What is the cheapest airline that flies from Duluth Intl to Colorado?

Delta and United Airlines are the most popular carriers operating from Duluth Intl to Colorado

What airlines fly to Colorado?

Delta, United Airlines and Sun Country Air are the top three most popular airlines that fly to Colorado from Duluth according to our data. Delta is the first choice among our users, with 83% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 3 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Duluth Intl Airport to Colorado?

Prices for flights from Duluth Intl Airport to Colorado were last updated today.

How many operators does momondo search for flights from Duluth Intl Airport to Colorado?

There are 3 operators available for flights from Duluth Intl Airport to Colorado as of February 2026.

How old do you have to be to fly from Duluth Intl Airport to Colorado?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Duluth Intl Airport to Colorado.

What documentation or ID do you need to fly to Colorado?

The required travel and health documents for your Colorado trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Colorado. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$146 Cheap Flights from Duluth to Colorado in 2026

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Find the cheapest flights from Duluth to Colorado

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:32 pm - 7:51 pm

DLH

DEN

4h 19m

1 stop

6:12 pm - 10:47 pm

DEN

DLH

3h 35m

1 stop

$256Delta

Sat, Apr 4 - Wed, Apr 8

12:37 pm - 4:03 pm

DLH

DEN

4h 26m

1 stop

6:20 am - 11:56 am

DEN

DLH

4h 36m

1 stop

$292Delta

Sat, Apr 4 - Thu, Apr 9

5:10 am - 8:16 am

DLH

DEN

4h 06m

1 stop

6:00 am - 10:57 am

DEN

DLH

3h 57m

1 stop

$294Delta

Sat, May 30 - Tue, Jun 2

6:43 pm - 11:30 pm

DLH

DEN

5h 47m

1 stop

6:00 am - 2:27 pm

DEN

DLH

7h 27m

1 stop

$308United Airlines

Thu, Mar 26 - Wed, Apr 1

4:32 pm - 7:51 pm

DLH

DEN

4h 19m

1 stop

6:20 am - 11:56 am

DEN

DLH

4h 36m

1 stop

$317Delta

Sat, Apr 4 - Thu, Apr 9

6:47 pm - 12:58 am

DLH

DEN

7h 11m

1 stop

6:00 am - 2:27 pm

DEN

DLH

7h 27m

1 stop

$322United Airlines

Thu, Apr 16 - Wed, Apr 22

6:29 pm - 11:35 pm

DLH

DEN

6h 06m

1 stop

6:00 am - 2:22 pm

DEN

DLH

7h 22m

1 stop

$327United Airlines

Thu, Apr 30 - Sun, May 3

12:00 pm - 3:31 pm

DLH

DEN

4h 31m

1 stop

6:10 am - 10:57 am

DEN

DLH

3h 47m

1 stop

$365Delta

Sat, Aug 8 - Tue, Aug 11

11:20 am - 4:41 pm

DLH

DEN

6h 21m

1 stop

6:00 am - 2:27 pm

DEN

DLH

7h 27m

1 stop

$388United Airlines

Fri, Mar 27 - Wed, Apr 1

4:30 pm - 8:15 pm

DLH

DEN

4h 45m

1 stop

6:00 am - 12:04 pm

DEN

DLH

5h 04m

1 stop

$405Delta

Fri, May 15 - Mon, May 18

United Airlines flights from Duluth to Colorado

Our best United Airlines deals on Duluth to Colorado flight tickets

United Airlines

Mar 26

DLH6:43 pmDuluth Intl

5h 47m

1 stop

DEN11:30 pmDenver Intl

Apr 1

DEN6:00 amDenver Intl

7h 27m

1 stop

DLH2:27 pmDuluth Intl

$308

United Airlines

Apr 16

DLH6:47 pmDuluth Intl

7h 11m

1 stop

DEN12:58 amDenver Intl

Apr 22

DEN6:00 amDenver Intl

7h 27m

1 stop

DLH2:27 pmDuluth Intl

$322

United Airlines

Apr 30

DLH6:29 pmDuluth Intl

6h 06m

1 stop

DEN11:35 pmDenver Intl

May 3

DEN6:00 amDenver Intl

7h 22m

1 stop

DLH2:22 pmDuluth Intl

$327

Delta flights from Duluth to Colorado

Our best Delta deals on Duluth to Colorado flight tickets

Delta

Apr 4

DLH4:32 pmDuluth Intl

4h 19m

1 stop

DEN7:51 pmDenver Intl

Apr 8

DEN6:12 pmDenver Intl

3h 35m

1 stop

DLH10:47 pmDuluth Intl

$256

Delta

Apr 4

DLH12:37 pmDuluth Intl

4h 26m

1 stop

DEN4:03 pmDenver Intl

Apr 9

DEN6:20 amDenver Intl

4h 36m

1 stop

DLH11:56 amDuluth Intl

$292

Delta

May 30

DLH5:10 amDuluth Intl

4h 06m

1 stop

DEN8:16 amDenver Intl

Jun 2

DEN6:00 amDenver Intl

3h 57m

1 stop

DLH10:57 amDuluth Intl

$294

Fly from

Fly to

Route

Depart

Return

Price

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 4/4

4:32 pm-7:51 pm

1 stop4h 19m

Denver Intl

Wed 4/8

6:12 pm-10:47 pm

1 stop3h 35m

$256

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 4/4

12:37 pm-4:03 pm

1 stop4h 26m

Denver Intl

Thu 4/9

6:20 am-11:56 am

1 stop4h 36m

$292

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 5/30

5:10 am-8:16 am

1 stop4h 06m

Denver Intl

Tue 6/2

6:00 am-10:57 am

1 stop3h 57m

$294

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 3/26

6:43 pm-11:30 pm

1 stop5h 47m

Denver Intl

Wed 4/1

6:00 am-2:27 pm

1 stop7h 27m

$308

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 4/4

4:32 pm-7:51 pm

1 stop4h 19m

Denver Intl

Thu 4/9

6:20 am-11:56 am

1 stop4h 36m

$317

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 4/16

6:47 pm-12:58 am

1 stop7h 11m

Denver Intl

Wed 4/22

6:00 am-2:27 pm

1 stop7h 27m

$322

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 4/30

6:29 pm-11:35 pm

1 stop6h 06m

Denver Intl

Sun 5/3

6:00 am-2:22 pm

1 stop7h 22m

$327

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 8/8

12:00 pm-3:31 pm

1 stop4h 31m

Denver Intl

Tue 8/11

6:10 am-10:57 am

1 stop3h 47m

$365

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 3/27

11:20 am-4:41 pm

1 stop6h 21m

Denver Intl

Wed 4/1

6:00 am-2:27 pm

1 stop7h 27m

$388

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 5/15

4:30 pm-8:15 pm

1 stop4h 45m

Denver Intl

Mon 5/18

6:00 am-12:04 pm

1 stop5h 04m

$405

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Duluth to Colorado

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Colorado?

The month of September is, on average, the cheapest month to fly to Colorado from Duluth, with most prices found around $153. The month of December is another great option to travel to Colorado, with average flight prices from Duluth averaging around $170.

Can stopping save me money on Duluth to Colorado flights?

You could potentially save up to 24% on your flight if you consider stops on a Duluth to Colorado flight.

Cheap Duluth to Colorado flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Duluth to Colorado

Fastest flight time	4h 19m
Direct flights	None

The fastest flight from Duluth to Colorado takes 4h 19m

There are no direct flights from Duluth to Colorado. There are no popular flight routes from Duluth to Colorado.

Search flight deals

When did momondo last update prices for flights from Duluth Intl Airport to Colorado?
Prices for flights from Duluth Intl Airport to Colorado were last updated today.
How many operators does momondo search for flights from Duluth Intl Airport to Colorado?
There are 3 operators available for flights from Duluth Intl Airport to Colorado as of February 2026.
How old do you have to be to fly from Duluth Intl Airport to Colorado?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Duluth Intl Airport to Colorado.
What documentation or ID do you need to fly to Colorado?
The required travel and health documents for your Colorado trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Colorado. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Duluth to Colorado

Compare and see reviews for airlines that fly from Duluth to Colorado with momondo

Airline	Rating	Free Cancellation	Price
Sun Country Air	PriceFrom $49	Free Cancellation	Rating 6.8 340 reviews	Search Sun Country Air flights
Delta	PriceFrom $123	Free Cancellation	Rating 7.9 8,238 reviews	Search Delta flights
United Airlines	PriceFrom $238	Free Cancellation	Rating 7.4 9,342 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Duluth to Colorado?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Duluth to Colorado. momondo saves you time and could save you money on your trip.

Can I find flights from Duluth to Colorado with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Colorado from Duluth with this policy.

How can momondo help me find flights from Duluth to Colorado?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Duluth to Colorado.

I’m not ready to book a flight from Duluth to Colorado right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Colorado from Duluth. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.