DLH - DEN

$178 Find Cheap Flights from Duluth to Denver - Compare and Save

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 9/2. 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

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Everything you should know

Cheapest round-trip
$308
Typical prices: $347-$263
Delta
Tue 10/13Sat 10/17
DLH - DEN • 1 stop
Cheapest one-way
$178
Delta
Wed 9/2
DLH - DEN • 1 stop
Top airlines
Cheapest • from $311 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Duluth and Denver. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $415 (round-trip)
Shortest trip • 5h 07m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 59% price drop
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

Tue, Oct 13 - Sat, Oct 17
Delta Logo
8:05 am - 12:03 pm
DLH
-
DEN
4h 58m
1 stop
Delta Logo
6:10 am - 11:15 am
DEN
-
DLH
4h 05m
1 stop
$308Delta
Wed, Sep 2 - Wed, Sep 16
Delta Logo
11:41 am - 3:23 pm
DLH
-
DEN
4h 42m
1 stop
Delta Logo
5:45 pm - 10:35 pm
DEN
-
DLH
3h 50m
1 stop
$311Delta
Sun, Oct 4 - Thu, Oct 8
Delta Logo
5:15 am - 10:03 am
DLH
-
DEN
5h 48m
1 stop
Delta Logo
2:20 pm - 7:36 pm
DEN
-
DLH
4h 16m
1 stop
$366Delta
Tue, Oct 20 - Sat, Oct 24
United Airlines Logo
6:00 am - 12:45 pm
DLH
-
DEN
7h 45m
1 stop
United Airlines Logo
6:00 am - 2:29 pm
DEN
-
DLH
7h 29m
1 stop
$378United Airlines
Tue, Nov 10 - Sat, Nov 14
United Airlines Logo
5:00 am - 10:30 am
DLH
-
DEN
6h 30m
1 stop
United Airlines Logo
9:48 am - 5:34 pm
DEN
-
DLH
6h 46m
1 stop
$388United Airlines
Sat, Jun 20 - Tue, Jun 23
Delta Logo
7:50 am - 12:10 pm
DLH
-
DEN
5h 20m
1 stop
Delta Logo
6:00 am - 11:08 am
DEN
-
DLH
4h 08m
1 stop
$392Delta
Tue, Jul 28 - Fri, Jul 31
Delta Logo
4:25 pm - 7:56 pm
DLH
-
DEN
4h 31m
1 stop
Delta Logo
6:00 am - 11:04 am
DEN
-
DLH
4h 04m
1 stop
$402Delta
Fri, Jul 3 - Fri, Jul 10
United Airlines Logo
6:25 pm - 11:48 pm
DLH
-
DEN
6h 23m
1 stop
United Airlines Logo
4:59 pm - 11:23 pm
DEN
-
DLH
5h 24m
1 stop
$420United Airlines
Sat, Jun 20 - Tue, Jun 23
Delta Logo
7:50 am - 12:10 pm
DLH
-
DEN
5h 20m
1 stop
Delta Logo
6:00 am - 11:08 am
DEN
-
DLH
4h 08m
1 stop
$427Delta
Tue, Jul 28 - Wed, Jul 29
Delta Logo
5:00 am - 8:06 am
DLH
-
DEN
4h 06m
1 stop
Delta Logo
9:19 am - 3:42 pm
DEN
-
DLH
5h 23m
1 stop
$438Delta
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 October.

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 $624 and $547 respectively.

Good to know

Low seasonJanuary
Cheapest flight$178
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 59% lower on average.
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 5 days, the lowest price for a flight from Duluth to Denver was $178 for a one-way ticket and $311 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 $367 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 $403 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 airlines flying 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 8396 reviews
7.8Comfort
8.5Crew
8.1Boarding
7.8Entertainment
7.2Food
Airline reviews

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

4.0 OkayMichelle, Jun 2026
ATL - PIT
Read more Delta reviews

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Flight was great! This flight from Atlanta was even better than when I paid for Comfort from SNA to Atlanta.

Connection flights should be spaced out farther because too close I missed my connection.

Definitely a southern flavor. Cordiality was evident even though no drinks or snacks were served.

On time! There were plenty of airport employees who were able to keep us moving in the right direction. The crew on the plane were professional.

Left /arrived on time. Decent seat space. Like the wifi/plugs and entertainment. Windows and tray table were kinda gross. Attendants didn't start snack service til 40mins before landing. Two rows before us, captain came on to say there's turbulence and recalled staff to seats. So, no drink/snack. Later, attendants didn't stop to see if we had trash nor even look our way. Felt invisible! Almost all pilot announcements were not only unintelligible, but so quiet. We had no idea what she said.

Average seat comfort, a drink and chips were provided, early boarding because we checked a carryon at the gate was nice. Ticket pricing shenanigans, including fees to pick a seat, check a bag, and get food onboard - evidence the industry is reinvigorating last century’s strategies- destroys the experience before one ever arrives at the airport. It’s difficult to recognize any value or sustain loyalty in the end-to-end process making air travel more drudgery than pleasure.

Gate agent was unhelpful for handicapped boarding. Flight attendant seemed untrained.

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Late- that’s what United does best. Missed my connection, rebooked to a flight 17 hours later and had to spend $500 on a hotel. What did I get? A $15 meal voucher. What can you get in an airport for $15. I hate United so much.

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

The entertainment options on the seat back video boards were nice.

The boarding process was straightforward. One pertinent observation regarding all boarding procedures is that if an individual requires assistance or possesses a special status and is part of preboarding, it is advisable to limit the number of passengers who can preboard with them, rather than the entire, sometimes large, companion groups. The seats are uncomfortable, and the entertainment options are significantly inferior compared to other airlines. During the snack service, I requested an additional bag of snacks, but my request was denied. Initially, the flight attendant agreed to my request.becoming a strange accurate moment. The flight duration was four hours.

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

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

Information on your arrival and departure airports