DLH - DEN

$159 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 3/10. 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
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Everything you should know

Cheapest round-trip
$258
Typical prices: $302-$473
Delta
Fri 1/30Mon 2/2
DLH - DEN • 1 stop
Cheapest one-way
$159
Typical prices: $138-$288
Delta
Tue 3/10
DLH - DEN • 1 stop
When to travel
September
Cheapest • 55% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Fri, Jan 30 - Mon, Feb 2
Delta Logo
11:56 am - 4:41 pm
DLH
-
DEN
5h 45m1 stop
Delta Logo
5:49 pm - 11:52 pm
DEN
-
DLH
5h 03m1 stop
$258Delta
Sat, Feb 21 - Sat, Feb 28
Delta Logo
4:18 pm - 8:05 pm
DLH
-
DEN
4h 47m1 stop
Delta Logo
5:49 pm - 11:25 pm
DEN
-
DLH
4h 36m1 stop
$288Delta
Sat, Jan 10 - Sat, Jan 17
Delta Logo
11:56 am - 4:52 pm
DLH
-
DEN
5h 56m1 stop
Delta Logo
5:51 pm - 11:52 pm
DEN
-
DLH
5h 01m1 stop
$318Delta
Fri, Jan 9 - Mon, Jan 12
Delta Logo
11:56 am - 4:44 pm
DLH
-
DEN
5h 48m1 stop
Delta Logo
5:51 pm - 11:52 pm
DEN
-
DLH
5h 01m1 stop
$323Delta
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
3:19 pm - 10:05 pm
DLH
-
DEN
7h 46m1 stop
United Airlines Logo
3:20 pm - 9:59 pm
DEN
-
DLH
5h 39m1 stop
$325United Airlines
Fri, Feb 20 - Tue, Feb 24
Delta Logo
12:15 pm - 4:39 pm
DLH
-
DEN
5h 24m1 stop
Delta Logo
5:49 pm - 11:25 pm
DEN
-
DLH
4h 36m1 stop
$327Delta
Sat, Feb 21 - Sat, Feb 28
Delta Logo
4:18 pm - 8:05 pm
DLH
-
DEN
4h 47m1 stop
Delta Logo
11:10 am - 11:25 pm
DEN
-
DLH
11h 15m1 stop
$352Delta
Sat, Jan 24 - Tue, Jan 27
United Airlines Logo
3:05 pm - 8:12 pm
DLH
-
DEN
6h 07m1 stop
United Airlines Logo
7:50 am - 2:30 pm
DEN
-
DLH
5h 40m1 stop
$374United Airlines
Sat, Jan 24 - Tue, Jan 27
United Airlines Logo
3:05 pm - 8:12 pm
DLH
-
DEN
6h 07m1 stop
United Airlines Logo
7:50 am - 2:30 pm
DEN
-
DLH
5h 40m1 stop
$410United Airlines
Mon, Jan 12 - Fri, Jan 16
Delta Logo
4:24 pm - 8:05 pm
DLH
-
DEN
4h 41m1 stop
Delta Logo
5:51 pm - 11:52 pm
DEN
-
DLH
5h 01m1 stop
$416Delta
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.

How much is a round-trip flight from Duluth to Denver?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Duluth to Denver departing in January.

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 March and July, where the average cost of round-trip tickets is $528 and $442 respectively.

Good to know

Low seasonAugust
Cheapest flight$159
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly with an average 22% 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 $159 for a one-way ticket and $258 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?

    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 $336 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 $383 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 8007 reviews
8.5Crew
7.3Food
8.1Boarding
7.9Entertainment
7.9Comfort
Airline reviews

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

6.0 GoodJeff, Dec 2025
JFK - MIA
Read more Delta reviews

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

United have really come back. Airport and boarding process is clear and good, app and information also very good

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.

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

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!

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

Information on your arrival and departure airports