal found 3/18$364
This United Airlines deal was found by Cheapflights users on 3/17. 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.
Sun 7/126:25 pm
DLH
-
DEN
1 stop7h 33m
United Airlines
Tue 7/144:40 pm
DEN
-
DLH
1 stop5h 58m
United Airlines
Deal found 3/17$374

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 March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$266
(United Airlines)

One-way from

$144
(United Airlines)

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 Colorado
Search Deals
One-way flight from Duluth Intl to Colorado
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($26 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 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 March 22, 2026.
Use the filters below to find and compare flights from Duluth to Colorado that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 5/2

12:47 pm-3:36 pm

1 stop3h 49m

Denver Intl

Tue 5/5

6:00 pm-10:46 pm

1 stop3h 46m

$368

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 4/16

6:57 pm-11:59 pm

1 stop6h 02m

Denver Intl

Wed 4/22

6:00 am-2:27 pm

1 stop7h 27m

$398

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 4/16

6:57 pm-11:59 pm

1 stop6h 02m

Denver Intl

Sun 4/19

6:00 am-2:27 pm

1 stop7h 27m

$408

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Wed 4/1

3:08 pm-7:40 pm

1 stop5h 32m

Denver Intl

Sun 4/5

4:35 pm-12:29 am

1 stop6h 54m

$415

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 4/3

11:19 am-4:00 pm

1 stop5h 41m

Denver Intl

Sun 4/5

4:35 pm-12:29 am

1 stop6h 54m

$417

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Tue 5/5

5:00 am-12:45 pm

1 stop8h 45m

Denver Intl

Sat 5/9

9:20 pm-12:42 am

1 stop26h 22m

$470

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 6/19

6:10 pm-12:53 am

1 stop7h 43m

Denver Intl

Sun 6/21

9:05 pm-11:08 pm

1 stop25h 03m

$525
Cheapest one-way

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 4/25

3:08 pm-7:40 pm

1 stop5h 32m

$144
Quickest one-way

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 6/6

5:15 am-8:17 am

1 stop4h 02m

$176

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 6/19

4:20 pm-7:58 pm

1 stop4h 38m

$178

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

Showing 1-10 of 15 resultsSorted by cheapest first
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, December is the cheapest month in which you can book a flight from Duluth to Colorado (average of $92). Flying from Duluth to Colorado 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.

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 March 22, 2026.
Get a feel of what it's like to fly with Delta and United Airlines 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
8,314 reviews

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.8

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
8,314 reviews
Delta
7.9
Good
8,314 reviews

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.8

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
9,455 reviews
Delta
7.9
Good
8,314 reviews

Food

7.2

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.8

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 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 $368, Delta can have you in Colorado from Duluth in 3h 49m. There are 789 mi between Duluth and Colorado. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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, December is the cheapest month in which you can book a flight from Duluth to Colorado (average of $92). Flying from Duluth to Colorado 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

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Top 2 airlines flying from Duluth to Colorado

Discover the top 2 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 March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$123Average$329FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$238Average$397FlexibilityNo cancel feeOn-time69%

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