DEN - DLH

$244 Find Cheap Flights from Denver to Duluth

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Duluth departing on 5/20. 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
Travelers love KAYAK
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Everything you should know

Cheapest round-trip
$278
Overall average: $376
Delta
Fri 5/15Tue 5/19
DEN - DLH • 1 stop
Cheapest one-way
$224
Typical prices: $170-$319
Delta
Wed 5/20
DEN - DLH • 1 stop
Top airlines
Delta
Cheapest • from $278 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
December
Cheapest • 29% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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

Fri, May 15 - Tue, May 19
Delta Logo
6:55 pm - 11:38 pm
DEN
-
DLH
3h 43m
1 stop
Delta Logo
4:20 pm - 10:29 pm
DLH
-
DEN
7h 09m
1 stop
$278Delta
Fri, May 15 - Tue, May 19
Delta Logo
6:55 pm - 11:38 pm
DEN
-
DLH
3h 43m
1 stop
Delta Logo
5:10 am - 8:19 am
DLH
-
DEN
4h 09m
1 stop
$290Delta
Wed, Mar 25 - Wed, Apr 1
Delta Logo
6:12 pm - 10:47 pm
DEN
-
DLH
3h 35m
1 stop
Delta Logo
12:37 pm - 4:00 pm
DLH
-
DEN
4h 23m
1 stop
$297Delta
Wed, Mar 25 - Wed, Apr 1
Delta Logo
6:12 pm - 10:47 pm
DEN
-
DLH
3h 35m
1 stop
Delta Logo
12:37 pm - 4:00 pm
DLH
-
DEN
4h 23m
1 stop
$327Delta
Wed, Mar 25 - Wed, Apr 1
Delta Logo
6:12 pm - 10:47 pm
DEN
-
DLH
3h 35m
1 stop
Delta Logo
12:37 pm - 4:00 pm
DLH
-
DEN
4h 23m
1 stop
$329Delta
Sat, Apr 18 - Tue, Apr 21
United Airlines Logo
6:00 am - 2:27 pm
DEN
-
DLH
7h 27m
1 stop
United Airlines Logo
7:45 am - 2:51 pm
DLH
-
DEN
8h 06m
1 stop
$351United Airlines
Fri, Jul 10 - Sun, Jul 12
Delta Logo
6:55 pm - 11:38 pm
DEN
-
DLH
3h 43m
1 stop
Delta Logo
5:10 am - 8:19 am
DLH
-
DEN
4h 09m
1 stop
$418Delta
Sat, Apr 18 - Tue, Apr 21
United Airlines Logo
6:00 am - 2:27 pm
DEN
-
DLH
7h 27m
1 stop
United Airlines Logo
3:08 pm - 8:35 am
DLH
-
DEN
18h 27m
2 stops
$425United Airlines
Sat, Jul 18 - Sat, Jul 25
Delta Logo
6:10 am - 10:57 am
DEN
-
DLH
3h 47m
1 stop
Delta Logo
5:10 am - 8:19 am
DLH
-
DEN
4h 09m
1 stop
$428Delta
Sat, Apr 18 - Tue, Apr 21
United Airlines Logo
6:00 am - 2:27 pm
DEN
-
DLH
7h 27m
1 stop
United Airlines Logo
3:08 pm - 8:35 am
DLH
-
DEN
18h 27m
2 stops
$432United Airlines
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 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 December, where tickets cost $264 (return) on average. On the other hand, the most expensive months are January and September, where the average cost of round-trip tickets is $513 and $500 respectively.

Good to know

Low seasonMarch
Cheapest flight$224
Best time to beat the crowds but there is an average 22% increase in price.
Most popular time to fly and prices are also 12% 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 $224 for a one-way ticket and $278 for a round-trip.

  • 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 $391 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 $574 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 8125 reviews
8.1Boarding
7.8Entertainment
7.9Comfort
7.2Food
8.5Crew
Airline reviews

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

2.0 MediocreAndrea, Jan 2026
CMH - MSP
Read more Delta reviews

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Flight taking off must have been behind, because there was no pre-departure drink for first class like normal. Also, person in front of mine’s seat got stuck in the as far back as it normally goes position for the whole flight even during landing, flight attendant unable to fix it. Gate was not empty when we arrived, but that is MSP’s fault since was overdue for push back, not Delta’s, so had to sit on tarmac for a while and international flight so then still had to go through customs. Flight crew was excellent throughout though!

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Did not realize internet screen was hidden between seats and no info printed!!!!

Good seats in Main cabin, excellent service and excellent landing

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

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

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

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

3 seperate extremely rude unhelpful staff. Delayed flight. Lost my bag

Sat between 2 big men. I was uncomfortable. Flight was delayed twice. About 2 hours altogether.

It was a good experience. I do wish the seats were roomier. Also, I did not like being charged for my carry on bag

Exceptional take off and landing in snow and wind…thank you to the well skilled pilots!

I liked entertainment system being downloaded on my iPad. The selections were limited but I appreciated being able to use my own screen. The flight was just fine. My only issue was both terminals being far from the main airport. Especially stoning at LAX near midnight and having to wait for a bus to take us to baggage pickup. Very inconvenient.

Just fine but comfort is always an issue since the seats are so close

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

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

Information on your arrival and departure airports