DLH - DEN

$174 Find Cheap Flights from Duluth to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Duluth to Denver departing on 9/7. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Duluth to Denver, 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 Duluth to Denver, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Duluth to Denver (DLH-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Duluth to Denver 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 Duluth to Denver

Sat, Oct 4 - Sat, Oct 11
Delta Logo
4:19 pm - 7:54 pmDLH-DEN
4h 35m1 stop
Delta Logo
6:00 am - 11:22 amDEN-DLH
4h 22m1 stop
$238Delta
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Tue, Sep 9 - Sat, Sep 13
Delta Logo
7:50 am - 12:49 pmDLH-DEN
5h 59m1 stop
Delta Logo
4:00 pm - 10:43 pmDEN-DLH
5h 43m1 stop
$273Delta
Find Deal
Tue, Nov 4 - Fri, Nov 7
Delta Logo
4:10 pm - 7:30 pmDLH-DEN
4h 20m1 stop
Delta Logo
6:53 pm - 11:42 pmDEN-DLH
3h 49m1 stop
$284Delta
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Tue, Nov 4 - Fri, Nov 7
Delta Logo
12:02 pm - 3:42 pmDLH-DEN
4h 40m1 stop
Delta Logo
6:53 pm - 11:42 pmDEN-DLH
3h 49m1 stop
$291Delta
Find Deal
Tue, Sep 9 - Sat, Sep 13
Delta Logo
5:10 am - 7:08 pmDLH-DEN
14h 58m2 stops
Delta Logo
4:00 pm - 10:43 pmDEN-DLH
5h 43m1 stop
$337Delta
Find Deal
Thu, Sep 11 - Thu, Sep 18
Delta Logo
10:50 am - 3:44 pmDLH-DEN
5h 54m1 stop
Delta Logo
4:00 pm - 10:43 pmDEN-DLH
5h 43m1 stop
$342Delta
Find Deal
Tue, Sep 9 - Sat, Sep 13
Delta Logo
7:50 am - 12:49 pmDLH-DEN
5h 59m1 stop
Delta Logo
6:30 am - 10:43 pmDEN-DLH
15h 13m2 stops
$357Delta
Find Deal
Sat, Aug 30 - Tue, Sep 2
United Airlines Logo
11:20 am - 4:35 pmDLH-DEN
6h 15m1 stop
United Airlines Logo
7:50 am - 10:05 pmDEN-DLH
13h 15m2 stops
$407United Airlines
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Tue, Aug 19 - Sun, Aug 31
United Airlines Logo
11:20 am - 4:35 pmDLH-DEN
6h 15m1 stop
United Airlines Logo
6:00 am - 2:35 pmDEN-DLH
7h 35m1 stop
$417United Airlines
Find Deal
Sat, Oct 4 - Sat, Oct 11
United Airlines Logo
9:45 am - 4:35 pmDLH-DEN
7h 50m1 stop
United Airlines Logo
5:40 pm - 10:45 amDEN-DLH
16h 05m2 stops
$423United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Duluth to Denver flights

Get data-powered insights and trends into flights from Duluth to Denver 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 Duluth to Denver?

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

For Duluth to Denver, Sunday is the cheapest day to fly on average and Monday is the most expensive. Flying from Denver back to Duluth, the best deals are generally found on Monday, with Saturday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Duluth to Denver, 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 Duluth to Denver is November, where tickets cost $259 (return) on average. On the other hand, the most expensive months are August and December, where the average cost of round-trip tickets is $488 and $445 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Duluth to Denver, 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 Duluth to Denver, you should book around 8 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$174
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly with an average 9% increase in price.
Flight from Duluth to Denver

When to book flights from Duluth to Denver

Are your dates flexible? Find out the best times to travel from Duluth to Denver 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 Duluth to Denver

  • What is the cheapest flight from Duluth to Denver?

    In the last 3 days, the lowest price for a flight from Duluth to Denver was $174 for a one-way ticket and $238 for a round-trip.

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

    A passport is not required to fly from Duluth to Denver.

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

    On your way to Denver, you’ll fly out from Duluth Intl. You’ll be landing at Denver Intl.

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

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

  • Which airline alliances offer flights from Duluth to Denver?

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

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

    The two airlines most popular with KAYAK users for flights from Duluth to Denver are Delta and United Airlines. With an average price for the route of $344 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $493 and an overall rating of 7.4.

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

    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 Duluth to Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Duluth 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 Duluth to Denver?

    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 Denver with an airline and back to Duluth with another airline. Booking your flights between Duluth and DEN 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 Duluth to Denver?

    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 Denver from Duluth 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 Duluth to Denver

 
See real verified KAYAK customer reviews for airlines flying from Duluth to Denver. 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 Duluth to Denver? 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.
8.0
DeltaOverall score based on 7980 reviews
7.3Food
8.2Boarding
7.9Comfort
8.5Crew
7.9Entertainment
Airline reviews

Delayed and took off even later than the scheduled delay time

8.0 ExcellentAnonymous, Jul 2025DTW - SEA
Read more Delta reviews

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

I always fly Delta main cabin and pay to upgrade my seat to preferred/extra leg room. However this time even with the buying the upgraded seat I was extremely cramped with very little legroom and unable to move comfortably. For some reason meal service was very early in the flight and my row seemed to have been skipped. Most of my attendant calls were unanswered. I was unable to get extra water, or crackers/snacks to make up for my missed meal. I always carry protein bars in my personal bag, but with no extra legroom I wasn’t able to access from underseat in front of me. I am unable to sleep while flying so I read and count on in flight entertainment. However the passenger in front of me reclined their seat fully preventing me from being able to view the screen or be able to rest my book on tray table to read. One of the first times I’ve been completely disappointed in Delta. I fly internationally 2-3 times a year.

Flight was delayed due to weather. Crew did a nice job of making us comfortable. No complain complaints.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

Very rough getting into denver. my kid threw up it was so rough.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

Food choices were very limited. Taste of the dishes was average.

I liked all the informational texts. I always knew where to go and when .

Received an email the night before showing that there would be seatback entertainment on our flight. We get on and there was no seatback entertainment. And then it was a scramble to try to set up the iPads for the kids before takeoff so they could watch something for the four hour flight.

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.

Boarded flight, issues with the place and had to get off the plane, wait, and then board a different plane at a different gate. This impacted my short trip negatively. A worker died outside of the plane window and we sat there the entire time while they tried to revive him, unsuccessfully, which was traumatic.

The flight there was frustrating but the flight home was very good.

Flight was delayed in phoenix by 1 hour. When Kenny got to minneapolis st paul, Kenny missed his connecting flight to Duluth on Sun country air. Sun country customer service did nothing to help Kenny get home to Duluth. We will not fly with sun country ever again.

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

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