How long is the flight from Duluth to Colorado?

For as low as $278, Delta can have you in Colorado from Duluth in 7h 09m. There are 789 mi between Duluth and Colorado.

In terms of precipitation, rainfall in Colorado ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Colorado when rainfall is around 0.5 in.

If weather is an important factor for your trip to Colorado, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

What are the most popular airlines that fly from Duluth to Colorado?

Consider Delta, United Airlines or Sun Country Air when booking your flight. These represent the most popular airlines when flying from Duluth to Colorado.

What is the cheapest time of day to fly from DLH to CO?

When flying from Duluth to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

$146+ Flights from Duluth to Colorado

Q: How much does it cost to fly round-trip from Duluth to Colorado?

Airfare is above average for this route at the moment. Duluth to Colorado flights typically cost between $136 and $221 in April. The cheapest round-trip price found within the last 3 days was $278 on Delta (Apr 16-Apr 22).

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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 17, 2025.

Sat 12/2011:55 amDLH - DEN

1 stop5h 49mDelta

Mon 12/225:53 pmDEN - DLH

1 stop3h 59mDelta

Deal found 12/16

$614

Tue 12/162:57 pmDLH - DEN

1 stop6h 07mUnited Airlines

Fri 12/193:20 pmDEN - DLH

1 stop6h 35mUnited Airlines

Deal found 12/15

$746

Sat 12/207:50 amDLH - DEN

1 stop8h 55mUnited Airlines

Mon 12/225:35 pmDEN - DLH

2 stops28h 20mUnited Airlines

Deal found 12/16

$794

Tue 12/165:00 amDLH - DEN

2 stops10h 58mDelta

Fri 12/195:45 amDEN - DLH

1 stop4h 35mDelta

Deal found 12/15

$1,197

Best flights from Duluth to Colorado
Discover carefully curated flight deals from Duluth to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 17, 2025.

Thu 4/164:20 pmDLH - DEN

1 stop7h 09mDelta

Wed 4/226:10 amDEN - DLH

1 stop3h 47mDelta

Deal found 12/15

$278

Wed 4/2211:26 amDLH - DEN

1 stop5h 30mUnited Airlines

Fri 4/244:15 pmDEN - DLH

1 stop4h 42mUnited Airlines

Deal found 12/15

$314

Tue 1/64:24 pmDLH - DEN

1 stop4h 41mDelta

Wed 1/145:51 pmDEN - DLH

1 stop5h 01mDelta

Deal found 12/15

$288

Fri 2/203:19 pmDLH - DEN

1 stop7h 46mUnited Airlines

Tue 2/243:20 pmDEN - DLH

1 stop5h 39mUnited Airlines

Deal found 12/14

$316

Wed 5/275:10 amDLH - DEN

1 stop4h 09mDelta

Sat 5/306:10 amDEN - DLH

1 stop3h 47mDelta

Deal found 12/17

$293

Sat 2/214:18 pmDLH - DEN

1 stop4h 47mDelta

Sat 2/285:49 pmDEN - DLH

1 stop4h 36mDelta

Deal found 12/16

$293

Wed 1/145:00 amDLH - DEN

1 stop6h 31mDelta

Sun 1/185:51 pmDEN - DLH

1 stop5h 01mDelta

Deal found 12/15

$337

Sat 5/3012:00 pmDLH - DEN

1 stop4h 31mDelta

Wed 6/36:55 pmDEN - DLH

1 stop3h 43mDelta

Deal found 12/16

$337

Sat 5/3012:00 pmDLH - DEN

1 stop4h 31mDelta

Tue 6/26:10 amDEN - DLH

1 stop3h 47mDelta

Deal found 12/15

$337

Last-minute flights from Duluth to Colorado
Discover last-minute flight deals from Duluth to Colorado. Data last updated December 17, 2025 and is based on user searches.

Thu 1/17:50 amDLH - DEN

1 stop16h 48mUnited Airlines

Mon 1/56:00 amDEN - DLH

1 stop7h 28mUnited Airlines

Deal found 12/17

$537

Tue 1/64:24 pmDLH - DEN

1 stop4h 41mDelta

Wed 1/145:51 pmDEN - DLH

1 stop5h 01mDelta

Deal found 12/15

$288

Tue 1/63:05 pmDLH - DEN

2 stops28h 02mUnited Airlines

Wed 1/146:00 amDEN - DLH

1 stop7h 30mUnited Airlines

Deal found 12/15

$463

Tue 1/63:05 pmDLH - DEN

1 stop6h 08mUnited Airlines

Sun 1/116:00 amDEN - DLH

1 stop7h 30mUnited Airlines

Deal found 12/17

$521

Wed 1/145:00 amDLH - DEN

1 stop6h 31mDelta

Sun 1/185:51 pmDEN - DLH

1 stop5h 01mDelta

Deal found 12/15

$337

Wed 1/143:05 pmDLH - DEN

1 stop6h 08mUnited Airlines

Sun 1/185:42 pmDEN - DLH

2 stops19h 48mUnited Airlines

Deal found 12/15

$502

Sat 1/243:05 pmDLH - DEN

1 stop7h 54mUnited Airlines

Tue 1/276:00 amDEN - DLH

1 stop7h 30mUnited Airlines

Deal found 12/14

$374

One-way flights from Duluth to Colorado
Search for one-way flight options from Duluth to Colorado. Find affordable one-way fares based on user searches. Data last updated December 17, 2025.

Wed 1/1411:56 amDLH - DEN

1 stop5h 48mDelta

Deal found 12/15

$146

Mon 12/225:00 amDLH - DEN

1 stop6h 29mDelta

Deal found 12/14

$283

Wed 1/143:05 pmDLH - DEN

2 stops17h 00mUnited Airlines

Deal found 12/15

$346

Mon 12/293:03 pmDLH - DEN

1 stop22h 51mUnited Airlines

Deal found 12/15

$507

Mon 12/223:03 pmDLH - DEN

2 stops24h 45mUnited Airlines

Deal found 12/15

$588

Find flight deals from Duluth to Colorado

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$278 (Delta)
One-way from	$146 (Delta)
Popular in	March
Cheapest in	September
Average price	$170

Provider with most accurate pricing for Duluth Intl-Denver Intl flight deals.

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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. 19% potential increase in price ($83 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($17 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

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

$278

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Tue 1/6

4:24 pm-8:05 pm

1 stop4h 41m

Denver Intl

Wed 1/14

5:51 pm-11:52 pm

1 stop5h 01m

$288

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Wed 5/27

5:10 am-8:19 am

1 stop4h 09m

Denver Intl

Sat 5/30

6:10 am-10:57 am

1 stop3h 47m

$293

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 2/21

4:18 pm-8:05 pm

1 stop4h 47m

Denver Intl

Sat 2/28

5:49 pm-11:25 pm

1 stop4h 36m

$293

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

$314

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 2/20

3:19 pm-10:05 pm

1 stop7h 46m

Denver Intl

Tue 2/24

3:20 pm-9:59 pm

1 stop5h 39m

$316

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Wed 1/14

5:00 am-10:31 am

1 stop6h 31m

Denver Intl

Sun 1/18

5:51 pm-11:52 pm

1 stop5h 01m

$337

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 5/30

12:00 pm-3:31 pm

1 stop4h 31m

Denver Intl

Wed 6/3

6:55 pm-11:38 pm

1 stop3h 43m

$337

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 5/30

12:00 pm-3:31 pm

1 stop4h 31m

Denver Intl

Tue 6/2

6:10 am-10:57 am

1 stop3h 47m

$337

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Wed 1/14

11:56 am-4:44 pm

1 stop5h 48m

$146

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 14 results

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 $86). 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 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

8,008 reviews

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

8,008 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,092 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Sun Country Air

6.9

Okay

333 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

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 7h 09m. 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 $86). 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

Browse thousands of different options on Cheapflights for your next trip

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Complete your trip

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Top 3 airlines flying from Duluth to Colorado

Airline	Cheapest	Average	Flexibility	On-time
Sun Country Air	Cheapest$49	Average$191	FlexibilityNo cancel fee	On-time83%
Delta	Cheapest$153	Average$336	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$240	Average$382	FlexibilityNo cancel fee	On-time69%

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$146+ 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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Duluth to Colorado with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Duluth to Colorado

Cheapest flights from Duluth to ColoradoExplore 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 17, 2025.

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 17, 2025.

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 17, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Duluth to Colorado that are best for you.

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.

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?

How much does it cost to fly round-trip from Duluth to Colorado?

Reviews of airlines servicing Colorado

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.

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?

How long is the flight from Duluth to Colorado?

Can I find deals for flights from Duluth to Colorado that include hotel bookings?

How can I find direct flights from Duluth to Colorado?

Can I find deals for business class flights from Duluth to Colorado?

What is the cheapest month to book a flight from Duluth to Colorado?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Duluth to Colorado

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Duluth to Colorado

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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 17, 2025.