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$258+ Cheap flights from Colorado to Duluth (DLH)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DLH
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheap flight deals from Colorado to Duluth

Keep the following information in mind while searching for Colorado to Duluth flight deals. Data was last updated March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$258
(Delta)

Popular in

December

Cheapest in

November

Average price

$340
Provider with most accurate pricing for Denver Intl-Duluth Intl flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Duluth Intl flights.
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From Colorado to Duluth Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Colorado to Duluth

Cheapest flights from Colorado to Duluth
Explore the most affordable flight options available from Colorado to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.

This Delta deal was found by Cheapflights users on 3/30. 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 6/46:44 pmDEN - DLH
1 stop3h 54mDelta
Sat 6/74:16 pmDLH - DEN
1 stop4h 42mDelta
Deal found 3/30$258
This United Airlines deal was found by Cheapflights users on 3/30. 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 9/137:30 amCOS - DLH
2 stops10h 00mUnited Airlines
Tue 9/167:53 amDLH - COS
2 stops9h 50mUnited Airlines
Deal found 3/30$379
This United deal was found by Cheapflights users on 3/30. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/118:00 amDEN - DLH
2 stops29h 30mUnited Airlines
Sat 4/193:05 pmDLH - DEN
1 stop5h 45mUnited Airlines
Deal found 3/30$453
This Delta deal was found by Cheapflights users on 3/30. 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 10/241:40 pmCOS - DLH
2 stops9h 04mDelta
Tue 10/288:05 amDLH - COS
2 stops10h 08mDelta
Deal found 3/30$627

Cheapflights Fare Finder

Customize your flight search to find flights from Colorado to Duluth 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 March 31, 2025.
Use the filters below to find and compare flights from Colorado to Duluth that are best for you.

Fly from

Colorado

Fly to

Duluth

Route

Depart

Return

Price

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

Wed 6/4

6:44 pm-11:38 pm

1 stop3h 54m

Duluth Intl

Sat 6/7

4:16 pm-7:58 pm

1 stop4h 42m

$258

Colorado SpringsDuluth

COS - DLH

COSDLH

Colorado Springs

Sat 9/13

7:30 am-6:30 pm

2 stops10h 00m

Duluth Intl

Tue 9/16

7:53 am-4:43 pm

2 stops9h 50m

$379

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

Fri 4/11

8:00 am-2:30 pm

2 stops29h 30m

Duluth Intl

Sat 4/19

3:05 pm-7:50 pm

1 stop5h 45m

$453

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

Thu 6/19

11:03 am-5:40 pm

1 stop5h 37m

$354

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

Thu 6/19

8:50 pm-10:52 am

2 stops13h 02m

$626

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Best time to book a flight from Colorado to Duluth

Have a flexible travel schedule? Discover the best time to fly to Duluth from Colorado 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 Colorado to Duluth

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

Currently, January is the cheapest month in which you can book a flight from Colorado to Duluth (average of $335). Flying from Colorado to Duluth in June is currently the most expensive (average of $483). 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.

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

Find hourly flight availability from Colorado to Duluth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 31, 2025.

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

Rainfall in Duluth by month

Plan your trip to Duluth by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Duluth ranges from 0.6 - 3.6 inches per month. August is typically the wettest month, when rainfall can reach 3.6 in. February is typically the driest time to visit Duluth when rainfall is around 0.6 in.

Temperature in Duluth by month

Plan your trip to Duluth by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Duluth, 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 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 12.2 F).

Reviews of airlines servicing Duluth

Get insights into the airlines that provide service to Duluth. 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 Duluth. Reviews last updated March 31, 2025.
Read reviews from past customers who have flown Delta and United Airlines from Colorado to Duluth. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Marie Antonette,Sep 2023

CDG - MSP

The actual flight out of MSP was great. However, it was delayed by an hour and we didn’t have anyone at our gate to provide any information until boarding.
Delta
8.0
Very good
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Marie Antonette,Sep 2023

CDG - MSP

The actual flight out of MSP was great. However, it was delayed by an hour and we didn’t have anyone at our gate to provide any information until boarding.
United Airlines
7.4
Good
8,614 reviews
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Marie Antonette,Sep 2023

CDG - MSP

The actual flight out of MSP was great. However, it was delayed by an hour and we didn’t have anyone at our gate to provide any information until boarding.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Duluth. 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 into for flights to Duluth from Colorado?

    Most people fly into Duluth Intl (DLH) if they book a flight to Duluth from Colorado. Duluth Intl is conveniently located just 5.8 mi from Duluth’s city center.

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

    Yes. In addition to deals on Colorado to Duluth flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado to Duluth?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to Duluth.

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

    Yes. Cheapflights offers flight deals from Colorado to Duluth 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 Colorado to Duluth?

    Currently, January is the cheapest month in which you can book a flight from Colorado to Duluth (average of $335). Flying from Colorado to Duluth in June is currently the most expensive (average of $483). 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

Traveling to a place near Colorado?

Book flights to Colorado if you plan to visit one of these locations
Two Harbors
Superior

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Top 3 airlines flying from Colorado to Duluth

Discover the top 3 airlines that operate flights from Colorado to Duluth. 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$58Average$176FlexibilityNo cancel feeOn-time83%
DeltaCheapest$221Average$353FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$250Average$506FlexibilityNo cancel feeOn-time69%
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