$166 Find Cheap Flights from Duluth to Colorado

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 Colorado departing on 6/16. 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 Colorado

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Duluth to Colorado, 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 Colorado, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% 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.

Flight Deals
Booking Insights
Flight Deals

Book Cheap Duluth to Colorado Plane Tickets

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

Sat, Oct 10 - Wed, Oct 14
Delta Logo
12:00 pm - 3:56 pm
DLH
-
DEN
4h 56m
1 stop
Delta Logo
6:00 pm - 10:48 pm
DEN
-
DLH
3h 48m
1 stop
$298Delta
Thu, May 28 - Sat, May 30
Delta Logo
5:15 am - 8:01 am
DLH
-
DEN
3h 46m
1 stop
Delta Logo
6:00 am - 12:04 pm
DEN
-
DLH
5h 04m
1 stop
$306Delta
Mon, May 18 - Sat, May 23
Delta Logo
5:15 am - 8:01 am
DLH
-
DEN
3h 46m
1 stop
Delta Logo
1:20 pm - 7:31 pm
DEN
-
DLH
5h 11m
1 stop
$313Delta
Thu, May 28 - Sat, May 30
Delta Logo
5:15 am - 8:01 am
DLH
-
DEN
3h 46m
1 stop
Delta Logo
6:00 am - 12:04 pm
DEN
-
DLH
5h 04m
1 stop
$318Delta
Tue, May 12 - Thu, May 21
Delta Logo
12:46 pm - 3:36 pm
DLH
-
DEN
3h 50m
1 stop
Delta Logo
6:00 am - 12:04 pm
DEN
-
DLH
5h 04m
1 stop
$323Delta
Wed, May 13 - Sun, May 17
Delta Logo
5:15 am - 8:01 am
DLH
-
DEN
3h 46m
1 stop
Delta Logo
6:00 am - 12:04 pm
DEN
-
DLH
5h 04m
1 stop
$328Delta
Wed, Jun 3 - Fri, Jun 5
Delta Logo
4:30 pm - 8:15 pm
DLH
-
DEN
4h 45m
1 stop
Delta Logo
4:10 pm - 10:44 pm
DEN
-
DLH
5h 34m
1 stop
$332Delta
Thu, Aug 20 - Sun, Aug 23
Delta Logo
4:20 pm - 10:29 pm
DLH
-
DEN
7h 09m
1 stop
Delta Logo
6:10 am - 10:57 am
DEN
-
DLH
3h 47m
1 stop
$337Delta
Fri, May 15 - Mon, May 18
Delta Logo
4:30 pm - 8:15 pm
DLH
-
DEN
4h 45m
1 stop
Delta Logo
9:06 am - 3:48 pm
DEN
-
DLH
5h 42m
1 stop
$343Delta
Sun, Jun 7 - Fri, Jun 12
Delta Logo
5:00 am - 10:00 am
DLH
-
DEN
6h 00m
1 stop
Delta Logo
6:00 am - 11:07 am
DEN
-
DLH
4h 07m
1 stop
$356Delta
Booking Insights

KAYAK's insights & trends for Duluth to Colorado flights

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

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 Colorado departing in October.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Duluth to Colorado, 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 Colorado is December, when tickets cost $68 (return) on average. On the other hand, the most expensive months are March and July, when the average cost of round-trip tickets is $528 and $368 respectively.

Good to know

Low seasonJanuary
Cheapest flight$154
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 44% lower on average.
Flight from Duluth to Denver

FAQs - booking Colorado flights

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

    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 Colorado.

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

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

    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 from Duluth to Colorado with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Duluth to Colorado?

    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 from Duluth to Colorado 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 Colorado

 
See real verified KAYAK customer reviews for airlines flying from Duluth to Colorado. 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 Colorado? 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 8464 reviews
8.5Crew
7.8Entertainment
7.2Food
8.1Boarding
7.9Comfort
Airline reviews

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

4.0 OkayBradley, Apr 2026
RDU - ATL
Read more Delta reviews

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

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.

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

It’s always a great time flying with united airlines.

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

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

Information on your arrival and departure airports