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$153+ 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — DEN
Aug 24 — Aug 311
Sun 8/24
Sun 8/31
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 August 19, 2025.

Round-trip from

$263
(Delta)

One-way from

$153
(Delta)

Popular in

December

Cheapest in

September

Average price

$457
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. 5% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 19, 2025.

This Delta deal was found by Cheapflights users on 8/19. 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 10/47:50 amDLH - DEN
1 stop5h 57mDelta
Sat 10/114:16 pmDEN - DLH
1 stop5h 37mDelta
Deal found 8/19$263
This United Airlines deal was found by Cheapflights users on 8/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/189:45 amDLH - DEN
1 stop7h 50mUnited Airlines
Fri 10/241:25 pmDEN - DLH
1 stop7h 43mUnited Airlines
Deal found 8/19$268
This Delta deal was found by Cheapflights users on 8/18. 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 10/287:50 amDLH - DEN
1 stop5h 49mDelta
Fri 10/316:05 amDEN - DLH
1 stop4h 17mDelta
Deal found 8/18$277
This Delta deal was found by Cheapflights users on 8/17. 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.
Mon 9/15:10 amDLH - DEN
1 stop5h 45mDelta
Fri 9/54:00 pmDEN - DLH
1 stop5h 46mDelta
Deal found 8/17$361
This Delta deal was found by Cheapflights users on 8/19. 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.
Tue 10/217:50 amDLH - DEN
1 stop5h 49mDelta
Mon 10/276:05 amDEN - DLH
1 stop4h 17mDelta
Deal found 8/19$368
This United Airlines deal was found by Cheapflights users on 8/17. 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 10/2411:20 amDLH - DEN
1 stop6h 15mUnited Airlines
Mon 10/278:30 pmDEN - DLH
1 stop13h 07mUnited Airlines
Deal found 8/17$385
This Delta deal was found by Cheapflights users on 8/18. 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 10/1412:02 pmDLH - DEN
1 stop4h 40mDelta
Fri 10/176:55 pmDEN - DLH
1 stop3h 47mDelta
Deal found 8/18$393
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Thu 9/49:45 amDLH - DEN
1 stop7h 50mUnited Airlines
Mon 9/158:29 pmDEN - DLH
2 stops21h 01mUnited Airlines
Deal found 8/16$407
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Mon 9/159:45 amDLH - DEN
1 stop7h 50mUnited Airlines
Mon 9/227:10 pmDEN - DLH
1 stop14h 35mUnited Airlines
Deal found 8/18$415
This United Airlines deal was found by Cheapflights users on 8/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/219:45 amDLH - DEN
1 stop7h 50mUnited Airlines
Mon 10/276:00 pmDEN - DLH
2 stops15h 37mUnited Airlines
Deal found 8/19$432

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 August 19, 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 10/18

12:02 pm-3:42 pm

1 stop4h 40m

Denver Intl

Fri 10/24

6:55 pm-11:42 pm

1 stop3h 47m

$263

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Tue 10/28

7:50 am-12:39 pm

1 stop5h 49m

Denver Intl

Fri 10/31

6:05 am-11:22 am

1 stop4h 17m

$277

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 10/4

7:50 am-12:47 pm

1 stop5h 57m

Denver Intl

Sat 10/11

4:16 pm-10:53 pm

1 stop5h 37m

$293

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Mon 9/1

5:10 am-9:55 am

1 stop5h 45m

Denver Intl

Fri 9/5

4:00 pm-10:46 pm

1 stop5h 46m

$361

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Tue 10/21

5:18 am-10:00 am

1 stop5h 42m

Denver Intl

Mon 10/27

6:05 am-11:22 am

1 stop4h 17m

$368

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 10/24

11:20 am-4:35 pm

1 stop6h 15m

Denver Intl

Mon 10/27

8:30 pm-10:37 am

1 stop13h 07m

$385

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Tue 10/14

12:02 pm-3:42 pm

1 stop4h 40m

Denver Intl

Fri 10/17

6:55 pm-11:42 pm

1 stop3h 47m

$393

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 10/23

7:50 am-12:39 pm

1 stop5h 49m

Denver Intl

Mon 10/27

6:05 am-11:22 am

1 stop4h 17m

$393

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 9/4

9:45 am-4:35 pm

1 stop7h 50m

Denver Intl

Mon 9/15

8:29 pm-6:30 pm

2 stops21h 01m

$407

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Mon 9/15

9:45 am-4:35 pm

1 stop7h 50m

Denver Intl

Mon 9/22

7:10 pm-10:45 am

1 stop14h 35m

$415

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 18 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, 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 August 19, 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
7,981 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

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
8,922 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

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
333 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

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 $263, Delta can have you in Colorado from Duluth in 4h 40m. 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, 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 August 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$69Average$176FlexibilityNo cancel feeOn-time83%
DeltaCheapest$153Average$336FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$240Average$493FlexibilityNo cancel feeOn-time69%

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