What airlines fly to Denver?

Delta, United Airlines and Sun Country Air are the top three most popular airlines that fly to Denver from Duluth according to our data. Delta is the first choice among our users, with 84% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 3 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

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

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

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

Prices for flights from Duluth Intl Airport to Denver Intl Airport are updated daily.

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

There are 3 operators available for flights from Duluth Intl Airport to Denver Intl Airport as of December 2025.

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

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 Denver Intl Airport.

What documentation or ID do you need to fly to Denver Intl Airport?

The travel and health documents required for your trip to Denver Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Denver Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$46 Cheap Flights from Duluth to Denver in 2025/26

Q: What is the typical price of a round-trip flight between Duluth and Denver?

Prices are currently typical for flights on this route. Typical prices usually range from $192 to $302. The lowest price recently found on this route was $268.

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Find the cheapest flights from Duluth to Denver

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

4:18 pm - 8:05 pm

DLH

DEN

4h 47m1 stop

5:49 pm - 11:55 pm

DEN

DLH

5h 06m1 stop

$268Delta

Sat, Feb 21 - Sat, Feb 28

3:08 pm - 10:05 pm

DLH

DEN

7h 57m1 stop

6:00 am - 2:27 pm

DEN

DLH

7h 27m1 stop

$306United Airlines

Thu, Apr 16 - Wed, Apr 22

4:15 pm - 8:05 pm

DLH

DEN

4h 50m1 stop

5:49 pm - 11:55 pm

DEN

DLH

5h 06m1 stop

$332Delta

Fri, Feb 20 - Tue, Feb 24

11:19 am - 4:24 pm

DLH

DEN

6h 05m1 stop

6:00 am - 2:27 pm

DEN

DLH

7h 27m1 stop

$358United Airlines

Thu, Apr 16 - Wed, Apr 22

4:15 pm - 8:05 pm

DLH

DEN

4h 50m1 stop

6:20 am - 11:56 am

DEN

DLH

4h 36m1 stop

$362Delta

Wed, Mar 4 - Sun, Mar 8

3:05 pm - 9:59 pm

DLH

DEN

7h 54m1 stop

6:00 am - 2:30 pm

DEN

DLH

7h 30m1 stop

$388United Airlines

Sat, Jan 17 - Wed, Jan 21

8:00 am - 1:56 pm

DLH

DEN

6h 56m1 stop

6:30 am - 12:06 pm

DEN

DLH

4h 36m1 stop

$418Delta

Thu, Apr 16 - Wed, Apr 22

3:08 pm - 10:32 am

DLH

DEN

20h 24m2 stops

6:00 am - 2:27 pm

DEN

DLH

7h 27m1 stop

$443United Airlines

Thu, Apr 16 - Wed, Apr 22

11:20 am - 4:36 pm

DLH

DEN

6h 16m1 stop

7:20 pm - 10:43 am

DEN

DLH

14h 23m2 stops

$461United Airlines

Sat, Feb 21 - Sat, Feb 28

12:37 pm - 4:03 pm

DLH

DEN

4h 26m1 stop

4:58 pm - 10:47 pm

DEN

DLH

4h 49m1 stop

$477Delta

Wed, Mar 11 - Sun, Mar 15

United Airlines flights from Duluth to Denver

Our best United Airlines deals on Duluth to Denver flight tickets

United Airlines

Apr 16

DLH3:08 pmDuluth Intl

7h 57m

1 stop

DEN10:05 pmDenver Intl

Apr 22

DEN6:00 amDenver Intl

7h 27m

1 stop

DLH2:27 pmDuluth Intl

$306

Find similar

United Airlines

Apr 16

DLH11:19 amDuluth Intl

6h 05m

1 stop

DEN4:24 pmDenver Intl

Apr 22

DEN6:00 amDenver Intl

7h 27m

1 stop

DLH2:27 pmDuluth Intl

$358

Find similar

United Airlines

Jan 17

DLH3:05 pmDuluth Intl

7h 54m

1 stop

DEN9:59 pmDenver Intl

Jan 21

DEN6:00 amDenver Intl

7h 30m

1 stop

DLH2:30 pmDuluth Intl

$388

Find similar

Delta flights from Duluth to Denver

Our best Delta deals on Duluth to Denver flight tickets

Delta

Feb 21

DLH4:18 pmDuluth Intl

4h 47m

1 stop

DEN8:05 pmDenver Intl

Feb 28

DEN5:49 pmDenver Intl

5h 06m

1 stop

DLH11:55 pmDuluth Intl

$268

Find similar

Delta

Feb 20

DLH4:15 pmDuluth Intl

4h 50m

1 stop

DEN8:05 pmDenver Intl

Feb 24

DEN5:49 pmDenver Intl

5h 06m

1 stop

DLH11:55 pmDuluth Intl

$332

Find similar

Delta

Dec 25

DLH4:10 pmDuluth Intl

4h 58m

1 stop

DEN8:08 pmDenver Intl

Dec 31

DEN3:02 pmDenver Intl

6h 50m

1 stop

DLH10:52 pmDuluth Intl

$358

Find similar

Fly from

Fly to

Route

Depart

Return

Price

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-11:55 pm

1 stop5h 06m

$268

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 4/16

3:08 pm-10:05 pm

1 stop7h 57m

Denver Intl

Wed 4/22

6:00 am-2:27 pm

1 stop7h 27m

$306

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Fri 2/20

4:15 pm-8:05 pm

1 stop4h 50m

Denver Intl

Tue 2/24

5:49 pm-11:55 pm

1 stop5h 06m

$332

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 4/16

11:19 am-4:24 pm

1 stop6h 05m

Denver Intl

Wed 4/22

6:00 am-2:27 pm

1 stop7h 27m

$358

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Wed 3/4

4:15 pm-8:05 pm

1 stop4h 50m

Denver Intl

Sun 3/8

6:20 am-11:56 am

1 stop4h 36m

$362

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 1/17

3:05 pm-9:59 pm

1 stop7h 54m

Denver Intl

Wed 1/21

6:00 am-2:30 pm

1 stop7h 30m

$388

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 4/16

8:00 am-1:56 pm

1 stop6h 56m

Denver Intl

Wed 4/22

6:30 am-12:06 pm

1 stop4h 36m

$418

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Thu 4/16

3:08 pm-10:32 am

2 stops20h 24m

Denver Intl

Wed 4/22

6:00 am-2:27 pm

1 stop7h 27m

$443

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Sat 2/21

11:20 am-4:36 pm

1 stop6h 16m

Denver Intl

Sat 2/28

7:20 pm-10:43 am

2 stops14h 23m

$461

DuluthDenver

DLH - DEN

DLHDEN

Duluth Intl

Wed 3/11

12:37 pm-4:03 pm

1 stop4h 26m

Denver Intl

Sun 3/15

4:58 pm-10:47 pm

1 stop4h 49m

$477

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 Denver

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 typical price of a round-trip flight between Duluth and Denver?

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Duluth is in September. Flight prices, which tend to average around $153, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in September, then you should wait until December to fly from Duluth, when ticket prices are also cheap, with an average price of $170.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Sunday when prices can be found for as low as $238. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Monday, with ticket prices averaging around $416.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is at noon when flights can be purchased for as low as $268. Flights in the morning are often more expensive with an average ticket price of $383.

When to book flights from Duluth to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Duluth to Denver according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Duluth to Denver (DLH to DEN) flight deals and tips

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

Fastest flight time	4h 26m
Direct flights	None

The fastest flight from Duluth to Denver takes 4h 26m

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

Search flight deals

How far is Duluth Intl to Denver Intl by plane?
Denver Intl is 808.1 mi away from Duluth Intl. By plane, this route typically takes 4h 26m.
When did momondo last update prices for flights from Duluth Intl Airport to Denver Intl Airport?
Prices for flights from Duluth Intl Airport to Denver Intl Airport are updated daily.
How many operators does momondo search for flights from Duluth Intl Airport to Denver Intl Airport?
There are 3 operators available for flights from Duluth Intl Airport to Denver Intl Airport as of December 2025.
How old do you have to be to fly from Duluth Intl Airport to Denver Intl Airport?
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 Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The travel and health documents required for your trip to Denver Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Denver Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Duluth to Denver?
momondo data reveals that the most frequently booked airline on the route from Duluth to Denver is Delta, representing 84% of all bookings. The subsequent popular airlines are United Airlines at 9% and Sun Country Air at 7%.

Best airlines flying from Duluth to Denver

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

Airline	Rating	Free Cancellation	Price
Sun Country Air	PriceFrom $49	Free Cancellation	Rating 6.9 334 reviews	Search Sun Country Air flights
Delta	PriceFrom $153	Free Cancellation	Rating 7.9 8,013 reviews	Search Delta flights
United Airlines	PriceFrom $240	Free Cancellation	Rating 7.4 9,102 reviews	Search United Airlines flights

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Why use momondo?

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

Finding the right flight to Denver from Duluth is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Denver quick and easy, saving you time and money.

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

Flights from Duluth to Denver with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Denver from Duluth.

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

If you are not ready to book a flight from Duluth to Denver now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Denver and let you know when they change.