DEN - DLH

$253 Find Cheap Flights from Denver to Duluth

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Duluth departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Duluth

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Duluth, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Duluth, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$253
Overall average: $296
Delta
Wed 11/12Thu 11/20
DEN - DLH • 1 stop
Cheapest one-way
Multiple Airlines
Thu 10/30
DEN - DLH • multi-stop
Top airlines
Delta
Cheapest • from $253 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 44% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 27% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Duluth!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Denver to Duluth (DEN-DLH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Duluth that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Duluth

Wed, Nov 12 - Thu, Nov 20
Delta Logo
5:45 am - 11:21 amDEN-DLH
4h 36m1 stop
Delta Logo
4:18 pm - 7:31 pmDLH-DEN
4h 13m1 stop
$253Delta
Find Deal
Wed, Nov 12 - Sun, Nov 16
Delta Logo
4:18 pm - 11:50 pmDEN-DLH
6h 32m1 stop
Delta Logo
5:10 am - 10:03 amDLH-DEN
5h 53m1 stop
$268Delta
Find Deal
Mon, Nov 10 - Thu, Nov 20
Delta Logo
5:45 am - 11:21 amDEN-DLH
4h 36m1 stop
Delta Logo
5:10 am - 10:03 amDLH-DEN
5h 53m1 stop
$283Delta
Find Deal
Tue, Nov 11 - Tue, Nov 18
Delta Logo
6:59 pm - 11:50 pmDEN-DLH
3h 51m1 stop
Delta Logo
5:10 am - 10:03 amDLH-DEN
5h 53m1 stop
$298Delta
Find Deal
Wed, Nov 12 - Wed, Nov 19
United Airlines Logo
6:00 am - 2:31 pmDEN-DLH
7h 31m1 stop
United Airlines Logo
3:06 pm - 8:04 pmDLH-DEN
5h 58m1 stop
$323United Airlines
Find Deal
Thu, Nov 13 - Thu, Nov 20
Delta Logo
6:59 pm - 11:50 pmDEN-DLH
3h 51m1 stop
Delta Logo
5:10 am - 10:03 amDLH-DEN
5h 53m1 stop
$327Delta
Find Deal
Thu, Nov 13 - Tue, Nov 18
United Airlines Logo
6:00 am - 2:31 pmDEN-DLH
7h 31m1 stop
United Airlines Logo
11:14 am - 3:44 pmDLH-DEN
5h 30m1 stop
$338United Airlines
Find Deal
Wed, Nov 12 - Wed, Nov 19
Delta Logo
5:45 am - 11:21 amDEN-DLH
4h 36m1 stop
Delta Logo
5:10 am - 8:43 pmDLH-DEN
16h 33m2 stops
$357Delta
Find Deal
Wed, Nov 12 - Thu, Nov 20
Delta Logo
6:48 am - 11:50 pmDEN-DLH
16h 02m2 stops
Delta Logo
5:10 am - 10:03 amDLH-DEN
5h 53m1 stop
$367Delta
Find Deal
Tue, Dec 16 - Sun, Dec 21
Delta Logo
5:45 am - 11:20 amDEN-DLH
4h 35m1 stop
Delta Logo
11:55 am - 4:48 pmDLH-DEN
5h 53m1 stop
$378Delta
Find Deal
Booking Insights

KAYAK's insights & trends for Denver to Duluth flights

Get data-powered insights and trends into flights from Denver to Duluth to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Denver to Duluth?

The average price of all round-trip flights from Denver to Duluth clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Duluth on a Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Denver to Duluth. For your return ticket, we recommend flying on a Sunday and avoiding Mondays for the best deals.

What is the cheapest month to fly from Denver to Duluth?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Duluth, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Duluth is August, where tickets cost $267 (return) on average. On the other hand, the most expensive months are September and March, where the average cost of round-trip tickets is $513 and $457 respectively.

How far in advance should I book a flight from Denver to Duluth?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Duluth, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Duluth, you should book around 3 weeks before departure, which saves you about 44% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$253
Best time to beat the crowds but there is an average 24% increase in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Denver to Duluth

When to book flights from Denver to Duluth

Are your dates flexible? Find out the best times to travel from Denver to Duluth based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Duluth

  • What is the cheapest flight from Denver to Duluth?

    In the last 3 days, the lowest price for a flight from Denver to Duluth was $253 for a round-trip ticket.

  • Do I need a passport to fly between Denver and Duluth?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Denver to Duluth?

    Denver airport is called Denver Intl and the only airport in Duluth is Duluth Intl.

  • Which aircraft models fly most regularly from Denver to Duluth?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Denver to Duluth?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Denver and Duluth, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Denver to Duluth, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Denver to Duluth are Delta and United Airlines. With an average price for the route of $378 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $434 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Denver to Duluth?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Duluth.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Duluth?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Duluth from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Duluth?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Duluth with an airline and back to Denver with another airline. Booking your flights between Denver and DLH can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Duluth?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Duluth from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Denver to Duluth

 
See real verified KAYAK customer reviews for airlines flying from Denver to Duluth. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Duluth? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7995 reviews
7.3Food
8.2Boarding
7.9Comfort
7.9Entertainment
8.5Crew
Airline reviews

On time flight. Seat comfort could be better in the Comfort section.

10.0 ExcellentMichael, Oct 2025CLT - MSP
Read more Delta reviews

On time flight. Seat comfort could be better in the Comfort section.

My only complaint on any flight is meals but your gnocchi was good. The worst is breakfast. I can’t understand why you don’t just serve something simple like yogurt, fruit and a muffin or cinnamon roll.

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

It was beautiful easy and smooth experience. Thank you. Will definitely get Delta for my next travel.

No one fussed at me about my pap machine as a 3rd pice on the plane. Boarding was pleasant and smooth. The boarding agent in Anchorage was a fun character- he could be in a movie. :~) The on-board crew were downright pleasant. No militant attitudes on Delta. Like all planes these days the seats are too narrow for standard Americans and at 5’2” there is barely enough leg room. I don’t know how tall people fold themselves into the seats. But that’s nothing specific to Delta

Boarding was organised and relaxed. Crew were fantastic! Seats were lacking padding causing butt pain and stiffness.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Delta is better for short flights and very low need for customer service. Avoid for longer flights

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Terrible. They wouldn't allow me on my flight on the 14th..

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

The Flight was fine, the staff treated me well, the flight got delayed over 5 1/2 hours for maintenance issues....but it worked out OK,, they were very apologetic about it, and it is better to not fly if there is any issue than endanger peoples lives, so in reality that was a good thing, It did cost me extra for parking because I went beyond the time I had purchased for parking at MSP. But all in all, Good flight

I did not take this flight because the reservation made by Kayak was wrong! Kayak owes me a trip from Minneapolis to Duluth.

When I got to the airport in Seattle, they told me the flight "did not exist". Kayak reserved me a seat on a flight that did not exist. This is inexcusable. I was able to change my reservation to a flight that actually did exist, but the flight was later and then I didn't make it in time for the next leg of my trip from Minneapolis to Duluth. Kayak owes me a trip from Minneapolis to Duluth, and a big apology for messing up my reservation.

The plane was freezing cold. Asked for a blanket and there were none. Was told twice that the pilots would warm the plane and it never happened Worst experience flying ever

Multiple delays because they screwed up on the crew schedule and had to wait for over an hour for more people to come.

It was good. Basic flight. Drinks only. Pay budget. Get budget and I’m good with that. I want to get where I need to go. Not hard to please. Female First Officer is an absolute bonus for me!

The Wi-Fi was off, the arm rests are hard plastic.

The assistance with the wheel chairs was fabulous. All the people were so very friendly and helpful. I want to thank them all.

We almost missed our return flight. We got to the gate one minute from closing the cabin door, and the agent got us aboard the plane! We are so very grateful!!!!!

I already filled out a survey for this flight. We booked through KAYAK with airfare assist, and airfare assist did not confirm or honor our flight. Therefore, we had to go to a different place with a different travel agency. I tried very hard with airfare assist, They also promoted this on cheapair.com, but it was a bait and switch in both instances.

Everything you need to know for your flight from Denver to Duluth

Information on your arrival and departure airports

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