HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Colorado

$198+ 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — DEN
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Duluth to Colorado with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$238
(Delta)

One-way from

$198
(United Airlines)

Popular in

July

Cheapest in

September

Average price

$338
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. 18% potential increase in price ($75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 29, 2025.

This United Airlines deal was found by Cheapflights users on 10/27. 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 11/113:06 pmDLH - DEN
1 stop7h 43mUnited Airlines
Sat 11/156:00 amDEN - DLH
1 stop7h 31mUnited Airlines
Deal found 10/27$248
This Delta deal was found by Cheapflights users on 10/29. 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 11/812:02 pmDLH - DEN
1 stop4h 40mDelta
Wed 11/121:57 pmDEN - DLH
1 stop4h 33mDelta
Deal found 10/29$298
This Delta deal was found by Cheapflights users on 10/26. 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 11/145:10 amDLH - DEN
1 stop5h 53mDelta
Sun 11/165:45 amDEN - DLH
1 stop4h 36mDelta
Deal found 10/26$318
This Delta deal was found by Cheapflights users on 10/27. 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 10/307:50 amDLH - DEN
1 stop5h 49mDelta
Tue 11/46:55 pmDEN - DLH
1 stop3h 47mDelta
Deal found 10/27$323
This Delta deal was found by Cheapflights users on 10/28. 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 11/125:45 amDEN - DLH
1 stop4h 36mDelta
Deal found 10/28$338
This Delta deal was found by Cheapflights users on 10/28. 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 11/27:50 amDLH - DEN
1 stop5h 49mDelta
Sun 11/95:45 amDEN - DLH
1 stop4h 36mDelta
Deal found 10/28$343
This Delta deal was found by Cheapflights users on 10/29. 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 10/314:10 pmDLH - DEN
1 stop4h 20mDelta
Sun 11/26:55 pmDEN - DLH
1 stop3h 47mDelta
Deal found 10/29$358
This Delta deal was found by Cheapflights users on 10/28. 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 11/165:10 amDLH - DEN
1 stop5h 53mDelta
Wed 11/195:45 amDEN - DLH
1 stop4h 36mDelta
Deal found 10/28$366
This Delta deal was found by Cheapflights users on 10/28. 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 11/255:10 amDLH - DEN
1 stop5h 53mDelta
Tue 12/25:45 amDEN - DLH
1 stop4h 35mDelta
Deal found 10/28$368
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/183:03 pmDLH - DEN
1 stop9h 35mUnited Airlines
Sat 1/106:00 amDEN - DLH
1 stop7h 30mUnited Airlines
Deal found 10/28$387

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 October 29, 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

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

$238

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Wed 4/22

4:20 pm-10:29 pm

1 stop7h 09m

Denver Intl

Sat 4/25

6:10 am-10:57 am

1 stop3h 47m

$238

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 2/21

4:20 pm-8:03 pm

1 stop4h 43m

Denver Intl

Thu 2/26

6:10 am-11:07 am

1 stop3h 57m

$238

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 2/21

4:20 pm-8:03 pm

1 stop4h 43m

Denver Intl

Sat 2/28

6:10 am-11:07 am

1 stop3h 57m

$263

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 11/8

12:02 pm-3:42 pm

1 stop4h 40m

Denver Intl

Wed 11/12

1:57 pm-7:30 pm

1 stop4h 33m

$298

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 2/20

12:00 pm-3:35 pm

1 stop4h 35m

Denver Intl

Thu 2/26

6:10 am-11:07 am

1 stop3h 57m

$313

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 2/21

4:20 pm-8:03 pm

1 stop4h 43m

Denver Intl

Mon 3/2

6:10 am-11:02 pm

1 stop15h 52m

$332

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Tue 2/24

8:05 am-12:55 pm

1 stop5h 50m

Denver Intl

Fri 2/27

2:20 pm-11:07 am

1 stop19h 47m

$332

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Wed 2/18

12:00 pm-8:03 pm

1 stop9h 03m

Denver Intl

Tue 3/3

6:10 am-11:07 am

1 stop3h 57m

$332

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Tue 2/24

5:10 am-7:15 pm

2 stops15h 05m

Denver Intl

Sat 2/28

6:10 am-11:07 am

1 stop3h 57m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 12 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, April is the cheapest month in which you can book a flight from Duluth to Colorado (average of $81). 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 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 October 29, 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
7.9
Good
7,992 reviews

Comfort

7.9

Overall

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,992 reviews
Delta
7.9
Good
7,992 reviews

Comfort

7.9

Overall

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
9,001 reviews
Delta
7.9
Good
7,992 reviews

Comfort

7.9

Overall

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Sun Country Air
6.9
Okay
335 reviews
Delta
7.9
Good
7,992 reviews

Comfort

7.9

Overall

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 $238, 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 $81). 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

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.
Minneapolis to Dallas/Fort Worth flights
Minneapolis to Las Vegas flights
Minneapolis to Sky Harbor Intl flights
Minneapolis to John F Kennedy Intl flights
Minneapolis to Denver flights
Minneapolis to Orlando flights
Minneapolis to Newark flights
Minneapolis to LaGuardia flights
Minneapolis to Los Angeles flights
Minneapolis to Miami flights
Minneapolis to Seattle flights
Minneapolis to O'Hare Intl flights
Minneapolis to Tampa flights
Minneapolis to Fort Myers flights
Minneapolis to Honolulu flights
Minneapolis to Midway flights
Minneapolis to Fort Lauderdale flights
Minneapolis to Hobby flights
Minneapolis to San Francisco flights
Minneapolis to San Diego flights
Minneapolis to Baltimore flights
Minneapolis to New Orleans flights
Minneapolis to George Bush Intcntl flights
Minneapolis to Dulles Intl flights
Minneapolis to Reagan-National flights
Minneapolis to Austin flights
Minneapolis to Atlanta flights
Minneapolis to Phoenix-Mesa Gateway flights
Minneapolis to Boston flights
Minneapolis to Nashville flights
Minneapolis to Portland flights
Minneapolis to Ontario flights
Minneapolis to Sarasota flights
Minneapolis to Detroit flights
Minneapolis to Charlotte flights
Minneapolis to Kahului flights
Minneapolis to Salt Lake City flights
Minneapolis to Philadelphia flights
Minneapolis to Love Field flights
Minneapolis to Palm Springs flights
Minneapolis to San Antonio flights
Minneapolis to Santa Ana flights
Minneapolis to Raleigh flights
Minneapolis to Charleston flights
Minneapolis to Jacksonville flights
Minneapolis to Tucson flights
Minneapolis to Kailua-Kona flights
Minneapolis to Lihue flights
Minneapolis to Indianapolis flights
Minneapolis to St. Louis flights

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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$69Average$191FlexibilityNo cancel feeOn-time83%
DeltaCheapest$138Average$341FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$240Average$493FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.