DLH - DEN

$238 Find Cheap Flights from Duluth to Denver

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Duluth to Denver departing on 4/16. 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 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$238
Overall average: $283
Delta
Thu 4/16Wed 4/22
DLH - DEN • 1 stop
Cheapest one-way
Multiple Airlines
Thu 10/30
DLH - DEN • multi-stop
Top airlines
Delta
Cheapest • from $238 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
September
Cheapest • 54% 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 Denver!
Flight Deals
Booking Insights
Flight 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

Thu, Apr 16 - Wed, Apr 22
Delta Logo
4:20 pm - 10:29 pmDLH-DEN
7h 09m1 stop
Delta Logo
6:10 am - 10:57 amDEN-DLH
3h 47m1 stop
$238Delta
Find Deal
Sat, Feb 21 - Sat, Feb 28
Delta Logo
4:20 pm - 8:03 pmDLH-DEN
4h 43m1 stop
Delta Logo
6:10 am - 11:07 amDEN-DLH
3h 57m1 stop
$263Delta
Find Deal
Thu, Apr 16 - Wed, Apr 22
Delta Logo
4:20 pm - 10:29 pmDLH-DEN
7h 09m1 stop
Delta Logo
6:10 am - 10:57 amDEN-DLH
3h 47m1 stop
$288Delta
Find Deal
Fri, Nov 14 - Mon, Nov 17
Delta Logo
8:14 am - 12:43 pmDLH-DEN
5h 29m1 stop
Delta Logo
6:59 pm - 11:50 pmDEN-DLH
3h 51m1 stop
$348Delta
Find Deal
Wed, Apr 22 - Sat, Apr 25
Delta Logo
4:20 pm - 10:29 pmDLH-DEN
7h 09m1 stop
Delta Logo
7:00 am - 10:48 pmDEN-DLH
14h 48m2 stops
$352Delta
Find Deal
Sun, Nov 16 - Wed, Nov 19
Delta Logo
5:10 am - 10:03 amDLH-DEN
5h 53m1 stop
Delta Logo
5:45 am - 11:21 amDEN-DLH
4h 36m1 stop
$366Delta
Find Deal
Tue, Nov 25 - Tue, Dec 2
Delta Logo
5:10 am - 10:03 amDLH-DEN
5h 53m1 stop
Delta Logo
5:45 am - 11:20 amDEN-DLH
4h 35m1 stop
$368Delta
Find Deal
Thu, Dec 18 - Sat, Jan 10
United Airlines Logo
3:03 pm - 11:38 pmDLH-DEN
9h 35m1 stop
United Airlines Logo
6:00 am - 2:30 pmDEN-DLH
7h 30m1 stop
$387United Airlines
Find Deal
Tue, Apr 14 - Fri, Apr 17
Delta Logo
4:20 pm - 10:29 pmDLH-DEN
7h 09m1 stop
Delta Logo
4:00 pm - 10:48 pmDEN-DLH
5h 48m1 stop
$401Delta
Find Deal
Thu, Dec 18 - Sat, Jan 10
United Airlines Logo
7:50 am - 11:38 pmDLH-DEN
16h 48m1 stop
United Airlines Logo
6:00 am - 2:30 pmDEN-DLH
7h 30m1 stop
$427United 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 September, where tickets cost $153 (return) on average. On the other hand, the most expensive months are July and March, where the average cost of round-trip tickets is $442 and $422 respectively.

Good to know

Low seasonAugust
Cheapest flight$238
Best time to beat the crowds but there is an average 17% increase in price.
Most popular time to fly with an average 17% 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 $238 for a round-trip ticket.

  • 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?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Duluth and Denver, with Star Alliance 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 $341 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 $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.
7.9
DeltaOverall score based on 7995 reviews
8.2Boarding
7.3Food
8.5Crew
7.9Entertainment
7.9Comfort
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

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.

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 Duluth to Denver

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.