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$133+ 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — DEN
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$232
(United Airlines)

One-way from

$133
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$153
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. 8% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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 10/3111:14 amDLH - DEN
1 stop5h 30mUnited Airlines
Tue 11/46:00 amDEN - DLH
1 stop7h 31mUnited Airlines
Deal found 9/15$232
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/111:20 amDLH - DEN
1 stop7h 35mUnited Airlines
Sun 10/56:00 amDEN - DLH
1 stop7h 32mUnited Airlines
Deal found 9/15$273
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/73:07 pmDLH - DEN
1 stop7h 53mUnited Airlines
Tue 10/142:45 pmDEN - DLH
1 stop6h 23mUnited Airlines
Deal found 9/16$296
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Fri 10/38:00 amDLH - DEN
1 stop5h 40mUnited Airlines
Sun 10/56:00 amDEN - DLH
1 stop7h 32mUnited Airlines
Deal found 9/17$318
This Delta deal was found by Cheapflights users on 9/16. 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 10/410:50 amDLH - DEN
1 stop5h 54mDelta
Sat 10/116:05 amDEN - DLH
1 stop4h 17mDelta
Deal found 9/16$327
This Delta deal was found by Cheapflights users on 9/17. 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 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 11/124:18 pmDEN - DLH
1 stop6h 32mDelta
Deal found 9/17$372
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/49:45 amDLH - DEN
1 stop7h 50mUnited Airlines
Sat 10/119:00 pmDEN - DLH
2 stops20h 37mUnited Airlines
Deal found 9/17$402

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 September 17, 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

Fri 10/31

11:14 am-3:44 pm

1 stop5h 30m

Denver Intl

Tue 11/4

6:00 am-2:31 pm

1 stop7h 31m

$232

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 11/1

4:10 pm-7:30 pm

1 stop4h 20m

Denver Intl

Wed 11/5

4:16 pm-11:42 pm

1 stop6h 26m

$232

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 10/31

10:50 am-3:41 pm

1 stop5h 51m

Denver Intl

Tue 11/4

4:16 pm-11:42 pm

1 stop6h 26m

$232

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Wed 10/1

11:20 am-5:55 pm

1 stop7h 35m

Denver Intl

Sun 10/5

6:00 am-2:32 pm

1 stop7h 32m

$273

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 10/3

8:00 am-12:40 pm

1 stop5h 40m

Denver Intl

Sun 10/5

6:00 am-2:32 pm

1 stop7h 32m

$318

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 11/7

12:02 pm-3:42 pm

1 stop4h 40m

Denver Intl

Wed 11/12

4:18 pm-11:50 pm

1 stop6h 32m

$372

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 12/18

7:50 am-3:52 pm

1 stop9h 02m

Denver Intl

Sat 1/10

3:15 pm-9:59 pm

1 stop5h 44m

$417

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 3/13

8:05 am-12:55 pm

1 stop5h 50m

Denver Intl

Tue 3/17

6:10 am-11:07 am

1 stop3h 57m

$417

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 10/24

9:45 am-4:35 pm

1 stop7h 50m

$133

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Tue 9/23

3:10 pm-8:12 pm

1 stop6h 02m

$248

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

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, October is the cheapest month in which you can book a flight from Duluth to Colorado (average of $197). Flying from Duluth to Colorado in March is currently the most expensive (average of $278). 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 September 17, 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
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Sun Country Air
6.9
Okay
330 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 $232, United Airlines can have you in Colorado from Duluth in 4h 20m. 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, October is the cheapest month in which you can book a flight from Duluth to Colorado (average of $197). Flying from Duluth to Colorado in March is currently the most expensive (average of $278). 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$69Average$191FlexibilityNo cancel feeOn-time83%
DeltaCheapest$153Average$341FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$240Average$426FlexibilityNo cancel feeOn-time69%

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