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Colorado

$152+ 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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — DEN
Mar 11 — Mar 181
Wed 3/11
Wed 3/18
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 February 9, 2026.

This Delta deal was found by Cheapflights users on 2/8. 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.
Wed 4/112:37 pm
DLH
-
DEN
1 stop4h 23m
Delta
Wed 4/85:06 pm
DEN
-
DLH
1 stop4h 41m
Delta
Deal found 2/8$290
This United Airlines deal was found by Cheapflights users on 2/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:10 pm
DLH
-
DEN
1 stop5h 53m
United Airlines
Tue 11/34:15 pm
DEN
-
DLH
1 stop7h 28m
United Airlines
Deal found 2/8$328
This Delta deal was found by Cheapflights users on 2/8. 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.
Wed 4/112:37 pm
DLH
-
DEN
1 stop4h 23m
Delta
Thu 4/96:20 am
DEN
-
DLH
1 stop4h 36m
Delta
Deal found 2/8$339
This United Airlines deal was found by Cheapflights users on 2/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/97:40 am
DLH
-
DEN
1 stop8h 11m
United Airlines
Sun 2/153:20 pm
DEN
-
DLH
1 stop5h 39m
United Airlines
Deal found 2/8$343
This Delta deal was found by Cheapflights users on 2/6. 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.
Wed 5/135:10 am
DLH
-
DEN
1 stop3h 53m
Delta
Sun 5/176:00 am
DEN
-
DLH
1 stop3h 57m
Delta
Deal found 2/6$353
This United Airlines deal was found by Cheapflights users on 2/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/93:05 pm
DLH
-
DEN
1 stop6h 08m
United Airlines
Sat 2/141:30 pm
DEN
-
DLH
1 stop7h 29m
United Airlines
Deal found 2/8$385
This United Airlines deal was found by Cheapflights users on 2/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:43 pm
DLH
-
DEN
1 stop6h 13m
United Airlines
Mon 3/98:23 pm
DEN
-
DLH
1 stop13h 20m
United Airlines
Deal found 2/6$410
This United Airlines deal was found by Cheapflights users on 2/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/143:07 pm
DLH
-
DEN
1 stop5h 41m
United Airlines
Wed 3/187:45 am
DEN
-
DLH
1 stop5h 47m
United Airlines
Deal found 2/5$415
This Delta deal was found by Cheapflights users on 2/5. 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.
Sat 2/214:18 pm
DLH
-
DEN
1 stop4h 47m
Delta
Sat 2/287:10 am
DEN
-
DLH
1 stop7h 25m
Delta
Deal found 2/5$423
This United Airlines deal was found by Cheapflights users on 2/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:10 pm
DLH
-
DEN
1 stop7h 43m
United Airlines
Sun 7/56:00 am
DEN
-
DLH
1 stop17h 43m
United Airlines
Deal found 2/9$425
This United Airlines deal was found by Cheapflights users on 2/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2011:20 am
DLH
-
DEN
1 stop6h 16m
United Airlines
Fri 2/276:00 am
DEN
-
DLH
1 stop7h 37m
United Airlines
Deal found 2/7$432

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 February 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$278
(Delta)

One-way from

$152
(United Airlines)

Popular in

March

Cheapest in

September

Average price

$367
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. 23% potential increase in price ($100 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 9, 2026.
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 4/4

4:32 pm-7:51 pm

1 stop4h 19m

Denver Intl

Wed 4/8

5:06 pm-10:47 pm

1 stop4h 41m

$278

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 4/4

8:04 am-2:08 pm

1 stop7h 04m

Denver Intl

Fri 4/10

6:12 pm-10:47 pm

1 stop3h 35m

$290

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 4/16

6:42 pm-11:44 pm

1 stop6h 02m

Denver Intl

Wed 4/22

6:00 am-2:27 pm

1 stop7h 27m

$328

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Wed 4/1

12:37 pm-4:00 pm

1 stop4h 23m

Denver Intl

Thu 4/9

6:20 am-11:56 am

1 stop4h 36m

$339

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Wed 5/13

5:10 am-8:03 am

1 stop3h 53m

Denver Intl

Sun 5/17

6:00 am-10:57 am

1 stop3h 57m

$353

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 3/5

6:43 pm-11:56 pm

1 stop6h 13m

Denver Intl

Mon 3/9

8:23 pm-10:43 am

1 stop13h 20m

$410

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 3/14

3:07 pm-7:48 pm

1 stop5h 41m

Denver Intl

Wed 3/18

7:45 am-2:32 pm

1 stop5h 47m

$415

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-3:35 pm

1 stop7h 25m

$423

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 7/3

6:10 pm-12:53 am

1 stop7h 43m

Denver Intl

Sun 7/5

6:00 am-12:43 am

1 stop17h 43m

$425

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Mon 3/9

6:43 pm-11:30 pm

1 stop5h 47m

Denver Intl

Mon 3/16

8:23 pm-10:43 am

1 stop13h 20m

$425

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 11 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, 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 November is currently the most expensive (average of $273). 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 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 February 9, 2026.
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
8,174 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Food

7.2

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
8,174 reviews
Delta
7.9
Good
8,174 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Food

7.2

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
9,259 reviews
Delta
7.9
Good
8,174 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Food

7.2

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
6.8
Okay
343 reviews
Delta
7.9
Good
8,174 reviews

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Food

7.2

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 $278, Delta can have you in Colorado from Duluth in 4h 19m. 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 November is currently the most expensive (average of $273). 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 February 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$49Average$191FlexibilityNo cancel feeOn-time83%
DeltaCheapest$123Average$329FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$238Average$383FlexibilityNo cancel feeOn-time69%

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